Carrier 30XV160, 30XV225, 30XV275, 30XV300, 30XV250 Controls, Start-up, Operation, Service And Troubleshooting Instructions

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Page 1

Controls, Start-Up, Operation, Service

and Troubleshooting

Page

SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . .2,3

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3,4

Conventions Used in This Manual. . . . . . . . . . . . . . . . 4

Abbreviations Used in This Manual . . . . . . . . . . . . . . 4

CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Touch Pilot™ Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Touch Pilot Display User Interface . . . . . . . . . . . . . . . 4

• WELCOME SCREEN

• HOME SCREEN

• STATUS MESSAGE BOX

• TOUCH PILOT LOGIN AND DISPLAY SETUP

• MAIN MENU SCREEN

• GENERAL CONFIGURATION TABLE

• TRENDINGS SCREEN

• MENU ARCHITECTURE

• SETTING TIME AND DATE

• WEB AND NETWORK INTERFACE

Input/Output (SIOB) Boards . . . . . . . . . . . . . . . . . . . 11

Auxiliary (AUX) Boards. . . . . . . . . . . . . . . . . . . . . . . . . . 11

Enable-Off-Remote Contact Switch (SW1). . . . . . . 15

Emergency On/Off Switch (SW2) . . . . . . . . . . . . . . . . 15

Energy Management Module (EMM). . . . . . . . . . . . . 15

Local Equipment Network. . . . . . . . . . . . . . . . . . . . . . . 16

Board Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Control Module Communication . . . . . . . . . . . . . . . . 16

•RED LED

• GREEN LED

Carrier Comfort Network

Remote Alarm and Alert Relays . . . . . . . . . . . . . . . . . 17

CONFIGURATION (SOFTWARE) . . . . . . . . . . . . 17-43

Touch Pilot Operation Configuration Tables . . . . 17

Touch Pilot Menu Tables. . . . . . . . . . . . . . . . . . . . . . . . 17

Machine Control Methods. . . . . . . . . . . . . . . . . . . . . . . 20

• OPERATING TYPE SELECTION

Machine On/Off Function . . . . . . . . . . . . . . . . . . . . . . . 21

• MACHINE START DELAY

• FAST LOADING

Chilled Water Setpoint Configuration . . . . . . . . . . . 22

• FLUID SETPOINT CONTROL LOCATION

• COOLING SETPOINT SELECTION

• DEFINING SET POINTS

• CURRENT OPERATING SETPOINT

• SETPOINT OCCUPANCY

• DEFINING OCCUPANCY SCHEDULE

• CHILLED WATER FLUID TYPE SELECTION

Evaporator Pump Control . . . . . . . . . . . . . . . . . . . . . . . 25

• PUMP SELECTION

• PERIODIC PUMP QUICK START

• MASTER/SLAVE CHILLER PUMP OPERATION

• CHILLED WATER FLOW SWITCH STATUS

• MANUAL OPERATION

(CCN) Interface . . . . . . 16

AquaForce

30XV140-325

Variable Speed Air-Cooled Liquid Chillers

with Greenspeed® Intelligence

™

and Touch Pilot

Circuit/Compressor Staging and Loading . . . . . . . 26

• CIRCUIT/COMPRESSOR STAGING

• CIRCUIT/COMPRESSOR LOADING/UNLOADING

Dual Chiller Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

• DUAL CHILLER CONTROL FOR PARALLEL APPLICATIONS

• DUAL CHILLER PUMP CONTROL FOR PARALLEL CHILLER APPLICATIONS

• DUAL CHILLER CONTROL FOR SERIES CHILLER APPLICATIONS

• DUAL CHILLER PUMP CONTROL FOR SERIES CHILLER APPLICATIONS

Ramp Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Temperature Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

• OUTSIDE AIR TEMPERATURE RESET

• DELTA T RESET (RETURN WATER RESET)

• 4-20 mA TEMPERATURE RESET

• SPACE TEMPERATURE RESET

Demand Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

• SWITCH CONTROLLED DEMAND LIMIT

• EXTERNALLY POWERED (4 to 20 mA) DEMAND LIMIT

• CCN LOADSHED CONTROLLED DEMAND LIMIT

Ice Storage Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Broadcast Configuration . . . . . . . . . . . . . . . . . . . . . . . . 40

• ACTIVATE

• OAT BROADCAST

• BROADCAST ACKNOWLEDGER

Alarm Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

• ALARM ROUTING CONTROL

• ALARM EQUIPMENT PRIORITY

• COMMUNICATION FAILURE RETRY TIME

• RE-ALARM TIME

• ALARM SYSTEM NAME

Daylight Saving Time Configuration. . . . . . . . . . . . . 41

Capacity Control Overrides . . . . . . . . . . . . . . . . . . . . . 41

Head Pressure Control (Variable Speed Fans) . . 42

Head Pressure Control (Fixed Speed Fans) . . . . . 42

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

System Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-46

Actual Start-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Operating Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

• TEMPERATURES

• VOLTAGE

• MINIMUM FLUID LOOP VOLUME

• FLOW RATE REQUIREMENTS

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47-52

Sequence of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . 47

• ACTUATED BALL VALVE (ABV)

Controls

Page

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53300166-01 Printed in U.S.A. Form 30XV-1T Pg 1 4-17 Replaces: New

Page 2

CONTENTS (cont)

Page

Dual Chiller Sequence of Operation . . . . . . . . . . . . . 47

• PUMP OPERATION

Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

• STARTUP DELAY IN EFFECT

• SECOND SETPOINT IN USE

• RESET IN EFFECT

• DEMAND LIMIT ACTIVE

• EVAPORATOR PUMP ROTATION

• PUMP PERIODIC START

• MASTER SLAVE CONTROL ACTIVE

• ICE MODE IN EFFECT

Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

• THERMISTORS

• TRANSDUCERS

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52-99

Economizer Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Electronic Expansion Valve (EXV) . . . . . . . . . . . . . . . 52

• MAIN EXV CONTROL

• ECONOMIZER EXV CONTROL

• EXV TROUBLESHOOTING PROCEDURE

Compressor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 55

• VI VALVE TROUBLESHOOTING

• SUCTION VICTAULIC COUPLING INSTALLATION

• COMPRESSOR OIL SYSTEM

Evaporator Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

• ISOLATION VALVE

• EVAPORATOR FREEZE PROTECTION

• LOW FLUID TEMPERATURE

• LOSS OF FLUID FLOW PROTECTION

• TUBE PLUGGING

• EVAPORATOR RETUBING

• TIGHTENING EVAPORATOR HEAD BOLTS

• INSPECTING/CLEANING HEAT EXCHANGERS

• EVAPORATOR CHILLED WATER FLOW SWITCH

All Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

• EVAPORATOR WATER TREATMENT

• PREPARATION FOR WINTER SHUTDOWN

Microchannel Heat Exchanger (MCHX) Condenser Coil Maintenance and Cleaning

Recommendations. . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

RTPF Condenser Coil Maintenance and Cleaning

Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

• REMOVE SURFACE LOADED FIBERS

• PERIODIC CLEAN WATER RINSE

• ROUTINE CLEANING OF RTPF COIL SURFACES

Condenser Fans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Refrigerant Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

• LEAK TESTING

• REFRIGERANT CHARGE

Safety Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

• COMPRESSOR PROTECTION

• OIL SEPARATOR HEATERS

Relief Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Variable Frequency Drives (VFDs). . . . . . . . . . . . . . . 63

• COMPRESSOR DRIVES

• CONDENSER FAN DRIVES

• VFD DISPLAY NAVIGATION

• VFD STATUS

• VFD CONFIGURATION TABLES

• VFD ALARM RESET

• VFD REPLACEMENT PROCEDURE

• LONG TERM STORAGE

MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Recommended Maintenance Schedule . . . . . . . . . 100

Page

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . 100-128

Alarms and Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

• CURRENT ALARMS

• RESETTING ALARMS

• ALARM HISTORY

• VFD ALARMS AND ALERTS

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

• BLACK BOX FUNCTION

• TROUBLESHOOTING GUIDE

Electrical Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Quick Test (Service Test). . . . . . . . . . . . . . . . . . . . . . . 116

APPENDIX A — TOUCH PILOT™

DISPLAY TABLES. . . . . . . . . . . . . . . . . . . . . . . . . 129-149

APPENDIX B — CCN POINT TABLE. . . . . . . . . 150-155

APPENDIX C — LON POINT TABLE . . . . . . . . . . . . 156

APPENDIX D — BACNET/MODBUS

TRANSLATOR POINTS . . . . . . . . . . . . . . . . . . . . . . . 157

APPENDIX E — PIPING AND

INSTRUMENTATION . . . . . . . . . . . . . . . . . . . . . . . . . . 158

APPENDIX F — MAINTENANCE SUMMARY

AND LOG SHEETS . . . . . . . . . . . . . . . . . . . . . . . . . 159, 160

APPENDIX G — EVAPORATOR HEATER SENSOR SET POINT

APPENDIX H — TOUCH PILOT WEB AND

NETWORK INTERFACE PARAMETERS . . . . . 162-168

APPENDIX I — COMPRESSOR CIRCUIT

BREAKER FACTORY TRIP SETTINGS . . . . . . . . . . 169

INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

START-UP CHECKLIST

FOR 30XV LIQUID CHILLERS . . . . . . . .CL-1 to CL-8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

SAFETY CONSIDERATIONS

Installing, starting up, and servicing this equipment can be hazardous due to system pressures, electrical components, and equipment location (roof, elevated structures, etc.). Only trained, qualified installers and service technicians should install, start up, and service this equipment. When working on this equipment, observe precautions in the literature, on tags, stickers, and labels attached to the equipment, and any other safety precautions that apply. Follow all safety codes. Wear safety glasses and work gloves. Use care in handling, rigging, and setting this equipment, and in handling all electrical components.

WARNING

Electrical shock can cause personal injury and death. Shut off all power to this equipment during installation and service. There may be more than one disconnect switch. Tag all disconnect locations to alert others not to restore power until work is completed.

WARNING

Electrical shock can cause personal injury and death. After unit power is disconnected, wait at least 20 minutes for the VFD (variable frequency drive) capacitors to discharge before opening drive.

Page 3

WARNING

CAUTION

DO NOT VENT refrigerant relief valves within a building. Outlet from relief valves must be vented in accordance with the latest edition of ANSI/ASHRAE (American National Standards Institute/American Society of Heating, Refrigerating and Air-Conditioning Engineers) 15 (Safety Code for Mechanical Refrigeration). The accumulation of refrigerant in an enclosed space can displace oxygen and cause asphyxiation. Provide adequate ventilation in enclosed or low overhead areas. Inhalation of high concentrations of vapor is harmful and may cause heart irregularities, unconsciousness or death. Misuse can be fatal. Vapor is heavier than air and reduces the amount of oxygen available for breathing. Product causes eye and skin irritation. Decomposition products are hazardous.

WARNING

DO NOT USE TORCH to remove any component. System contains oil and refrigerant under pressure.

To remove a component, wear protective gloves and goggles and proceed as follows:

a. Shut off electrical power to unit. b. Recover refrigerant to relieve all pressure from sys-

tem using both high-pressure and low pressure ports.

c. Traces of vapor should be displaced with nitrogen and

the work area should be well ventilated. Refrigerant in contact with an open flame produces toxic gases.

d. Cut component connection tubing with tubing cutter

and remove component from unit. Use a pan to catch any oil that may come out of the lines and as a gage for how much oil to add to the system.

e. Carefully unsweat remaining tubing stubs when nec-

essary. Oil can ignite when exposed to torch flame.

Failure to follow these procedures may result in personal injury or death.

CAUTION

Standard Tier units (units with S in the 10th position of the model number) must have the condenser fan(s) rotation verified to ensure proper phasing. Correct rotation is counter-clockwise (reference arrow on fan hub). Swap any two incoming power leads to correct condenser fan rotation before starting chiller. Operating the unit without testing the condenser fan(s) for proper phasing could result in equipment damage.

This unit uses a microprocessor control system. Do not short or jumper between terminations on circuit boards or modules; control or board failure may result.

Be aware of electrostatic discharge (static electricity) when handling or making contact with circuit boards or module connections. Always touch a chassis (grounded) part to dissipate body electrostatic charge before working inside control center.

Use extreme care when handling tools near boards and when connecting or disconnecting terminal plugs. Circuit boards can easily be damaged. Always hold boards by the edges and avoid touching components and connections.

This equipment uses, and can radiate, radio frequency energy. If not installed and used in accordance with the instruction manual, it may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to International Standard in North America EN 61000-2/3 which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user, at his own expense, will be required to take whatever measures may be required to correct the interference.

Always store and transport replacement or defective boards in anti-static shipping bag.

CAUTION

To prevent potential damage to heat exchanger tubes, always run fluid through heat exchanger when adding or removing refrigerant charge. Use appropriate antifreeze solutions in evaporator fluid loop to prevent the freezing of heat exchanger or interconnecting piping when the equipment is exposed to temperatures below 32 F (0° C). Proof of flow switch is factory installed on all models. Do NOT remove power from this chiller during winter shut down periods without taking precaution to remove all water from heat exchanger. Failure to properly protect the system from freezing may constitute abuse and may void warranty.

IMPORTANT: If the compressor VFD enclosure is removed for service, it must be reinstalled to protect the drive from water intrusion. Failure to reinstall the compressor VFD enclosure may constitute abuse and may void warranty.

CAUTION

DO NOT re-use compressor oil or any oil that has been exposed to the atmosphere. Dispose of oil per local codes and regulations. DO NOT leave refrigerant system open to air any longer than the actual time required to service the equipment. Seal circuits being serviced and charge with dry nitrogen to prevent oil contamination when timely repairs cannot be completed. Failure to follow these procedures may result in damage to equipment.

GENERAL

This publication contains Controls, Operation, Start-Up, Service and Troubleshooting information for the 30XV140325 air-cooled liquid chillers with Greenspeed and electronic controls. See Table 1. The 30XV chillers are equipped with Touch Pilot™ controls, electronic expansion valves, and variable speed fans and compressors. The Aqua-

Force

30XV chillers with Greenspeed intelligence come

equipped with a 7-in. Touch Pilot™ display.

intelligence

Page 4

Table 1 — Unit Sizes

Fig. 1 — Welcome Screen

30XV ACG-SR-10A2AA010

Fig. 2 — Home Screen

UNIT NOMINAL CAPACITY (TONS) 30XV140 140 30XV160 160 30XV180 180 30XV200 200 30XV225 225 30XV250 250 30XV275 275 30XV300 300 30XV325 325

Conventions Used in This Manual — The follow-

ing conventions for discussing configuration points for the Touch Pilot display will be used in this manual.

The menu items are shown in this document as they appear on the Touch Pilot display. A path name for each item will show the user how to navigate through the Touch Pilot display to reach the desired configuration. The arrow symbol () in the path name represents touching the menu item on the screen of the Touch Pilot

™

display. See Appendix A for a complete

list of Touch Pilot menu items and descriptions.

The CCN and BACnet* point names are shown in bold. See Appendix B for a list of CCN points, and Appendix D for a list of BACnet points.

Abbreviations Used in This Manual — The fol-

lowing abbreviations are used in this manual:

• ABV — Actuated ball valve

• AUX — Auxiliary (Board)

• BACnet — Building Automation and Controls Network.

Open Protocol for the controlled exchange of data between

two or more intelligent control devices or BMS. BACnet is

used over IP (Internet Protocol).

• CCN — Carrier Comfort Network

trolled exchange of data between two or more intelligent

PIC (Peripheral Interface Controller)/FID (Field Interface

Device) devices within the geographic confines of a single

building.

• CWFS — Chilled water flow switch

• DGT — Discharge gas temperature

• DPT — Discharge pressure

• EMM — Energy Management Module

• EWT — Entering water temperature

• HMI — Human Machine Interface

• LEN — Local Equipment Network. Protocol for the con-

trolled exchange of data between two or more intelligent

control devices within the geographic confines of a single

Carrier equipment installation.

• LPT — Liquid pressure transducer

• LWT — Leaving water temperature

• OAT — Outdoor air temperature

• SCT — Saturated condensing temperature

• SDT — Saturated discharge temperature

• SLT — Saturated liquid temperature

• SIOB — Standard Input/Output Board

• SM — System Manager

• SPT — Suction pressure transducer

• SST — Saturated suction temperature

. Protocol for the con-

Touch Pilot Display — The Touch Pilot module is the

core of the control system. It contains the major portion of operating software and controls the operation of the machine. See Web and Network Interface section on page 11.

The Touch Pilot module continuously monitors input/output channel information received from the SIOB and AUX boards. The Touch Pilot receives inputs from status and feedback switches, pressure transducers and thermistors. The Touch Pilot module, through the communications bus, also controls outputs on the SIOB and AUX boards. All inputs and outputs that control the chiller are located on other boards. Information is transmitted between modules via a 3-wire communication bus or LEN (Local Equipment Network).

The CCN (Carrier Comfort Network

) bus is also supported.

Connections to both LEN and CCN buses are made at terminal board TB3 located within the control box enclosure to the left of the Touch Pilot display.

Touch Pilot Display User Interface — The Touch

Pilot display is the standard user interface on all 30XV chillers with Greenspeed a large 7-in. LCD (liquid crystal display) touch screen for display and user configuration. A stylus is recommended for use on the touch screen. The stylus is included with the unit.

WELCOME SCREEN — The Welcome screen is the first screen shown after Touch Pilot starts. It displays the application name as well as the current software version number. See Fig. 1.

NOTE: If a communication failure occurs, the Touch Pilot Settings button is displayed (see the "Touch Pilot Display Port Connections" table on page 11 and the "Touch Pilot Display Interface and Connectors" figure on page 11 ).

To exit the Welcome screen, press the Home button . HOME SCREEN — The Home screen provides an overview

of system controls, allowing the user to monitor the vaporrefrigeration cycle. The screen indicates the current status of the unit, giving information on the unit capacity, refrigerant conditions, the status of the evaporator pumps, the active set point, and other information. See Fig. 2.

intelligence. The display includes

CONTROLS

The 30XV air-cooled liquid chillers contain the Touch Pilot™ electronic control system that controls and monitors all operations of the chiller. The control system is composed of several components as listed in the following sections. All machines have a Touch Pilot module, Standard Input/Output (SIOB) boards, Emergency On/Off switch, and an Enable-Off-Remote Contact switch. Table 2 lists power schematics by unit size.

*BACnet is a registered trademark of ASHRAE (American Society of Heating, Refrigerating, and Air-Conditioning Engineers).

Page 5

Table 2 — Control and Power Drawings

UNIT DESCRIPTION LOCATION

Typical Field Connections Wiring Schematic Fig. 70, page 117

Power Wiring Schematic (Std) Fig. 71, page 118

30XV140

30XV160

30XV180

30XV200

30XV225

30XV250

30XV275

30XV300

30XV325

Power Wiring Schematic (Mid) Fig. 73, page 120

Power Wiring Schematic (High)

Communication Wiring Fig. 78, page 125

Control Wiring Schematics Fig. 79-81, pages 126-128

Typical Field Connections Wiring Schematic Fig. 70, page 117

Power Wiring Schematic (Std) Fig. 71, page 118

Power Wiring Schematic (Mid)

Power Wiring Schematic (High)

Communication Wiring Fig. 78, page 125

Control Wiring Schematics Fig. 79-81, pages 126-128

Typical Field Connections Wiring Schematic Fig. 70, page 117

Power Wiring Schematic (Std) Fig. 71, page 118

Power Wiring Schematic (Mid)

Power Wiring Schematic (High)

Communication Wiring Fig. 78, page 125

Control Wiring Schematics Fig. 79-81, pages 126-128

Typical Field Connections Wiring Schematic Fig. 70, page 117

Power Wiring Schematic (Std) Fig. 71, page 118

Power Wiring Schematic (Mid)

Power Wiring Schematic (High)

Communication Wiring Fig. 78, page 125

Control Wiring Schematics Fig. 79-81, pages 126-128

Typical Field Connections Wiring Schematic Fig. 70, page 117

Power Wiring Schematic (Std) Fig. 71, page 118 Power Wiring Schematic (Mid) Fig. 73, page 120

Power Wiring Schematic (High)

Communication Wiring Fig. 78, page 125

Control Wiring Schematics Fig. 79-81, pages 126-128

Typical Field Connections Wiring Schematic Fig. 70, page 117

Power Wiring Schematic (Std) Fig. 71, page 118 Power Wiring Schematic (Mid) Fig. 73, page 120

Power Wiring Schematic (High)

Communication Wiring Fig. 78, page 125

Control Wiring Schematics Fig. 79-81, pages 126-128

Typical Field Connections Wiring Schematic Fig. 70, page 117

Power Wiring Schematic (Std) Fig. 71, page 118 Power Wiring Schematic (Mid) Fig. 73, page 120

Power Wiring Schematic (High)

Communication Wiring Fig. 78, page 125

Control Wiring Schematics Fig. 79-81, pages 126-128

Typical Field Connections Wiring Schematic Fig. 70, page 117

Power Wiring Schematic (Std) Fig. 72, page 119

Power Wiring Schematic (Mid)

Power Wiring Schematic (High)

Communication Wiring Fig. 78, page 125

Control Wiring Schematics Fig. 79-81, pages 126-128

Typical Field Connections Wiring Schematic Fig. 70, page 117

Power Wiring Schematic (Std) Fig. 72, page 119

Power Wiring Schematic (Mid)

Power Wiring Schematic (High)

Communication Wiring Fig. 78, page 125

Control Wiring Schematics Fig. 79-81, pages 126-128

Fig. 74, page 121 Fig. 75, page 122

Fig. 73, page 120 Fig. 75, page 122

Fig. 74, page 121 Fig. 75, page 122

Fig. 73, page 120 Fig. 75, page 122

Fig. 74, page 121 Fig. 75, page 122

Fig. 73, page 120 Fig. 75, page 122

Fig. 74, page 121 Fig. 75, page 122

Fig. 76, page 123 Fig. 77, page 124

Page 6

To display the SDT and SST for each circuit select the i. See

LEGEND

1—Unit capacity percentage 2—Unit status 3—Evaporator inlet and outlet water temperature 4—Pump status (if configured) 5—Active setpoint 6—SDT/SST (Ckt. A on LEFT, Ckt. B on RIGHT) 7—Outdoor air temperature

Fig. 3 — Home Screen with SDT/SST

3 4

Fig. 3.

Table 3 — Screen Buttons

BUTTON FUNCTION

TOP LEFT PANEL — GENERAL NAVIGATION

The following buttons appear on the top panel of the home screen. See Table 3 for more general screen buttons.

Main Menu — Press the Main Menu button to access all unit functions. See Main Menu Screen on page 8 for details.

Start/Stop — Press to access the chiller operating modes menu. See page 20 for details on available operating modes.

Alarm — The alarm icon turns solid or blinks red when a fault is detected. See page 100 for details on system alarms and alerts.

STATUS MESSAGE BOX — Messages may be displayed in the status bar at the bottom of the screen relevant to the current user action. See Table 4.

Home button: Goes back to the home screen. Button is disabled at power up, until the initialization is complete.

Main Menu button: Goes to the Main Menu screen from the Home screen. Allows access to unit menus and parameters. See page 8.

Back button: Goes to previous screen.

HMI Settings: Goes to the Touch Pilot settings. Button appears in the Welcome screen only when a communication failure occurs, to provide the user a chance to fix the problem.

TOP RIGHT PANEL — SPECIAL NAVIGATION

and

BOTTOM LEFT PANEL — ACTIONS SPECIFIC TO CURRENT SCREEN OPERATION

BOTTOM RIGHT PANEL — SCROLLING INSIDE CURRENT SCREEN

Login button: Goes to the User Login screen, where the user can select a display language and system of measurement, and log in. See page 8. Icon shows a closed lock when the user is not logged in, and an opened lock when the user is logged in.

Start / Stop button: Goes to the chiller start / stop screen. The icon can be gray, green, or blinking between gray and green. See the Machine Control Methods section on page 20.

Alarm button: Goes to the alarm menu screen.The icon can be gray, red, or blinking between gray and red. See the Alarms and Alerts section on page 100.

User Login screen: Login / Logout. Login button (green check mark) validates the currently entered user level (Basic, User, Service Or Factory), and jumps back to the previous screen. Logout button (red X) resets the user level and jumps to the Welcome screen.

Save/Cancel: Save button (disc icon) confirms changes. Cancel (red X) discards changes.

Force Screen: Set Force/Remove Force. Set Force button sends a CCN Force command to the point. Remove Force (AUTO) button sends a CCN Auto command to the point.

Up and Down arrows: Scroll within screen content. A page indicator shows what page is being viewed, and the total number of pages.

Page 7

Table 4 — Status Messages

MESSAGE STATUS

COMMUNICATION FAILURE! Equipment controller did not respond while reading the table content.

ACCESS DENIED!

LIMIT EXCEEDED! The value entered exceeds the parameter limit.

COMMAND ACCEPTED Force or Auto command was accepted by the Equipment Controller.

HIGHER FORCE IN EFFECT! Equipment controller rejects Force or Auto command.

Save changes? Modifications have been made. The exit must be confirmed by pressing Save or Cancel.

Invalid password! Entered password is not valid

Log level = basic Entered password is 0 = basic, login is allowed

Log level = User Entered password corresponds to the User password, login is allowed

Log level = Service Entered password corresponds to the Service password, login is allowed

Log level = Factory Entered password corresponds to the Factory password, login is allowed

PLEASE LOGIN Login required before accessing start/stop function

Select Machine Mode Default prompt when entering the Start/Stop screen.

Machine Status Application status message (see somewhere else)

Loading Data … Trend Manager is not ready yet.

TRENDING FIRMWARE MODULE ERROR!

BACNET FIRMWARE MODULE NOT FOUND!

Equipment controller denies access to one of the tables. See Touch Pilot Login and Display Setup, page 8.

Trend Manager detected a problem during its initialization sequence (file access or file content problem) and cannot display Trend/Log data.

BACNet module is not responding (its web server is not functional, or the whole module failed to start).

Too Many users connected! Please try again later … Maximum of 2 concurrent web server connections allowed.

Application Firmware must be downloaded!

The software detected a conflict between the version of the web server web pages, and the HMI application firmware.

Page 8

™

LEGEND

1—Arrows indicate selected language 2—Login button (confirm changes) 3—Logout button (cancel changes) 4—System of measurement selection 5—Password dialog box

Fig. 4 — User Login Screen

3 5

a30-5914

PRESS TO NAVIGATE THROUGH MENUS OR TABLES

Fig. 5 — Main Menu

Fig. 6 — General Parameters, Page 1

TOUCH PILOT

LOGIN AND DISPLAY SETUP — Certain control functions and navigation menus are password protected. There are multiple levels of user access on the Touch Pilot display, each with independent password protection:

• Basic — At initial start-up and after a timeout period, the

access type defaults to All. In this mode the user can view system operating conditions, and select the set point only.

• User — The User access level authorizes access to mod-

ify the Setpoint Table and some Configuration Menu parameters, as well as access to all menus accessible with the Basic mode. The default password for User level access is 11. To change the User access password, go to Main Menu  Configuration Menu  User Configuration, then enter the new password and press the Save button.

• Service — The Service access level authorizes access to

all menus and parameters needed for operation and service of the machine, including Quick Test and Maintenance Menus as well as additional Configuration Menus. The default password for Service level access is 88. To change the Service access password, go to Main Menu  Configuration Menu  Service Parameters, then scroll to the password entry area. Enter the new password and press the Save button.

• Factory — The Factory access level authorizes access to

all menus and parameters for the unit, including factory settings. The default password for Factory level access is

113. To change the Factory access password, go to Main Menu  Configuration Menu  Factory Menu, then scroll to the password entry area. Enter the new password and press the Save button.

To log in to the Touch Pilot display, press the Login button

on the Main Menu or the Home screen and input the required password on the User Login screen. Then press the Login button on the User Login screen. See Fig. 4.

Changing the Units of Measurement

— The User Login Screen (Fig. 4) offers 2 choices for units of measurement: US Imperial or Metric. The factory default is US Imperial. To change the measurement system, select the appropriate system on the User Login screen.

MAIN MENU SCREEN — The Main Menu provides access to the main control parameters, including general parameters, temperatures and pressures, inputs and outputs status, and others. Press the Main Menu button on the Home screen to access the Main Menu.

Figure 5 shows the first page of the Main Menu. To navigate through the pages, press the arrows at the lower right corner of the screen.

To view or modify system parameters, press the appropriate icon on the Main Menu. For example, to access the General Parameters table, press the General Parameters button .

Figure 6 shows the first page of the General Parameters table. Use the arrows at the bottom right corner to navigate the General Parameters table.

Changing the Touch Pilot Display Language Login Screen (Fig. 4) offers 2 language selections for the Touch Pilot Display: English or Spanish. The factory default language is English. To change the display language, simply select the language icon on the User Login screen.

— The User

Points that can be changed with the current level of user access are outlined by a box. For example, to modify the set point parameter, select the current set point as shown in Fig. 6 and enter the desired parameter.

The data entry screen will be displayed (Fig. 7). Use the graphic “keyboard” to modify the parameter, then press OK to save or EXIT to cancel the modifications.

Page 9

Since Setpoint Select (Fig. 6) is a forcible point (the op-

a30-5911

Fig. 7 — Data Entry Screen

Fig. 8 — Force Variable Screen

Fig. 9 — General Configuration, Page 1

LEGEND

1— Save 2— Cancel 3— Previous page 4— Next page

1 2 3 4

a30-5908

Fig. 10 — Trendings Screen, Page 1

Fig. 11 — Trendings Screen, Page 2

erator is able to manually override the auto function), the Force Variable screen will be displayed. See Fig. 8. The Force Variable screen provides the option to override the current operation of the unit.

TRENDINGS SCREEN — The Trendings screen allows for easy monitoring of parameters selected by the user. To access the Trendings screen, select Trendings on the Main Menu. See Fig. 10.

Select the parameters to be displayed by selecting the box to the left of the parameter name, then press save. Press the up/ down page buttons to see the graph showing the performance of the unit during a selected period of time. See Fig. 11.

Enter the forced value, then press to set the forced

point or to remove it (return to Auto). GENERAL CONFIGURATION TABLE — This table con-

tains configuration settings for the unit. Select Main Menu  Configuration Menu General Configuration to access the table (Fig. 9).

Press the field corresponding to the parameter to be modified and make the necessary changes. When all necessary changes have been made, press the Save button to confirm or the Cancel button to cancel changes. For a complete list of general parameters, see Appendix A.

a30-5909

Use the following buttons to adjust the Trendings display:

Press to adjust time and date settings for the display. See Fig. 11. Select the time/date boxes and use graphic keyboard to modify time/date; then select the to save your entries.

Navigate across the time line.

Go to beginning or end of selected period.

Zoom in to magnify the view.

Zoom out to expand the viewed area.

Refresh (reload) data.

MENU ARCHITECTURE — See Fig. 12-14 for Touch Pilot™ menu structure. The options displayed depend on the user’s access level as shown in the figures. The user can navigate through the Touch Pilot display screens by selecting the buttons that appear on the screen. When a button is selected, either a submenu or a list of parameters and values will be shown.

If the list of point names and values are shown, the top line of the display is the table name. Selecting an item will cause a Point Data dialog box to appear. For a complete list of tables and points with display names and CCN point names, see Appendix A.

Page 10

Fig. 12 — Main Menu and Alarm Menu Structure

HOME

MAIN MENU LOG IN/LOG OUT CONFIRM STOP CHOOSE OPERATING MODE ALARM MENU

GENERAL PARAMETERS

CONFIGURATION MENU

TEMPERATURES

OUTPUTS STAT US

MODES

QUICK TEST TABLE

TRENDINGS

PRESSURES

PUMPS STAT US

SETPOINT TABLE

MAINTENANCE MENU

INPUTS STAT US

RUN TIMES

RESET ALARMS

CURRENT ALARMS

ALARM HISTORIC

MAJOR ALARM HISTORIC

TO CONFIGURATION MENU

TO MAINTENANCE MENU

a30-5904

Fig. 13 — Configuration Menu Structure

GENERAL CONFIGURATION

RESET CONFIGURATION

BROADCAST MENU

FACTORY PARAMETERS

UPDATE RUNNING HOUR

COMPRESSOR ENABLE

PUMP CONFIGURATION

SCHEDULE MENU

DATE/TIME CONFIGURATION

FACTORY2 PARAMETERS

MASTER SLAVE CONFIG

EMAIL CONFIGURATION

USER CONFIGURATION

HOLIDAY MENU

CONTROL IDENTIFICATION

SERVICE PARAMETERS

BACNET PARAMETERS

a30-5905

Fig. 14 — Maintenance Menu Structure

CAPACITY CONTROL

EXV CONTROL

EXV ECO. CONTROL

VLT DRIVE MAINTENANCE

CONTROL LIMITS

FAN CONTROL

FAN DRIVE ADDRESSING

LAST POWER ON RESET

MASTER SLAVE CONTROL

FAN DRIVE MAINTENANCE

a30-5906

TROUBLESHOOT

LEGEND — FIG. 12-14

1—All (no password required) 2—User access required (default password = 11) 3—Service access required (default password = 88) 4—Factory access required (default password = 113)

NOTE: For more information about password access, see the section Touch Pilot

™

Page 11

SETTING TIME AND DATE — The date and time for the

Fig. 15 — Touch Pilot Display Interface and Connectors

controls can be set by opening the Main Menu  Configuration Menu  Date/Time Configuration. The date, time, day of the week, and daylight saving time option can be set on this screen.

WEB AND NETWORK INTERFACE — The Touch Pilot control can be configured to allow access via a standard, javaenabled web browser or over a network. See Appendix H for detailed information on setting up and accessing the Touch Pilot via the web or network interface. See Table 5 for port connections. See Fig. 15 for interface and connectors.

Table 5 — Touch Pilot Display Port Connections

CONNECTOR FUNCTION

X5 (Power)

X4 (LEN)

X3 (CCN)

X2 (Ethernet) —

X1 (USB) —

24 VAC + 24 VAC – RS485 Port (D+) RS485 Port (GND) RS485 Port (D–) RS485 Port (D+) RS485 Port (GND) RS485 Port (D–)

Input/Output (SIOB) Boards — There are two

SIOB (Standard Input/Output Boards) boards for each unit, SIOB-A (address 49) for Circuit A and SIOB-B (address

50) for circuit B. See Fig. 16. The board receives inputs from thermistors, transducers, demand limit switch, dual set point switch, remote-on-off switch, chilled water flow switch, oil level switch, pump interlock contact, compressor VFD enable contact, and evaporator heater current sensing switch, and provides output control to expansion valves, oil and VI solenoids, evaporator heater contactor, isolation valves, oil heater relays, customer supplied pump relays,

compressor VFD enable relays, and customer-supplied alarm and running relays. Information is transmitted between the SIOB boards and the Touch Pilot module via a 3-wire communication bus or LEN (Local Equipment Network). Connections for the LEN bus are J12 and J13. Each SIOB board has a 4-position DIP switch bank used for addressing of the board. SIOB-A is at address 49 and SIOBB is at address 50. See below for SIOB board DIP switch settings. See Tables 6 and 7 for a list of inputs and outputs for the two SIOB boards.

SIOB-A DIP Switch 1 2 3 4

Position: OFF OFF OFF OFF

SIOB-B DIP Switch 1 2 3 4

Position: ON OFF OFF OFF

Auxiliary (AUX) Boards — Two AUX boards, AUX

Board A (address 84) and AUX Board B (address 85), are installed in each unit. Each of the AUX boards has a set of jumpers, JP1 and JP2, which must be placed as shown in Fig. 17. The AUX boards respond to commands from the Touch Pilot results of the channels they monitor via the Local Equipment Network (LEN). See below for AUX board A and B DIP switch settings. See Tables 8 and 9 for a list of inputs and outputs for the AUX boards.

AUX BOARD A

DIP SWITCH

Address: ON ON OFF OFF ON OFF ON OFF

AUX BOARD B

DIP SWITCH

Address: OFF OFF ON OFF ON OFF ON OFF

™

module and send the Touch Pilot module the

12345678

1 2 3 45678

X1 - USB CONNECTOR X2 - ETHERNET CONNECTOR X3 - CCN CONNECTOR X4 - LEN CONNECTOR

TOUCH PILOT DISPLAY INTERFACE

X5 - POWER SUPPLY CONNECTOR (24 VAC)

X2X1

TOUCH PILOT BOTTOM VIEW

X5X4X3

a30-5895

Page 12

Fig. 16 — SIOB (Standard Input/Output Board)

a30-5864

DIP

SWITCH

GREEN LED - LEN

(Local Equipment Network)

RED LED - STAT US

Page 13

Table 6 — SIOB-A Inputs and Outputs

ITEM IN/OUT TYPE BOARD CONNECTOR CCN POINT DESCRIPTION

DI-01 Dry contact DI-02 Dry contact SETP_SW Dual Setpoint Switch DI-03 Dry contact LIM_SW1 Demand Limit Switch 1 OnOff DI-04 Dry contact — Not Used — DI-05 Dry contact J34 — Not Used — DI-06 Dry contact DI-07 Dry contact FLOW_SW Chilled Water Flow Switch (CWFS) DI-08 Dry contact HEATR_SW Cooler Heater Current Sensing Rly Feedback AI-01 Temp (5000 ) AI-02 Temp (5000 ) COOL_LWT Cooler Leaving Water Temperature AI-03 Temp (5000 ) OAT Outdoor Air Temperature AI-04 Temp (5000 ) CP_TMP_A Compressor A motor temperature AI-05 Temp (5000 ) ECO_T_A Economizer Temperature Circuit A AI-06 Pressure J11 DP_A Discharge Pressure Circuit A AI-07 Pressure J19 SP_A Suction Pressure Circuit A AI-08 Pressure J20 ECO_P_A Economizer Pressure Circuit A AI-09 Pressure J21 OP_A Oil Pressure Circuit A AI-10 4 to 20 mA J9 — Not Used — DO-01 Relay output DO-02 Relay output CPUMP_2 Customer Pump Relay #2 DO-03 Relay output DO-04 Relay output VFD_EN_A VFD Enable Output Circuit A DO-05 Relay contact J23 ALARM Alarm Relay DO-06 Relay contact J22 RUNNING Running Relay DO-07 Triac DO-08 Triac C_HEATER Cooler Heater Contactor DO-09 Triac VI_A VI Solenoid Control Compressor Circuit A DO-10 Triac ISO_POS_A Isolation Valve Relay Circuit A STPR1 Stepper motor J17 EXV_A EXV-A STPR2 Stepper motor J18 ECO_A ECEXV-A AO-01 0 to 10 VDC J10 — Not Used —

J25

ONOFF_ SW Remote On-Off Switch (SW1)

OIL_L_A Oil Level Switch Circuit A

COOL_EWT Cooler Entering Water Temperature

CPUMP_1 Customer Pump Relay #1

OIL_HT_A Oil Heater Contactor Circuit A

OIL_SL_A Oil Solenoid Circuit A

Table 7 — SIOB-B Inputs and Outputs

ITEM IN/OUT TYPE BOARD CONNECTOR CCN POINT DESCRIPTION

DI-01 Dry contact DI-02 Dry contact — Not Used — DI-03 Dry contact — Not Used — DI-04 Dry contact — Not Used — DI-05 Dry contact J34 — Not Used — DI-06 Dry contact DI-07 Dry contact FLOW_SWB Customer Supplied Pump Interlock Relay DI-08 Dry contact — Not Used — AI-01 Temp (5000 ) AI-02 Temp (5000 ) — Not Used — AI-03 Temp (5000 ) CHWSTEMP Dual chiller temperature (accessory) AI-04 Temp (5000 ) CP_TMP_B Compressor motor temperature Circuit B

AI-05 Temp (5000 ) ECO_T_B Economizer temperature Circuit B AI-06 Pressure AI-07 Pressure J19 SP_B Suction pressure Circuit B

AI-08 Pressure AI-09 Pressure AI-10 4 to 20 mA DO-01 Relay output

DO-02 Relay output — Not Used — DO-03 Relay output DO-04 Relay output VFD_EN_B VFD enable output Circuit B DO-05 Relay contact J23 — Not Used —

DO-06 Relay contact J22 — Not Used — DO-07 Triac DO-08 Triac BOX_HTR Control box heater DO-09 Triac VI_B Vi solenoid control compressor Circuit B DO-10 Triac ISO_POS_B Isolation valve relay Circuit B STPR1 Stepper motor J17 EXV_B EXV-B STPR2 Stepper motor

AO-01 0 to 10 VDC

J25

J11

J20 J21

J18 J10

OIL_L_B Oil level Circuit B

DP_B Discharge pressure Circuit B

ECO_P_B Economizer pressure Circuit B OP_B Oil pressure Circuit B

OIL_HT_B Oil heater contactor Circuit B

OIL_SL_B Oil solenoid Circuit B

ECO_B ECEXV-B

LEGEND

AI — Analog Input AO — Analog Output DI — Discrete Input DO — Discrete Output STPR — Stepper Motor Output

— Not Used —

— Not Used — — Not Used —

— Not Used —

Page 14

Table 8 — AUX Board A Inputs and Outputs

Fig. 17 — AUX Board

100K

CH1

CH2 CH3

CH4 CH5 CH6 CH7 CH8

TR1 TR2 TR3 TR4 TR5 TR6 TR7 TR8

STAT US SIO (LEN)

24 VAC

CH13 CH14

CH9

CH10

CH11

CH12

JP2

C61

CH13

D12

JP1

U21

Q10

Q11

U10

Q12

Q60

3 2 1

– G +

3 2 1

– G +

DIP SWITCH

J7 J8

RED LED - STAT US

GREEN LED - LEN (Local Equipment Network)

JUMPER JP2 JUMPER JP1

CHANNEL IN/OUT TYPE BOARD CONNECTOR CCN POINT DESCRIPTION (SEE NOTE 1)

CH 1 DO CH 2 DO FC2_A Fan A Stage 2 CH 3 DO FC3_A Fan A Stage 3

CH 4 DO FC4_A Fan A Stage 4 CH 5 DO CH 6 DO FC6_A Fan A Stage 6 CH 7 DO FC7_A Fan A Stage 7

CH 8 DO FC8_A Fan A Stage 8 CH 9 AO J4 CAPT010A % Capacity Circuit A (0-10Vdc) CH 10 AO J5 — Not Used CH 11 AI CH 12 AI SUCT_A Suction Gas Temperature Circuit A

CH 13 AI J7 LIQ_T_A Liquid Temperature Circuit A CH 14 AI J8 LIQ_P_A Liquid Pressure Circuit A

Table 9 — AUX Board B Inputs and Outputs

CHANNEL IN/OUT TYPE BOARD CONNECTOR CCN POINT DESCRIPTION (SEE NOTE 1)

CH 1 DO CH 2 DO FC2_B Fan B Stage 2 CH 3 DO FC3_B Fan B Stage 3 CH 4 DO FC4_B Fan B Stage 4 CH 5 DO CH 6 DO FC6_B Fan B Stage 6 CH 7 DO FC7_B Fan B Stage 7 CH 8 DO FC8_B Fan B Stage 8 CH 9 AO J4 CAPT010B % Capacity Circuit B (0-10Vdc) CH 10 AO J5 — Not Used CH 11 AI CH 12 AI SUCT_B Suction Gas Temperature Circuit B CH 13 AI J7 LIQ_T_B Liquid Temperature Circuit B CH 14 AI J8 LIQ_P_B Liquid Pressure Circuit B

Note: Fan A and B stage outputs are only used on STANDARD TIER units, identified by the 10th position in the model number.

FC1_A Fan A Stage 1

FC5_A Fan A Stage 5

DGT_A Discharge Gas Temperature Circuit A

FC1_B Fan B Stage 1

FC5_B Fan B Stage 5

DGT_B Discharge Gas Temperature Circuit B

Page 15

Enable-Off-Remote Contact Switch (SW1) —

Fig. 18 — Energy Management Module

221

100K

CH 17

CH 16

CH 18

CH 19

CH 20

CH 22

CH 21

CH 23

24 VAC

12 11

11b

CH 5

CH 6

CH 7

SIO LEN

+ G -

SIO LEN

J7B

J7A

J4 J3 J2B

J2A

24CH25

CH 11a

J9A

J9B

RED LED - STAT US

GREEN LED - LEN (Local Equipment Network)

The position of the Enable/Off/Remote contact switch is ignored except when the “remote mode” control type is selected. Refer to the Machine Control Methods section on page 20 for more details. A selection for Machine Control Method must also be made along with the correct position of the Enable-Off-Remote Contact Switch. This switch is installed in all units. It is a 3-position switch used to control the chiller. When switched to the Enable position, the chiller will be under its own control. When switched to the Off position, the chiller will shut down. When switched to the Remote Contact position, a field-installed dry contact can be used to start the chiller. The contacts must be capable of handling a 24VAC, 50-mA load. In the Enable and Remote Contact (dry contacts closed) positions, the chiller is allowed to operate and respond to the scheduling configuration and set point data.

Emergency On/Off Switch (SW2) — This switch is

installed in all units. The Emergency On/Off switch should only be used when it is required to shut the chiller off immediately. Power to all modules is interrupted when this switch is off and all outputs from these modules will be turned off.

Energy Management Module (EMM) — The EMM

is available as a factory-installed option or as a field-installed accessory. See Fig. 18. The EMM receives 4 to 20 mA inputs for the temperature reset, cooling set point and demand limit functions. The EMM also receives switch inputs for the fieldinstalled second stage 2-step demand limit and ice done functions. The EMM communicates the status of all inputs with the Touch Pilot module, and the controls adjusts the control point, capacity limit, and other functions according to the inputs received. See Table 10 for EMM board inputs and outputs.

CAUTION

Care should be taken when interfacing with other manufacturer’s control systems due to possible power supply differences, full wave bridge versus half wave rectification, which could lead to equipment damage. The two different power supplies cannot be mixed. Touch Pilot half wave rectification. A signal isolation device should be utilized if a full wave bridge rectifier signal generating device is used.

™

controls use

Page 16

Table 10 — EMM Board Inputs and Outputs

*Teflon is a registered trademark of DuPont.

CHANNEL

CH 01 AI CH 02 AI SPACETMP Space temperature AI-02 10K Thermistor CH 03 AI — — AI-03 5/10K Thermistor CH 04 AI — — AI-04 5/10K Thermistor CH 05 AI J7A SP_RESET Setpoint reset AI-06 0-5V CH 06 AI J7B LIM_ANAL Capacity limit AI-07 0-5V CH 07 AO J8 CAP_T % Total capacity running AO-01 0-10VdC CH 08 DI J4, CH8 OCC_OVSW Occupancy override DI-01 — CH 09 DI J4, CH9 LIM_SW2 Demand limit SW2 DI-02 — CH 10 DI J4, CH10 REM_LOCK Remote lockout switch DI-03 — CH 11a DI J4, CH11A ICE_SW Ice done DI-04 — CH 11b DI J4, CH11B — — DI-05 — CH 12 DI J5, CH12 — — DI-06 — CH 13 DI J5, CH13 — — DI-07 — CH 14 DI J5, CH14 — — DI-08 — CH 15 DI J5, CH15 — — DI-09 — CH 16 DO J2A CP_A Compressor A run status DO-01 Triac CH 17 DO J2A CP_B Compressor B run status DO-02 Triac CH 18 DO J2A — — — — CH 19 DO J2A — — — — CH 20 DO J2B — — — — CH 21 DO J2B — — — — CH 22 DO J2B — — — — CH 23 DO J2B — — — — CH 24 DO J3 SHUTDOWN Shutdown relay DO-09 Relay CH 25 DO J3 ALERT Alert relay DO-10 Relay

IN/OUT

TYPE

BOARD

CONNECTOR

CCN POINT

— — AI-01 5/10K Thermistor

Local Equipment Network — Information is trans-

mitted between modules via a 3-wire communication bus or LEN (Local Equipment Network).

Board Addresses — All boards (except the Touch Pilot

display and the Energy Management Module board) have DIP switches to set the address.

Control Module Communication

RED LED — Proper operation of the control boards can be visually checked by looking at the red status LEDs (lightemitting diodes). When operating correctly, the red status LEDs will blink in unison at a rate of once every 2 seconds. If the red LEDs are not blinking in unison, verify that correct power is being supplied to all modules and that all communication wiring is connected securely. Be sure that the Touch Pilot If necessary, reload current software. If the problem still persists, replace the Touch Pilot module. A red LED that is lit continuously or blinking at a rate of once per second or faster indicates that the board should be replaced.

GREEN LED — All boards have a green LEN (Local Equipment Network) LED which should be blinking when-

™

module is supplied with the current software.

POINT

DESCRIPTION

Carrier Comfort Network® (CCN) Interface —

All 30XV units can be connected to the CCN, if desired. The communication bus wiring is a shielded, 3-conductor cable with drain wire and is field supplied and installed. The system elements are connected to the communication bus in a daisy chain arrangement. The positive pin of each system element communication connector must be wired to the positive pins of the system elements on either side of it. The negative and signal ground pins of each system element must also be wired in the same manner. Wiring connections for CCN should be made at TB3. Consult the CCN Contractor’s Manual for further information. See Fig. 19.

NOTE: Conductors and drain wire must be 20 AWG (American Wire Gage) minimum stranded, tinned copper. Individual conductors must be insulated with PVC, PVC/ nylon, vinyl, Teflon*, or polyethylene. An aluminum/ polyester 100% foil shield and an outer jacket of PVC, PVC/nylon, chrome vinyl, or Teflon with a minimum operating temperature range of –20 C to 60 C is required. See Table 11 for recommended wire manufacturers and part numbers.

Table 11 — CCN Communication Bus Wiring

ever power is on. If the LEDs are not blinking as described check LEN connections for potential communication errors at the board connectors. A 3-wire bus accomplishes communication between modules. These 3 wires run in parallel from module to module. They connect to J9 on EMM and AUX boards, and to J12 or J13 on SIOB boards. A valid unit configuration must be in the Touch Pilot module for proper LEN communication.

MANUFACTURER

Alpha 1895 — American A21451 A48301 Belden 8205 884421 Columbia D6451 — Manhattan M13402 M64430 Quabik 6130 —

I/O POINT

NAME

PART NUMBER

Regular Wiring Plenum Wiring

INPUT/OUTPUT

TYPE

Page 17

It is important when connecting to a CCN communication

a30-4082

Fig. 19 — Touch Pilot CCN Communication Wiring

bus that a color-coding scheme be used for the entire network to simplify the installation. It is recommended that red be used for the signal positive, black for the signal negative, and white for the signal ground. Use a similar scheme for cables containing different colored wires.

At each system element, the shields of its communication bus cables must be tied together. If the communication bus is entirely within one building, the resulting continuous shield must be connected to a ground at one point only. If the communication bus cable exits from one building and enters another, the shields must be connected to grounds at the lightning suppressor in each building where the cable enters or exits the building (one point per building only). To connect the unit to the network:

1. Turn off power to the control box.

2. Cut the CCN wire and strip the ends of the red (+), white (ground), and black (–) conductors. (Substitute appropriate colors for different colored cables.)

3. Connect the red wire to (+) terminal on TB3 of the plug, the white wire to COM terminal, and the black wire to the (–) terminal.

4. The RJ14 CCN connector on TB3 can also be used, but is only intended for temporary connection (for example, a laptop computer running Service Tool).

IMPORTANT: A shorted CCN bus cable will prevent some routines from running and may prevent the unit from starting. If abnormal conditions occur, disconnect the CCN bus. If conditions return to normal, check the CCN connector and cable. Run new cable if necessary. A short in one section of the bus can cause problems with all system elements on the bus.

CONFIGURATION (SOFTWARE)

Touch Pilot™ Operation Configuration Tables —

ured for a range of operating conditions and equipment arrangements. The following parameters should be configured based on unique system layout and operating requirements.

The system parameters may be configured through the Touch Pilot interface or remotely through the CCN. Table 12 shows the Touch Pilot configuration required to access the unit on the CCN.

Table 12 — Touch Pilot Controller Identification

PATH DISPLAY NAME VALUE

Main Menu  Configuration Menu  Control Identification

The Touch Pilot control system can be config-

Configuration Table

CCN Element Number Default=1 CCN Bus Number Default=0 CCN Baud Rate Default=9600 Location Description Default=Blank

Touch Pilot Menu Tables — Touch Pilot operation is

controlled by configuration information entered in the configuration tables listed in Tables 13-16. Access to different parameters may be available to all users (BASIC) or password-protected (USER, FACTORY, or SERVICE). See Appendix A for detailed descriptions of all control tables and parameters.

Remote Alarm and Alert Relays — The 30XV chiller

can be equipped with remote alert and remote alarm annunciator contacts. Both relays connected to these contacts must be rated for a maximum power draw of 10 va sealed, 25 va inrush at 24 volts. The alarm relay, indicating that the complete unit has been shut down, can be connected to TB5-12 and TB5-21. Refer to unit wiring diagrams. For run relay, indicating that at least 1 circuit is off due to an alert state, a field-supplied and installed relay must be connected between TB5-13 and TB5-20.

Page 18

Table 13 — Main Menu Table

ITEM CCN MENU NAME ACCESS MENU TEXT DESCRIPTION MENU ICON

1 GENUINT ALL General Parameters

2 TEMP ALL Temperatures

3 PRESSURE ALL Pressures

4 INPUTS ALL Inputs Status

5 OUTPUTS ALL Outputs Status

6 PUMPSTAT ALL Pump Status

7 RUNTIME ALL Run Times

8 MODES ALL Modes

9 SETPOINT USER Setpoint Table

10 CONFIG USER Configuration Menu

11 QCK_TEST SERVICE Quick Test

12 MAINTAIN SERVICE Maintenance Menu

13 TRENDING ALL Trendings

Table 14 — Alarms Menu Table

ITEM CCN MENU NAME ACCESS MENU TEXT DESCRIPTION MENU ICON

1 ALARMRST USER Reset Alarms

2 CUR_ALM ALL Current Alarms

3 ALMHIST1 ALL Alarm Historic

4 ALMHIST2 ALL Major Alarm Historic

Page 19

Table 15 — Configuration Menu Table

ITEM CCN MENU NAME ACCESS MENU TEXT DESCRIPTION MENU ICON

1 GEN_CONF USER General Configuration

2 PUMPCONF USER Pump Configuration

3 USERCONF USER User Configuration

4 RESETCFG USER Reset Configuration

5 SCHEDULE USER Schedule Menu

6 HOLIDAY USER Holiday Menu

7 BROCASTS USER Broadcast Menu

8 DATETIME USER Date/Time Configuration

9 CTRL_ID USER Control Identification

10 FACTORY FACTORY Factory Parameters

11 FACTORY2 FACTORY Factory2 Parameters

12 SERVICE SERVICE Service Parameters

13 UPDTHOUR SERVICE Update Running Hour

14 MST_SLV SERVICE Master Slave Config

15 CMP_PI* SERVICE Comp PI Parameters

17 EXV_CFG* SERVICE EXV Configuration

18 DELTA* SERVICE Action Parameters

19 BACNET SERVICE BACnet Parameters

20 FAN_CFG* SERVICE Fan Configuration

21 ECO_PI* SERVICE EXV ECO PI Parameters

22 CP_UNABL SERVICE Compressor Enable

23 EMAILCFG SERVICE Email Configuration

* Tables available only through the CCN.

Page 20

Table 16 — Maintenance Menu Table

Fig. 20 — Machine Control Methods

ITEM CCN MENU NAME ACCESS MENU TEXT DESCRIPTION ICON

1 CAPACTRL SERVICE Capacity Control

2 VLT_DRV SERVICE VLT Drive Maintenance

3 LAST_POR SERVICE Last PowerOn Reset

4 EXV_CTRL SERVICE EXV Control

5 LIMITS SERVICE Control Limits

6 M_MSTSLV SERVICE Master Slave Control

7 ECO_CTRL SERVICE EXV Eco. Control

8 FAN_CTRL SERVICE Fan Control

9 FAN_DRV SERVICE Fan Drive Maintenance

10 TBLSHT SERVICE Troubleshoot Info

11 FAN_DRV2 SERVICE Fan Drive Addressing

Machine Control Methods — The unit state is deter-

mined based on a number of factors, including its operating type, active overrides, open contacts, master/slave configuration, or alarms triggered due to operating conditions. These parameters can be controlled by one of the following methods:

• Locally on unit: Local Control type

• Remotely through a user contact: Remote Control type

• Remotely through the CCN network: CCN Control type The main interface Start/Stop button is used to select one of

the above control types. In addition, when the Local control type is selected, this button can be used to select a particular functional mode: On, Off or Schedule mode. See Fig. 20. If the Start/Stop button is green the unit is running. If the Start/Stop button is gray the unit is not running. If the button is flashing green then the unit is preparing to start.

Table 17 summarizes the available operating types.

SHOWS THE LAST MODE

SELECTED

STA RT / STOP

BUTTON

a30-5917

Page 21

Table 17 — Operating Types

BACK BUTTON

a30-5894

Fig. 21 — Confirm Stop

OPERATING TYPE CONTROL METHOD

LOCAL — OFF

LOCAL — ON

LOCAL — SCHEDULE

NETWORK

REMOTE

MASTER

Local Off

Local On

Local Schedule

CCN None

Remote None

Master Master

OPERATING

MODES

OPERATING TYPE SELECTION — The operating type is selected through the main interface by pressing the Start/ Stop button .

If the unit is running, pressing the Start/Stop button displays a screen with a Confirm Stop button (see Fig. 21), which when pressed switches the chiller to Local Off mode. If the unit is Off, pressing the Start/Stop button shows a list of operating types with the currently selected type corresponding to the last running operating type (Fig. 20).

Start/Stop Selection Screen

— In Local mode (LEN bus), the Touch Pilot treats the Start/Stop button as a hotkey, and goes directly to the Start/Stop selection screen. In CCN mode, the Touch Pilot ignores Start/Stop key presses.

Start a Stopped Machine mode, press the gray Start/Stop button

— With the unit in the Local off

to display the list of

operating modes and select the required mode. Stop a Running Machine

— To stop a running unit, press the green Start/Stop button . Confirm the unit shutdown by pressing Confirm Stop or cancel by pressing the Back button (Fig. 21).

Once the unit has been stopped, the Home screen is

displayed. NOTE: Start/Stop a machine is not authorized through a web

connection for security reasons.

Machine On/Off Function — The machine operating

state can be viewed by going to Main Menu  General Parameters  Run Status. Table 18 summarizes possible unit states.

DESCRIPTION

The unit is under Local control method. It will remain halted and will ignore all CCN network commands and remote switch contacts.

The unit is under Local control method and will be allowed to start. The control will ignore all remote control contacts (except the demand limit contact) and all CCN network force commands (except the Emergency Stop Command).

The unit is under Local control method and will be allowed to start if the schedule #1 is occupied (chil_occ). Otherwise, the unit will remain off. The control will ignore all remote control contacts (except the demand limit contact) and all CCN network force commands (except the Emergency Stop Command).

The unit is under CCN control method and will be controlled by CCN force commands. The control will ignore all remote control contacts (except the demand limit contact).

The unit is under Remote control method and will be controlled by the start/ stop and set point contacts. In this mode, no CCN force command can affect the unit control except the Emergency Stop Command.

The unit is configured as the master unit in a two-unit master/slave plant. The master unit control method can be done locally, remotely or through CCN commands upon the master/slave configuration.

Table 18 — Unit States

STATE DESCRIPTION

Off Unit is commanded to be off Stopping

Delay

Running

Ready

Override Tripout Unit is Off due to an alarm

Test Unit is in Quick Test

Unit is currently stopping (after a manual, emergency, or shutdown request). Next state will be Off.

Unit is in delay at start-up (waiting for the end of the On/Off delay to be reached). Next state will be Running.

Unit compressor capacity is more that 0% (unit has started running)

Unit compressor capacity is 0%. Unit is ready to start.

The compressor cannot start because of an override (SST, SCT, etc.)

Table 19 summarizes the unit control method and stop or go status with regard to the following parameters set in the Touch Pilot:

• Active operating type: Operating Type as selected on the

unit Start-Stop screen.

• CHIL_S_S: Current CCN chiller start/stop force com-

mand (enable/disable). Main Menu  General Parame-

ters  Net:Cmd Start/Stop.

• Onoff_sw: Start-stop contact status when unit is under

remote operating type. Main Menu  Inputs Status 

Remote On/Off Switch.

• chil_occ state: Chiller occupied state. If the occupancy

override input switch is closed, the chiller remains occu-

pied regardless of the set point scheduled selection. Main

Menu  General Parameters  Net:Cmd Occupied.

• ms_ctrl: Master control type. This parameter status will

determine if the master unit is going to be controlled

locally, remotely, or through CCN. Main Menu  Main-

tenance Menu  Master Slave Control (0=disabled,

1=master, 2=slave).

• EMSTOP: CCN emergency stop command (enable/dis-

able). Main Menu  General Parameters  Emergency

Stop

• Alarm shutdown: Unit is totally stopped due to alarm.

Page 22

Table 19 — Start/Stop Control

ACTIVE OPERATING TYPE

Local Off (LOFF) — — — — — — Local Off

Local On (L-C) — — — — Disable No Local On

Local Schedule (L-SC)

Remote (rEM)

CCN

Master (MA St)

—————

LEGEND

chil_occ — Chiller Occupied State CHIL_S_S — CCN Chiller Start/Stop Command EMSTOP — Emergency Stop L-C — Local Control Operating Type L-SC — Local Schedule Operating Type MA St — Master/Slave Operating Type ms-ctrl — Master/Slave Control Onoff_sw — Remote On/Off Switch rEM — Remote Operating Type

CHIL_S_S Onoff_sw ms-ctrl chil_occ state EMSTOP

— — — Occupied Disable No Local On — — — Unoccupied — — Local Off — Open — — — — Remote Off — — — Unoccupied — — Remote Off

Closed Occupied — — Remote On

Disable — — — — — CCN Off

— — — Unoccupied — — CCN Off

Enable — — Occupied Disabled No CCN On

— — Local Unoccupied — — Local Off — Open Remote — — — Remote Off — — Remote Unoccupied — — Remote Off

Disable — CCN — — — CCN Off

— — CCN Unoccupied — — CCN Off — — Local Occupied Disable No Local On — Closed Remote Occupied Disable No Remote On

Enable CCN Occupied Disable No CCN On

All of the control type and unit state combinations listed in Table 19 will determine the actual unit running state. In addition, when under remote type control, unit Start/Stop actions will be determined by both On/Off and Occupied/Unoccupied status if the changeover option is enabled. If the changeover option is not enabled, only the On/Off switch will be used to command the unit to Start or Stop.

NOTE: When changing from one control method (Local, Remote, or CCN) to another, the unit will observe a transition through the Off state before being allowed to start again. At this time the on-to-off delay is always applied.

MACHINE START DELAY — An option to delay the start of the machine is available. This parameter is useful in keeping multiple machines from starting at the same time in case of a power failure. The parameter has a factory default of 1 minute. This parameter also has a role in the timing for a chilled water flow switch alarm. To configure this option with the Touch Pilot display, select Main Menu  Configuration Menu  General Configuration and select Unit Off to On Delay.

FAST LOADING — The Fast Capacity Recovery function allows for an accelerated unit start-up. This is especially useful following brief power outages at data centers where rapid restart can keep data center operating. This should not be used on normal comfort cooling applications. To activate the Fast Capacity Recovery, go to Main Menu  Configuration Menu  Service Parameters and set Fast Capacity Recovery. The available options are as follows:

• 0 (Normal Loading Sequence): Follows the set delays for

unit and circuit start up

• 1 (Quick Start Loading): Ignores Capacity Override #53

(ON/OFF Delay)

• 2 (Fast Capacity Recovery): Removes the unit start-up

delay, ignores Capacity Override #53 (ON/OFF Delay),

and allows both compressors to start at the same time

(with a 10-second delay between starts)

PARAMETER STATUS

Chilled Water Set Point Configuration — The

chilled water set point and fluid type configuration will determine the chiller operating conditions.

FLUID SET POINT CONTROL LOCATION — The factory default for the chilled water fluid set point is to control to the leaving water temperature. An option to configure the machine for entering water control is available. To configure this option go to Main Menu  Configuration Menu  Service Parameters. The default for Entering Fluid Control is No (leaving fluid control is the default condition).

COOLING SET POINT SELECTION — The control point represents the water temperature that the unit must produce. The unit will vary the capacity depending on the unit load operating conditions in order to satisfy the set point. The control point (CTRL_PNT) is calculated based on the active set point and the reset calculation, where Control Point = Active Setpoint + Reset. (See the section Temperature Reset on page 33 for more information about Reset.) The forced value can be used instead of any other set point calculation only when Network is selected as the operating type for the unit (go to Main Menu  General Parameters to verify operating type).

DEFINING SET POINTS — The cooling set points are set via the Setpoint Table (Main Menu  Setpoint Table). Cooling Setpoint 1 and Cooling Setpoint 2 are the temperatures that are selectable as the Active Set Points for the unit operation. These temperatures will be limited by the type of fluid in the system (see Table 20).

In addition to the Cooling set points, users can also select the Cooling Ice Setpoint and Cooling Ramp Loading from this menu. See the Ice Storage Operation section on page 40 for more details about the Cooling Ice Setpoint. Ramp Loading limits the rate at which the unit will change cooling water temperature (default is 1º F/min [0.6º C/min]).

All default set points are based on Leaving Water Control (Entering Fluid Control, EWTO set to No). Values must be

Alarm

Shutdown

Enable — — Off

—Yes— Off

CONTROL

METHOD

confirmed for the individual set points. Limits for the set points

UNIT

STATUS

Page 23

are listed in Table 20. These values depend on the Evaporator Fluid Type and the Brine Freeze Setpoint (see Chilled Water Fluid Type Selection on page 25).

Table 20 — Evaporator Fluid Set Point Limits

Set Point

Limits

Minimum* 38 F (3.3 C) N/A N/A Maximum 60 F (15.5 C) N/A N/A

*The minimum set point for brine applications is related to the brine freeze set point. The set point is limited to be no less than the brine freeze set point + 4° F (2.2° C).

EVAPORATOR FLUID TYPE (flui_typ)

1 = Water 2 = Medium Brine 3 = Low Brine

CURRENT OPERATING SET POINT — Depending on the current operation type, the active set point can be selected manually in the Main Menu, with the dry user contacts, with network commands (CCN or BACnet), or automatically with the set point time schedule (Occupancy Schedule 2).

Set points can be selected manually through the main interface when the unit is in Local operating type, through contacts when the unit is in Remote operating type, or through the RS485 bus when unit is in CCN mode.

Set points can also be selected automatically through a set point time schedule: when the period is occupied Cooling Setpoint 1 will be activated, and when the period is Unoccupied Cooling Setpoint 2 will be active. When in local operating type, time schedule is available if the Setpoint Select Variable is set to AUTO (see below). In remote operating type, the AUTO mode will be available unless the dual set point control through contacts has already been selected. In CCN mode, the set point selection always depends on the time schedule. The set point can be forced through the SP_OCC CCN point (0 = Occupied = Cooling Setpoint 1, 1 = Unoccupied = Cooling Setpoint 2).

Set point selection offers three different control options (Main Menu  General Parameters  Setpoint Select): Auto, Setpoint 1, and Setpoint 2.

• 0 = Auto: The active cooling set point will be determined

by the configured Occupancy Schedules. See the Defin-

ing Occupancy Schedule section for details on setting the

schedules. Depending on the Ice Storage configuration

Table 21 — Active Cooling Set Point Parameters

and ice contact state, the active set point may alternately be set to the Cooling Ice Setpoint.

• 1 = Setpoint 1: The active cooling set point will be Cooling Setpoint 1 defined in the set point table.

• 2 = Setpoint 2: The active cooling set point will be Cooling Setpoint 2 defined in the set point table. Depending on the Ice Storage configuration and ice contact state, the active set point may alternately be set to the Cooling Ice Setpoint.

SETPOINT OCCUPANCY — Setpoint Occupancy is the default configuration for the Setpoint Select variable. When Setpoint Select (Main Menu  General Parameters  Setpoint Select) is configured to 0 (Auto), the unit’s active set point is based on the programmed occupancy schedules. Under Time Schedule 1 (OCCPC01S), the unit controls to Cooling Set Point 1 (csp1) during the occupied periods. If the Time Schedule 2 (OCCPC02S) is in use, the unit’s active set point is based on Cooling Set Point 1 (csp1) (Main Menu  Setpoint Table  Cooling Setpoint 1) during the occupied period and Cooling Set Point 2 (csp2) (Main Menu  Setpoint Table  Cooling Setpoint 2) during the unoccupied period. The two schedules are used together to determine periods when the chiller will be controlling to Setpoint 1, Setpoint 2, or Off.

See Table 21 for details on how the active cooling set point is

determined based on unit operating type and parameter settings. DEFINING OCCUPANCY SCHEDULE — Two internal

Time Schedules are available and must be field programmed. Occupancy Schedule 1 (OCCPC01S) is used for single set point On/Off control. Occupancy Schedule 2 (OCCPC02S) is used in combination with OCCPC01S for dual set point On/Off and Occupied/Unoccupied set point control. To access the Schedule screens, go to Main Menu  Configuration Menu  Schedule Menu.

If the chiller is to be controlled to a single set point, use

Schedule 1 (OCCPC01S). This type of schedule will start and stop the machine only. During the unoccupied times, the chiller will be off. The unit start/stop schedule OCCPC01S has a default setting of always occupied. If the chiller is to be controlled to 2 set points, occupied and unoccupied, also use Schedule 2 (OCCPC02S). Cooling Setpoint 1 will be active during occupied periods, and Cooling Setpoint 2 will be active during unoccupied periods.

OPERATING

TYPE

Local

Remote

Network

* Ice Storage Configuration and Ice Done Contact apply only to units with energy management module (EMM).

Setpoint

Selection

sp-1 Default Any Any Default Cooling Setpoint 1 sp-2 No Any Any Default Cooling Setpoint 2 sp-2 Yes Closed Any N/A Cooling Setpoint 2

sp-2 Yes Open Any N/A Cooling Ice Setpoint automatic Default Any Any Occupied Cooling Setpoint 1 automatic No Any Any Unoccupied Cooling Setpoint 2 automatic Yes Closed Any Unoccupied Cooling Setpoint 2 automatic Yes Open Any Unoccupied Cooling Ice Setpoint

Default Default Any Open Default Cooling Setpoint 1 Default No Any Closed Default Cooling Setpoint 2

N/A Yes Closed Closed N/A Cooling Setpoint 2 Default Yes Open Closed Default Cooling Ice Setpoint Default Default Any Any Occupied Cooling Setpoint 1 Default Default Any Any Unoccupied Cooling Setpoint 2

Ice Storage

Configuration*

PARAMETER STATUS

Ice Done Contact*

Setpoint

Switch

Schedule 2 Status

ACTIVE SETPOINT

Page 24

To set the occupancy schedules, select OCCPC01S or OC-

Fig. 22 — Schedule Menu

SELECT THE DAYS FOR THIS PERIOD

SCHEDULE

SET THE

OCCUPIED TIMES

SAVE

CANCEL

PREVIOUS PERIOD

NEXT PERIOD

CPC02S and select the applicable days for the displayed time schedule period. The selected period will be displayed as a green band on the timeline. Press the Save button to confirm or the Cancel button to cancel changes. See Fig. 22.

The schedules consist of 8 user-configurable occupied time periods. The control supports time schedules for local control, remote control, and ice building. These time periods can be flagged to be in effect or not in effect on each day of the week. The day begins at 00:00 and ends at 24:00. The machine is in unoccupied mode unless a scheduled time period is in effect. If an occupied period is to extend past midnight, the occupied period must end at 24:00 hours (midnight) and a new occupied period must be programmed to begin at 00:00 hours.

In the example in Table 22, an early morning pulldown time period is scheduled for Monday morning from 12:00 AM to 3:00 AM. The occupied period starts at 7:00 AM, Monday through Saturday. The occupied time ends at 6:00 PM on Monday and Tuesday, 9:30 PM on Wednesday, 5:00 PM on Thursday and Friday, and 12:00 PM on Saturday.

NOTE: This example schedule was designed to illustrate the programming of the schedule function and is not intended as a recommended schedule for chiller operation.

Holiday Schedule

— The unit control allows up to 16 holiday periods. Each holiday period is defined by three parameters: the month, the start day, and the duration of the holiday period. During the holiday periods, the controller will be in occupied or unoccupied mode, depending on the periods validated as holidays. The Holiday Configuration Table is accessed by Main Menu  Configuration Menu  Holiday Menu. Select one of the 16 available Holiday periods (HOLDY_01 through HOLDY_16) to define the holiday.

CCN Global Time Schedule onboard occupancy schedules (OCCPC01S and OCCPC02S), the Touch Pilot

™

can also receive a time schedule broadcast

— In addition to the two

from another element in the CCN network.

The 30XV with Greenspeed

intelligence chillers can be configured to follow a CCN Global Time Schedule broadcast by another system element. The Occupancy Table (OCCPC01S) number must be changed to configure the unit to broadcast a Global Time Schedule. The Schedule Number can be set from 65 to 99 (OCCPC65S to OCCPC99S). When OCC1PxxS is set to a value of 65 or greater and all attached schedules are 00:00 (that is, no occupied time periods), an occupancy flag is broadcast over the CCN every time it transitions from occupied to unoccupied or vice-versa. The ComfortVIEW™ Network Manager’s Configure and Modify commands or the Service Tool’s Modify/Names function must be used to change the number of the Occupancy Equipment Part Table Name (OCCPC01E) to the Global Schedule Number. The Schedule Number can be set from 65 to 99 (OCCPC65E to OCCPC99E).

Table 22 — Configuring Schedules (Example)

ITEM PATH VALUE

Period 1 Occupied from Occupied to 03:00 Monday Select Yes Tuesday Select No Wednesday Select No Thursday Select No Friday Select No Saturday Select No Sunday Select No Holiday Select No

Occupied from Occupied to 18:00 Monday Select Yes Tuesday Select Yes Wednesday Select No Thursday Select No Friday Select No Saturday Select No Sunday Select No Holiday Select No

Occupied from Occupied to 21:30 Monday Select No Tuesday Select No Wednesday Select Yes Thursday Select No Friday Select No Saturday Select No Sunday Select No Holiday Select No

Occupied from Occupied to 17:00 Monday Select No Tuesday Select No Wednesday Select No Thursday Select Yes Friday Select Yes Saturday Select No Sunday Select No Holiday Select No

Occupied from Occupied to 12:00 Monday Select No Tuesday Select No Wednesday Select No Thursday Select No Friday Select No Saturday Select Yes Sunday Select No Holiday Select No

Main Menu Menu Schedule Menu 

OCCPC01S or OCCPC02S 

Main Menu Menu

OCCPC01S or OCCPC02S 

Main Menu Menu Schedule Menu 

OCCPC01S or OCCPC02S 

Main Menu Menu

OCCPC01S or OCCPC02S 

Main Menu Menu

OCCPC01S or OCCPC02S 

Configuration

Page 1

Period 2

Configuration

Schedule Menu 

Page 2

Period 3

Configuration

Page 3

Period 4

Configuration

Schedule Menu 

Page 4

Period 5

Configuration

Schedule Menu 

Page 5

00:00

07:00

When OCC1PxxS is set to a value of 65 or greater and a time schedule is configured for at least one occupancy period, the system will assume that the unit is going to be the master element for this schedule (the system element doing the broadcasting). In that case the unit Equipment and Supervisory part table names will be automatically modified to OCCPCxxE and OCCPCxxS.

Page 25

By configuring their appropriate Time Schedule decisions

Fig. 23 — Wiring for Evaporator Pump Control

to the same number, other devices on the network can follow this same schedule. The Enable/Off/Remote Contact must be in the Enable position or the Remote Contact position with the contacts closed for the unit to operate.

The Unit Run Status (Main Menu  General Parameters  Run Status) will indicate the current status of the machine depending on the schedule. The unit Occupied status (Main Menu  General Parameters  Setpoint Occupied) will indicate the current occupied schedule according to the schedule, either NO or YES.

The Status Unit Control Type (Main Menu  General Parameters) will be 0 when the switch is Off. The Status Unit Control Type will be 2 when the Enable/Off/Remote Contact switch input is On.

CCN Control

— To operate under this control, Network must be selected under the Select Machine Mode accessed by pressing the Start/Stop button (see the Operating Type Selection section on page 21).

An external CCN device such as Chillervisor controls the On/Off state of the machine. Careful evaluation of Chilled Water Plant control is necessary. In the event Local Control is established, be sure that all pumps, valves, and other devices are capable of operating properly. In the event of a loss of communication with the network, the machine will start and be controlled locally. The CCN device forces the variable CHIL_S_S to control the chiller. The Unit Run Status (Main Menu  General Parameters  Run Status) will indicate the current status of the machine (OFF, RUNNING, STOPPING or DELAY), depending on the CCN command. The unit Occupied status (Main Menu  General Parameters) will indicate the current occupied state according to the CCN command and will be displayed as either NO or YES. The Status Unit Control Type (ctrl_typ) will be LOCAL OFF when the Start/Stop button is Off. The Status Unit Control Type will be CCN when the Enable/Off/Remote Contact switch input is Closed and the CHIL_S_S variable is Stop or Start. For dual chiller control applications, the slave chiller must be enabled using the CCN CONTROL option.

CHILLED WATER FLUID TYPE SELECTION — The chilled water fluid type must be configured to obtain the proper leaving water set point control range and freeze protection. The Evaporator Fluid Type (flui_typ) (Main Menu  Configuration Menu  Service Parameters  Evaporator Fluid Type) can be set to water or brine.

To configure this option:

DISPLAY

NAME

Evaporator Fluid Type

Fresh Water

PATH VALUE

1 = Water 38 to 60 F

Main Menu  Configuration Menu  Service Parameters

2 = Medium brine

3 = Low brine N/A

— Configure the unit Evaporator Fluid Type to

SETPOINT

RANGE

(3.3 to 15.5 C) N/A

Water for units without brine or glycol installed in the chilled water loop. The factory default fluid type is fresh water. This option will allow for a water temperature set point range of 38 to 60 F (3.3 to 15.5 C). With water as the selection, the freeze point is fixed at 34 F (1.1 C).

Evaporator Pump Control — Evaporator pump con-

trol is required on all units unless the chilled water pump runs continuously or the chilled water system contains a suitable antifreeze solution. The 30XV units with Greenspeed ligence can be configured for single or dual external evaporator pump control with the standard controls. In addition to the pumps, all wiring including connections to the pump contactor and a feedback circuit from the contactor must be field

intel-

supplied. Table 23 summarizes evaporator pump configuration parameters. Fig. 23 shows the wiring.

Table 23 — Evaporator Pump Configuration

Parameters

DISPLAY NAME PATH VALUE

Evaporator Pumps Sequence

Pump Auto Rotation Delay

Pump Sticking Protection

Flow Checked If Pump Off

Main Menu Configuration Menu Pump Configuration

0 = No Pump (Default) 1 = One Pump Only 2 = Two Pumps Auto 3 = Pump #1 Manual 4 = Pump #2 Manual

Default: 48 hrs. (Range 24 to 3000 hrs.)

Default: No

Default: Yes

PUMP SELECTION — The Evaporator Pump Sequence mode can be reached by following Main Menu  Configuration Menu  Pump Configuration. The available settings are:

• 0 = No Pump: The evaporator pump will not be controlled by the chiller. This is the default setting.

• 1 = One Pump Only: If only one pump is selected it will be the active pump.

• 2 = Two Pump Auto: When two pumps are selected in auto mode, only one pump will be allowed to run at a time and the control will determine the On/Off state of each pump. The control will start the pumps and automatically alternate the operation of the pumps to even the wear on the pumps, based on the hours configured under Pump Auto Rotation Delay (Main Menu  Configuration Menu  Pump Configuration  Pump Auto Rotation Delay). If the difference between the operating hours of the two pumps exceeds the Pump Auto Rotation Delay the lead pump will change. If a flow failure is detected, the other pump will attempt to start.

• 3 = Pump #1 Manual: Pump #1 will be the active pump.

• 4 = Pump #2 Manual: Pump #2 will be the active pump. When the Evaporator Pumps Sequence is configured, the

evaporator pump output will be energized when the chiller enters an On state. Proof of flow from the chilled water flow switch (CWFS) is required for the unit to start mechanical cooling. The evaporator pump output is also energized when certain alarms are generated. The evaporator pump output should be used as an override to the external pump control if evaporator pump control is not utilized. The evaporator pump output is energized if a 10001 Evaporator Freeze Protection alarm is generated, which provides additional freeze protection if the system is not protected with a suitable antifreeze solution.

If the Master/Slave function is not active for the chiller

or if the Master/Slave function is active and the unit is the lead, the pump will be turned on when the unit is in On, Stopping or Delay state. In addition, when the unit is turned off the pump will continue operating for 20 seconds after

Page 26

the last compressor is turned off. The pump will be turned on when requested by the evaporator heater function (see the Evaporator Freeze Protection section on page 59).

PERIODIC PUMP QUICK START — The control system has the ability to start the pumps periodically to maintain bearing lubrication and seal integrity. This function will be used when the unit is stopped for a long time period (e.g., during the winter season). If Pump Sticking Protection (Main Menu  Configuration Menu  Pump Configuration  Pump Sticking Protection) is set to YES and if the unit is off at 2:00 PM, a pump will be started once each day for 45 seconds. If the unit has 2 pumps, Pump 1 will be started on even days (such as day 2, 4, or 6 of the month); Pump 2 will be started on odd days (such as day 1, 3 or 5 of the month). The default for this option is NO.

MASTER/SLAVE CHILLER PUMP OPERATION — If the Master/Slave function is active and if the chiller is the lag unit, then the pump will be turned on when the unit is in On mode and if the unit active lag demand limit is greater than 1%. Otherwise, the pump will be stopped 30 seconds after the last compressor is turned off. However, if the lag unit pump has been configured to run even if the unit is commanded to stop (Main Menu  Configuration Menu  Master Slave config  Lag Unit Pump control = 1) then the above condition will be ignored and the lag pump will run all the time.

CHILLED WATER FLOW SWITCH STATUS — If Flow Checked if Pump Off (Main Menu  Configuration Menu  Pump Configuration  Flow Checked if Pump Off) is set to YES, the control will monitor the chilled water flow switch status and will send an alarm if the pump is commanded off and the chilled water flow switch is closed. This can provide the user with information of a faulty evaporator pump contactor or a failed chilled water flow switch. This parameter should be set to NO for series flow machines. The factory default for this item is YES.

MANUAL OPERATION — The evaporator pumps can be forced ON through the CCN when the chiller is off. This allows the unit to run with no delay and for an unlimited length of time for flow rate calculations when the unit is installed on site. Manual operation of the pumps is controlled through CCN points CPUMP_1 (Main Menu  Pump Status) and CPUMP_2 (Main Menu  Pump Status (0 = OFF, 1 = ON).

Circuit/Compressor Staging and Loading —

The AquaForce® 30XV chillers with Greenspeed® intelligence employ one compressor per circuit. As a result, circuit and compressor staging are the same. The control has several control option parameters to load the compressors. The circuit/compressor start can be configured as well as the loading of each circuit/compressor.

CIRCUIT/COMPRESSOR STAGING — The control can be configured to decide which circuit/compressor starts first. Three options for this variable are allowed: Automatic Lead-Lag, Circuit A Leads, or Circuit B Leads. The factory default is Automatic Lead-Lag.

The automatic lead-lag function determines which circuit/compressor starts first to even the wear on the compressors. The control system determines the lead circuit to equalize the operating time of each circuit (value weighted by the number of start-ups of each circuit). As a result, the circuit with the lowest number of operating hours always starts first. The parameter can also be configured to always start a particular circuit/compressor first.

To configure this option:

DISPLAY NAME PATH

Main Menu

Circuit Priority Sequence

Configuration Menu



General Configuration



LINE

NO.

1 0 = Auto

VALUE

1 = Ckt A Priority 2 = Ckt B Priority

CIRCUIT/COMPRESSOR LOADING/UNLOADING — The control uses an equal compressor loading and unloading scheme as described below to optimize the efficiency of the unit.

At start-up, the control starts the lead compressor at the lowest frequency and then continues to load it up by increasing frequency output of the corresponding VFD. If the load reaches 65% of circuit load, then the control starts the lag compressor at its minimum frequency. While the lag compressor starts to load up, the lead compressor may ramp down to equalize with lag compressor, depending on conditions. When the loading of both compressors match, they continue to load up or load down in unison in response to the capacity demand.

In the process of unloading, if both the compressors reach minimum frequency/load level, any further drop in capacity will cause the lag compressor to switch off and the lead compressor to ramp up until load is met again. Eventually with decrease in load the compressor goes down to minimum frequency/load and then shuts down. See Fig. 24 for a graphical representation of initial system loading and unloading. (Figure 24 shows an example of possible compressor loading for a given scenario. Since the controls are adaptive, actual loading may vary.)

Dual Chiller Control — The dual chiller function al-

lows for master/slave control of two units installed in parallel or series arrangement supplying chilled fluid on a common loop. The chillers must be linked by the Carrier Comfort Net-

work

(CCN) network and operate on the same bus.

When the units are installed for parallel operation and chilled water control is done on the outlet side of the units, the dual chiller accessory kit (P/N 00EFN900044000A) is required. The kit includes additional leaving fluid temperature thermistors that must be installed on the common chilled water leaving piping as described in the Installation Instructions for the kit. The leaving fluid temperature sensors will be connected to each chiller as described in the installation instructions. When the chilled water control is done on the inlet side of the parallel units no additional temperature sensor is required. See the Field Wiring section in the 30XV Installation Instructions for dual chiller LWT sensor control wiring. When chillers are configured to operate in series mode no additional chilled water temperature sensor is required.

The master chiller will monitor all external commands such as start/stop, demand limiting or set point select, and needs to be started in Master operating type. The commands are transmitted automatically to the slave unit, which must operate in CCN (Network) mode. The slave chiller has no action in the master/slave operations; it will only verify that CCN communication with the master chiller is correct. If the master chiller is turned off while the master/slave function is active then the slave chiller will be stopped. Under certain circumstances, the slave unit may be started first to balance the run times of the two units. In the event of a communication failure between the two units, each unit will return to an autonomous operating mode until the fault is cleared. If the master unit is stopped due to an alarm, the slave unit is authorized to start and therefore the slave unit configurations should be verified with desired set points.

Page 27

The CCN communication port for the Master and Slave

Fig. 24 — Initial Compressor Loading/Unloading Method

NOTE: After compressors are fully loaded, they will both load and unload equally with the VFDs (variable frequency drives).

chillers must be joined using a shielded cable in order to avoid communication issues.

The master/slave linkage will not be allowed to operate if any one of the slave chiller CTRL_PNT, DEM_LIM, LAG_LIM, or LCW_STPT variables has a force priority higher than a control force. In that case, the master/slave operations will not be allowed or will be disabled.

The control algorithm relies on several parameters that must be field configured for operation. Both chillers must be on the same CCN bus with different addresses. On both chillers, Master/Slave Select (Main Menu  Configuration Menu  Master Slave config  Master/Slave Select) must be enabled (set to 1 or 2). The water piping arrangement must be specified with the Chiller in Series variable (Main Menu  Configuration Menu  Master Slave config  Chiller in Series). The Master chiller must be programmed with the Slave Address (Main Menu  Configuration Menu  Master Slave config  Slave Address). Additional optional programming parameters may be configured to meet application requirements.

The Lead Lag Select variable (Main Menu  Configuration Menu  Master Slave config  Lead Lag Select) determines which chiller is the lead machine. The options are: Always Lead, Lag Once Failed Only, and Lead/Lag Runtime Select. Under Runtime Select control, the lead chiller will change based on the time increment selected in the Lead/Lag Balance Delta configuration (Main Menu  Configuration Menu  Master Slave config  Lead/Lag Balance Delta). If the run hour difference between the master and the slave remains less than the Lead/ Lag Balance Delta, the chiller designated as the lead will remain the lead chiller. The Lead/Lag changeover between the master and the slave chiller due to hour balance will occur during chiller operating odd days, such as day 1, day 3, and day 5 of the month, at 12:00 a.m. If a lead chiller is not designated, the master chiller will always be designated the lead chiller.

The dual chiller control algorithm has the ability to delay the start of the lag chiller in two ways. The Lead Pulldown Time parameter (Main Menu  Configuration Menu  Master Slave config  Lead Pulldown Time) is a one-time time

delay initiated after starting the lead chiller, before checking whether to start an additional chiller. This time delay gives the lead chiller a chance to remove the heat that the chilled water loop picked up while inactive during an unoccupied period. The second time delay, Lead/Lag Start Timer (Main Menu  Configuration Menu  Master Slave config  Lead/Lag Start Timer) is a time delay imposed between the last stage of the lead chiller and the start of the lag chiller. This prevents enabling the lag chiller until the lead/lag delay timer has expired.

A quicker start of the lag chiller can be accomplished by configuring the Lag Unit Pump Control parameter (Main Menu  Configuration Menu  Master Slave config  Lag Unit Pump Control). If the difference between the common leaving water temperature and the set point is greater than the configured value, then the lag chiller will start.

A minimum on time for the lag chiller can be programmed with the Lag Minimum Running Time configuration (Main Menu  Configuration Menu  Master Slave config  Lag Minimum Running Time). This parameter causes the control to run the lag chiller for the programmed minimum On time. The Lag Unit Pump Control (Main Menu  Configuration Menu  Master Slave config  Lag Unit Pump Control) can be configured such that the pump can be on or off while the chiller is off. This parameter is only active in Parallel Chiller Operation.

The lead chiller is started first and the lag chiller will be maintained at zero percent capacity through master forcing the lag demand limit value (LAG_LIM) to 0%. The lag water pump will be maintained off. When the lead chiller cannot be loaded anymore (because it is loaded at its full available capacity or at the master demand limit value) then the lag start timer is started. When the lag start time has elapsed, if the error on the master controlled set point is greater than the dead band (start_di) and if the pulldown time is elapsed then the lag chiller water pump will be turned on (if required by configuration) and the lag chiller will be allowed to start through the master chiller forcing the lag chiller demand limit value (LAG_LIM) to its own demand limit value. To ensure that the lag chiller will be unloaded first in case of water load decrease, the lead chiller

Page 28

set point error will be reset downwards by 4° F (2.2° C) provided that the lead capacity is not zero.

Each dual chiller application, Parallel and Series, is de-

scribed separately below. DUAL CHILLER CONTROL FOR PARALLEL APPLI-

CATIONS — To configure the master chiller for parallel applications, see Table 24. To configure the slave chiller for parallel applications, see Table 25.

DUAL CHILLER PUMP CONTROL FOR PARALLEL CHILLER APPLICATIONS — Parallel chiller control with dedicated pumps is recommended. The chiller must start and stop its own water pump located in its own piping. If pumps are not dedicated for each chiller’s piping, chiller isolation valves are required; each chiller must open and close its own isolation valve through the control. Figures 25-28 show typical pump arrangements for dual chiller parallel applications.

Although not recommended, it is possible to configure the system with no individual pump control. In applications where the unit is configured for fresh water (Main Menu  Configuration Menu Service Parameters, Evaporator Fluid Type=1 [Fresh Water]), and Set Point temperature is close to

the lower limit of the fresh water range, it is possible for changeable leaving water conditions as the chilled water flow rate drops to an operating unit, causing the leaving chilled water temperature to drop and initiate the evaporator freeze protection override. Constant flow applications may alleviate this issue. In constant water flow applications, the master chiller should be the primary control source for the chilled water pump. The slave chiller should have override capability. In the event of a communication failure between the master and slave chillers, the slave chiller will operate as a stand-alone machine and therefore must be able to enable the chilled water pump.

DUAL CHILLER CONTROL FOR SERIES CHILLER APPLICATIONS — When chillers are configured to work in series mode no additional chilled water supply sensor is required. The master chiller will be installed downstream of the slave chiller (the slave chiller outlet fluid is the master inlet fluid). If pump control is required, it will be controlled by the master chiller.

To configure the master chiller for series applications, see Table 26. To configure the slave chiller for series applications, see Table 27.

Page 29

Table 24 — Dual Master Chiller Control Parameters for Parallel Applications

DISPLAY NAME PATH VALUE

Master/Slave Select

Master Control Type

Slave Address

Lead Lag Select

Lead/Lag Balance Delta

Lead/Lag Start Timer

Lead Pulldown Time

Start If Error Higher Lag Minimum Running

Time

Lag Unit Pump Control

Chiller In Series

Main Menu

Configuration Menu Master Slave config

1 (Master) Default: 0 (Disable)

1=Local Control 2=Remote Control 3=CCN Control Default: 1(Local) Configure for proper control type.

Must be set to the Slave Chiller’s address. The Master and Slave chiller must have different addresses and be on the same Bus Number Default: 2

0 (Master Always Leads) 1 (Lag One Failed Only) 2 (Lead/Lag Runtime Select) Default: 0 (Master Always Leads)

Range: 40 to 400 hours Default: 168 hours

Range: 2 to 30 minutes Default: 10 minutes

Range: 0 to 60 minutes Default: 0 minutes

Range: 3.0 to 18 F (1.7 to 10.0 C) Default: 4.0 F (2.2 C)

Range: 0 to 150 minutes Default: 0 minutes

0 (Stop If Unit Stops) 1 (Run If Unit Stops) Default: 0 (Stop If Unit Stops)

No (Not in Series) Default: No

Table 25 — Dual Slave Chiller Control Parameters for Parallel Applications

DISPLAY NAME PATH VALUE

Master/Slave Select

Master Control Type

Slave Address

Lead Lag Select

Lead/Lag Balance Delta

Lead/Lag Start Timer

Lead Pulldown Time

Start If Error Higher

Lag Minimum Running Time

Lag Unit Pump Control

Chiller In Series

NOTE: If pump control is configured to OFF (Master), then Lag Unit (Slave) Pump Control= 1. If pump control is set to any other value, then

Main Menu

Configuration Menu Master Slave config

Lag Unit (Slave) Pump Control = 0. This configuration must be set consistently for both master and slave chillers.

2 (Slave) Default: 0 (Disable)

1=Local Control 2=Remote Control 3=CCN Control Default: 1(Local) Configure for proper control type.

Must be set to the Slave Chiller’s address. The master and slave chiller must have different addresses and be on the same Bus Number Default: 2

0 (Master Always Leads) 1 (Lag Once Failed Only) 2 (Lead/Lag Runtime Select) Default: 0 (Master Always Leads)

Range: 40 to 400 hours Default: 168 hours

Range: 2 to 30 minutes Default: 10 minutes

Range: 0 to 60 minutes Default: 0 minutes

Range: 3.0 to 18 F (1.7 to 10.0 C) Default: 4.0 F (2.2 C)

Range: 0 to 150 minutes Default: 0 minutes

0 (Stop If Unit Stops) 1 (Run If Unit Stops) Default: 0 (Stop If Unit Stops)

No (Not in Series) Default: No

Page 30

Fig. 25 — Typical Parallel Master/Slave Chillers

Dedicated Primary Pumping, Variable Flow, Leaving Water Control

CONTROL BOX

SLAVE

CHILLER

CONTROL BOX

MASTER CHILLER

LOAD

CHECK VALVES

CHWS TEMP SENSORS

FIELD WIRING FIELD COMMUNICATION WIRING

SLAVE PUMP

MASTER PUMP

NOTE: This is a simplified wiring diagram. Not all hydronic specialties are shown.

Fig. 26 — Typical Parallel Master/Slave Chillers

Common Primary Pumping, Constant Flow, Leaving Water Control

CHWS TEMP SENSORS

ISOLATION VALVES

CONTROL BOX

SLAVE CHILLER

ISOLATION VALVES

FIELD WIRING FIELD COMMUNICATION WIRING

CONTROL BOX

MASTER CHILLER

LOAD

MASTER PUMP

NOTE: This is a simplified wiring diagram. Not all hydronic specialties are shown.

Page 31

Fig. 27 — Typical Parallel Master/Slave Chillers

Dedicated Primary Pumping, Variable Flow, Entering Water Control

CONTROL BOX

SLAVE CHILLER

CONTROL BOX

MASTER CHILLER

LOAD

CHECK VALVES

FIELD WIRING FIELD COMMUNICATION WIRING

NOTE: This is a simplified wiring diagram. Not all hydronic specialties are shown.

SLAVE PUMP

MASTER PUMP

Fig. 28 — Typical Parallel Master/Slave Chillers

Common Primary Pumping, Variable Flow, Entering Water Control

CONTROL BOX

SLAVE CHILLER

CONTROL BOX

MASTER CHILLER

LOAD

ISOLATION VALVES

FIELD WIRING FIELD COMMUNICATION WIRING

NOTE: This is a simplified wiring diagram. Not all hydronic specialties are shown.

MASTER PUMP

ISOLATION VALVES

Page 32

Table 26 — Master Chiller Configuration in Series Applications

DISPLAY NAME PATH VALUE

Master/Slave Select

Master Control Type

Slave Address

Lead Lag Select

Lead/Lag Balance Delta

Lead/Lag Start Timer

Lead Pulldown Time

Start If Error Higher

Lag Minimum Running Time

Lag Unit Pump Control

Chiller In Series

Main Menu

Configuration Menu Master Slave config

1 (Master) Default: 0 (Disable)

1=Local Control 2=Remote Control 3=CCN Control Default: 1(Local) Configure for proper control type.

Must be set to the Slave Chiller’s address. The Master and Slave chiller must have different addresses and be on the same Bus Number Default: 2

0 (Master Always Leads) 1 (Lag One Failed Only) 2 (Lead/Lag Runtime Select) Default: 0 (Master Always Leads)

Range: 40 to 400 hours Default: 168 hours

Range: 2 to 30 minutes Default: 10 minutes

Range: 0 to 60 minutes Default: 0 minutes

Range: 3.0 to 18 F (1.7 to 10.0 C) Default: 4.0 F (2.2 C)

Range: 0 to 150 minutes Default: 0 minutes

0 (Stop If Unit Stops) 1 (Run If Unit Stops) Default: 0 (Stop If Unit Stops)

Yes (In Series) Default: No

Table 27 — Slave Chiller Configuration in Series Applications

DISPLAY NAME PATH VALUE

Master/Slave Select

Master Control Type

Slave Address

Lead Lag Select

Lead/Lag Balance Delta

Lead/Lag Start Timer

Lead Pulldown Time

Start If Error Higher

Lag Minimum Running Time

Lag Unit Pump Control

Chiller In Series

NOTES:

1. If pump control is configured to OFF (Master), then LAG UNIT (Slave) PUMP SELECT (page 3 of the Master Slave config menu) = 1. If pump control is set to any other value, then LAG UNIT (Slave) PUMP SELECT = 0. This configuration must be set consistently for both master and slave chillers.

2. For Master/Slave Series Chiller Application, Master Chiller should always be downstream of Slave.

Main Menu

Configuration Menu Master Slave config

2 (Slave) Default: 0 (Disable)

1=Local Control 2=Remote Control 3=CCN Control Default: 1(Local) Configure for proper control type.

Must be set to the Slave Chiller’s address. The master and slave chiller must have different addresses and be on the same Bus Number Default: 2

0 (Master Always Leads) 1 (Lag Once Failed Only) 2 (Lead/Lag Runtime Select) Default: 0 (Master Always Leads)

Range: 40 to 400 hours Default: 168 hours

Range: 2 to 30 minutes Default: 10 minutes

Range: 0 to 60 minutes Default: 0 minutes

Range: 3.0 to 18 F (1.7 to 10.0 C) Default: 4.0 F (2.2 C)

Range: 0 to 150 minutes Default: 0 minutes

0 (Stop If Unit Stops) 1 (Run If Unit Stops) Default: 0 (Stop If Unit Stops)

Yes (In Series) Default: No

Page 33

DUAL CHILLER PUMP CONTROL FOR SERIES

Fig. 29 — Typical Series Master/Slave Chillers

Dedicated Primary Pumping, Constant Flow, Leaving Water Control

CHILLER APPLICATIONS — Pump control for series chiller applications is controlled by the master chiller only. The control of the slave chiller is directed through commands emitted by the master chiller. The slave chiller has no action in master/slave operations. The slave chiller only verifies that CCN communication with the master chiller is present. See the Dual Chiller Sequence of Operation section on page 47. Figure 29 shows a typical pump arrangement for dual chiller series applications.

Ramp Loading — The Ramp Loading function limits the

rate of change of the leaving fluid temperature. The minimum compressor speed is calculated based on saturated condensing temperature and saturated suction temperature. To enable the Ramp Loading sequence:

DISPLAY NAME PATH VALUE Ramp Loading

Enable

Cooling Ramp Loading

Main Menu Configuration Menu  General Configuration

Main Menu Setpoint Table





Yes

Range: 0.2 to 2.0° F/min (0.1 to 1.1° C/min) Default: 1.0° F/min (0.5 °C/min)

Temperature Reset — The temperature reset function

will determine the cooling control point. This control point is the active set point adjusted with the current reset value:

Control Point = Setpoint + Reset

The purpose of this reset value is to decrease the required capacity if it is allowed by unit load operating conditions. When a non-zero temperature reset is applied, the chiller controls to the new control point instead of the set point. The type of temperature reset is configured with the Cooling Reset Select variable. Four types of temperature reset are available:

Outdoor Air Temperature (OAT), Return Water Reset (Delta T), 4-20mA control, and Space Temperature control:

DISPLAY

NAME

Cooling Reset Select

Main Menu Configuration Menu  Reset Configuration

PATH VALUE



0 = None 1 = OAT 2 = Delta T 3 = 4-20 mA Control 4 = Space Temp

Under normal operation, the chiller will maintain a constant entering or leaving fluid temperature, based on the configuration, approximately equal to the chilled fluid set point. As the evaporator load varies, the evaporator fluid temperature difference will change in proportion to the load. For example, if the chiller was selected for an entering to leaving water temperature difference of 10° F (5.5° C) at full load, at 50% load the temperature difference would be 5° F (2.2° C). See Fig. 30. Because the change in temperature through the evaporator is a measure of the building load, the temperature difference reset is the average building load. Usually the chiller size and fluid temperature set point are selected based on a full load condition. At part load, the fluid temperature set point may be lower than required. When the fluid temperature is allowed to increase at part load, the efficiency of the machine will increase. The chiller can also be set for return water temperature control. See Fig. 31.

Other indirect means of estimating building load and controlling temperature reset are also available and are discussed below.

To verify that reset is functioning correctly, subtract the Current Setpoint (Main Menu  General Parameters  Current Setpoint) from the Control Point (Main Menu  General Parameters  Control Point) to determine the degrees reset.

BYPASS LOOP

CONTROL BOX

SLAVE CHILLER

MASTER PUMP

FIELD WIRING FIELD COMMUNICATION WIRING

CONTROL BOX

MASTER CHILLER

ISOLATION VALVES

LOAD

NOTE: This is a simplified wiring diagram. Not all hydronic specialties are shown.

Page 34

0010908070605040302010

LOADING (%)

FLUID TEMPERATURE (deg F)

DESIGN RISE (TYPICAL)

LWT

EWT

Fig. 30 — Leaving Chilled Water Temperature Control

a30-4066

Fig. 31 — Return Water Temperature Control Load Profile

a30-4478

EWT

LWT

DESIGN RISE (TYPICAL)

FLUID TEMPERATURE (deg F)

LOADING %

1009080706050403020100

Page 35

OUTSIDE AIR TEMPERATURE RESET — The control

Outdoor Temperature (deg F)

Reset Amount (deg F)

Cooling Reset

Deg. Value

= 15 F (8.3 C)

(cr_deg)

OAT No Reset Value

= 85 F (29.4 C)

(oat_hrno)

OAT Full Reset Value

= 55 F (12.8 C)

(oat_hrfu)

20 40 60 80 100 120 0

a30-5887

Fig. 32 — Example: OAT Temperature Reset

system is capable of temperature reset based on outdoor-air temperature (OAT). Typically as the outdoor temperature decreases so does building cooling load. The chilled water temperature can be increased to lower energy usage while still meeting load demand.

To use Outdoor Air Temperature Reset, four variables must be configured: Cooling Reset Select, OAT No Reset Value (outdoor temperature at which no reset is required), OAT Full Reset Value (outdoor temperature at which full reset is required), and Cooling Reset Deg Value (the amount of temperature reset desired).

To configure this option with the Touch Pilot™ display:

DISPLAY NAME PATH VALUE

Cooling Reset Select

0=None, 1=OAT 2=Delta T, 3=4-20mA control 4=Space Temp

OAT No Reset Value

OAT Full Reset Value

Cooling Reset Deg. Value

Main Menu Configuration Menu  Reset Configuration



Low = 0° F (0° C) Default = 0° F (0° C) High = 4 F (2.2 C)

Low = 14 F (7.8 C) Default = 14 F (7.8 C) High = 125 F (69.4 C)

Low = 30 F (16.7 C) Default = 0° F (0° C) High = 30 F (16.6 C)

In the example in Fig. 32, the outdoor air temperature reset provides 0° F (0° C) chilled water set point reset at 85 F (29.4 C) outdoor-air temperature and 15° F (8.3° C) reset at 55 F (12.8 C) outdoor-air temperature.

Page 36

DELTA T RESET (RETURN WATER RESET) — The

ENTERING-LEAVING WATER TEMPERATURE (deg F)

DEGREES RESET (deg F)

Cooling

Reset

Deg. Value

(cr_deg)

Delta T No Reset Temp

(dt_hr_no)

Delta T Full Reset Temp

(dt_hr_fu)

2 4

6 8

a30-5886

Fig. 33 — Example: Return Water Reset

control system is also capable of performing fluid temperature reset based on evaporator fluid temperature difference (Delta T), sometimes called return water reset. Because the change in temperature through the evaporator is a measure of the building load, the temperature difference reset is, in effect, an average building load reset method.

Delta T Reset allows for the chilled water temperature set point to be reset upward as a function of the fluid temperature difference (building load).

NOTE: Delta T (Return Water) Temperature Reset should not be used with variable evaporator flow rate systems.

To use Delta T Reset, four variables must be configured: Cooling Reset Select, Delta T No Reset Value (evaporator temperature difference at which no chilled water temperature reset should occur), Delta T Full Reset Value (evaporator temperature difference at which the maximum chilled water temperature reset should occur), and Cooling Reset Deg Value (the maximum amount of temperature reset desired).

To configure this option with the Touch Pilot

DISPLAY

NAME

Cooling Reset Select

0=None, 1=OAT 2=Delta T, 3=4-20mA control 4=Space Temp

Delta T No Reset Temp

Delta T Full Reset Temp

Cooling Reset Deg Value

Main Menu Configuration Menu Reset Configuration

PATH VALUE



™

display:

Low = 0° F (0° C) Default = 0° F (0° C) High = 4 F (2.2 C)

Low = 0° F (0° C) Default = 0° F (0° C) High = 25 F (13.8 C)

Low = 30 F (16.7 C) Default = 0° F (0° C) High = 30 F (16.6 C)

In the example in Fig. 33 using Return Water Temperature Reset, the chilled water temperature will be reset by 5° F (2.8° C) when the Fluid Temperature Difference is 2° F (1.1° C) and 0° F (0° C) reset when the Temperature Difference is 10° F (5.6° C).

Page 37

4-20 mA TEMPERATURE RESET — The control system is

0101420

mA Signal

Degrees Reset (deg F)

Cooling Reset

Deg. Value

(cr_deg)

Current No Reset Value

(v_hr_no)

Current Full Reset Value

(v_hr_fu)

46 8

12 16 18

a30-5885

Fig. 34 — Example: 4 to 20 mA Temperature Reset

also capable of temperature reset based on an externally powered 4 to 20 mA signal. The Energy Management Module (EMM) is required for temperature reset using a 4 to 20 mA signal.

To use 4-20 mA Temperature Reset, four variables must be configured: Cooling Reset Select, Current No Reset Value (milliamp signal at which no temperature reset is required), Current Full Reset Value (milliamp signal at which full temperature reset is required), and Cooling Reset Deg Value (the maximum amount of temperature reset desired).

CAUTION

Care should be taken when interfacing with other control systems due to possible power supply differences such as a full wave bridge versus a half wave rectification. Connection of control devices with different power supplies may result in permanent damage. Touch Pilot controls incorporate power supplies with half wave rectification. A signal isolation device should be utilized if the signal generator incorporates a full wave bridge rectifier.

To configure this option with the Touch Pilot™ display:

DISPLAY NAME PATH VALUE

Cooling Reset Select

0=None, 1=OAT 2=Delta T, 3=4-20mA control 4=Space Temp

Current No Reset Value

Current Full Reset Value

Cooling Reset Deg Value

Main Menu Configuration Menu Reset Configuration



Low = 0° F (0° C) Default = 0° F (0° C) High = 4 F (2.2 C)

Low = 0° F (0° C) Default = 0° F (0° C)) High = 20 F (11.1 C)

Low = 0° F (0° C) Default = 0° F (0° C) High = 20 F (11.1 C)

Low = 30 F (16.7 C) Default = 0° F (0° C) High = 30 F (16.6 C)

In the example in Fig. 34, at 4 mA no reset takes place and

at 20 mA, 5° F (2.8° C) chilled water set point reset is required.

Page 38

SPACE TEMPERATURE RESET — The control system is

60 65 70 75 80

Space Temperature (deg F)

Degrees Reset (deg F)

Cooling Reset

Deg. Value

(cr_deg)

Space T Full Reset Value

(spahr_fu)

Space T No Reset Value

(spahr_no)

a30-5884

Fig. 35 — Example: Space Temperature Reset

also capable of temperature reset based on space temperature. The energy management module (EMM) and accessory sensor (P/N 33ZCT55SPT) are required for temperature reset using space temperature. This sensor measures the space (room) temperature for the purpose of set point reset. Only units with the optional energy management module are fitted with this sensor.

To use Space Temperature Reset, four variables must be configured: Cooling Reset Select, Space T No Reset Value (space temperature at which no temperature reset is required), Space T Full Reset Value (space temperature at which full temperature reset is required), and Cooling Reset Deg Value (the maximum amount of temperature reset desired).

To configure this option with the Touch Pilot display:

DISPLAY NAME PATH VALUE

Cooling Reset Select

0=None, 1=OAT 2=Delta T, 3=4-20mA control 4=Space Temp

Space T No Reset Value

Space T Full Reset Value

Cooling Reset Deg Value

Main Menu Configuration Menu Reset Configuration



Low = 0° F (0° C) Default = 0° F (0° C) High = 4 F (2.2 C)

Low = 14 F (7.8 C) Default = 14 F (7.8 C) High = 125 F (69.4 C)

Low = 30 F (16.7 C) Default = 0° F (0° C) High = 30 F (16.6 C)

In the space temperature reset example in Fig. 35, a reset of 6° F (3.3° C) is applied when the space temperature is 68 F (20.0 C) and no reset takes place when the space temperature is 72 F (22.2 C).

Demand Limit — There are three types of demand limit-

ing that can be configured. The first type is through switch control, which will reduce the maximum capacity to up to 3 userconfigurable percentages. The second type is by 4 to 20 mA signal input which will reduce the maximum capacity linearly between 100% at a 4 mA input signal (no reduction) down to

the user-configurable level at a 20 mA input signal. The third type uses the CCN Loadshed module and has the ability to limit the current operating capacity to maximum and further reduce the capacity if required. Demand limit control can be based on a calculated capacity level.

SWITCH CONTROLLED DEMAND LIMIT — The control system is capable of demand limit based on a field-supplied switch for 1-step demand limit or 2 switches for 3-step demand limit. One-step demand limit is standard. The 3-step switch control of demand limiting requires the energy management module (EMM). Demand limit steps are controlled by two relay switch inputs field wired to TB5-5 and TB5-6 for Switch 1 (LIM_SW1) and TB6-14 and TB6-15 for Switch 2 (LIM_SW2).

For demand limit by switch control, closing the first demand limit contact will put the unit on the first demand limit level by capacity. The unit will not exceed the percentage of capacity entered as demand limit switch 1 set point. Closing contacts on the second demand limit switch prevents the unit from exceeding the demand limit entered as demand limit switch 2 set point. If both demand limit switch contacts are closed the unit will not exceed the limits set by the switch limit set point 3. See the table below.

CONTACT

LIM_SW1 Open Close Open Close LIM_SW2 Open Open Close Close

NONE LIMIT 1 LIMIT 2 LIMIT 3

ACTIVE DEMAND LIMIT

If the demand limit percentage is set below minimum unit operation, the unit will go into override mode. See Override #91: Demand Limit section on page 42.

To use demand limit, select the type of demand limiting to use by configuring the Demand Limit Select variable (Main Menu  Configuration Menu  General Configuration  Demand Limit Type Select) to Switch. Configure the demand limit set points based on the type selected.

Page 39

Switch Controlled

100

12 14 16 18

mA Demand Limit Signal

% Demand Limit

4 6

8 10

mA for Demand Limit = 100%

(lim_mx)

mA for Demand Limit = 0%

(lim_ze)

a30-5883

Fig. 36 — Example: 4 to 20 mA Demand Limit

— If using 2 or 3-step demand limit control, an energy management module must be installed. Onestep demand limit control does not require the energy management module. To configure demand limit for switch control, three parameters for 1-step switch control must be configured. For 2 or 3-step control, additional set point parameters must be configured. The parameters are: the type of Demand Limit Selection, the setting for Switch Limit Setpoint 1, the setting for Switch Limit Setpoint 2 (if required) and the setting for Switch Limit Setpoint 3 (if required).

To configure this option with the Touch Pilot™ display:

DISPLAY NAME PATH VALUE

Demand Limit Type Select

Switch Limit Setpoint 1

Switch Limit Setpoint 2

Switch Limit Setpoint 3

Main Menu Configuration Menu  General Configuration

Main Menu Setpoint Table



1 (Switch) Low = 0 Default = 0 (None) High = 4

Low = 0% Default = 100% High = 100%

Low = 0% Default = 100% High = 100% (Not required for 1-Step Control)

Low = 0% Default = 100% High = 100% (Not required for 1 or 2-Step Control)

In the following example, 2-step demand limit based on capacity is desired with the first switch closure limiting the capacity to 60%. The second switch closure is to limit the capacity to 40%. Demand Limit Switch 1 is 60% and Demand Limit Switch 2 is 40%. Since no third-step demand limit is required, Switch Limit Setpoint 3 is set at 0%.

DISPLAY NAME VALUE Demand Limit Type Select 1 Switch Limit Setpoint 1 60% Switch Limit Setpoint 2 40% Switch Limit Setpoint 3 0%

EXTERNALLY POWERED (4 to 20 mA) DEMAND LIMIT — The energy management module is required for 4 to 20 mA demand limit control. An externally powered 4 to 20 mA signal must be connected to TB6-1 and TB6-2. Typically the 4 to 20mA signal is provided by an active outdoor sensor connected to this input. This signal is read by a transducer type (0 to 5 vdc) on the EMM board via a field-installed 0.5 W 250-ohm resistor.

CAUTION

Externally Powered (4 to 20 mA) Current Based Demand Limit — To configure demand limit for 4 to 20 mA control based on unit capacity, one parameter must be configured. The parameter is Demand Limit Type Select. The value of the capacity limit will vary linearly for 0% to 100% based on the input signal where 4 mA is 100% and 20 mA is 0% of total unit capacity.

To configure this option with the Touch Pilot display:

DISPLAY NAME PATH VALUE

Demand Limit Type Select

Main Menu Configuration Menu  General Configuration

In the example in Fig. 36, a 4 mA signal is Demand Limit 100% and a 20 mA Demand Limit signal is 0%. The 4 to 20 mA signal is connected to TB6-1 and TB6-2. The demand limit is a linear interpolation between the two values entered. If the machine receives a 12 mA signal, the machine controls will limit the capacity to 50%.



2 (4-20mA Control) (Default = 0 [None])

Page 40

CCN LOADSHED CONTROLLED DEMAND LIMIT — To

DESCRIPTION STATUS POINT

Alarm Routing 0 0 0 0 0 0 0 0 ALRM_CNT

ComfortVIEW™ or ComfortWORKS™

TeLink

Unused

BACLink or DataLINK™

Unused

Fig. 37 — Alarm Routing Control

configure Demand Limit for CCN Loadshed control, the unit Operating Type Control must be in CCN control. With the Touch Pilot™ display, the machine must be started in Network Mode. Network control can be executed from the GENUNIT table.

The unit must be controlled by a Chillervisor module. The Chillervisor module can force the demand limit variable and directly control the capacity of the machine. Additionally, the unit’s set point will be artificially lowered to force the chiller to load to the demand limit value.

Ice Storage Operation — Chiller operation can be

configured to make and store ice. The energy management module and an Ice Done Switch are required for operation in the Ice Mode. In this configuration, the machine can operate with up to three cooling set points: Cooling Setpoint 1 is used during the Occupied period, Cooling Setpoint 2 is used during the Unoccupied period when the ice build is complete (Ice Done Switch is closed), and Cooling Ice Setpoint is used during the unoccupied period while ice is building (Ice Done Switch is open). Refer to the 30XV Typical Field Wiring Schematic figure on page 117 for Ice Done Switch wiring.

To configure this option with the Touch Pilot™ display:

DISPLAY NAME PATH VALUE

Ice Mode Enable

Cooling Ice Setpoint

Broadcast Configuration — The 30XV chiller with

Greenspeed

Main Menu Configuration Menu General Configuration

Main Menu Setpoint Table

intelligence is capable of broadcasting outside-air temperature (OAT), time, date, and holiday status to all elements in the CCN system. In the stand-alone mode, broadcast must be activated to utilize holiday schedules and adjust for daylight saving time. If the chiller is to be connected to a CCN system, determine which system element is to be the network broadcaster and activate broadcast in all other system elements. Broadcast is activated and deactivated in the Touch Pilot Broadcast Menu (Main Menu  Configuration Menu  Broadcast Menu Brocasts).

Only one element should be configured as a broadcaster. If a broadcast is activated by a device that has been designated as a network broadcaster, then broadcast time, date, and holiday status will be updated over the CCN system. If broadcast is enabled, a broadcast acknowledger must also be enabled. The acknowledger cannot be the same machine as the broadcasting machine.

ACTIVATE — The Activate variable enables the broadcast function of the Touch Pilot controls. If this variable is set to 0, this function is not used and holiday schedules and daylight savings compensation are not possible. Setting this variable to 1 allows the machine to broadcast and receive broadcasts on the network. The following information is broadcast: the time



Radio button (YES/NO) Default = No

Low = –20 F (–29 C) Default = 44 F (6.7 C) High = 78.8 F (26 C)

with compensation for daylight savings, date, holiday flag, and the outdoor-air temperature.

Set this variable to 2 for stand-alone OAT broadcast. With this configuration, daylight saving time and holiday determination will be done without broadcasting through the bus.

To configure this option with the Touch Pilot

DISPLAY

NAME

Activate

Main Menu Configuration Menu  Broadcast Menu  Brocasts

PATH VALUE



0 = Disabled 1 = Broadcast time, date, holiday flag, and OAT 2 = OAT broadcast only (Daylight savings time and holiday determination will be done without broadcasting through the bus)

™

display:

OAT BROADCAST — To enable the outside air temperature (OAT) broadcast, the unit broadcasting the temperature must be configured with its own CCN Bus and CCN Address. Leaving the parameters at the factory default of 0 for the CCN Bus and CCN Address disables the OAT Broadcast function. Once configured, the first broadcast of OAT will be within 5 minutes.

To configure this option with the Touch Pilot display:

DISPLAY NAME PATH VALUE Activate OAT Broadcast Bus #

Element #

Main Menu Configuration Menu  Broadcast Menu  Brocasts



Range = 0 to 2 Default = 2

Range = 0 to 239 Default = 0

BROADCAST ACKNOWLEDGER — This configuration defines if the chiller will be used to acknowledge broadcast messages on the CCN bus. One broadcast acknowledger is required per bus, including secondary buses created by the use of a bridge. The broadcast acknowledger must be configured through the Network Service Tool.

Alarm Control

ALARM ROUTING CONTROL — Alarms recorded on the chiller can be routed through the CCN. To configure this option, the Touch Pilot controls must be configured to determine which CCN elements will receive and process alarms. Input for the decision consists of eight digits, each of which can be set to either 0 or 1. Setting a digit to 1 specifies that alarms will be sent to the system element that corresponds to that digit. Setting all digits to 0 disables alarm processing. The factory default is 00000000. See Fig. 37. The default setting is based on the assumption that the unit will not be connected to a network. If the network does not contain a ComfortVIEW™, ComfortWORKS abling this feature will only add unnecessary activity to the CCN communication bus.

™

, TeLink, DataLINK™, or BACLink module, en-

Page 41

Typical configuration of the Alarm Routing variable is

11010000. This Alarm Routing status will transmit alarms to ComfortVIEW

™

software, TeLink, BACLink, and DataLINK.

This option cannot be configured with the Touch Pilot display. To change the alarm control routing through the Network Service Tool, navigate to point ALRM_CNT in table ALARMDEF.

ALARM EQUIPMENT PRIORITY — The ComfortVIEW software uses the equipment priority value when sorting alarms by level. The purpose of the equipment priority value is to determine the order in which to sort alarms that have the same level. A priority of 0 is the highest and would appear first when sorted. A priority of 7 would appear last when sorted. For example, if two chillers send out identical alarms, the chiller with the higher priority would be listed first. The default is 4. This variable can only be changed when using the ComfortVIEW software, or Network Service Tool. This variable cannot be changed with the Touch Pilot display. To configure this option with the Network Service Tool, navigate to point EQ-_TYP in table ALARMDEF.

COMMUNICATION FAILURE RETRY TIME — This variable specifies the amount of time that will be allowed to elapse between alarm retries. Retries occur when an alarm is not acknowledged by a network alarm acknowledger, which may use either ComfortVIEW software or TeLink. If acknowledgment is not received, the alarm will be re-transmitted after the number of minutes specified in this decision. This variable can only be changed when using the ComfortVIEW software, or Network Service Tool. This variable cannot be changed with the Touch Pilot display. To configure this option with the Network Service Tool, navigate to point RET-Y_TM in table ALARMDEF.

RE-ALARM TIME — This variable specifies the amount of time that will be allowed to elapse between re-alarms. A realarm occurs when the conditions that caused the initial alarm continue to persist for the number of minutes specified in this decision. Re-alarming will continue to occur at the specified interval until the condition causing the alarm is corrected. This variable can only be changed when using the ComfortVIEW software, or Network Service Tool. This variable cannot be changed with the Touch Pilot display. To configure this option with the Network Service Tool, navigate to point RE-_LARM in table ALARMDEF.

ALARM SYSTEM NAME — This variable specifies the system element name that will appear in the alarms generated by the unit control. The name can be up to 8 alphanumeric characters in length. This variable can only be changed when using the ComfortVIEW™ software or Network Service Tool. This variable cannot be changed with the Touch Pilot display. To configure this option with the Network Service Tool, navigate to point ALRM_NAM in table ALARMDEF.

Daylight Savings Time Configuration — The

30XV chiller with Greenspeed

intelligence control contains software which can automatically correct for daylight saving time. This software is accessible from the Touch Pilot™ display, ComfortVIEW software, or Network Service Tool.

To enable this feature, Daylight Saving Select must be set to

1. The start of daylight saving must be configured by setting the Month, Day of Week, and Week of Month. The end for Daylight Saving must also be configured. To configure this option with the Touch Pilot display, see Table 28.

Table 28 — Daylight Saving Time Configuration

DISPLAY NAME PATH VALUE Activate Daylight

Savings Select Entering

Month

Day of Week (1=Monday)

Week of Month

Leaving

Month

Day of Week (1=Monday)

Week of Month

Main Menu Configuration Menu  Broadcast Menu  Brocasts



1 or 2 Default = 2

Enable Default = Dsble

Enter Starting Month for Daylight Saving

Enter the Day of the Week Daylight Saving Starts

Enter Week of the Month Daylight Saving Starts

Enter Ending Month for Daylight Saving

Enter the Day of the Week Daylight Saving ends

Enter Week of the Month Daylight Saving ends

Capacity Control Overrides — The following ca-

pacity control overrides (Main Menu  Maintenance Menu  Capacity Control  Override Capacity A, B) will modify the normal operation routine. If any of the override conditions listed below is satisfied, the override will determine the capacity change instead of the normal control. Overrides are listed by priority order and are often linked to unit operating modes. See Table 29 for a list of capacity control overrides. See the Operating Modes section on page 48 for more information regarding operating modes.

Override #2: Low Suction Pressure vated when the EXV is not in DSH mode and the suction saturation temperature (SST) goes below 13.25 F (–10.4 C) for water or below (13.25 – (34 – Brine Freeze Setpoint)) for units configured with brine. The controller at this point starts to unload the unit until the SST exceeds 34 F (1.1 C).

Override #6: EWT < Control Point compressors without alarms.

Override #7: Ramp Loading made if the unit is configured for ramp loading and the rate of change of the leaving water is greater than Ramp Loading Rate.

Override #9: Demand Limit when a command to limit the capacity is received and the capacity meets or exceeds the demand limit value. If the current unit capacity is greater than the active capacity limit value, the unit unloads per unloading scheme. The current capacity will stop increasing when it reaches the capacity limit value minus 3%.

Override #10: Flow Switch is Open its compressor operation until the Evaporator flow switch is closed.

Override #11: Customer Interlock is Closed prohibits compressor operation until the customer interlock is opened.

Override #12: Flow Available Delay hibits chiller operation until flow has started.

— This override is acti-

—This override stops the

— No capacity increase will be

— This override mode is active

— This override prohib-

— This override

— This override pro-

Page 42

Override #14: Low LWT (Leaving Water Temperature

) — This override stops the compressors if LWT < freeze + freeze_ov (freeze = Main Menu  Configuration Menu  Service Parameters  Brine Freeze Setpoint; freeze_ov = Main Menu  Configuration Menu  Service Parameters  Freeze Override Offset). The goal is to stop the unit without having an alarm if the LWT goes too low so that the unit can start automatically without the need to reset alarm. For example, freeze is 34 F (1.1 C); the user can decide to add a threshold to force the compressors to stop immediately without alarm at 35 F (1.7 C).

Override #15: Compressor Disabled

— This override is shown when either of the compressors are disabled through Main Menu  Configuration Menu  Compressor Enable menu.

Override #16: High Discharge Pressure

— This override attempts to avoid a high pressure failure. If the saturated condensing temperature for the circuit is above the high pressure threshold the compressor is unloaded while the fan is run at maximum frequency.

Override #23: Low SP (Suction Pressure)

— When the unit is configured with evaporator fluid as water (Main Menu  Configuration Menu  Service Parameters  Evaporator Fluid Type), this override gets activated at suction pressure (SP) < 27.7 psig (191 kPa) minus 5 psig (34.5 kPa). In this mode the circuit will not be allowed to load further until the SST goes above 30 F (

–1.1 C). When the unit is configured

with evaporator fluid as brine (Main Menu  Configuration Menu  Service Parameters  Evaporator Fluid Type), this override gets activated at suction pressure (SP) < Brine Freeze Setpoint (converted to psig) (Main Menu  Configuration Menu  Service Parameters  Brine Freeze Setpoint) minus 5 psig (34.5 kPa).

Override #34: Low SST (Saturated Suction Temperature

) — The compressor is not allowed to start if the SST is lower than –13 F (–25 C).

Override #53: ON OFF Delay

— This override is activated when the unit is in off state (manually stopped or because of alarm shutdown) and is requested to start through Local On, Remote On, CCN On or after alarm shutdown reset.

Override #56: Isolation Valve Opening Delay

— This override mode is activated when the actuated ball valves (if equipped) on the discharge lines are opening (approximately 2-minute delay).

Override #59: Low Oil Level

— This override is only effective when the circuit is not running. The override will prevent the circuit from starting up with a low oil level.

Override #62: High Compressor Motor Temperature

— This override prevents the compressor motor temperature from rising above the high temperature limit, but still allows the chiller to run close to the high temperature limit by unloading the compressor. If the motor temperature is greater than 195.8 F (91 C), the compressor will not load. This override will control the loading to the compressor to maintain a maximum motor temperature of 194 F (90 C). The circuit will come out of this mode if the motor temperature falls below 190.4 F (88 C) or if motor temperature is below

195.8 F (91 C) and water temperature is established. Override #66: High Discharge Gas Temperature

(DGT) — This override avoids high DGT tripout by either increasing compressor capacity or decreasing the capacity and stopping the compressor depending on the conditions. The increase in capacity happens when the DGT > 201 F (93.9 C) to lower DGT. The control seeks to control the DGT at 190 F and if the DGT goes below 186.4 F (85.8 C) the unit goes to normal control. The decrease in capacity followed by unit stop happens if Override 66 is activated and evaporator leaving water temperature is close to the freeze point or lower than the control point. The compressor restarts if

the DGT goes below 186.4 F (85.8 C) and more than 5 minutes have passed. This override has priority over almost every other one (including the Demand Limit override).

Override #67: DGT off Protection (Discharge Gas Temperature) — This override is activated before the unit starts and prevents the unit from starting if the DGT is still greater than DGT activation point or if 5 minutes has not passed since the last high DGT shutdown.

Override #77: Oil Pressure at Start

— This override is activated when the unit has just started passed the start timer and OP<(SP+19.5) AND OP<(0.7*(DP-SP)+SP).

In this override the unit freezes the compressor loading and waits until the oil pressure exceeds the above conditions and then exits to normal mode of operation.

Override #91: Demand Limit

— This override is activated when the demand limit is set lower than the minimum possible unit capacity. The unit shuts down and/or is on hold until the demand limit is changed to higher than the minimum unit capacity.

Table 29 — Capacity Control Overrides

NO. DESCRIPTION

0 Normal Operation 2 Low Suction Pressure 6 EWT < control point 7 Ramp Loading

9 Demand Limit Reached 10 Flow switch is open 11 Customer Interlock is closed 12 Flow Available Delay 14 Low LWT 15 Compressor Disabled 16 High Discharge Pressure 23 Low SP 34 Low SST 53 ON OFF Delay 56 Evaporator Heater Isolation Valve Opening Delay 59 Low Oil Level 62 High Compressor Motor Temperature 66 High Discharge Gas Temperature 67 DGT Off Protection 77 Oil Pressure at Start 91 Demand Limit

Head Pressure Control (Variable Speed Fans) — The head pressure is controlled through the Touch

Pilot display by adjusting fan speed through variable speed drive(s). The command sent to the drive is at a frequency to maintain the lowest condensing temperature possible, and thus, the highest unit efficiency. The frequency command sent is based on a function of compressor capacity, OAT, and leaving fluid temperature. If the capacity is stable and no overrides have occurred recently, an algorithm attempts to optimize fan frequency based on total power feedback. The optimization control can be turned on and off through the Network Service Tool (Service  Fan_CFG  Optimization Enable On, Off [xt_enable]). By default the xt_enable variable is “On” which means the optimization control is active. It can be set to “Off” to deactivate the optimization. The frequency adjustment during optimization control can be adjusted through the variable os_d_amp (Service  Fan_CFG  Opt Disturbance Ampl. (Hz) [os_d_amp]). By default os_d_amp is 5 Hz and can be lowered to 3 Hz if the unit load demand is very steady. Lowering the frequency below 3 Hz is not recommended and could cause head pressure control instability, causing load and power draw oscillations. All the other optimization parameters in table (Service  Fan_CFG) are not recommended for change, however are explained briefly. The Stability Sample

Page 43

Nb is the number of samples the controller uses to determine if unit is stable. One sample is taken per second. Optimization Deviation Tolerance is the percentage change in the capacity which will trigger the controls to get out of optimization and reoptimize. The Optimization Disturbance Period is the time it waits after fan frequency adjustment to determine if the unit is optimized or needs further iteration. Optimization Freeze Power Tolerance is the Power delta tolerance to determine if the optimum is met or not. If power change is lower than that with fan frequency change then it is considered as an optimal point. The Optimization filter time is the filter time of the fan power to eliminate power measurement noise.

Fan control continuously monitors all inputs and outputs and the transitions between the modes are defined based on continuous measurements of 2 inputs (Discharge Pressure and Discharge Gas Temperature). Fan modes of operation include the following:

• STANDARD: Normal mode of operation before using

the optimum-seeking algorithm.

• WAITOPT, OPTIMZE: Trying to optimize the fan fre-

quency during the optimum-seeking algorithm.

• FREEZE: Fan frequencies are frozen after completion of

the optimum-seeking algorithm cycle. The fan control

remains in this mode until the LWT, the compressor load,

or the outdoor temperature changes by a defined amount.

If the change conditions are met the fan control goes

back to the WAITOPT mode followed by the OPTIMZE

modes.

• DGT: High Discharge Gas Temperature mode. The VFD

increases the speed of the fan to reduce DGT.

• DP_HIGH, DP_LOW: High Discharge Pressure Mode,

Low Discharge Pressure Mode: The VFD controls the

speed of the fan to bring SCT into normal operating

range.

• OFF: Fans are not running.

• START: Start mode. The frequency of the fans is defined

based on the OAT.

Head Pressure Control (Fixed Speed Fans) — The head pressure is controlled through the

Touch Pilot display by adjusting the number of fans running. The controller determines the minimum number of fans required to support unit operation so the unit can run at the most efficient point. At start up the number of fans on is calculated using OAT. After 60 seconds, an equation is used to determine the number of fan required based on OAT, EWT, and circuit capacity.

There are additional modes used for fixed speed fans: DP High — Mode decreases the discharge pressure as fast

as possible to prevent high pressure trips. This mode turns on all fans.

DP High Discharge Pressure — Mode avoids high discharge pressure that would cause the compressor to run outside of the compressor envelope. In this mode, the pressure is controlled to a Discharge Pressure set point.

DGT High — Mode decreases the discharge temperature as fast a possible to prevent high DGT alarms. This mode turns on all fans.

PRE-START-UP

IMPORTANT: Complete the Start-Up Checklist for 30XV Liquid Chillers at the end of this publication.

The checklist assures proper start-up of a unit, and provides a record of unit condition, application requirements, system information, and operation at initial start-up.

Do not attempt to start the chiller until the following checks

have been completed.

System Check

1. Check that auxiliary components, such as the chilled fluid circulating pump, air-handling equipment, or other equipment to which the chiller supplies liquid are operational. Consult manufacturer’s instructions. If the unit has field-installed accessories, be sure all are properly installed and wired correctly. Refer to unit wiring diagrams.

2. Open compressor suction service valves (if equipped).

3. Open discharge line, liquid line, oil line, and economizer (if equipped) service valves.

4. Fill the chiller fluid circuit with clean water (with recommended inhibitor added) or other non-corrosive fluid to be cooled. Bleed all air out of high points of system. If outdoor temperatures are expected to be below 32 F (0° C), sufficient inhibited propylene glycol or other suitable corrosion inhibited antifreeze should be added to the chiller water circuit to prevent possible freeze-up.

The chilled water loop must be cleaned before the unit is connected. It is recommended that the chiller pumps be equipped with a start-up filter screen to remove particulates from the loop. The start-up filter should be replaced after 24 hours of operation

5. Check tightness of all electrical connections.

6. Electrical power source must agree with unit nameplate.

7. Oil separator heaters must be energized for 24 hours prior to start-up.

START-UP

Actual Start-Up —

under supervision of a qualified refrigeration technician.

1. Be sure all oil, suction valves, discharge valves (if equipped) and liquid line service valves are open.

2. Using the Touch Pilot control, set leaving-fluid set point (Main Menu  Setpoint Table  Cooling Setpoint 1). No cooling range adjustment is necessary.

3. If optional control functions or accessories are being used, the unit must be properly configured. Refer to Configuration Options section for details.

4. Start the chilled fluid pump, if unit is not configured for pump control (Main Menu  Configuration Menu  Pump Configuration Evaporator Pumps Sequence = 0).

5. Complete the Start-Up Checklist to verify all components are operating properly.

6. Press the Start/Stop button located in the upper right corner of the Touch Pilot display and then select Local On.

7. Allow unit to operate and confirm that everything is functioning properly. After unit operation stabilizes, check to see that leaving set-point Control Point (Main Menu  Setpoint Table  Cooling Setpoint 1) agrees with leaving fluid temperature (Main Menu  Temperatures  Evap Leaving Fluid).

Actual start-up should be done only

Page 44

Operating Limitations

TEMPERATURES — Unit operating temperature limits are listed in the table below.

TEMPERATURE F C Maximum Ambient Temperature 125 52 Minimum Ambient Temperature* 32 0 Maximum Evaporator EWT† 95 35 Maximum Evaporator LWT 60 15 Minimum Evaporator LWT 38** 3.3

LEGEND

EWT — Entering Fluid (Water) Temperature LWT — Leaving Fluid (Water) Temperature

* Lowest allowable ambient temperature for the standard unit to start and operate is 32 F (0° C). With the inclusion of wind baffles and variable speed fans (field fabricated and installed), the unit is capable to start as low as 0 F (–17.8 C) and to operate as low as –20 F (–29 C) ambient temperature.

†For sustained operation, EWT should not exceed 70 F (21.1 C). **Unit requires brine fluid for operation below this temperature.

Low Ambient Temperature Operation — If unit operating temperatures below 32 F (0° C) are expected, the following measures are recommended:

• Consider higher loop volumes, 6 to 10 gallons per nomi-

nal ton.

• Loop freeze protection with glycol is strongly recom-

mended to a minimum of 15° F (8.3° C) below lowest anticipated ambient temperature.

• Chilled water pump control is required.

• If wind velocity is expected to be greater than 5 mph

(8 km/h) wind baffles and brackets must be field-fabricated and installed. See the 30XV Installation Instruc-

tions for more information. VOLTAGE Main Power Supply

supply voltages are listed in the Installation Instructions. Unbalanced 3-Phase Supply Voltage

motor where a phase imbalance between phases is greater than 2%.

To determine percent voltage imbalance:

% Voltage Imbalance = 100 x

The maximum voltage deviation is the largest difference between a voltage measurement across 2 legs and the average across all 3 legs.

Example: Supply voltage is 240-3-60.

AB = 243v

BC = 236v

AC = 238v

— Minimum and maximum acceptable

— Never operate a

max voltage deviation from

avg voltage

average voltage

1. Determine average voltage:

Average voltage =

243+236+238

717

= 239

2. Determine maximum deviation from average voltage: (AB) 243 – 239 = 4 v

(BC) 239 – 236 = 3 v (AC) 239 – 238 = 1 v

Maximum deviation is 4 v.

3. Determine percent voltage imbalance:

% Voltage Imbalance = 100 x

239

= 1.7%

This voltage imbalance is satisfactory as it is below the maximum allowable of 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact the local electric utility company immediately. Do not operate unit until imbalance condition is corrected.

MINIMUM FLUID LOOP VOLUME — To obtain proper temperature control, loop fluid volume must be at least 3 gallons per ton (3.25 L per kW) of chiller nominal capacity for air conditioning and at least 6 gallons per ton (6.5 L per kW) for process applications or systems that must operate at low ambient temperatures (below 32 F [0° C]). Refer to application information in Product Data literature for details.

FLOW RATE REQUIREMENTS — Standard chillers should be applied with nominal flow rates within those listed in the Minimum and Maximum Evaporator Flow Rates table. Higher or lower flow rates are permissible to obtain lower or higher temperature rises. Minimum flow rates must be exceeded to assure turbulent flow and proper heat transfer in the evaporator. See Table 30. See Fig. 38 and 39 for evaporator pressure drop curves.

CAUTION

Operation below minimum flow rate could generate alarms, which could result in damage to the evaporator.

Consult application data section in the Product Data literature and job design requirements to determine flow rate requirements for a particular installation.

Page 45

Table 30 — 30XV Minimum and Maximum Evaporator Flow Rates

ITEM MINIMUM MAXIMUM NORMAL

Evaporator Leaving Water Temperature* 40 F (4.4 C) 60 F (15 C) —

Evaporator Entering Water Temperature† 45 F (7.2 C) 70 F (21.1 C) —

30XV Unit Size Tier Evaporator

Std

140

High

Std

160

180

200

225

250

275

300

325

*For applications requiring evaporator leaving water temperature operation at less than 40 F (4.4 C), the units require the use of antifreeze. Contact your local Carrier representative for more information. †For applications requiring evaporator entering water temperature operation at less than 45 F (7.2 C), contact your local Carrier representative for unit selection using the Carrier electronic catalog.

Mid

High

Std Mid

High

Std Mid

High

Std Mid

High

Std Mid

High

Std Mid

High

Std Mid

High

Std

High

Standard 2 170.4 10.8 681.6 43.0 340.8 21.5Mid

Standard 2 193.2 12.2 772.8 48.8 386.4 24.4

Standard 2 204 12.9 816 51.5 408 25.7

Standard 2 236.4 14.9 945.6 59.7 472.8 29.8

Standard 2 266.4 16.8 1065.6 67.2 532.8 33.6

Standard 2 308.4 19.5 1233.6 77.8 616.8 38.9

Standard 2 327.6 20.7 1310.4 82.7 655.2 41.3

Standard 2 349.2 22.0 1396.8 88.1 698.4 44.1

Standard 2 379.2 23.9 1516.8 95.7 758.4 47.8Mid

Number of

Passes

(See Note 4)

Minimum Flow Rate Maximum Flow Rate Nominal Flow Rate

(gpm) (L/s) (gpm) (L/s) (gpm) (L/s)

NOTES:

1. The 30XV units will start and pull down with loop temperatures up to 95 F (35 C).

2. Nominal flow rates required at AHRI (Air-Conditioning, Heating and Refrigeration Institute) conditions: 44 F (7 C) leaving fluid temperature, 54 F (12 C) entering water temperature, 95 F (35 C) ambient. Fouling factor 0.00010 ft m2-K/kW).

3. To obtain proper temperature control, evaporator loop fluid volume must be at least 3 gal/ton (3.23 L/kW) of chiller nominal capacity for air conditioning and at least 6 gal/ton (6.5 L/kW) for process applications or systems that must operate in low ambient temperatures (below 32 F [0° C]).

4. For One Pass evaporators, apply a multiplier of 2 to the above flow rates.

-hr-F/Btu (0.000018

Page 46

Unit Sizes 30XV140, 160, 180, 200, 225

Fig. 38 — Evaporator Pressure Drop Curves, Standard Pass Flooded Evaporator (30XV140-225)

100

150

200

250

0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00

Pressure drop, kPa

Evaporator Flow Rate, l/s

140 Std Tier

140 Mid, High, & 160 Std Tier

160 Mid, High, & 180 Std Tier

180 Mid, High, & 200 Std Tier

200 Mid, & High Tier

225 Std Tier

225 Mid, & High Tier

Unit Sizes 30XV250, 275, 300, 325

Fig. 39 — Evaporator Pressure Drop Curves, Standard Pass Flooded Evaporator (30XV250-325)

100

150

200

250

0.00 20.00 40.00 60.00 80.00 100.00 120.00

Pressure drop, kPa

Evaporator Flow Rate, l/s

250 Std Tier

250 Mid, High, & 275 Std Tier

275 Mid, High, & 300 Std Tier

300 Mid, High, & 325 Std Tier

325 Mid, & High Tier

Page 47

OPERATION

BASE PLATE

VALVE MOTOR

VALVE MOTOR COVER

Fig. 40 — Typical ABV Assembly with Enclosure

a30-4236

Fig. 41 — Fully Open Ball Valve

with Actuator Removed

a30-4237

Fig. 42 — Ball Valve Motor

a30-4238

Sequence of Operation —

chiller, the evaporator pump will start. After verifying water flow, the control will monitor the entering and leaving water temperature. If the need for mechanical cooling is determined, the control decides which circuit and compressor to start. The control will start the required compressor completely unloaded and de-energize the oil separator heater (if already energized). The control will continue to load this circuit by increasing the VFD frequency to satisfy cooling requirements. Once fully loaded, the control will start the second circuit to satisfy load as required. Shutdown of each circuit under normal conditions occurs in the opposite sequence to loading. Once a circuit is fully unloaded the compressor is shut off and the EXV will close completely.

ACTUATED BALL VALVE (ABV) — For chillers equipped with this option (standard in most regions), either one or two discharge ABVs are located in the discharge line of each circuit of the unit. See Fig. 40 for a typical ABV assembly with enclosure. The ABV is a motorized ball valve, which is used to close the discharge line to prevent refrigerant migrating from condenser to the evaporator when the circuit is off. The valve will be opened before the compressor is started and will normally close when pressure equalizes between suction and discharge lines.

The actuated ball valves are linked to the evaporator heater operation in the controls. Evaporator Heater option (Main Menu

Configuration Menu Factory Parameters Evapo-

rator Heater Installed = yes) must be enabled for the actuated ball valve to operate.

See Fig. 41 for a view of a fully open ball valve with the actuator removed. The flat surface at the top of the valve shaft is parallel to the discharge line. The ball valve motor mounting plate should be perpendicular to the discharge line at all times. If not, adjust it by loosening the set screw on the side of the valve, reposition assembly and tighten set screw.

See Fig. 42 for a view of the ball valve motor mounting with a fully open valve. The motor actuator arm should be at a counterclockwise position, with the valve shaft in a parallel position. If not in a parallel position, loosen the clamping screw and push the disengagement button to rotate the actuator arm until it stops. Retighten the clamping screw.

ABV Manual Operation ally as a discharge service valve by completing the following steps:

1. Remove the actuator cover.

2. With the compressor off hold down the Disengagement (Push) button. See Fig. 42.

3. Close the ABV by turning the shaft adapter by hand or with a wrench so that the flats on the end of the shaft are perpendicular to the discharge line.

4. Release the Push button.

5. Disconnect the control power cable to the ABV.

— The ABV can be operated manu-

With a command to start the

Dual Chiller Sequence of Operation — With a

command to start the chiller, the master chiller determines which chiller will become the lead chiller based on the configuration of Lead Lag Select (lead_sel) and Lead/Lag Balance Delta (ll_bal_d). The lead chiller is always started first and the lag chiller is held at zero percent capacity by the master chiller forcing the lag demand limit value to 0%. If Lead Pulldown Time (lead_pul) has been configured, the lead chiller will continue to operate alone for that specified time. After the Lead Pulldown Time timer has elapsed and when the lead chiller is fully loaded, either all available compression is on or at the master demand limit value, then the lag start timer (lstr_tim) is initiated.

VALVE SHAFT

ACTUATOR ARM

MOUNTING - FULLY CLOSED

CLAMPING SCREW

MOUNTING - FULLY OPEN

DISENGAGEMENT BUTTON

Page 48

When the pulldown time and lag start time have elapsed and the Combined Leaving Chilled Water Temperature is more than 3° F (1.7° C) above the set point, then the lag chiller is started. If the lag chiller’s water pump was not started when the machines went into occupied mode, the lag chiller water pump will be started. The lag chiller will start with the master chiller forcing the lag chiller demand limit value (LAG_LIM) to the master’s demand limit value. If lead/lag capacity balance is selected, once the lag chiller has started, the master will try to keep the difference in capacity between lead and lag less than 20%. The master will then be responsible for water loop capacity calculation, and will determine which chiller, the lead or lag, will increase or decrease capacity. When the load reduces, the lag chiller will be the first chiller to unload. To accomplish this, the lead chiller set point is decreased by 4° F (–2.2° C) until the lag chiller unloads.

PUMP OPERATION — For parallel chiller pump operation, the lead chiller’s water pump will be started. The lag chiller’s water pump will be maintained off if Lag Unit Pump Control = 0 (Main Menu  Configuration Menu  Master Slave config Lag Unit Pump Control). The internal algorithm of the lead chiller will control capacity of the lead chiller.

Operating Modes — Operating modes are override

modes that affect normal operation of the equipment. More than one operating mode can be in effect at the same time. Some operating modes have corresponding capacity control overrides (see the Capacity Control Overrides section on page 41).

For the Touch Pilot™ display, the status of the operating modes can be found by accessing the Modes Menu (Main Menu  Modes). Each operating mode and its status (Yes = active, No = inactive) is listed.

See Table 31 for a list of operating modes.

Table 31 — 30XV with Greenspeed

Operating Modes

OPERATING

MODE NUMBER

1 Startup Delay in Effect Yes/No 2 Second Setpoint in Use Yes/No 3 Reset in Effect Yes/No 4 Demand Limit Active Yes/No 5 Evaporator Pump Rotation Yes/No 6 Pump Periodic Start Yes/No 8 Master Slave Active Yes/No

12 Ice Mode in Effect Yes/No

DESCRIPTION STATUS

STARTUP DELAY IN EFFECT — This mode is checked for when the unit is started. This mode is active when the Minutes Off Time (Main Menu  Configuration Menu  General Configuration  Unit Off to On Delay) timer is active. The unit will not start until the timer has expired. The mode will terminate when the timer expires.

SECOND SETPOINT IN USE — This mode is checked for when the unit is ON. The mode is active when Cooling Setpoint 2 (Main Menu  Setpoint Table  Cooling Setpoint 2) or Cooling Ice Setpoint (Main Menu  Setpoint Table  Cooling Ice Setpoint) is in use. While in this mode, the Current Setpoint (Main Menu  General Parameters  Current Setpoint) will show the Cooling Setpoint 2 or Cooling Ice Setpoint value.

While in this mode the unit will operate to the Cooling Setpoint 2 or Cooling Ice Setpoint. The mode will terminate when the second setpoint is no longer in use.

RESET IN EFFECT — This mode is checked for when the unit is ON. The mode will be active when Cooling Reset Select (Main Menu  Configuration Menu Reset Configuration  Cooling Reset Select ) is enabled by setting the

Intelligence

value to 1 = Outside Air Temperature, 2 = Fluid Delta T, 3 = 4-20 mA Input, 4 = Space Temperature) and reset is active.

While in this mode, the Current Setpoint (Main Menu  General Parameters  Current Setpoint) will be modified according to the programmed information and will be displayed as the Control Point (Main Menu  General Parameters  Control Point). The mode will terminate when the Temperature Reset is not modifying the active leaving water set point, causing the Current Setpoint to equal the Control Point.

DEMAND LIMIT ACTIVE — This mode is checked for when the unit is ON. The mode is active when Demand Limit Type Select (Main Menu  Configuration Menu  General Configuration  Demand Limit Type Select) is enabled either by setting the value to 1 = Switch Control or 2 = 4-20mA Control, or setting the Night Capacity Limit (Main Menu  Configuration Menu  General Configuration  Night Capacity Limit). The Active Demand Limit Value (Main Menu  General Parameters  Active Demand Limit Value) will display the current demand limit according to the programmed information and the unit’s capacity will be reduced to the amount shown or lower. The mode will terminate when the Demand Limit command has been removed.

EVAPORATOR PUMP ROTATION — This mode is always checked. The mode is active when the Evaporator Pump Sequence (Main Menu  Configuration Menu  Pump Configuration  Evaporator Pumps Sequence) value is set to 2 = Two Pumps Automatic Changeover, and the Pump Auto Rotation Delay (Main Menu  Configuration Menu  Pump Configuration  Pump Auto Rotation Delay) has expired. The control will switch the operation of the pumps. The lead pump will operate normally. The lag pump will be started, becoming the lead, and then the original lead pump will be shut down. This mode will terminate when the pump operation has been completed.

PUMP PERIODIC START — This mode is active when the evaporator pump is started due to the periodic pump start configuration (Main Menu  Configuration Menu  Pump Configuration  Pump Sticking Protection = YES). If the pump has not run that day, a pump will be started and will run for 2 seconds at 2:00 PM. If the machine is configured for dual pumps, Pump 1 will run on even days (such as the day 2, 4, 6 of the month). Pump 2 will run on odd days (such as day 1,3, 5 of the month). The mode will terminate when the pump shuts down.

MASTER SLAVE ACTIVE — This mode is checked for if the machine is ON. This mode is active if Master Slave Control has been enabled. This occurs when two machines are programmed, one as the master (Main Menu  Configuration Menu  Master Slave config  Master/Slave select = 1) and the other as a slave (Main Menu  Configuration Menu  Master Slave config  Master/Slave select = 2). Both the master and slave machines will respond to the capacity control commands issued by the master controller. This may include control point changes and demand limit commands. This mode will terminate when Master Slave Control has been disabled (Main Menu  Configuration Menu  Master Slave Config  Master/Slave Select=0).

ICE MODE IN EFFECT — This mode is checked for when the unit is ON. This mode is active when the Cooling Ice Setpoint (Main Menu  Setpoint Table  Cooling Ice Setpoint) is in use. While in this mode, the Current Setpoint (Main Menu  General Parameters  Current Setpoint) will show the Cooling Ice Setpoint value and the unit will operate to that value. This mode will terminate when the Ice Cooling Ice Setpoint is no longer in use (ICE DONE switch is closed).

Sensors — The electronic control uses up to 15 thermistors

to sense temperatures and up to 10 transducers to sense pressure for controlling chiller operation. These sensors are outlined below.

Page 49

THERMISTORS (Tables 32-34) — Thermistors that monitor the chiller’s operation include: evaporator entering water, evaporator leaving water, dual chiller leaving water, compressor suction gas temperature, compressor discharge gas temperature, economizer temperature, liquid line temperature, compressor motor temperature, and outdoor air temperature thermistors. These thermistors are 5,000 ohms at 77 F (25 C) and are identical in temperature versus resistance. The space temperature thermistor is 10,000 ohmsat 77 F (25 C) and has a different temperature vs. resistance. See Fig. 43 for thermistor locations.

Evaporator Leaving Water Sensor

— On all sizes, this thermistor is installed in a friction fit well in the leaving water nozzle of the evaporator. See Fig. 44.

Evaporator Entering Water Sensor

— On all sizes, this thermistor is factory-installed in a friction fit well in the entering water nozzle of the evaporator.

Suction Gas Temperature

— On all sizes, this thermistor is factory-installed in a friction fit well located on the compressor of each circuit. There is one thermistor for each circuit.

Compressor Discharge Gas Temperature

— On all sizes, this thermistor is factory-installed in a friction fit well located in the discharge end of the compressor for the circuit. There is one thermistor for each circuit.

Liquid Line Temperature

— This thermistor is factory-installed in a friction fit well located in the liquid line of the circuit. There is one thermistor for each circuit.

Economizer Temperature

— On all sizes, this thermistor is factory-installed in a friction fit well located in the economizer line for the circuit. There is one thermistor for each circuit.

Compressor Motor Temperature

— On all sizes, this thermistor is embedded in the motor windings. There are two thermistors in each compressor. One spare is provided.

Outdoor Air Temperature

— This sensor is factory-installed

to the back of the control box. Remote Space Temperature

— This sensor (part no. 33ZCT55SPT) is a field-installed accessory mounted in the indoor space and is used for water temperature reset. The sensor should be installed as a wall-mounted thermostat would be (in the conditioned space where it will not

Table 32 — Thermistor Identification

be subjected to either a cooling or heating source or direct exposure to sunlight, and 4 to 5 ft above the floor).

Space temperature sensor wires are to be connected to terminals in the unit main control box. See Fig. 45. The space temperature sensor includes a terminal block (SEN) and a RJ11 female connector. The RJ11 connector is used as access into the Carrier Comfort Network

(CCN) at the sensor.

To connect the space temperature sensor (see Fig. 45):

1. Using a 20 AWG (American Wire Gage) twisted pair conductor cable rated for the application, connect one wire of the twisted pair to one SEN terminal and connect the other wire to the other SEN terminal located under the cover of the space temperature sensor.

2. Connect the other ends of the wires to terminals 7 and 8 on TB6 located in the unit control box.

Units on the CCN can be monitored from the space at the sensor through the RJ11 connector, if desired. To wire the RJ11 connector into the CCN:

1. Cut the CCN wire and strip ends of the red (+), white (ground), and black (–) conductors. (If another wire color scheme is used, strip ends of appropriate wires.)

2. Insert and secure the red (+) wire to terminal 5 of the space temperature sensor terminal block.

3. Insert and secure the white (ground) wire to terminal 4 of the space temperature sensor.

4. Insert and secure the black (–) wire to terminal 2 of the space temperature sensor.

5. Connect the other end of the communication bus cable to the remainder of the CCN communication bus.

NOTE: The energy management module (EMM) is required for this accessory.

TRANSDUCERS — There are 5 pressure transducers per circuit, and two different types of transducers: low pressure (green connector) and high pressure (black connector).

Low Pressure Type: suction pressure transducer (SPT), economizer pressure transducer (EPT).

High Pressure Type: discharge pressure transducer (DPT), oil pressure transducer (OPT), liquid line pressure transducer (LPT). See Fig. 46 for transducer locations.

THERMISTOR ID DESCRIPTION RESISTANCE AT 77 F (25 C) CONNECTION POINT

EWT Entering Water Thermistor 5k  SIOBA-J25-AI01 LWT Leaving Water Thermistor 5k  SIOBA-J25-AI02

OAT Outdoor Air Thermistor 5k  SIOBA-J25-AI03 SGTA Circuit A Suction Gas Thermistor 5k  AUXA-J6-CH12 SGTB Circuit B Suction Gas Thermistor 5k  AUXB-J6-CH12 DGTA Circuit A Discharge Gas Thermistor 5k  AUXA-J6-CH11 DGTB Circuit B Discharge Gas Thermistor 5k  AUXB-J6-CH11

LIQT_A Circuit A Liquid Line Thermistor 5k  AUXA-J7-CH13 LIQT_B Circuit B Liquid Line Thermistor 5k  AUXB-J7-CH13

ECTA Circuit A Economizer Thermistor 5k  SIOBA-J25-AI05

ECTB Circuit B Economizer Thermistor 5k  SIOBB-J25-AI05 DUAL Dual Chiller LWT Thermistor 5k  SIOBB-J25-AI03 CAMT Circuit A Motor Temperature 5k  SIOBA-J25-AI04 CBMT Circuit B Motor Temperature 5k  SIOBB-J25-AI04

SPT Space Temperature Thermistor 10k  EMM-J6-CH2

Page 50

Table 33 — 5K Thermistor Temperature (°F) vs Resistance

TEMP

(F)

RESISTANCE

(Ohms)

–25 98,010 –24 94,707 –23 91,522 –22 88,449 –21 85,486 –20 82,627 –19 79,871 –18 77,212 –17 74,648 –16 72,175 –15 69,790 –14 67,490 –13 65,272 –12 63,133 –11 61,070 –10 59,081

–9 57,162 –8 55,311 –7 53,526 –6 51,804 –5 50,143 –4 48,541 –3 46,996 –2 45,505 –1 44,066

0 42,679 1 41,339 2 40,047 3 38,800 4 37,596 5 36,435 6 35,313 7 34,231 8 33,185

9 32,176 10 31,202 11 30,260 12 29,351 13 28,473 14 27,624 15 26,804 16 26,011 17 25,245 18 24,505 19 23,789 20 23,096 21 22,427 22 21,779 23 21,153 24 20,547 25 19,960

TEMP

(F)

RESISTANCE

(Ohms)

77 4,976 78 4,855 79 4,737 80 4,622 81 4,511 82 4,403 83 4,298 84 4,196 85 4,096 86 4,000 87 3,906 88 3,814 89 3,726 90 3,640 91 3,556 92 3,474 93 3,395 94 3,318 95 3,243 96 3,170 97 3,099 98 3,031

99 2,964 100 2,898 101 2,835 102 2,773 103 2,713 104 2,655 105 2,597 106 2,542 107 2,488 108 2,436 109 2,385 110 2,335 111 2,286 112 2,239 113 2,192 114 2,147 115 2,103 116 2,060 117 2,018 118 1,977 119 1,937 120 1,898 121 1,860 122 1,822 123 1,786 124 1,750 125 1,715 126 1,680 127 1,647

TEMP

(F)

RESISTANCE

(Ohms)

179 570 180 561 181 551 182 542 183 533 184 524 185 516 186 508 187 501 188 494 189 487 190 480 191 473 192 467 193 461 194 456 195 450 196 445 197 439 198 434 199 429 200 424 201 419 202 415 203 410 204 405 205 401 206 396 207 391 208 386 209 382 210 377 211 372 212 367 213 361 214 356 215 350 216 344 217 338 218 332 219 325 220 318 221 311 222 304 223 297 224 289 225 282

TEMP

(F)

RESISTANCE

(Ohms)

26 19,393 27 18,843 28 18,311 29 17,796 30 17,297 31 16,814 32 16,346 33 15,892 34 15,453 35 15,027 36 14,614 37 14,214 38 13,826 39 13,449 40 13,084 41 12,730 42 12,387 43 12,053 44 11,730 45 11,416 46 11,112 47 10,816 48 10,529 49 10,250 50 9,979 51 9,717 52 9,461 53 9,213 54 8,973 55 8,739 56 8,511 57 8,291 58 8,076 59 7,686 60 7,665 61 7,468 62 7,277 63 7,091 64 6,911 65 6,735 66 6,564 67 6,399 68 6,238 69 6,081 70 5,929 71 5,781 72 5,637 73 5,497 74 5,361 75 5,229 76 5,101

TEMP

(F)

RESISTANCE

(Ohms)

128 1,614 129 1,582 130 1,550 131 1,519 132 1,489 133 1,459 134 1,430 135 1,401 136 1,373 137 1,345 138 1,318 139 1,291 140 1,265 141 1,240 142 1,214 143 1,190 144 1,165 145 1,141 146 1,118 147 1,095 148 1,072 149 1,050 150 1,029 151 1,007 152 986 153 965 154 945 155 925 156 906 157 887 158 868 159 850 160 832 161 815 162 798 163 782 164 765 165 750 166 734 167 719 168 705 169 690 170 677 171 663 172 650 173 638 174 626 175 614 176 602 177 591 178 581

TEMP

(C)

RESISTANCE

(Ohms)

–32 100,260 –31 94,165 –30 88,480 –29 83,170 –28 78,125 –27 73,580 –26 69,250 –25 65,205 –24 61,420 –23 57,875 –22 54,555 –21 51,450 –20 48,536 –19 45,807 –18 43,247 –17 40,845 –16 38,592 –15 38,476 –14 34,489 –13 32,621 –12 30,866 –11 29,216 –10 27,633

–9 26,202 –8 24,827 –7 23,532 –6 22,313 –5 21,163 –4 20,079 –3 19,058 –2 18,094 –1 17,184

0 16,325 1 15,515 2 14,749 3 14,026 4 13,342 5 12,696 6 12,085 7 11,506 8 10,959

9 10,441 10 9,949 11 9,485 12 9,044 13 8,627 14 8,231

TEMP

(C)

RESISTANCE

(Ohms)

15 7,855 16 7,499 17 7,161 18 6,840 19 6,536 20 6,246 21 5,971 22 5,710 23 5,461 24 5,225 25 5,000 26 4,786 27 4,583 28 4,389 29 4,204 30 4,028 31 3,861 32 3,701 33 3,549 34 3,404 35 3,266 36 3,134 37 3,008 38 2,888 39 2,773 40 2,663 41 2,559 42 2,459 43 2,363 44 2,272 45 2,184 46 2,101 47 2,021 48 1,944 49 1,871 50 1,801 51 1,734 52 1,670 53 1,609 54 1,550 55 1,493 56 1,439 57 1,387 58 1,337 59 1,290 60 1,244 61 1,200

TEMP

(C)

RESISTANCE

(Ohms)

62 1,158 63 1,118 64 1,079 65 1,041 66 1,006 67 971 68 938 69 906 70 876 71 836 72 805 73 775 74 747 75 719 76 693 77 669 78 645 79 623 80 602 81 583 82 564 83 547 84 531 85 516 86 502 87 489 88 477 89 466 90 456 91 446 92 436 93 427 94 419 95 410 96 402 97 393 98 385

99 376 100 367 101 357 102 346 103 335 104 324 105 312 106 299 107 285

Table 34 — 5K Thermistor Temperature (°C) vs Resistance/Voltage

Page 51

Fig. 43 — Thermistor Locations

OUTDOOR AIR TEMPERATURE (OAT)

SUCTION GAS TEMPERATURE (SGTA)

COMPRESSOR A TEMPERATURE

ECONOMIZER TEMPERATURE (ECTA)

DISCHARGE GAS TEMPERATURE (DGTA)

LIQUID TEMP (LIQT A)

SUCTION GAS TEMPERATURE (SGTB)

DISCHARGE GAS TEMPERATURE (DGTB)

ECONOMIZER TEMPERATURE (ECTB)

LIQUID TEMP (LIQT B)

COMPRESSOR B TEMPERATURE

LEAVING WATER TEMPERATURE (LWT)

ENTERING WATER TEMPERATURE (EWT)

5/8 in. HEX

6" MINIMUM

CLEARANCE FOR

THERMISTOR

REMOVAL

1.188 in.

2.315 in.

1/4-18 NPT

Fig. 44 — Dual Chiller Accessory Kit Leaving Water Thermistor and Well (Part No. 00EFN900044000A)

TB6

SEN

SENSOR

Fig. 45 — Typical Remote Space Temperature

Sensor (33ZCT55SPT) Wiring

WIRE TIE

INSERT THERMISTOR UNTIL

O-RING MEETS THE

THERMISTOR WELL BODY.

LOOP

THERMISTOR WIRE

AND SECURE

TO CHILLED WATER PIPE

Page 52

Economizer Assembly —

Fig. 46 — Transducer and Switch Locations

SUCTION PRESSURE TRANSDUCER (SPT A)

OIL SEPARATOR (A)

OIL PRESSURE TRANSDUCER (OPT A)

ECONOMIZER PRESSURE TRANSDUCER (EPT A)

LIQUID LINE PRESSURE TRANSDUCER (LPT A)

EVAPORATOR (B)

COMPRESSOR (B)

DISCHARGE PRESSURE TRANSDUCER (DPT A)

SUCTION PRESSURE TRANSDUCER (SPT B)

OIL PRESSURE TRANSDUCER (OPT B)

ECONOMIZER PRESSURE TRANSDUCER (EPT B)

LIQUID LINE PRESSURE TRANSDUCER (LPT B)

DISCHARGE PRESSURE TRANSDUCER (DPT B)

OIL LEVEL SWITCH (OIL LS B)

EVAPORATOR (A)

COMPRESSOR (A)

HIGH PRESSURE SWITCH (HPS B)

HIGH PRESSURE SWITCH (HPS A)

EVAPORATOR FLOW SWITCH (CWFS)

OIL SEPARATOR (B)

OIL LEVEL SWITCH (OIL LSA)

POWERBOX END

an economizer assembly, which includes a brazed plate heat exchanger, electronic expansion valves (EXVs), and other components. See Fig. 47.

Electronic Expansion Valve (EXV) — See Fig. 48

for a cutaway view of the EXV. High-pressure liquid refrigerant enters the valve through the top. As refrigerant passes through the orifice, pressure drops and refrigerant changes to a 2-phase condition (liquid and vapor). The electronic expansion valve operates through electronically controlled activation of a stepper motor. The stepper motor stays in position unless power pulses initiate the two discrete sets of motor stator windings for rotation in either direction. The direction depends on the phase relationship of the power pulses. The motor directly operates the spindle, which has rotating movements that are transformed into linear motion by the transmission in the cage assembly. The valve cone is a V-port type which includes a positive shut-off when closed. The large number of steps and long stroke results in very accurate control of the refrigerant flow. The stepper motor has either 3810 (main) or 2625 (economizer) steps.

MAIN EXV CONTROL — The main EXV is controlled by the SIOB (J17-STPR1). Each circuit has thermistors located in the discharge line compressor (DGT), compressor motor cavity (SGT) and liquid line leaving the condenser (LIQT). Each circuit also has a discharge (DPT), suction (SPT), and liquid line pressure transducer (LPT). All the pressure readings as measured by the transducers are converted to saturated temperatures. The main control logic for the EXV uses liquid line subcooling, which is the difference between the liquid line saturation temperature and the liquid line temperature, to control the position of the EXV. The SIOB module controls the position of the electronic expansion valve stepper motor to maintain the subcooling set point. The EXV control logic has several overrides, which are also used to control the position of the EXV.

• Normal Mode (SUBCOOL)

• Low Discharge Superheat (DSH)

• Low Suction Pressure (SPMIN)

• Maximum Suction Pressure (SPMAX)

SERVICE

Each circuit on the unit has

• EXV Start (START) To view EXV overrides: Main Menu  Maintenance Menu

 EXV Control or EXVECO Control. Normal Mode (SUBCOOL)

— This is the normal mode of operation of the EXV. Based on the operating condition and loading of the compressor, the control calculates an optimal subcooling setting to maximize the system efficiency. The controls accordingly adjust the EXV opening to meet this calculated subcooling setting. The range of the subcooling setting can be altered by using the Network Service Tool in the Configuration  EXV_CFG table.

Low Discharge Superheat (DSH)

— The EXV control goes into the DSH mode when the DSH is below 16.2 F (9 C). The EXV closes down to increase the discharge superheat beyond

16.2 F (9 C) and returns to the SUBCOOL mode. Low Suction Pressure (SPMIN)

— The EXV control tries to open up the EXV to increase the suction pressure and come out of this mode. The SST setting to enter this mode is dependent on the fluid type. With water the EXV enters this mode if SST is less than 25 F (–3.9 C) in normal discharge superheat or less than 13 F (–10.6 C) in low DSH condition. It remains in this mode until SST is greater than 34 F (1.1 C) or greater than 25 F (–3.9 C) if subcool is greater than subcool setpoint.

Maximum Suction Pressure (SPMAX)

— The EXV enters this mode if the suction saturation temperature (SST) is greater than 55 F (13 C). The EXV closes down to regulate the SST at about 53.2 F (11.8 C). If the SST is less than 52.3 F (11.3 C) then the EXV returns to the normal mode of operation.

ECONOMIZER EXV CONTROL — The economizer EXV is controlled by the SIOB (J18-STPR2). An economizer gas temperature thermistor (ECT) and an economizer pressure transducer (EPT) are located in the line running from the economizer assembly to the compressor. The economizer pressure is converted to saturated temperature and is used to calculate economizer superheat. Economizer superheat equals economizer temperature minus saturated economizer temperature. The control system controls the economizer EXV to maintain the economizer superheat setpoint, which is approximately 18 F (–7.8 C). If the circuit capacity is less than 50%, the economizer EXV will be closed.

Page 53

Fig. 47 — Economizer Assembly

LIQUID LINE SHUT OFF VALVE

MAIN EXV

SIGHT GLASS

MAIN FLOW TO EVAPORATOR

ECONOMIZER EXV

FILTER DRIER

BRAZED PLATE HEAT EXCHANGER (ECONOMIZER)

ECONOMIZER RELIEF

ECONOMIZER FLOW TO COMPRESSOR

Fig. 48 — Cutaway Views of the Electronic Expansion Valve

1. Cable

2. Glass Seal

3. Motor Housing

4. Stepper Motor

5. Bearing

6. Lead Screw

7. Insert

8. Valve Piston

9. Valve Seat

10. Valve Port

a30-4241

EXV TROUBLESHOOTING PROCEDURE — There are two different economizer EXVs. Both of the economizer EXVs have a total of 2625 steps. There are three different main EXVs, which all have a total of 3810 steps. The EXV motor moves at 150 steps per second. Commanding the valve to either 0% or 100% will add an additional 160 steps to the move, to ensure the valve is open or closed completely.

Do not remove EXV cables from the SIOB board with the power applied to the board. Damage to the board may occur.

CAUTION

Follow the steps below to diagnose and correct EXV problems. Check EXV motor operation first. Switch the Enable/ Off/Remote (EOR) Contact switch to the Off position.

Check the appropriate circuit EXV, EXV Position Circuit A % Open (Main Menu  Quick Test  Circuit A EXV Position) or EXV Position Circuit B % Open (Main Menu  Maintenance Menu  EXV Control). Use Quick Test procedure on page 116. The current value of 0 will be displayed. Increase the EXV position to select 100% valve position. The actuator should be felt moving through the EXV. To close the valve, select 0%. The actuator should knock when it reaches the bottom of its stroke.

Page 54

If the valve is not working properly, continue with the fol-

lowing test procedure:

Check the EXV output signals at appropriate terminals on SIOB-A (J17-STPR1) and SIOB-B (J17-STPR1). Refer to Tables 6 and 7 for additional information.

Connect positive test lead to SIOB(X)-J17 terminal 12V for EXV(X) and SIOB(X)-J18 terminal 12V for economizer EXV(X). Using the Quick Test procedure on page 116, move the valve output under test to 100%. DO NOT short meter leads together or pin 12V to any other pin, as board damage will occur. During the next several seconds, carefully connect the negative test lead to pins A,B,C and D in succession. Digital voltmeters will average this signal and display approximately 6 vdc. If the output remains at a constant voltage other than 6 vdc or shows 0 volts, remove the connector to the valve and recheck.

Select 0% to close the valve. NOTE: Twelve vdc is the output from the SIOB board when

the valve is stationary.

If a problem still exists, replace the SIOB board. If the reading is correct, the expansion valve and EXV wiring should be checked. Check the EXV connector and interconnecting wiring.

1. Check color-coding and wire connections. Make sure they are connected to the correct terminals at the EXV board and EXV plug and that the cables are not crossed.

2. Check for continuity and tight connection at all pin terminals.

Check the resistance of the EXV motor windings. Remove the EXV module plug SIOB(X)-J17 for main EXV and SIOB(X)-J18 for economizer EXV. Check the resistance of the two windings between pins A and C for one winding and pins B and D for the other winding. The resistance should be 52 ohms (± 5.2 ohms). Also check pins A-D for any shorts to ground.

Inspecting/Opening Electronic Expansion Valves

IMPORTANT: Obtain replacement gaskets before opening EXV. Do not re-use gaskets.

For units with isolation valve option: Close the ball valves on the liquid line directly above the filter drier, after the main EXV before the evaporator, and on the economizer line to the compressor. Remove any remaining refrigerant from the economizer assembly using proper recovery techniques. The economizer assembly has a

/4-in. access connection which can be used to remove charge from the inlet of the EXVs. Turn off the line voltage power supply to the compressors.

CAUTION

Ensure refrigerant is removed from both the inlet and outlet of EXV assemblies. Equipment damage could result.

2. The expansion valve motor is hermetically sealed inside the top portion of the valve. See Fig. 48. Disconnect the EXV plug. Carefully unscrew the motor portion from the body of the valve. The EXV operator will come out with the motor portion of the device. Reconnect the EXV plug.

3. Enter the appropriate EXV test step under the Test mode (Main Menu  Quick Test Table). Locate the desired parameter for the Main EXVs: Circuit A EXV Position, Circuit B EXV Position or Economizer EXVs: EXV Eco Position Cir A, EXV Eco Position Cir B. Change the position to 100%. Observe the operation of the lead screw. See Fig. 48. The motor should be turning, raising the operator closer to the motor. Motor actuator movement should be smooth and uniform from fully closed to fully open position. Select 0% and check open to closed operation. If the valve is properly connected to the processor and receiving correct signals, yet does not operate as described above, the sealed motor portion of the valve should be replaced.

Installing EXV Motor

IMPORTANT: Obtain replacement gasket before opening EXV. Do not re-use gaskets.

To check the physical operation of an EXV, the following steps should be performed. Charge not isolated within the unit must be recovered using proper refrigerant recovery techniques.

1. Isolate refrigerant within the chiller and recover remaining charge. This will allow access to internal EXV components. Closing the valves will minimize the amount of refrigerant that will need to be removed.

For units without isolation valve option: Close the liquid line ball valve directly above the filter drier as well as the discharge line ball valves (see the Actuated Ball Valve section on page 47 for instructions). Remove any remaining refrigerant from the system low side using proper recovery techniques. The evaporator liquid line inlet has an access port that can be used to remove charge from the evaporator. The economizer assembly has a

/4-in. access

connection which can be used to remove charge from the

If re-installing the motor, be sure to use a new gasket in the assembly. See Fig. 49. It is easier to install the motor assembly with the piston in the fully closed position. Insert the motor into the body of the EXV. Tighten the motor to the body to 36 ft-lb (50 N-m) and then tighten the valve another 30 degrees.

Moisture Liquid Indicator — Clear flow of liquid refrigerant indicates sufficient charge in system. Bubbles in the sight glass indicate undercharged system or presence of noncondensables. Moisture in system, measured in parts per million (ppm), changes color of indicator. See Table 35. Change filter drier at first sign of moisture in system.

IMPORTANT: Unit must be in operation at least 12 hours before moisture indicator can give an accurate reading.

With unit running, indicating element must be in contact with liquid refrigerant to give true reading.

inlet of the EXVs. Turn off the line voltage power supply to the compressors.

Table 35 — Color Indicators when Moisture is Present in Refrigerant

COLOR INDICATOR R-134a, 75 F (24 C) (ppm) R-134a, 125 F (52 C) (ppm) Green — Dry < 30 < 45 Yellow-green — Caution 30-100 45-170 Yellow — Wet >100 >170

Page 55

Filter Drier — Whenever moisture-liquid indicator shows

CLOSED

OPEN

CLOSED

OPEN

GASKET

OPEN VALVE IN QUICK TEST SUB-MODE BEFORE DISASSEMBLING

EF05BD271 NV 32.5mm EF05BD331 NV 36mm

50Nm (36 ft-lb)+ 30°

27mm / 1

/16''

27mm / 1

/16''

ADAPTER

NOTES:

1. Push down on valve piston to close valve before assembling.

2. After valve is assembled close valve in Quick Test sub-mode or cycle power before opening service valve.

Fig. 49 — Disassembly and Assembly of EXV Motor

a30-4072

DISASSEMBLY

ASSEMBLY

presence of moisture, replace filter drier(s). There is one filter drier assembly on each circuit with two cores. Refer to the Carrier Standard Service Techniques Manual, Chapter 1, Refrigerants, for details on servicing filter driers.

Liquid Line Service Valve — This valve is located immediately ahead of filter drier, and has a charging. In combination with compressor discharge service valve, each circuit can be pumped down into the high side for servicing with plate fin coils. Microchannel coils (MCHX) have much smaller volume and cannot accommodate the entire circuit charge.

Compressor Assembly — The 30XV units utilize

Greenspeed intelligence for efficient operation. The compressor is controlled by a VFD. See Fig. 50 for a view of a typical 06Z compressor. For optimal efficiency the compressor uses a variable inlet (VI) valve to change the inlet area of the lobes at different loading points. The valve is opened or closed by a solenoid on the compressor. The control logic looks at calculated parameters to determine the switch point of the valve.

VI VALVE TROUBLESHOOTING — Use the quick test

/4-in. access connection for field

used for refrigerant system piping will have a yellow mark on one side of the gasket lips.

2. Apply a thin coat of Victaulic lubricant or silicone lubricant to the gasket sealing lips and exterior.

Always use a compatible lubricant to prevent the gasket from pinching or tearing during installation. Failure to follow this instruction could result in joint leakage.

3. Position the gasket over the pipe end. Make sure the gasket does not overhang the pipe end.

4. Align and bring the two pipe ends together. Slide the gasket into position and center it between the grooves in each pipe end. Make sure no portion of the gasket extends into the groove in either pipe end.

5. Install the housings over the gasket. Make sure the housings’ keys engage the grooves completely on both pipe ends.

table (Main Menu  Quick Test Table  Circuit X VI) to enable the VI valve output. Enable the valve output and verify the coil solenoid is energized.

SUCTION VICTAULIC COUPLING INSTALLATION

1. The outside surface of the pipe, between the groove and the pipe end, must be smooth and free from inden-

Make sure the gasket does not become rolled or pinched while installing the housings. Failure to follow this instruction could cause damage to the gasket, resulting in joint leakage.

tations, projections (including weld seams), and roll marks to ensure a leak-tight seal. All oil, grease, loose paint, and dirt must be removed. The Victaulic gasket

6. Install the bolts, and thread a nut finger-tight onto each bolt. For couplings supplied with stainless steel hardware,

CAUTION

Page 56

apply an anti-seize compound to the bolt threads. Make sure the oval neck of each bolt seats properly in the bolt hole.

7. Tighten the nuts evenly by alternating sides until metalto-metal contact occurs at the bolt pads. Make sure the housings’ keys engage the grooves completely. It is important to tighten the nuts evenly to prevent gasket pinching.

8. Visually inspect the bolt pads at each joint to ensure metal-to-metal contact is achieved.

COMPRESSOR OIL SYSTEM — Each compressor/circuit has its own oil system which includes an oil filter, oil solenoid, check valve, oil level switch, oil separator heater, oil pressure transducer, and an oil shut-off valve. A typical oil system is shown in Fig. 51. See Table 36 for required oil quantity per circuit, initially included from the factory.

Table 36 — Unit Oil Quantities

30XV UNIT SIZE

140 - 200 4.0 [17.0] 4.0 [17.0]

250 - 325 6.0 [20.8] 6.0 [20.8]

Oil Charge

225 6.0 [20.8] 4.0 [17.0]

— When additional oil or a complete charge is

OIL CHARGE (gal, [liters])

Circuit A Circuit B

required it must meet the following specifications:

• Manufacturer . . . . . . . . . . . . . . . . . . Emkarate RL220XL

• Oil Type. . . . . . . . . . . . . . . . Inhibited polyolester-based

synthetic compressor lubricant for use with screw compressors.

• ISO Viscosity Grade . . . . . . . . . . . . . . . . . . . . . . . . . 220

Do not reuse drained oil or any oil that has been exposed to the atmosphere.

Oil is available in the following quantities from your local Carrier representative:

QUANTITY TOTALINE PART NO. 1 Quart P903-2325 1 Gallon P903-2301 5 Gallon P903-2305

If unsure if there is low oil charge in the system, follow the steps below:

1. If the unit shuts off repeatedly from a low oil level alert, it may be an indication of inadequate oil charge: however, it could also indicate the oil is not being reclaimed from the low-side of the system.

2. Begin running the circuit at full load for 1

/2 hours.

NOTE: An adequate load must be available.

3. After running the unit for 1.5 hours at full load, stop the unit. Check the oil level in the oil separator sight glass. An oil level should be visible in the upper sight glass. If level is not visible, the unit is low on oil charge.

4. Add oil until the oil is at the center of the upper sight glass. Make sure not to add oil beyond this level as excess oil will be carried out of the oil separator into the system and might lead to system instabilities at certain conditions.

5. The factory oil charging stations are programed to add precise amount of oil to the oil separator and if the oil level while inspection shows higher than middle of the top sight glass then it could be due to refrigerant mixed in it. Do not remove any oil.

Add oil to the oil separator using the

/4-in. access fitting

on the side of the separator. NOTE: To facilitate the oil charging process, ensure that

the unit is not running when adding oil. The system is under pressure even when the unit is not running, so it is necessary to use a suitable pump to add oil to the system. Using a suitable pump, add the system. Continue adding oil in

/2 gal (1.9 L) of oil to

/2 gal (1.9 L) incre-

ments until the problem is resolved, up to a maximum of

1.5 gal (5.7 L).

Oil Filter Maintenance

— Each circuit has one oil filter bolted externally to the compressor. Oil line pressure drop is monitored by the control. Oil line pressure drop is calculated by subtracting oil pressure (OPT) from discharge pressure (DPT). If the oil line pressure drop exceeds 30 psig (206.8 kPa) for 5 minutes the control will generate a High Oil Filter Pressure Drop alert. The High Oil Filter Pressure Drop alert will not shut down the compressor, but instead indicates that the oil filter is dirty. If oil pressure line losses exceed 50 psig (344.7 kPa) for more than 30 seconds then the control will shut down the circuit on Maximum Oil Filter Differential Pressure Failure.

CAUTION

Compressor oil is pressurized. Use proper safety precautions when relieving pressure.

Replacing the Oil Filter

— Close the oil service valves on either side of filter by removing the cap and closing the valve. One is connected to the oil filter and the other is mounted on the compressor. Connect a charging hose to the ¼-in. access fitting port located between the filter and compressor. Bleed off the oil located in this section. A quart of oil is typically removed during this process. Unscrew the nuts on either side of the filter. Remove the filter and install the new one. Make sure to remove the plastic caps from the new filter before installation. Take care not to lose or damage the new o-rings on the new filter. Draw a vacuum at the service port. Remove the charging hose and open the oil service valves. Replace caps on access port and service valves. Check both fittings for leaks.

Evaporator Service — The 30XV units use flooded

style evaporators. ISOLATION VALVE — The isolation valve is a factory-

installed option for 30XV units. The option includes a butterfly-style suction service valve on the suction lines, and manual ball valves on discharge, evaporator inlet and economizer lines. The butterfly valve is connected to the suction line by Victaulic connections. See Fig. 52 and 53 for details on the butterfly suction service valve operation. The valve locks into place when fully opened or fully closed.

Page 57

Fig. 50 — Typical 06Z Compressor (All Units)

MOTOR THERMISTOR TERMINALS

OIL PRESSURE TRANSDUCER LOCATION

HIGH PRESSURE SWITCH LOCATION

HIGH PRESSURE TRANSDUCER LOCATION

ECONOMIZER PORT

DISCHARGE PRESSURE TAP

SIDE VIEW

SUCTION PRESSURE TRANSDUCER LOCATION

VI SOLENOID VALVE

OIL SOLENOID VALVE

COMPRESSOR TERMINALS

OIL INLET PORT

TOP VIEW

COMPRESSOR TERMINALS

DISCHARGE GAS THERMISTOR

SUCTION TEMPERATURE THERMISTOR LOCATION

Page 58

Fig. 51 — Typical Oil System (All Units)

OIL FILTER

OIL SERVICE VALVES

OIL SOLENOID

OIL SEPARATOR

Fig. 52 — Suction Service Valve

Butterfly Valve Closed

Fig. 53 — Suction Service Valve

Butterfly Valve Open

Page 59

EVAPORATOR FREEZE PROTECTION — All evapora-

Fig. 54 — Evaporator Heater Set Point Adjustment

LEGEND

1—Overcurrent Adjusting Potentiometer 2—Power Supply Status LED (green) 3—Relay Output Supply Status LED (yellow) 4—35 mm Rail Clip-in Spring

a30-5648

Fig. 55 — Elliott Tube Plug

a30-4083

tors are equipped with evaporator heaters (unless removed as an option for Middle Eastern regions). The control logic uses the unit status, outdoor air temperature, and the saturated suction temperatures for all circuits to decide if the evaporator heater should be energized. The evaporator heaters can only be energized when the state of the unit is OFF. The evaporator heaters will be energized according to the following logic:

1. The Evaporator Heater Setpoint is the Brine Freeze Setpoint + Evaporator Heater Delta Setpoint.

2. If the outside air temperature (OAT) is below the Evaporator Heater Setpoint or if the saturated suction temperature (SST) of any one circuit is lower than the Evaporator Heater Setpoint + 6° F (3.3° C), the evaporator heater is activated, or if already activated, will remain on.

3. If the SST of all circuits is higher than the Evaporator Heater Setpoint + 10° F (5.5° C), and if OAT is higher than the Evaporator Heater Setpoint +2° F, the evaporator heater will be turned off, or if already off, will remain off.

4. If either condition 2 or condition 3 above is not met, the heater mode remains unchanged.

If the entering or leaving water temperature is less than the Brine Freeze Setpoint (Main Menu  Configuration Menu  Service Parameters  Brine Freeze Setpoint) +1.0° F (0.5° C), then the heater will be turned on along with the pump.

A current sensing relay monitors the current to the evaporator heaters. If a heater fails, the reduction in current will switch the relay and produce a Evaporator Freezer Alarm (EVAPORATOR_FREEZE, 10001). In addition, the pump signal will energize. See Appendix G for relay set points. See Fig. 54 for evaporator heater current sensing relay set point adjustment location.

LOW FLUID TEMPERATURE — The Touch Pilot control is programmed to shut chiller down if leaving fluid temperature drops below 34 F (1.1 C) for evaporator fluid type water or below the Brine Freeze Setpoint (Main Menu  Configuration Menu  Service Parameters  Line 5) for the evaporator fluid type brine. When fluid temperature rises to 6° F (3.3° C) above the leaving fluid set point, the alarm will reset and the chiller restarts. Reset is automatic as long as this is the first occurrence. For repeat occurrences within 24 hours the alarm must be manually reset.

LOSS OF FLUID FLOW PROTECTION — All 30XV machines include an integral flow switch that protects the evaporator against loss of evaporator flow.

TUBE PLUGGING — A leaky tube can be plugged until retubing can be done. The number of tubes plugged determines how soon the evaporator must be retubed. All tubes in the evaporator may be removed. Loss of unit capacity and efficiency as well as increased pump power will result from plugging tubes. Failed tubes should be replaced as soon as possible. Up to 10% of the total number of tubes can be plugged before retubing is necessary. Figure 55 shows an Elliott tube plug and a cross-sectional view of a plug in place. See Tables 37 and 38 for plug components. If the tube failure occurs in both circuits using tube plugs will not correct the problem. Contact your local Carrier representative for assistance.

CAUTION

Use extreme care when installing plugs to prevent damage to the tube sheet section between the holes.

To configure this option with the Touch Pilot controls:

DISPLAY

NAME

Evaporator Heater Installed

NOTE: Evaporator Heater must be configured to YES for the actuated ball valves (ABV) to operate.

Main Menu Configuration Menu  Factory Parameters

PATH VALUE

Evap Heater Installed YES/NO

IMPORTANT: If unit is installed in an area where ambient temperatures fall below 32 F (0° C), a suitable corrosion-inhibited antifreeze solution or evaporator heater must be used in the chilled water circuit.

Table 37 — Plug Component Parts

(Evaporator Units Only)

COMPONENT PART NUMBER

For Tubes

Brass Pin 853103-1*

Brass Ring

For Holes without tubes

Brass Pin 853103-1A

Brass Ring 85102-738 Loctite No. 675 † Locquic “N”† Roller Extension S82-112/11

*Order directly from Elliot Tool Technologies, Dayton, OH or RCD.

†Can be obtained locally.

853002-640 or 657*

(measure tube ID

before ordering)

Table 38 — Evaporator Tube Components

COMPONENT

Tube sheet hole diameter 0.756 19.20 Tube OD 0.750 19.05 Tube ID after rolling (includes

expansion due to clearance.)

NOTE: Tubes replaced along heat exchanger head partitions must be flush with tube sheet (both ends).

0.650 to

0.667

SIZE

in. mm

16.51 to 16.94

Page 60

EVAPORATOR RETUBING — When retubing is required,

SINGLE PASS ONLY

Fig. 56 — Flooded Evaporator Unit Head

Recommended Bolt Torque Sequence

a30-4246

24 VAC

BRN WHT BLK

BLU

Fig. 57 — Chilled Water Flow Switch

OUT

FLOW SWITCH (NOT TO SCALE)

a30-5854

Fig. 58 — Flow Switch Location

obtain the service of qualified personnel experienced in boiler maintenance and repair. Most standard procedures can be followed when retubing the evaporators. An 8% crush is recommended when rolling replacement tubes into the tube sheet. Place one drop of Loctite No. 675 or equivalent on top of tube prior to rolling. This material is intended to “wick” into the area of the tube that is not rolled into the tube sheet, and prevent fluid from accumulating between the tube and the tube sheet. New tubes must also be rolled into the center tube sheet to prevent circuit to circuit leaks.

TIGHTENING EVAPORATOR HEAD BOLTS Preparation

— When reassembling evaporator heads, always check the condition of the O-rings first. The O-ring should be replaced if there are visible signs of deterioration, cuts or damage. Apply a thin film of grease to the O-ring before installation. This will aid in holding the O-ring in the groove while the head is installed. Torque all bolts to the following specification and in sequence:

/4-in. Diameter Perimeter Bolts (Grade 5). . . . 200 to 225 ft-lb

(271 to 305 N-m)

1. Install all bolts finger tight.

2. Bolt tightening sequence is outlined in Fig. 56. Follow the numbering or lettering sequence so that pressure is evenly applied to O-ring.

3. Apply torque in one-third steps until required torque is reached. Load all bolts to each one-third step before proceeding to next one-third step.

4. No less than one hour later, retighten all bolts to required torque values.

5. After refrigerant is restored to system, check for refrigerant leaks using recommended industry practices.

6. Replace evaporator insulation.

CAUTION

Hard scale may require chemical treatment for its prevention or removal. Consult a water treatment specialist for proper treatment procedures.

EVAPORATOR CHILLED WATER FLOW SWITCH — A thermal-dispersion flow switch is factory-installed in the entering water nozzle for all machines. See Fig. 57 and 58. Figure 58 shows typical installation. If nuisance trips of the sensor are occurring, follow the steps below to correct:

1. Check to confirm that all strainers are clean, valves are open and pumps are running. For the case of variable frequency drive (VFD) controlled pumps, ensure the minimum speed setting has not been changed.

2. Measure the pressure drop across the evaporator. Use the evaporator pressure drop curves on page 46 to calculate the flow and compare this to system requirements. The pressure drop curves are for water only.

INSPECTING/CLEANING HEAT EXCHANGERS —

erating season. Because these tubes have internal ridges, a rotary-type tube cleaning system is necessary to fully clean the tubes. Tube condition in the evaporator will determine the scheduled frequency for cleaning, and will indicate whether water treatment is adequate in the chilled water/brine circuit.

Inspect and clean evaporator tubes at the end of the first op-

Inspect the entering and leaving water thermistor wells for signs of corrosion or scale. Replace the well if corroded or remove any scale if found.

All Units

EVAPORATOR WATER TREATMENT — Untreated or improperly treated water may result in corrosion, scaling, erosion or algae. The services of a qualified water treatment specialist should be obtained to develop and monitor a treatment program.

Page 61

CAUTION

Water must be within design flow limits, clean and treated to ensure proper machine performance and reduce the potential of tubing damage due to corrosion, scaling, and algae. Carrier assumes no responsibility for evaporator damage resulting from untreated or improperly treated water.

PREPARATION FOR WINTER SHUTDOWN — If the unit is not operational during the winter months, at the end of the cooling season complete the following steps.

CAUTION

3. It is recommended that the loop be protected with a suitable corrosion-inhibited antifreeze solution such as propylene glycol. The concentration should be adequate to provide freeze protection to 15° F (8.3° C) below the expected low ambient temperature conditions. Evaporator heaters will not protect the evaporator from freeze-up in the event of power loss.

Microchannel Heat Exchanger (MCHX) Condenser Coil Maintenance and Cleaning Recommendations —

essential to maintain proper operation of the unit. Elimination of contamination and removal of harmful residues will greatly increase the life of the coil and extend the life of the unit. The following steps should be taken to clean MCHX condenser coils:

Routine cleaning of coil surfaces is

Failure to remove power before draining heater equipped evaporators can result in heater damage.

Evaporator to be drained for winter shutdown

1. To prepare the system for winter shutdown, draining the fluid from the system is highly recommended. Isolate the evaporator from the rest of the system with water shutoff valves. Be sure to deenergize heaters (if installed) by opening circuit breaker (CB-7) or shut off power to the chiller to prevent damage if the evaporator is drained.

2. Remove the evaporator drain plug. Follow all local codes and regulations regarding the fluid disposal.

3. Once fully drained, replace the drain plug(s) and completely fill the evaporator, and hydronic package if equipped, with suitable corrosion-inhibited antifreeze solution such as propylene glycol. The concentration should be adequate to provide freeze protection to 15° F (8.3° C) below the expected low ambient temperature conditions. Antifreeze can be added through the vent on top of the evaporator head. Evaporator fluid volumes can be found in the Installation Instructions for the unit.

4. Leave the evaporator filled with the antifreeze solution for the winter to provide corrosion protection during the off season. The evaporator may be drained if desired. Follow all local codes and regulations regarding the fluid disposal.

5. At the beginning of the next cooling season, be sure that there is refrigerant pressure in each circuit before refilling evaporator, add recommended inhibitor, and reset the circuit breaker for the heater (CB-7) if opened or restore power.

Evaporator to remain filled for winter shutdown

1. If the evaporator will not be drained, do not shut off power disconnect during off-season shutdown.

2. If the chilled water loop is not protected with a suitable corrosion-inhibited antifreeze solution such as propylene glycol, the unit must have evaporator pump control. In the event of a power failure with sub-freezing temperatures, the unit will not have any evaporator freeze protection and may be subject to damage.

CAUTION

Operation or winter shutdown with fresh water is not failsafe should there be a loss of power to the chiller or to the circulating pump. Freeze damage due to power loss or disabling chiller pump control in fresh water systems will impair or otherwise negatively affect the warranty.

CAUTION

Do not apply any chemical cleaners to MCHX condenser coils. These cleaners can accelerate corrosion and damage the coil.

1. Remove any foreign objects or debris attached to the coil face or trapped within the mounting frame and brackets.

2. Put on personal protective equipment including safety glasses and/or face shield, waterproof clothing and gloves. Full coverage clothing is recommended.

3. Start high pressure water sprayer and purge any soap or industrial cleaners from sprayer before cleaning condenser coils. Only clean potable water is authorized for cleaning condenser coils.

4. Clean condenser face by spraying the coil steady and uniformly from top to bottom while directing the spray straight toward the coil. Do not exceed 900 psig (6205 kPa), 104 F (40 C) water temperature, or 45 degree angle. The nozzle must be at least 12 in. (304.8 mm) from the coil face. Reduce pressure and use caution to prevent damage to air centers.

CAUTION

Excessive water pressure will fracture the braze between air centers and refrigerant tubes.

RTPF (Round Tube Plate Fin) Condenser Coil Maintenance and Cleaning Recommendations —

maintain proper operation of the unit. Elimination of contamination and removal of harmful residues will greatly increase the life of the coil and extend the life of the unit. The following maintenance and cleaning procedures are recommended as part of the routine maintenance activities to extend the life of the coil.

REMOVE SURFACE LOADED FIBERS — Surface loaded fibers or dirt should be removed with a vacuum cleaner. If a vacuum cleaner is not available, a soft non-metallic bristle brush may be used. In either case, the tool should be applied in the direction of the fins. Coil surfaces can be easily damaged (fin edges can be easily bent over and damage to the coating of a protected coil) if the tool is applied across the fins.

NOTE: Use of a water stream, such as a garden hose, against a surface loaded coil will drive the fibers and dirt into the coil. This will make cleaning efforts more difficult. Surface loaded fibers must be completely removed prior to using low velocity clean water rinse.

PERIODIC CLEAN WATER RINSE — A periodic clean water rinse is very beneficial for coils that are applied in coastal or industrial environments. However, it is very important that

Routine cleaning of coil surfaces is essential to

Page 62

the water rinse is made with very low velocity water stream to

WIRE GUARD

FAN BLADE

FAN DECK

FORMED METAL MOUNT

MOTOR

a30-5863

Fig. 59 — Fan Mounting

avoid damaging the fin edges. Monthly cleaning as described below is recommended.

ROUTINE CLEANING OF RTPF COIL SURFACE — Routine cleaning with Totaline

environmentally balanced coil cleaner is essential to extend the life of coils. This cleaner is available from Carrier Replacement Parts division as part number P902-0301 for a one gallon container, and part number P902-0305 for a five gallon container. It is recommended that all coils, including the standard copper tube aluminum fin, precoated fin, copper fin, or e-coated coils be cleaned with the Totaline environmentally balanced coil cleaner as described below. Coil cleaning should be part of the unit’s regularly scheduled maintenance procedures to ensure long life of the coil. Failure to clean the coils may result in reduced durability in the environment. Avoid the use of:

• coil brighteners

• acid cleaning prior to painting

• high pressure washers

• poor quality water for cleaning

Totaline environmentally balanced coil cleaner is non-flammable, hypoallergenic, nonbacterial, and a USDA accepted biodegradable agent that will not harm the coil or surrounding components such as electrical wiring, painted metal surfaces, or insulation. Use of non-recommended coil cleaners is strongly discouraged since coil and unit durability could be affected.

Totaline Environmentally

Balanced Coil Cleaner Applica-

tion Equipment

•21/2 gallon garden sprayer

• Water rinse with low velocity spray nozzle

CAUTION

Harsh chemicals, household bleach or acid or basic cleaners should not be used to clean outdoor or indoor coils of any kind. These cleaners can be very difficult to rinse out of the coil and can accelerate corrosion at the fin/tube interface where dissimilar materials are in contact. If there is dirt below the surface of the coil, use the Totaline environmentally balanced coil cleaner as described above.

CAUTION

High velocity water from a pressure washer, garden hose, or compressed air should never be used to clean a coil. The force of the water or air jet will bend the fin edges and increase airside pressure drop. Reduced unit performance or nuisance unit shutdown may occur.

Totaline Environmentally

Balanced Coil Cleaner Applica-

tion Instructions

1. Proper eye protection such as safety glasses is recommended during mixing and application.

2. Remove all surface loaded fibers and dirt with a vacuum cleaner as described above.

3. Thoroughly wet finned surfaces with clean water and a low velocity garden hose, being careful not to bend fins.

4. Mix Totaline environmentally balanced coil cleaner in

a 2

/2 gallon garden sprayer according to the instructions included with the cleaner. The optimum solution temperature is 100 F (37.8 C).

NOTE: Do NOT

USE water in excess of 130 F (54.4 C), as the

enzymatic activity will be destroyed.

5. Thoroughly apply Totaline environmentally balanced coil cleaner solution to all coil surfaces including finned area, tube sheets and coil headers.

6. Hold garden sprayer nozzle close to finned areas and apply cleaner with a vertical, up-and-down motion. Avoid spraying in horizontal pattern to minimize potential for fin damage.

7. Ensure cleaner thoroughly penetrates deep into finned areas.

8. Interior and exterior finned areas must be thoroughly cleaned.

9. Finned surfaces should remain wet with cleaning solution for 10 minutes.

10. Ensure surfaces are not allowed to dry before rinsing. Reapply cleaner as needed to ensure 10-minute saturation is achieved.

11. Thoroughly rinse all surfaces with low velocity clean water using downward rinsing motion of water spray nozzle. Protect fins from damage from the spray nozzle.

Condenser Fans — A formed metal mount bolted to

the coil caps supports each fan and motor assembly. A shroud and a wire grille provide protection from the rotating fan. See Fig. 59. To remove the fan a special puller (RCD part no. 30RB680082) can be used. The fan utilizes a set screw and does not require the use of retaining compound in the keyway. The fan can be removed without the puller, but its use eases disassembly. The exposed end of the fan motor shaft is protected from weather by grease. If fan motor must be removed for service or replacement, re-grease the fan shaft. The fan needs to be positioned fully down against the step on the motor shaft. Apply blue thread locker (Loctite 243) to the threads of both the axial bolt and the set screw. Install the thick washer and M8 axial bolt; do not fully tighten. Install set screw and tighten to 16 ± 2 ft-lbs (21.7 ± 2.7 Nm). Torque the axial bolt to 24 ± 2 ft-lbs (32.5 ± 2.7 Nm). Reinstall shroud and wire grille.

Page 63

Refrigerant Circuit

LEAK TESTING — Units are shipped with complete operating charge of refrigerant R-134a (see Physical Data tables supplied in the 30XV installation instructions) and should be under sufficient pressure to conduct a leak test. If there is no pressure in the system, introduce enough nitrogen to search for the leak. Repair the leak using good refrigeration practices. After leaks are repaired, system must be evacuated and dehydrated.

REFRIGERANT CHARGE — Refer to Physical Data tables supplied in the 30XV installation instructions. Immediately ahead of filter drier in each circuit is a factory-installed liquid line service valve. Each valve has a

/4-in. access connection

for charging liquid refrigerant. Charging with Unit Off and Evacuated

— Close liquid line service valve before charging. Weigh in charge shown on unit nameplate. Open liquid line service valve; start unit and allow it to run several minutes fully loaded. Check for a clear sight glass. Be sure clear condition is liquid and not vapor.

Charging with Unit Running

— If charge is to be added while unit is operating, all condenser fans and compressors must be operating. It may be necessary to block condenser coils at low ambient temperatures to raise condensing pressure to approximately 198 psig (1365 kPa) to turn all condenser fans on. Do not totally block a coil to do this. Partially block all coils in uniform pattern. Charge each circuit until sight glass shows clear liquid, and has a liquid line temperature of 103 F (39 C).

Add 3 to 5 lb (1.36 to 2.27 kg), depending on unit size andcoil type, of liquid charge into the fitting located on the tube entering the evaporator. This fitting is located between the electronic expansion valve (EXV) and the evaporator.

Allow the system to stabilize and then recheck the liquid temperature. If needed, add additional liquid charge, 3 to 5 lb at a time, allowing the system to stabilize between each charge addition. Slowly add charge as the sight glass begins to clear to avoid overcharging.

IMPORTANT: When adjusting refrigerant charge, circulate fluid through evaporator continuously to prevent freezing and possible damage to the evaporator. Do not overcharge, and never charge liquid into the low-pressure side of system.

Safety Devices — The 30XV chillers contain many

safety devices and protection logic built into the electronic control. Following is a description of the major safeties.

COMPRESSOR PROTECTION Motor Overload

logic protect each compressor against overcurrent.

All compressors have factory-installed high-pressure switches. See Table 39. Each high-pressure switch is connected directly to its associated VFD (terminals 12 and 37). If the switch opens during operation, the compressor will be shut down. Manual reset of the high pressure switch, VFD, and the control is required to restart the compressor.

Table 39 — High-Pressure Switch Settings

UNIT 30XV 323.5 + 0.0 –14.0 2230 + 0.0 –14.0

OIL SEPARATOR HEATERS — Each oil separator circuit has a heater mounted on the side of the vessel. The heater is de-energized any time the compressor is on. If the compressor is off and outdoor-air temperature (OAT) is greater than 100 F (37.8 C) the heater is de-energized. The heater will also be de-energized if OAT – SST > 30 F (16.7 C) and the OAT –LWT > 30 F (16.7 C).

— The compressor VFD fuses and drive

SWITCH SETTING

psig kPa

Relief Devices — Fusible plugs are located in each cir-

cuit between the condenser and the liquid line shutoff valve. PRESSURE RELIEF VALVES — Valves are installed in

each circuit and are located on the evaporators and oil separators. These valves are designed to relieve if an abnormal pressure condition arises. Relief valves on all evaporators relieve at 220 psig (1517 kPa). Relief valves on oil separators relieve at 350 psig (2413 kPa). These valves should not be capped. If a valve relieves, it should be replaced. If the valve is not replaced, it may relieve at a lower pressure, or leak due to trapped dirt from the system which may prevent resealing. See Table 40. Some local building codes require that relieved gases be exhausted to a specific location. This connection allows conformance to this requirement.

Table 40 — Relief Valve Connection Specifications

LOCATION CONNECTION SIZES

Oil Separator 3/8 SAE Flare

Evaporator 3/4 in. NPT Female

Inspection and Maintenance chiller protect the system against the potentially dangerous effects of overpressure. To ensure against damage to the equipment and possible injury to personnel, these devices must be kept in peak operating condition. As a minimum, the following maintenance is required:

1. At least once a year, disconnect the vent piping at the valve outlet if equipped. Inspect the vent piping for corrosion, a restriction or blockage. If any is found, clean or replace the affected vent piping.

2. Carefully inspect the valve body and mechanism for any evidence of internal corrosion or rust, dirt, scale, leakage, etc. If corrosion or foreign material is found, do not attempt to repair or recondition; replace the valve.

3. If the chiller is installed in a corrosive atmosphere or the relief valves are vented into a corrosive atmosphere, inspect relief valves and piping at more frequent intervals.

Variable Frequency Drives (VFDs) — The 30XV

units with Greenspeed frequency drives (VFDs) to control the compressors and condenser fans. The Danfoss VLT* HVAC drives each include an LCD user interface display. However, all necessary functions and statuses can be accessed from within the Touch Pilot™ menus. The VFDs are configured through the Touch Pilot controls, and parameters should not be changed manually.

COMPRESSOR DRIVES — Each unit is equipped with two VFDs to control the compressor operation, one for each circuit. The VFDs vary the operating speed of the compressors by changing the input power frequency over a programmed range. The compressor VFDs should not be operated below minimum programmed frequency, to ensure adequate oil return on the unit. When looking at the end of the unit, the Ckt A drive is closer to the control panel. See Fig. 60 for compressor VFD locations.

For chillers 140-325 tons, the VFDs are equipped with an aluminum enclosure to protect the drive from outdoor conditions. The cover must be removed to access the LCD user interface display or to service the drive. The cover is secured with 6 screws. See Fig. 61 for details on how to remove or reinstall the drive cover.

— The relief valves on this

intelligence are equipped with variable

Page 64

Fig. 60 — VFD Compressor Locations

CIRCUIT A

30XV140-200

30XV225-325

COMPRESSOR VFD

CIRCUIT B COMPRESSOR VFD

CIRCUIT A COMPRESSOR VFD

Page 65

CAUTION

2 SCREWS SECURE COVER AT TOP

2 SCREWS SECURE COVER AT EACH SIDE

a30-5878

Fig. 61 — Compressor VFD Cover Attachment

If the compressor VFD enclosure is removed for service it MUST be reinstalled to protect the drive from water intrusion. If the cover is not properly installed the VFD will not be covered under warranty.

CONDENSER FAN DRIVES — Chillers with M or H in the 10th position of the model number or with the Low Ambient option will have condenser fans on each circuit which are controlled by one or two VFDs. The fans on each circuit all operate together at the same preprogrammed frequency. Tables 41-43 show which condenser fans are controlled by each drive. See Tables 41-43 for typical fan VFD arrangement. See Fig. 62 for fan VFD location.

Page 66

Table 41 — Condenser Fan Drive Arrangement, Standard Tier

Control Box End

FM A1

FM A2

FM A3

FM A4

FM B3

FM B4

FM B1

FM B2

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM B5

FM B3

FM B4

FM B1

FM B2

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM B3

FM B4

FM B1

FM B2

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM B5

FM B6

FM B3

FM B4

FM B1

FM B2

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM A7

FM B7

FM B5

FM B6

FM B3

FM B4

FM B1

FM B2

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM A7

FM A8

FM B7

FM B8

FM B5

FM B6

FM B3

FM B4

FM B1

FM B2

CIRCUIT

FAN STAGE A12345678

CONTACTOR # FC A1 FC A2 FC A3 FC A4

FAN POSITION FMA1 FMA2 FMA3 FMA4

FAN STAGE B12345678

CONTACTOR # FC B1 FC B2 FC B3 FC B4

FAN POSITION FMB1 FMB2 FMB3 FMB4

FAN STAGE A12345678

CONTACTOR # FC A1 FC A2 FC A3 FC A4 FC A5

FAN POSITION FMA1 FMA2 FMA3 FMA4 FMA5

FAN STAGE B12345678

CONTACTOR # FC B1 FC B2 FC B3 FC B4 FC B5

FAN POSITION FMB1 FMB2 FMB3 FMB4 FMB5

FAN STAGE A12345678

CONTACTOR # FC A1 FC A2 FC A3 FC A4 FC A5 FC A6

FAN POSITION FMA1 FMA2 FMA3 FMA4 FMA5 FMA6

FAN STAGE B12345678

CONTACTOR # FC B1 FC B2 FC B3 FC B4

FAN POSITION FMB1 FMB2 FMB3 FMB4

FAN STAGE A12345678

CONTACTOR # FC A1 FC A2 FC A3 FC A4 FC A5 FC A6

FAN POSITION FMA1 FMA2 FMA3 FMA4 FMA5 FMA6

FAN STAGE B12345678

CONTACTOR # FC B1 FC B2 FC B3 FC B4 FC B5 FC B6

FAN POSITION FMB1 FMB2 FMB3 FMB4 FMB5 FMB6

FAN STAGE A12345678

CONTACTOR # FC A1 FC A2 FC A3 FC A4 FC A5 FC A6 FC A7

FAN POSITION FMA1 FMA2 FMA3 FMA4 FMA5 FMA6 FMA7

FAN STAGE B12345678

CONTACTOR # FC B1 FC B2 FC B3 FC B4 FC B5 FC B6 FC B7

FAN POSITION FMB1 FMB2 FMB3 FMB4 FMB5 FMB6 FMB7

FAN STAGE A12345678

CONTACTOR # FC A1 FC A2 FC A3 FC A4 FC A5 FC A6 FC A7 FC A8

FAN POSITION FMA1 FMA2 FMA3 FMA4 FMA5 FMA6 FMA7 FMA8

FAN STAGE B12345678

CONTACTOR # FC B1 FC B2 FC B3 FC B4 FC B5 FC B6 FC B7 FC B8

FAN POSITION FMB1 FMB2 FMB3 FMB4 FMB5 FMB6 FMB7 FMB8

30XV140-180

30XV200

30XV225

30XV250-275

30XV300

30XV325

Page 67

Table 42 — Condenser Fan Drive Arrangement, Mid Tier

Control Box End

FM A1

FM A2

FM A3

FM A4

FM B3

FM B4

FM B1

FM B2

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM B5

FM B3

FM B4

FM B1

FM B2

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM B5

FM B6

FM B3

FM B4

FM B1

FM B2

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM A7

FM B5

FM B3

FM B4

FM B1

FM B2

30XV 140 (All Voltages)

VFD Designation A1

Fan Position FMA1 FMA2 FMA3 FMA4

VFD Designation B1

Fan Position FMB1 FMB2 FMB3 FMB4

30XV 160,180 (208/230V)

VFD Designation A2 A1

Fan Position FMA1 FMA2 FMA3 FMA4 FMA5

VFD Designation B2 B1

Fan Position FMB1 FMB2 FMB3 FMB4 FMB5

30XV 160,180 (380-575V)

VFD Designation A1

Fan Position FMA1 FMA2 FMA3 FMA4 FMA5

VFD Designation B1

Fan Position FMB1 FMB2 FMB3 FMB4 FMB5

30XV200 (208/230V)

VFD Designation A2 A1

Fan Position FMA1 FMA2 FMA3 FMA4 FMA5 FMA6

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM A7

FM B7

FM B5

FM B6

FM B3

FM B4

FM B1

FM B2

VFD Designation B2 B1

Fan Position FMB1 FMB2 FMB3 FMB4 FMB5 FMB6

30XV200 (380-575V)

VFD Designation A1

Fan Position FMA1 FMA2 FMA3 FMA4 FMA5 FMA6

VFD Designation B1

Fan Position FMB1 FMB2 FMB3 FMB4 FMB5 FMB6

30XV225 (380V-575V)

VFD Designation A1

Fan Position FMA1 FMA2 FMA3 FMA4 FMA5 FMA6 FMA7

VFD Designation B1

Fan Position FMB1 FMB2 FMB3 FMB4 FMB5

30XV250,275 (380-575V)

VFD Designation A1

Fan Position FMA1 FMA2 FMA3 FMA4 FMA5 FMA6 FMA7

VFD Designation B1

Fan Position FMB1 FMB2 FMB3 FMB4 FMB5 FMB6 FMB7

Page 68

Control

FM B4

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM A7

FM A8

FM B9

FM A9

FM B7

FM B8

FM B5

FM B6

FM B3

FM B2

FM B1

Box End

Table 42 — Condenser Fan Drive Arrangement, Mid Tier (cont)

30XV300 (380V-575V)

VFD

Designation

FM B7

FM B8

FM B6

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

FMA1 FMA2 FMA3 FMA4 FMA5 FMA6 FMA7 FMA8

FMA1 FMA2 FMA3 FMA4 FMA5 FMA6 FMA7 FMA8 FMA9

FMB1 FMB2 FMB3 FMB4 FMB5 FMB6 FMB7 FMB8 FMB9

A2 A1

B2 B1

30XV325 (380-575V)

A2 A1

B2 B1

Page 69

Control

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM B5

FM B6

FM B3

FM B4

FM B1

FM B2

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM A7

FM B7

FM B5

FM B6

FM B3

FM B4

FM B1

FM B2

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM A7

FM A8

FM B5

FM B6

FM B3

FM B4

FM B1

FM B2

Box End

FM A1

FM A2

FM A3

FM A4

Table 43 — Condenser Fan Drive Arrangement, High Tier

30XV140 (208/230V)

FM A5

FM B5

FM B3

FM B4

FM B1

FM B2

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

30XV160,180 (380-575V)

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

30XV200 (380-575V)

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

30XV160,180 (208/230V)

30XV200 (208/230V)

30XV225 (380-575V)

A2 A1

FMA1 FMA2 FMA3 FMA4 FMA5

B2 B1

FMB1 FMB2 FMB3 FMB4 FMB5

30XV140 (380-575V)

FMA1 FMA2 FMA3 FMA4 FMA5

FMB1 FMB2 FMB3 FMB4 FMB5

A2 A1

FMA1 FMA2 FMA3 FMA4 FMA5 FMA6

B2 B1

FMB1 FMB2 FMB3 FMB4 FMB5 FMB6

FMA1 FMA2 FMA3 FMA4 FMA5 FMA6

FMB1 FMB2 FMB3 FMB4 FMB5 FMB6

A2 A1

FMA1 FMA2 FMA3 FMA4 FMA5 FMA6 FMA7

B2 B1

FMB1 FMB2 FMB3 FMB4 FMB5 FMB6 FMB7

FMA1 FMA2 FMA3 FMA4 FMA5 FMA6 FMA7

FMB1 FMB2 FMB3 FMB4 FMB5 FMB6 FMB7

A2 A1

FMA1 FMA2 FMA3 FMA4 FMA5 FMA6 FMA7 FMA8

FMB1 FMB2 FMB3 FMB4 FMB5 FMB6

Page 70

Table 43 — Condenser Fan Drive Arrangement, High Tier (cont)

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM A7

FM A8

FM B7

FM B8

FM B5

FM B6

FM B3

FM B4

FM B1

FM B2

FM B4

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM A7

FM A8

FM A9

FM B9

FM B7

FM B8

FM B5

FM B6

FM B3

FM B2

FM B1

FM B6

FM B8

Control Box End

FM A1

FM A2

FM A3

FM A4

FM A5

FM A6

FM A7

FM A8

FM A9

FM A10

FM B9

FM B10

FM B7

FM B5

FM B4

FM B3

FM B2

FM B1

Fan VFD A1

Fan VFD B2

Fan VFD B1 Fan VFD A2

Fig. 62 — Fan VFD Location

30XV250, 275 (380V-575V)

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

VFD

Designation

Fan

Position

FMA1 FMA2 FMA3 FMA4 FMA5 FMA6 FMA7 FMA8

FMA1 FMA2 FMA3 FMA4 FMA5 FMA6 FMA7 FMA8 FMA9

FMB1 FMB2 FMB3 FMB4 FMB5 FMB6 FMB7 FMB8 FMB9

FMA1 FMA2 FMA3 FMA4 FMA5 FMA6 FMA7 FMA8 FMA9 FMA10

FMB1 FMB2 FMB3 FMB4 FMB5 FMB6 FMB7 FMB8 FMB9 FMB10

A2 A1

B2 B1

30XV300 (380-575V)

A2 A1

B2 B1

30XV325 (380-575V)

A2 A1

B2 B1

Page 71

VFD DISPLAY NAVIGATION

a30-5862

LEGEND

1—Graphical display with status lines 2—Menu keys and indicator lights 3—Navigation keys and indicator lights 4—Operation keys and indicator lights a—Status line b—Operator data lines c—Status messages

Fig. 63 — VFD Graphical Local Control Panel

a30-5857

Fig. 64 — Status Display I

a30-5935

Fig. 65 — Status Display II

IMPORTANT: The VFDs are configured through the Touch Pilot controls, and parameters should not be changed manually. This section is included for information and troubleshooting purposes only.

NOTE: The following instructions apply to the Danfoss VLT variable frequency drive (VFD).

The VFD can be operated in 2 ways:

• Graphical Local Control Panel (GLCP)

• RS-485 serial communication for PC connection Graphical Local Control Panel (GLCP)

— The LCD display

is divided into 4 functional groups:

1. Graphical display with Status lines

2. Menu keys and indicator lights (LEDs) — selecting mode, changing parameters and switching between display functions

3. Navigation keys and indicator lights (LEDs)

4. Operation keys and indicator lights (LEDs)

See Fig. 63.

when not in [Status] mode, or in case of an alarm or warning (alert).

b. The operator data line in the middle section shows

up to 5 variables with their related units, regardless of status. In the case of an alarm or warning, the warning is shown instead of the variables.

c. The status line in the bottom section always shows

the state of the VFD in Status mode.

The operator can toggle among 3 status read-out screens by pressing the Status key. Several values or measurements can be linked to each of the displayed operating variables. The values/measurements to be displayed can be defined via parameter 0-20 Display Line 1.1 Small, 0-21 Display Line 1.2 Small, 0-22 Display Line 1.3 Small, 0-23 Display Line 2 Large and 0-24 Display Line 3 Large. The settings are accessed by selecting QUICK MENU  Q3 Function Setups  Q3-1 General Settings  Q3-13 Display Settings. Each value/measurement readout parameter selected in 0-20 Display Line 1.1 Small to 0-24 Display Line 3 Large has its own scale and number of digits after a possible decimal point. Larger numeric values are displayed with fewer digits after the decimal point. For example, a current readout might be 5.25 A,15.2 A, or 105 A.

Status Display I is standard after start-up or initialization. Press [INFO] to obtain information about the value/measurement linked to the displayed operating variables 1.1, 1.2, 1.3, 2, and 3). See the operating variables shown in the display in Fig. 64. Variables 1.1, 1.2, and 1.3 are shown in small size. Variables 2 and 3 are shown in medium size.

The display is backlit with a total of 6 alpha-numeric lines. All data is displayed on the GLCP, which can show up to 5 operating variables while in Status mode.

The display lines (see items a-c in Fig. 63) function as follows:

a. The Status line at the top of the display shows VFD

status when in [Status] mode or up to 2 variables

Status Display II shows the operating variables 1.1, 1.2, 1.3 and 2. In the example shown in Fig. 65, Speed, Motor Current, Motor Power, and Frequency are selected as variables in the first and second lines. Variables 1.1, 1.2, and 1.3 are shown in small size. Variable 2 is shown in large size.

Page 72

Status Display III shows events and actions of the Smart

a30-5859

Fig. 66 — Status Display III

a30-5856

Fig. 67 — Indicator Lights

Logic Control. Figure 66 shows an example.

The operator can adjust the display brightness by pressing

Status and ▲ to darken the display or ▼ to lighten it.

Indicator lights (LEDs) indicate whether the unit is on and if

there are any warning or alarm conditions:

• Green LED (On): Control section is working. The On LED is activated when the VFD receives power from mains voltage, a DC bus terminal, or an external 24 V supply. At the same time, the back light is on.

•Yellow LED (Warn.): Indicates a warning.

• Flashing Red LED (Alarm): Indicates an alarm. The warning and/or alarm LEDs light up if certain threshold

values are exceeded. A status message and alarm text also appear on the control panel. See Fig. 67.

The menu keys below the display and indicator lights in-

clude Status, Quick Menu, Main Menu, and Alarm Log. The Status menu indicates the status of the frequency converter and/or the motor. Three display modes are available (see Fig. 64-66). Use the Status key for selecting mode of display or for changing back to display mode from the Quick Menu Mode, the Main Menu Mode, or the Alarm Log mode. The operator can also use the Status key to toggle between single or double read-out mode.

The Quick Menu key allows quick set-up of the frequency

converter. The most common HVAC functions can be programmed here. Menu options include:

• My Personal Menu

• Quick Set-up

• Function Set-up

• Changes Made

• Loggings

The Function Set-up option provides quick and easy access to all parameters required for most HVAC applications. Among other features it also includes parameters for selecting which

variables to display on the local control panel, digital preset speeds, scaling of analog references, closed loop single-zone and multi-zone applications, and specific functions related to fans, pumps and compressors.

The Quick Menu parameters can be accessed immediately unless a password has been created via 0-60 Main Menu Password, 0-61 Access to Main Menu w/o Password, 0-65 Personal Menu Password, or 0-66 Access to Personal Menu w/o Password. It is possible to switch directly between Quick Menu mode and Main Menu mode.

The Main Menu key is used for programming all parameters. These can be accessed immediately unless a password has been created via 0-60 Main Menu Password, 0-61 Access to Main Menu w/o Password, 0-65 Personal Menu Password, or 0-66 Access to Personal Menu w/o Password. For most HVAC applications it is not necessary to access the Main Menu parameters but instead use the Quick Menu. Quick Set-up and Function Set-up provides the simplest and quickest access to the typical required parameters.

It is possible to switch directly between Main Menu mode and Quick Menu mode. The parameter shortcut can be carried out by pressing the Main Menu key for 3 seconds. The parameter shortcut allows direct access to any parameter.

Press Alarm Log to display a list of the 10 latest alarms (numbered A1-A10). To obtain additional details about an alarm, press the navigation keys to reach the alarm number and press OK. Information is displayed about the condition of the frequency converter before it enters the alarm mode. The Alarm Log key also provides access to a Maintenance log.

At the middle part of the local control panel, the Back key reverts to the previous step or layer in the navigation structure. The Cancel key cancels the last change or command as long as the display has not changed. The Info Key displays information about a command, parameter, or function in any display window, providing detailed information when needed. The four arrow keys are used among menu options by moving the cursor in the direction indicated. Press OK to select a parameter marked by the cursor or to enable a parameter change.

Operation keys for local control are found at the bottom of the control panel (see Fig. 63). Hand On enables control of the frequency converter via the local control panel. Hand On also starts the motor, and it is possible to enter the motor speed data by means of the navigation keys. The key can be selected as [1] Enable or [0] Disable via 0-40 Hand On Key on the local control panel.

NOTE: External stop signals activated by means of control signals or a serial bus override a start command via the local control panel.

The Off key stops the connected motor. If no external stop function is selected and Off key is inactive, the motor can only be stopped by disconnecting the mains supply.

Auto On enables the frequency converter to be controlled via the control terminals and/or serial communication. When a start signal is applied on the control terminals and/or the bus, the frequency converter starts.

NOTE: An active HAND-OFF-AUTO signal via digital inputs has higher priority than the local control keys Hand On –Auto On.

The Reset key resets the frequency converter after an alarm (trip).

VFD STATUS — The current operating status and conditions of the VFDs can be viewed with the Touch Pilot™ controls.

Compressor VFD Status

— To view the operating status of the compressor VFDs, follow the Touch Pilot path: Main Menu  Maintenance Menu  VLT Drive Maintenance. This menu shows current operating conditions for both drives: Drive Power, Amps, Voltage, Speed, Frequency,

Page 73

Torque, DC Link Voltage, Heat Sink Temperature, Control Card Temperature, Heater Status, and Communication Status.

Fan VFD Status

— To view the operating status of the fan VFDs, follow the Touch Pilot path: Main Menu  Maintenance Menu Fan Drive Maintenance. This menu shows current operating conditions for both drives: Drive Power, Amps, Voltage, Speed, Frequency, Torque, DC Link Voltage, Heat Sink Temperature and Control Card Temperature. To view the communication status of the fan VFDs, use the TouchPilot (Main Menu  Maintenance Menu  Fan Drive Addressing).

Table 45 — Compressor VFD Parameters for 200 V/60 Hz Units, 30XV140-200

VFD CONFIGURATION TABLES — The configuration parameters for the VFDs are stored in the control system and are automatically sent to the drives when addressed. The parameters should not need to be changed, but are included as a reference for verification and troubleshooting. See Table 44 for compressor usage. See Tables 45-69 for compressor and fan VFD parameters.

Table 44 — Compressor Usage

30XV UNIT SIZE

140 - 200 06ZCE1 06ZCE1

225 06ZFC2 06ZCE1

250 - 325 06ZFC2 06ZFC2

COMPRESSOR MODELS

CKT A CKT B

PARAMETER

NUMBER

0-40 hand on button disabled 00000000 1-03 torque profile Compressor Torque 00000000 1-20 motor kW size dependent 97 97 97 97 97 97 97 97 1-22 motor volts motor dependent 200 200 200 200 200 200 200 200 1-23 motor frequency motor dependent 105 105 105 105 105 105 105 105 1-24 motor amperage size dependent 380 380 380 380 380 380 380 380 1-25 motor rpm size dependent 6240 6240 6240 6240 6240 6240 6240 6240 1-71 compressor start delay 0s 00000000 1-78 starting frequency 26hz 26 26 26 26 26 26 26 26 1-79 Comp start max time to trip 5s 55555555 1-80 function at stop coast 00000000 1-90 motor thermal protection 0 00000000 3-02 min ref 0 00000000 3-03 max reference size dependent 75 75 85 85 95 95 105 105 3-13 type reference remote 11111111 3-15 src ref#1 no function 00000000 3-16 src ref#2 no function 00000000 3-41 ramp up 100s 100 100 100 100 100 100 100 100 3-42 ramp down 100s 100 100 100 100 100 100 100 100 3-82 starting ramp time 3s 33333333 4-10 motor speed direct clockwise 00000000 4-12 motor speed low limit 26Hz 26 26 26 26 26 26 26 26 4-14 motor speed high limit 95Hz 75 75 85 85 95 95 105 105 4-16 torque limit size dependent 150 150 150 150 150 150 150 150 4-18 current limit size dependent 127 127 127 127 127 127 127 127 4-19 max output frequency size dependent 76 76 86 86 96 96 106 106

5-12 DI #27 Coast Inverse 22222222

5-19 DI#37 safe stop safe stop alarm 11111111

5-40[36] relay 1 control word bit 11 36 36 36 36 36 36 36 36

5-40[5] relay 2 running 55555555

8_01 control site digital & control word 00000000

8-02 source contrôle FC port=RS485 11111111 8-03 time out time 10s 10 10 10 10 10 10 10 10

8-04 time out function stop and trip 55555555 14-01 switching frequency 3kHz 44444444 14-03 overmodulation yes 11111111 14-10 main failure alarm 66666666 14-11 Mains voltage at Mains fault 160V 160 160 160 160 160 160 160 160 14-50 RFI Filter on 11111111 14-60 function at overtemp derate 11111111 14-61 inverter overload derate 11111111

PARAMETER DESCRIPTION SETTING DESCRIPTION

30XV140 30XV160 30XV180 30XV200

CKT A CKT B CKT A CKT B CKT A CKT B CKT A CKT B

Page 74

Table 46 — Compressor VFD Parameters for 380 V/60 Hz Units, 30XV140-225

PARAMETER

NUMBER

0-40 hand on button disabled 0000000000 1-03 torque profile Compressor Torque 0000000000 1-20 motor kW size dependent 97 97 97 97 97 97 97 97 160 97 1-22 motor volts motor dependent 380 380 380 380 380 380 380 380 380 380 1-23 motor frequency motor dependent 105 105 105 105 105 105 105 105 98 105 1-24 motor amperage size dependent 200 200 200 200 200 200 200 200 321 200 1-25 motor rpm size dependent 6240 6240 6240 6240 6240 6240 6240 6240 5830 6240 1-71 compressor start delay 0s 0000000000 1-78 starting frequency 26hz 26 26 26 26 26 26 26 26 26 26 1-79 Comp start max time to trip 5s 5555555555 1-80 function at stop coast 0000000000 1-90 motor thermal protection 0 0000000000 3-02 min ref 0 0000000000 3-03 max reference size dependent 75 75 85 85 95 95 105 105 83 93 3-13 type reference remote 1111111111 3-15 src ref#1 no function 0000000000 3-16 src ref#2 no function 0000000000 3-41 ramp up 100s 100 100 100 100 100 100 100 100 100 100 3-42 ramp down 100s 100 100 100 100 100 100 100 100 100 100 3-82 starting ramp time 3s 3333333333 4-10 motor speed direct clockwise 0000000000 4-12 motor speed low limit 26Hz 26 26 26 26 26 26 26 26 26 26 4-14 motor speed high limit 95Hz 75 75 85 85 95 95 105 105 83 93 4-16 torque limit size dependent 150 150 150 150 150 150 150 150 150 150 4-18 current limit size dependent 127 127 127 127 127 127 127 127 127 127 4-19 max output frequency size dependent 76 76 86 86 96 96 106 106 84 94

5-12 DI #27 Coast Inverse 2222222222

5-19 DI#37 safe stop safe stop alarm 1111111111

5-40[36] relay 1 control word bit 11 36 36 36 36 36 36 36 36 36 36

5-40[5] relay 2 running 5555555555

8_01 control site digital & control word 0000000000

8-02 source contrôle FC port=RS485 1111111111 8-03 time out time 10s 10 10 10 10 10 10 10 10 10 10

8-04 time out function stop and trip 5555555555 14-01 switching frequency 3kHz 4444444444 14-03 overmodulation yes 1111111111 14-10 main failure alarm 6666666666 14-11 Mains voltage at Mains fault 300V 300 300 300 300 300 300 300 300 300 300 14-50 RFI Filter on 1111111111 14-60 function at overtemp derate 1111111111 14-61 inverter overload derate 1111111111

PARAMETER

DESCRIPTION

SETTING

DESCRIPTION

30XV140 30XV160 30XV180 30XV200 30XV225

CKT A CKT B CKT A CKT B CKT A CKT B CKT A CKT B CKT A CKT B

Page 75

Table 47 — Compressor VFD Parameters for 380 V/60 Hz Units, 30XV250-325

PARAMETER

NUMBER

0-40 hand on button disabled 00000000 1-03 torque profile Compressor Torque 00000000 1-20 motor kW size dependent 160 160 160 160 160 160 160 160 1-22 motor volts motor dependent 380 380 380 380 380 380 380 380 1-23 motor frequency motor dependent 98 98 98 98 98 98 98 98 1-24 motor amperage size dependent 321 321 321 321 321 321 321 321 1-25 motor rpm size dependent 5830 5830 5830 5830 5830 5830 5830 5830 1-71 compressor start delay 0s 00000000 1-78 starting frequency 26hz 26 26 26 26 26 26 26 26 1-79 Comp start max time to trip 5s 55555555 1-80 function at stop coast 00000000 1-90 motor thermal protection 0 00000000 3-02 min ref 0 00000000 3-03 max reference size dependent 80 80 85 85 90 90 98 98 3-13 type reference remote 11111111 3-15 src ref#1 no function 00000000 3-16 src ref#2 no function 00000000 3-41 ramp up 100s 100 100 100 100 100 100 100 100 3-42 ramp down 100s 100 100 100 100 100 100 100 100 3-82 starting ramp time 3s 33333333 4-10 motor speed direct clockwise 00000000 4-12 motor speed low limit 26Hz 26 26 26 26 26 26 26 26 4-14 motor speed high limit 95Hz 80 80 85 85 90 90 98 98 4-16 torque limit size dependent 150 150 150 150 150 150 150 150 4-18 current limit size dependent 127 127 127 127 127 127 127 127 4-19 max output frequency size dependent 81 81 86 86 91 91 99 99

5-12 DI #27 Coast Inverse 22222222

5-19 DI#37 safe stop safe stop alarm 11111111

5-40[36] relay 1 control word bit 11 36 36 36 36 36 36 36 36

5-40[5] relay 2 running 55555555

8_01 control site digital & control word 00000000

8-02 source contrôle FC port=RS485 11111111 8-03 time out time 10s 10 10 10 10 10 10 10 10

8-04 time out function stop and trip 55555555 14-01 switching frequency 3kHz 44444444 14-03 overmodulation yes 11111111 14-10 main failure alarm 66666666 14-11 Mains voltage at Mains fault 300V 300 300 300 300 300 300 300 300 14-50 RFI Filter on 11111111 14-60 function at overtemp derate 11111111 14-61 inverter overload derate 11111111

PARAMETER DESCRIPTION SETTING DESCRIPTION

30XV250 30XV275 30XV300 30XV325

CKT A CKT B CKT A CKT B CKT A CKT B CKT A CKT B

Page 76

Table 48 — Compressor VFD Parameters for 460-575 V/60 Hz Units, 30XV140-225

PARAMETER

NUMBER

0-40 hand on button disabled 0000000000 1-03 torque profile Compressor Torque 0000000000 1-20 motor kW size dependent 97 97 97 97 97 97 97 97 160 97 1-22 motor volts motor dependent 460 460 460 460 460 460 460 460 460 460 1-23 motor frequency motor dependent 105 105 105 105 105 105 105 105 98 105 1-24 motor amperage size dependent 165 165 165 165 165 165 165 165 265 165 1-25 motor rpm size dependent 6240 6240 6240 6240 6240 6240 6240 6240 5830 6240 1-71 compressor start delay 0s 0000000000 1-78 starting frequency 26hz 26 26 26 26 26 26 26 26 26 26 1-79 Comp start max time to trip 5s 555555 555 1-80 function at stop coast 0000000000 1-90 motor thermal protection 0 0000000000 3-02 min ref 0 0000000000 3-03 max reference size dependent 75 75 85 85 95 95 105 105 83 93 3-13 type reference remote 1111111111 3-15 src ref#1 no function 0000000000 3-16 src ref#2 no function 0000000000 3-41 ramp up 100s 100 100 100 100 100 100 100 100 100 100 3-42 ramp down 100s 100 100 100 100 100 100 100 100 100 100 3-82 starting ramp time 3s 3333333333 4-10 motor speed direct clockwise 0000000000 4-12 motor speed low limit 26Hz 26 26 26 26 26 26 26 26 26 26 4-14 motor speed high limit 95Hz 75 75 85 85 95 95 105 105 83 93 4-16 torque limit size dependent 150 150 150 150 150 150 150 150 150 150 4-18 current limit size dependent 127 127 127 127 127 127 127 127 127 127 4-19 max output frequency size dependent 76 76 86 86 96 96 106 106 84 94

5-12 DI #27 Coast Inverse 2222222222

5-19 DI#37 safe stop safe stop alarm 1111111111

5-40[36] relay 1 control word bit 11 36 36 36 36 36 36 36 36 36 36

5-40[5] relay 2 running 5555555555

8_01 control site digital & control word 0000000000

8-02 source contrôle FC port=RS485 1111111111 8-03 time out time 10s 10 10 10 10 10 10 10 10 10 10

8-04 time out function stop and trip 5555555555 14-01 switching frequency 3kHz 4444444444 14-03 overmodulation yes 1111111111 14-10 main failure alarm 6666666666 14-11 Mains voltage at Mains fault 345V 345 345 345 345 345 345 345 345 345 345 14-50 RFI Filter on 1111111111 14-60 function at overtemp derate 1111111111 14-61 inverter overload derate 1111111111

PARAMETER DESCRIPTION SETTING DESCRIPTION

30XV140 30XV160 30XV180 30XV200 30XV225

CKT A CKT B CKT A CKT B CKT A CKT B CKT A CKT B CKT A CKT B

Page 77

Table 49 — Compressor VFD Parameters for 460-575 V/60 Hz Units, 30XV250-325

PARAMETER

NUMBER

0-40 hand on button disabled 00000000 1-03 torque profile Compressor Torque 00000000 1-20 motor kW size dependent 160 160 160 160 160 160 160 160 1-22 motor volts motor dependent 460 460 460 460 460 460 460 460 1-23 motor frequency motor dependent 98 98 98 98 98 98 98 98 1-24 motor amperage size dependent 265 265 265 265 265 265 265 265 1-25 motor rpm size dependent 5830 5830 5830 5830 5830 5830 5830 5830 1-71 compressor start delay 0s 00000000 1-78 starting frequency 26hz 26 26 26 26 26 26 26 26 1-79 Comp start max time to trip 5s 55555555 1-80 function at stop coast 00000000 1-90 motor thermal protection 0 00000000 3-02 min ref 0 00000000 3-03 max reference size dependent 80 80 85 85 90 90 98 98 3-13 type reference remote 11111111 3-15 src ref#1 no function 00000000 3-16 src ref#2 no function 00000000 3-41 ramp up 100s 100 100 100 100 100 100 100 100 3-42 ramp down 100s 100 100 100 100 100 100 100 100 3-82 starting ramp time 3s 33333333 4-10 motor speed direct clockwise 00000000 4-12 motor speed low limit 26Hz 26 26 26 26 26 26 26 26 4-14 motor speed high limit 95Hz 80 80 85 85 90 90 98 98 4-16 torque limit size dependent 150 150 150 150 150 150 150 150 4-18 current limit size dependent 127 127 127 127 127 127 127 127 4-19 max output frequency size dependent 81 81 86 86 91 91 99 99

5-12 DI #27 Coast Inverse 22222222

5-19 DI#37 safe stop safe stop alarm 11111111

5-40[36] relay 1 control word bit 11 36 36 36 36 36 36 36 36

5-40[5] relay 2 running 55555555

8_01 control site digital & control word 00000000

8-02 source contrôle FC port=RS485 11111111 8-03 time out time 10s 10 10 10 10 10 10 10 10

8-04 time out function stop and trip 55555555 14-01 switching frequency 3kHz 44444444 14-03 overmodulation yes 11111111 14-10 main failure alarm 66666666 14-11 Mains voltage at Mains fault 345V 345 345 345 345 345 345 345 345 14-50 RFI Filter on 11111111 14-60 function at overtemp derate 11111111 14-61 inverter overload derate 11111111

PARAMETER DESCRIPTION SETTING DESCRIPTION

30XV250 30XV275 30XV300 30XV325

CKT A CKT B CKT A CKT B CKT A CKT B CKT A CKT B

Page 78

Table 50 — Fan VFD Parameters, Standard Tier, 30XV140-180

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 10.4 — 10.4 — 10.4 — 10.4 — 10.4 — 10.4 — 10.4 — 10.4 — 1-22 MOTOR VOLTS V 200—200—380—380—460—460—575—575—

1-23

1-24

1-25

1-73 FLYING RESTART NO 0—0—0—0—0—0—0—0— 1-80 FUNCTION AT STOP COAST 0—0—0—0—0—0—0—0—

1-90

3-03

3-13 TYPE REFERENCE HAND/AUTO 0—0—0—0—0—0—0—0— 3-15 SRC REF#1 NO 0—0—0—0—0—0—0—0— 3-16 SRC REF#2 NO 0—0—0—0—0—0—0—0— 3-41 RAMP UP 20S 20—20—20—20—20—20—20—20— 3-42 RAMP DOWN 20S 20—20—20—20—20—20—20—20—

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 0—0—0—0—0—0—0—0—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 0—0—0—0—0—0—0—0—

14-01

24-90 24-91 0—0—0—0—0—0—0—0— 24-92 6.73 — 6.73 — 3.326 — 3.326 — 3.030 — 3.030 — 2.474 — 2.474 — 24-93 -0.0614 — -0.0614 — -0.0058 — -0.0058 — -0.0270 — -0.0270 — -0.0175 — -0.0175 — 24-94 11.961 — 11.961 — 7.722 — 7.722 — 5.004 — 5.004 — 5.178 — 5.178 — 24-95 24-96 0.0659 — 0.0659 — 0.0431 — 0.0431 — 0.0287 — 0.0287 — 0.0287 — 0.0287 — 24-97 0.2053 — 0.2053 — 1.237 — 1.237 — 0.8926 — 0.8926 — 0.8926 — 0.8926 — 24-98 0.1073 — 0.1073 — 0.0701 — 0.0701 — 0.0467 — 0.0467 — 0.0467 — 0.0467 — 24-99 34.65 — 34.65 — 28.635 — 28.635 — 25.24 — 25.24 — 22.24 — 22.24 —

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP

PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED LOW LIMIT [HZ]

MOTOR SPEED HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY [4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60—60—60—60—60—60—60—60—

A 51.6 — 51.6 — 26.0 — 26.0 — 21.6 — 21.6 — 17.2 — 17.2 —

RPM 1140 — 1140 — 1140 — 1140 — 1140 — 1140 — 1140 — 1140 —

NO OPERATION 0—0—0—0—0—0—0—0—

HZ 60—60—60—60—60—60—60—60—

CLOCKWISE 0—0—0—0—0—0—0—0—

5HZ 5—5—5—5—5—5—5—5—

60HZ 60—60—60—60—60—60—60—60—

150% 150—150—150—150—150—150—150—150—

110% 110—110—110—110—110—110—110—110—

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10—10—10—10—10—10—10—10—

STOP 2—2—2—2—2—2—2—2—

KHZ 6—6—6—6—6—6—6—6—

208/230V 380V 460V 575V

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

0—0—0—0—0—0—0—0—

1—1—1—1—1—1—1—1—

30XV140, 30XV160, 30XV180

Page 79

Table 51 — Fan VFD Parameters, Standard Tier, 30XV200

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 7.8 5.2 7.8 5.2 13.0 — 13.0 — 13.0 — 13.0 — 13.0 — 13.0 — 1-22 MOTOR VOLTS V 200 200 200 200 380 — 380 — 460 — 460 — 575 — 575 —

1-23

1-24

1-25

1-73 FLYING RESTART NO 00000—0—0—0—0—0— 1-80 FUNCTION AT STOP COAST 00000—0—0—0—0—0—

1-90

3-03

3-13 TYPE REFERENCE HAND/AUTO 00000—0—0—0—0—0— 3-15 SRC REF#1 NO 00000—0—0—0—0—0— 3-16 SRC REF#2 NO 00000—0—0—0—0—0— 3-41 RAMP UP 20S 20 20 20 20 20 — 20 — 20 — 20 — 20 — 20 — 3-42 RAMP DOWN 20S 20 20 20 20 20 — 20 — 20 — 20 — 20 — 20 —

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 00000—0—0—0—0—0—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 00000—0—0—0—0—0—

14-01

24-90 24-91 00000—0—0—0—0—0— 24-92 6.73 2.00 4.00 2.00 4.00 — 4.00 — 3.6 — 3.6 — 3.00 — 3.00 — 24-93 -0.0614 -0.0184 -0.0368 -0.0184 -0.0069 — -0.0069 — -0.0323 — -0.0323 — -0.021 — -0.021 — 24-94 11.961 3.588 7.177 3.588 0.9266 — 0.9266 — 6.005 — 6.005 — 6.21 — 6.21 — 24-95 24-96 0.0659 0.0330 0.0495 0.0330 0.0539 — 0.0539 — 0.036 — 0.036 — 0.036 — 0.036 — 24-97 0.2053 1.0265 1.5398 1.0265 1.546 — 1.546 — 1.1158 — 1.1158 — 1.1158 — 1.1158 — 24-98 0.1073 0.0540 0.0805 0.0540 0.0877 — 0.0877 — 0.058 — 0.058 — 0.058 — 0.058 — 24-99 34.65 26.33 30.49 26.33 31.29 — 31.29 — 27.05 — 27.05 — 27.05 — 27.05 —

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP

PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED LOW LIMIT [HZ]

MOTOR SPEED HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

A 38.7 25.8 38.7 25.8 32.5 — 32.5 — 27.0 — 27.0 — 21.5 — 21.5 —

RPM 1140 1140 1140 1140 1140 — 1140 — 1140 — 1140 — 1140 — 1140 —

NO OPERATION 00000—0—0—0—0—0—

HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

CLOCKWISE 00000—0—0—0—0—0—

5HZ 55555—5—5—5—5—5—

60HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

150% 150 150 150 150 150 — 150 — 150 — 150 — 150 — 150 —

110% 110 110 110 110 110 — 110 — 110 — 110 — 110 — 110 —

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 10 10 10 10 — 10 — 10 — 10 — 10 — 10 —

STOP 22222—2—2—2—2—2—

KHZ 66666—6—6—6—6—6—

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

208/230V 380V 460V 575V

00000—0—0—0—0—0—

11111—1—1—1—1—1—

30XV200

Page 80

Table 52 — Fan VFD Parameters, Standard Tier, 30XV225

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 15.6 — 10.4 — 15.6 — 10.4 — 15.6 — 10.4 — 1-22 MOTOR VOLTS V 380 — 380 — 460 — 460 — 575 — 575 —

1-23

1-24

1-25

1-73 FLYING RESTART NO 0—0—0—0—0—0— 1-80 FUNCTION AT STOP COAST 0—0—0—0—0—0—

1-90

3-03

3-13 TYPE REFERENCE HAND/AUTO 0—0—0—0—0—0— 3-15 SRC REF#1 NO 0—0—0—0—0—0— 3-16 SRC REF#2 NO 0—0—0—0—0—0— 3-41 RAMP UP 20S 20 — 20 — 20 — 20 — 20 — 20 — 3-42 RAMP DOWN 20S 20 — 20 — 20 — 20 — 20 — 20 —

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 0—0—0—0—0—0—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 0—0—0—0—0—0—

14-01

24-90 24-91 0—0—0—0—0—0— 24-92 4.989 — 3.326 — 4.504 — 3.030 — 3.711 — 2.474 — 24-93 -0.0087 — -0.0058 — -0.0404 — -0.0270 — -0.0262 — -0.0175 — 24-94 11.582 — 7.722 — 7.506 — 5.004 — 7.767 — 5.178 — 24-95 24-96 0.0647 — 0.0431 — 0.043 — 0.0287 — 0.043 — 0.0287 — 24-97 1.856 — 1.237 — 1.3389 — 0.8926 — 1.3389 — 0.8926 — 24-98 0.1052 — 0.0701 — 0.07 — 0.0467 — 0.07 — 0.0467 — 24-99 33.95 — 28.635 — 28.86 — 25.24 — 28.86 — 22.24 —

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED

LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 — 60 — 60 — 60 — 60 — 60 —

A 39.0 — 26.0 — 32.4 — 21.6 — 25.8 — 17.2 —

RPM 1140 — 1140 — 1140 — 1140 — 1140 — 1140 —

NO OPERATION 0—0—0—0—0—0—

HZ 60 — 60 — 60 — 60 — 60 — 60 —

CLOCKWISE 0—0—0—0—0—0—

5HZ 5—5—5—5—5—5—

60HZ 60 — 60 — 60 — 60 — 60 — 60 —

150% 150 — 150 — 150 — 150 — 150 — 150 —

110% 110 — 110 — 110 — 110 — 110 — 110 —

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 — 10 — 10 — 10 — 10 — 10 —

STOP 2—2—2—2—2—2—

KHZ 6—6—6—6—6—6—

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

0—0—0—0—0—0—

1—1—1—1—1—1—

380V 460V 575V

30XV225

Page 81

Table 53 — Fan VFD Parameters, Standard Tier, 30XV250-275

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 15.6 — 15.6 — 15.6 — 15.6 — 15.6 — 15.6 — 1-22 MOTOR VOLTS V 380 — 380 — 460 — 460 — 575 — 575 —

1-23

1-24

1-25

1-73 FLYING RESTART NO 0—0—0—0—0—0— 1-80 FUNCTION AT STOP COAST 0—0—0—0—0—0—

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 0—0—0—0—0—0—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 0—0—0—0—0—0—

14-01

24-90 24-91 0—0—0—0—0—0— 24-92 4.989 — 4.989 — 4.504 — 4.504 — 3.711 — 3.711 — 24-93 -0.0087 — -0.0087 — -0.0404 — -0.0404 — -0.0262 — -0.0262 — 24-94 11.582 — 11.582 — 7.506 — 7.506 — 7.767 — 7.767 — 24-95 24-96 0.0647 — 0.0647 — 0.043 — 0.043 — 0.043 — 0.043 — 24-97 1.856 — 1.856 — 1.3389 — 1.3389 — 1.3389 — 1.3389 — 24-98 0.1052 — 0.1052 — 0.07 — 0.07 — 0.07 — 0.07 — 24-99 33.95 — 33.95 — 28.86 — 28.86 — 28.86 — 28.86 —

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP

PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 — 60 — 60 — 60 — 60 — 60 —

A 39.0 — 39.0 — 32.4 — 32.4 — 25.8 — 25.8 —

RPM 1140 — 1140 — 1140 — 1140 — 1140 — 1140 —

NO OPERATION 0—0—0—0—0—0—

HZ 60 — 60 — 60 — 60 — 60 — 60 —

CLOCKWISE 0—0—0—0—0—0—

5HZ 5—5—5—5—5—5—

60HZ 60 — 60 — 60 — 60 — 60 — 60 —

150% 150 — 150 — 150 — 150 — 150 — 150 —

110% 110 — 110 — 110 — 110 — 110 — 110 —

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 — 10 — 10 — 10 — 10 — 10 —

STOP 2—2—2—2—2—2—

KHZ 6—6—6—6—6—6—

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

0—0—0—0—0—0—

1—1—1—1—1—1—

380V 460V 575V

30XV250, 30XV275

Page 82

Table 54 — Fan VFD Parameters, Standard Tier, 30XV300

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 18.2 — 18.2 — 18.2 — 18.2 — 18.2 — 18.2 — 1-22 MOTOR VOLTS V 380 — 380 — 460 — 460 — 575 — 575 —

1-23

1-24

1-25

1-73 FLYING RESTART NO 0—0—0—0—0—0— 1-80 FUNCTION AT STOP COAST 0—0—0—0—0—0—

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 0—0—0—0—0—0—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 0—0—0—0—0—0—

14-01

24-90 24-91 0—0—0—0—0—0— 24-92 6.00 — 6.00 — 5.4 — 5.4 — 4.5 — 4.5 — 24-93 -0.0104 — -0.0104 — -0.0485 — -0.0485 — -0.0315 — -0.0315 — 24-94 13.899 — 13.899 — 9.007 — 9.007 — 9.32 — 9.32 — 24-95 24-96 0.0755 — 0.0755 — 0.05 — 0.05 — 0.05 — 0.05 — 24-97 2.165 — 2.165 — 1.5621 — 1.5621 — 1.5621 — 1.5621 — 24-98 0.1227 — 0.1227 — 0.08 — 0.08 — 0.082 — 0.082 — 24-99 36.61 — 36.61 — 30.67 — 30.67 — 30.67 — 30.67 —

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED

LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 — 60 — 60 — 60 — 60 — 60 —

A 45.5 — 45.5 — 37.8 — 37.8 — 30.1 — 30.1 —

RPM 1140 — 1140 — 1140 — 1140 — 1140 — 1140 —

NO OPERATION 0—0—0—0—0—0—

HZ 60 — 60 — 60 — 60 — 60 — 60 —

CLOCKWISE 0—0—0—0—0—0—

5HZ 5—5—5—5—5—5—

60HZ 60 — 60 — 60 — 60 — 60 — 60 —

150% 150 — 150 — 150 — 150 — 150 — 150 —

110% 110 — 110 — 110 — 110 — 110 — 110 —

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 — 10 — 10 — 10 — 10 — 10 —

STOP 2—2—2—2—2—2—

KHZ 6—6—6—6—6—6—

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

0—0—0—0—0—0—

1—1—1—1—1—1—

380V 460V 575V

30XV300

Page 83

Table 55 — Fan VFD Parameters, Standard Tier, 30XV325

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 13.0 10.4 13.0 5.2 13.0 10.4 13.0 5.2 13.0 10.4 13.0 5.2 1-22 MOTOR VOLTS V 380 380 380 380 460 460 460 460 575 575 575 575

1-23

1-24

1-25

1-73 FLYING RESTART NO 000000000000 1-80 FUNCTION AT STOP COAST 000000000000

1-90

3-03

3-13 TYPE REFERENCE HAND/AUTO 000000000000 3-15 SRC REF#1 NO 000000000000 3-16 SRC REF#2 NO 000000000000 3-41 RAMP UP 20S 20 20 20 20 20 20 20 20 20 20 20 20 3-42 RAMP DOWN 20S 20 20 20 20 20 20 20 20 20 20 20 20

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 000000000000

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 000000000000

14-01

24-90 24-91 000000000000 24-92 4.00 3.326 4.00 1.00 3.6 3.030 3.6 0.9 3.00 2.474 3.00 1.00 24-93 -0.0069 -0.0058 -0.0069 -0.0017 -0.0323 -0.0270 -0.0323 -0.0081 -0.021 -0.0175 -0.021 -0.005 24-94 0.9266 7.722 0.9266 2.317 6.005 5.004 6.005 1.501 6.21 5.178 6.21 1.55 24-95 24-96 0.0539 0.0431 0.0539 0.0216 0.036 0.0287 0.036 0.014 0.036 0.0287 0.036 0.014 24-97 1.546 1.237 1.546 0.619 1.1158 0.8926 1.1158 0.4463 1.1158 0.8926 1.1158 0.4463 24-98 0.0877 0.0701 0.0877 0.0351 0.058 0.0467 0.058 0.023 0.058 0.0467 0.058 0.023 24-99 31.29 28.635 31.29 23.32 27.05 25.24 27.05 21.62 27.05 22.24 27.05 21.62

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP

PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED

LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 60 60 60 60 60 60 60 60 60 60 60

A 32.5 26.0 32.5 13.0 27.0 21.6 27.0 10.8 21.5 17.2 21.5 8.6

RPM 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140

NO OPERATION 000000000000

HZ 60 60 60 60 60 60 60 60 60 60 60 60

CLOCKWISE 000000000000

5HZ 555555555555

60HZ 60 60 60 60 60 60 60 60 60 60 60 60

150% 150 150 150 150 150 150 150 150 150 150 150 150

110% 110 110 110 110 110 110 110 110 110 110 110 110

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 10 10 10 10 10 10 10 10 10 10 10

STOP 222222222222

KHZ 666666666666

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

000000000000

111111111111

380V 460V 575V

30XV325

Page 84

Table 56 — Fan VFD Parameters, Mid Tier, 30XV140

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 10.4 — 10.4 — 10.4 — 10.4 — 10.4 — 10.4 — 10.4 — 10.4 — 1-22 MOTOR VOLTS V 200—200—380—380—460—460—575—575—

1-23

1-24

1-25

1-73 FLYING RESTART NO 0—0—0—0—0—0—0—0— 1-80 FUNCTION AT STOP COAST 0—0—0—0—0—0—0—0—

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 0—0—0—0—0—0—0—0—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 0—0—0—0—0—0—0—0—

14-01

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP

PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED LOW LIMIT [HZ]

MOTOR SPEED HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60—60—60—60—60—60—60—60—

A 51.6 — 51.6 — 26.0 — 26.0 — 21.6 — 21.6 — 17.2 — 17.2 —

RPM 1140 — 1140 — 1140 — 1140 — 1140 — 1140 — 1140 — 1140 —

NO OPERATION 0—0—0—0—0—0—0—0—

HZ 60—60—60—60—60—60—60—60—

CLOCKWISE 0—0—0—0—0—0—0—0—

5HZ 5—5—5—5—5—5—5—5—

60HZ 60—60—60—60—60—60—60—60—

150% 150—150—150—150—150—150—150—150—

110% 110—110—110—110—110—110—110—110—

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10—10—10—10—10—10—10—10—

STOP 2—2—2—2—2—2—2—2—

KHZ 6—6—6—6—6—6—6—6—

208/230V 380V 460V 575V

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

0—0—0—0—0—0—0—0—

1—1—1—1—1—1—1—1—

30XV140

Page 85

Table 57 — Fan VFD Parameters, Mid Tier, 30XV160-180

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 7.8 5.2 7.8 5.2 13.0 — 13.0 — 13.0 — 13.0 — 13.0 — 13.0 — 1-22 MOTOR VOLTS V 200 200 200 200 380 — 380 — 460 — 460 — 575 — 575 —

1-23

1-24

1-25

1-73 FLYING RESTART NO 00000—0—0—0—0—0— 1-80 FUNCTION AT STOP COAST 00000—0—0—0—0—0—

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 00000—0—0—0—0—0—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 00000—0—0—0—0—0—

14-01

24-90 24-91 00000—0—0—0—0—0— 24-92 4.00 2.00 4.00 2.00 4.00 — 4.00 — 3.6 — 3.6 — 3.00 — 3.00 — 24-93 -0.0368 -0.0184 -0.0368 -0.0184 -0.0069 — -0.0069 — -0.0323 — -0.0323 — -0.021 — -0.021 — 24-94 7.177 3.588 7.177 3.588 0.9266 — 0.9266 — 6.005 — 6.005 — 6.21 — 6.21 — 24-95 24-96 0.0495 0.0330 0.0495 0.0330 0.0539 — 0.0539 — 0.036 — 0.036 — 0.036 — 0.036 — 24-97 1.5398 1.0265 1.5398 1.0265 1.546 — 1.546 — 1.1158 — 1.1158 — 1.1158 — 1.1158 — 24-98 0.0805 0.0540 0.0805 0.0540 0.0877 — 0.0877 — 0.058 — 0.058 — 0.058 — 0.058 — 24-99 30.49 26.33 30.49 26.33 31.29 — 31.29 — 27.05 — 27.05 — 27.05 — 27.05 —

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP

PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED LOW LIMIT [HZ]

MOTOR SPEED HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

A 38.7 25.8 38.7 25.8 32.5 — 32.5 — 27.0 — 27.0 — 21.5 — 21.5 —

RPM 1140 1140 1140 1140 1140 — 1140 — 1140 — 1140 — 1140 — 1140 —

NO OPERATION 00000—0—0—0—0—0—

HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

CLOCKWISE 00000—0—0—0—0—0—

5HZ 55555—5—5—5—5—5—

60HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

150% 150 150 150 150 150 — 150 — 150 — 150 — 150 — 150 —

110% 110 110 110 110 110 — 110 — 110 — 110 — 110 — 110 —

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 10 10 10 10 — 10 — 10 — 10 — 10 — 10 —

STOP 22222—2—2—2—2—2—

KHZ 66666—6—6—6—6—6—

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

208/230V 380V 460V 575V

00000—0—0—0—0—0—

11111—1—1—1—1—1—

30XV160, 30XV180

Page 86

Table 58 — Fan VFD Parameters, Mid Tier, 30XV200

PARAMETER DESCRIPTION ITEM

1-20

1-22 MOTOR VOLTS V 200 200 200 200 380 — 380 — 460 — 460 — 575 — 575 —

1-23

1-24

1-25

1-73 FLYING RESTART NO 00000—0—0—0—0—0— 1-80 FUNCTION AT STOP COAST 00000—0—0—0—0—0—

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 00000—0—0—0—0—0—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 00000—0—0—0—0—0—

14-01

24-90 24-91 00000—0—0—0—0—0— 24-92 4.00 4.00 4.00 4.00 4.989 — 4.989 — 4.504 — 4.504 — 3.711 — 3.711 — 24-93 -0.0368 -0.0368 -0.0368 -0.0368 -0.0087 — -0.0087 — -0.0404 — -0.0404 — -0.0262 — -0.0262 — 24-94 7.177 7.177 7.177 7.177 11.582 — 11.582 — 7.506 — 7.506 — 7.767 — 7.767 — 24-95 24-96 0.0495 0.0495 0.0495 0.0495 0.0647 — 0.0647 — 0.043 — 0.043 — 0.043 — 0.043 — 24-97 1.5398 1.5398 1.5398 1.5398 1.856 — 1.856 — 1.3389 — 1.3389 — 1.3389 — 1.3389 — 24-98 0.0805 0.0805 0.0805 0.0805 0.1052 — 0.1052 — 0.07 — 0.07 — 0.07 — 0.07 — 24-99 30.49 30.49 30.49 30.49 33.95 — 33.95 — 28.86 — 28.86 — 28.86 — 28.86 —

MOTOR POWER

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED

LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

KW 7.8 7.8 7.8 7.8 15.6 — 15.6 — 15.6 — 15.6 — 15.6 — 15.6 —

HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

A 38.7 38.7 38.7 38.7 39.0 — 39.0 — 32.4 — 32.4 — 25.8 — 25.8 —

RPM 1140 1140 1140 1140 1140 — 1140 — 1140 — 1140 — 1140 — 1140 —

NO OPERATION 00000—0—0—0—0—0—

HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

CLOCKWISE 00000—0—0—0—0—0—

5HZ 55555—5—5—5—5—5—

60HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

150% 150 150 150 150 150 — 150 — 150 — 150 — 150 — 150 —

110% 110 110 110 110 110 — 110 — 110 — 110 — 110 — 110 —

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 10 10 10 10 — 10 — 10 — 10 — 10 — 10 —

STOP 22222—2—2—2—2—2—

KHZ 66666—6—6—6—6—6—

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

208/230V 380V 460V 575V

00000—0—0—0—0—0—

11111—1—1—1—1—1—

30XV200

Page 87

Table 59 — Fan VFD Parameters, Mid Tier, 30XV225

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 18.2 — 13.0 — 18.2 — 13.0 — 18.2 — 13.0 — 1-22 MOTOR VOLTS V 380 — 380 — 460 — 460 — 575 — 575 —

1-23

1-24

1-25

1-73 FLYING RESTART NO 0—0—0—0—0—0— 1-80 FUNCTION AT STOP COAST 0—0—0—0—0—0—

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 0—0—0—0—0—0—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 0—0—0—0—0—0—

14-01

24-90 24-91 0—0—0—0—0—0— 24-92 6.00 — 4.00 — 5.4 — 3.6 — 4.5 — 3.00 — 24-93 -0.0104 — -0.0069 — -0.0485 — -0.0323 — -0.0315 — -0.021 — 24-94 13.899 — 0.9266 — 9.007 — 6.005 — 9.32 — 6.21 — 24-95 24-96 0.0755 — 0.0539 — 0.05 — 0.036 — 0.05 — 0.036 — 24-97 2.165 — 1.546 — 1.5621 — 1.1158 — 1.5621 — 1.1158 — 24-98 0.1227 — 0.0877 — 0.08 — 0.058 — 0.082 — 0.058 — 24-99 36.61 — 31.29 — 30.67 — 27.05 — 30.67 — 27.05 —

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP

PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 — 60 — 60 — 60 — 60 — 60 —

A 45.5 — 32.5 — 37.8 — 27.0 — 30.1 — 21.5 —

RPM 1140 — 1140 — 1140 — 1140 — 1140 — 1140 —

NO OPERATION 0—0—0—0—0—0—

HZ 60 — 60 — 60 — 60 — 60 — 60 —

CLOCKWISE 0—0—0—0—0—0—

5HZ 5—5—5—5—5—5—

60HZ 60 — 60 — 60 — 60 — 60 — 60 —

150% 150 — 150 — 150 — 150 — 150 — 150 —

110% 110 — 110 — 110 — 110 — 110 — 110 —

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 — 10 — 10 — 10 — 10 — 10 —

STOP 2—2—2—2—2—2—

KHZ 6—6—6—6—6—6—

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

0—0—0—0—0—0—

1—1—1—1—1—1—

380V 460V 575V

30XV225

Page 88

Table 60 — Fan VFD Parameters, Mid Tier, 30XV250-275

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 18.2 — 18.2 — 18.2 — 18.2 — 18.2 — 18.2 — 1-22 MOTOR VOLTS V 380 — 380 — 460 — 460 — 575 — 575 —

1-23

1-24

1-25

1-73 FLYING RESTART NO 0—0—0—0—0—0— 1-80 FUNCTION AT STOP COAST 0—0—0—0—0—0—

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 0—0—0—0—0—0—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 0—0—0—0—0—0—

14-01

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED

LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 — 60 — 60 — 60 — 60 — 60 —

A 45.5 — 45.5 — 37.8 — 37.8 — 30.1 — 30.1 —

RPM 1140 — 1140 — 1140 — 1140 — 1140 — 1140 —

NO OPERATION 0—0—0—0—0—0—

HZ 60 — 60 — 60 — 60 — 60 — 60 —

CLOCKWISE 0—0—0—0—0—0—

5HZ 5—5—5—5—5—5—

60HZ 60 — 60 — 60 — 60 — 60 — 60 —

150% 150 — 150 — 150 — 150 — 150 — 150 —

110% 110 — 110 — 110 — 110 — 110 — 110 —

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 — 10 — 10 — 10 — 10 — 10 —

STOP 2—2—2—2—2—2—

KHZ 6—6—6—6—6—6—

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

0—0—0—0—0—0—

1—1—1—1—1—1—

380V 460V 575V

30XV250, 30XV275

Page 89

Table 61 — Fan VFD Parameters, Mid Tier, 30XV300

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 13.0 10.4 13.0 5.2 13.0 10.4 13.0 5.2 13.0 10.4 13.0 5.2 1-22 MOTOR VOLTS V 380 380 380 380 460 460 460 460 575 575 575 575

1-23

1-24

1-25

1-73 FLYING RESTART NO 000000000000 1-80 FUNCTION AT STOP COAST 000000000000

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 000000000000

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 000000000000

14-01

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP

PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED

LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 60 60 60 60 60 60 60 60 60 60 60

A 32.5 26.0 32.5 13.0 27.0 21.6 27.0 10.8 21.5 17.2 21.5 8.6

RPM 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140

NO OPERATION 000000000000

HZ 60 60 60 60 60 60 60 60 60 60 60 60

CLOCKWISE 000000000000

5HZ 555555555555

60HZ 60 60 60 60 60 60 60 60 60 60 60 60

150% 150 150 150 150 150 150 150 150 150 150 150 150

110% 110 110 110 110 110 110 110 110 110 110 110 110

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 10 10 10 10 10 10 10 10 10 10 10

STOP 222222222222

KHZ 666666666666

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

000000000000

111111111111

380V 460V 575V

30XV300

Page 90

Table 62 — Fan VFD Parameters, Mid Tier, 30XV325

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 13.0 10.4 13.0 10.4 13.0 10.4 13.0 10.4 13.0 10.4 13.0 10.4 1-22 MOTOR VOLTS V 380 380 380 380 460 460 460 460 575 575 575 575

1-23

1-24

1-25

1-73 FLYING RESTART NO 000000000000 1-80 FUNCTION AT STOP COAST 000000000000

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 000000000000

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 000000000000

14-01

24-90 24-91 000000000000 24-92 4.00 3.326 4.00 3.326 3.6 3.030 3.6 3.030 3.00 2.474 3.00 2.474 24-93 -0.0069 -0.0058 -0.0069 -0.0058 -0.0323 -0.0270 -0.0323 -0.0270 -0.021 -0.0175 -0.021 -0.0175 24-94 0.9266 7.722 0.9266 7.722 6.005 5.004 6.005 5.004 6.21 5.178 6.21 5.178 24-95 24-96 0.0539 0.0431 0.0539 0.0431 0.036 0.0287 0.036 0.0287 0.036 0.0287 0.036 0.0287 24-97 1.546 1.237 1.546 1.237 1.1158 0.8926 1.1158 0.8926 1.1158 0.8926 1.1158 0.8926 24-98 0.0877 0.0701 0.0877 0.0701 0.058 0.0467 0.058 0.0467 0.058 0.0467 0.058 0.0467 24-99 31.29 28.635 31.29 28.635 27.05 25.24 27.05 25.24 27.05 22.24 27.05 22.24

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP

PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED

LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 60 60 60 60 60 60 60 60 60 60 60

A 32.5 26.0 32.5 26.0 27.0 21.6 27.0 21.6 21.5 17.2 21.5 17.2

RPM 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140

NO OPERATION 000000000000

HZ 60 60 60 60 60 60 60 60 60 60 60 60

CLOCKWISE 000000000000

5HZ 555555555555

60HZ 60 60 60 60 60 60 60 60 60 60 60 60

150% 150 150 150 150 150 150 150 150 150 150 150 150

110% 110 110 110 110 110 110 110 110 110 110 110 110

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 10 10 10 10 10 10 10 10 10 10 10

STOP 222222222222

KHZ 666666666666

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

000000000000

111111111111

380V 460V 575V

30XV325

Page 91

Table 63 — Fan VFD Parameters, High Tier, 30XV140

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 7.8 5.2 7.8 5.2 13.0 — 13.0 — 13.0 — 13.0 — 13.0 — 13.0 — 1-22 MOTOR VOLTS V 200 200 200 200 380 — 380 — 460 — 460 — 575 — 575 —

1-23

1-24

1-25

1-73 FLYING RESTART NO 00000—0—0—0—0—0— 1-80 FUNCTION AT STOP COAST 00000—0—0—0—0—0—

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 00000—0—0—0—0—0—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 00000—0—0—0—0—0—

14-01

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP

PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED LOW LIMIT [HZ]

MOTOR SPEED HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

A 38.7 25.8 38.7 25.8 32.5 — 32.5 — 27.0 — 27.0 — 21.5 — 21.5 —

RPM 1140 1140 1140 1140 1140 — 1140 — 1140 — 1140 — 1140 — 1140 —

NO OPERATION 00000—0—0—0—0—0—

HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

CLOCKWISE 00000—0—0—0—0—0—

5HZ 55555—5—5—5—5—5—

60HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

150% 150 150 150 150 150 — 150 — 150 — 150 — 150 — 150 —

110% 110 110 110 110 110 — 110 — 110 — 110 — 110 — 110 —

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 10 10 10 10 — 10 — 10 — 10 — 10 — 10 —

STOP 22222—2—2—2—2—2—

KHZ 66666—6—6—6—6—6—

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

208/230V 380V 460V 575V

00000—0—0—0—0—0—

11111—1—1—1—1—1—

30XV140

Page 92

Table 64 — Fan VFD Parameters, High Tier, 30XV160-180

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 7.8 7.8 7.8 7.8 15.6 — 15.6 — 15.6 — 15.6 — 15.6 — 15.6 — 1-22 MOTOR VOLTS V 200 200 200 200 380 — 380 — 460 — 460 — 575 — 575 —

1-23

1-24

1-25

1-73 FLYING RESTART NO 00000—0—0—0—0—0— 1-80 FUNCTION AT STOP COAST 00000—0—0—0—0—0—

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 00000—0—0—0—0—0—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 00000—0—0—0—0—0—

14-01

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED

LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

A 38.7 38.7 38.7 38.7 39.0 — 39.0 — 32.4 — 32.4 — 25.8 — 25.8 —

RPM 1140 1140 1140 1140 1140 — 1140 — 1140 — 1140 — 1140 — 1140 —

NO OPERATION 00000—0—0—0—0—0—

HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

CLOCKWISE 00000—0—0—0—0—0—

5HZ 55555—5—5—5—5—5—

60HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

150% 150 150 150 150 150 — 150 — 150 — 150 — 150 — 150 —

110% 110 110 110 110 110 — 110 — 110 — 110 — 110 — 110 —

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 10 10 10 10 — 10 — 10 — 10 — 10 — 10 —

STOP 22222—2—2—2—2—2—

KHZ 66666—6—6—6—6—6—

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

208/230V 380V 460V 575V

00000—0—0—0—0—0—

11111—1—1—1—1—1—

30XV160, 30XV180

Page 93

Table 65 — Fan VFD Parameters, High Tier, 30XV200

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 10.4 7.8 10.4 7.8 18.2 — 18.2 — 18.2 — 18.2 — 18.2 — 18.2 — 1-22 MOTOR VOLTS V 200 200 200 200 380 — 380 — 460 — 460 — 575 — 575 —

1-23

1-24

1-25

1-73 FLYING RESTART NO 00000—0—0—0—0—0— 1-80 FUNCTION AT STOP COAST 00000—0—0—0—0—0—

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 00000—0—0—0—0—0—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 00000—0—0—0—0—0—

14-01

24-90 24-91 00000—0—0—0—0—0— 24-92 6.73 4.00 6.73 4.00 6.00 — 6.00 — 5.4 — 5.4 — 4.5 — 4.5 — 24-93 -0.0614 -0.0368 -0.0614 -0.0368 -0.0104 — -0.0104 — -0.0485 — -0.0485 — -0.0315 — -0.0315 — 24-94 11.961 7.177 11.961 7.177 13.899 — 13.899 — 9.007 — 9.007 — 9.32 — 9.32 — 24-95 24-96 0.0659 0.0495 0.0659 0.0495 0.0755 — 0.0755 — 0.05 — 0.05 — 0.05 — 0.05 — 24-97 0.2053 1.5398 0.2053 1.5398 2.165 — 2.165 — 1.5621 — 1.5621 — 1.5621 — 1.5621 — 24-98 0.1073 0.0805 0.1073 0.0805 0.1227 — 0.1227 — 0.08 — 0.08 — 0.082 — 0.082 — 24-99 34.65 30.49 34.65 30.49 36.61 — 36.61 — 30.67 — 30.67 — 30.67 — 30.67 —

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP

PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

A 51.6 38.7 51.6 38.7 45.5 — 45.5 — 37.8 — 37.8 — 30.1 — 30.1 —

RPM 1140 1140 1140 1140 1140 — 1140 — 1140 — 1140 — 1140 — 1140 —

NO OPERATION 00000—0—0—0—0—0—

HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

CLOCKWISE 00000—0—0—0—0—0—

5HZ 55555—5—5—5—5—5—

60HZ 60 60 60 60 60 — 60 — 60 — 60 — 60 — 60 —

150% 150 150 150 150 150 — 150 — 150 — 150 — 150 — 150 —

110% 110 110 110 110 110 — 110 — 110 — 110 — 110 — 110 —

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 10 10 10 10 — 10 — 10 — 10 — 10 — 10 —

STOP 22222—2—2—2—2—2—

KHZ 66666—6—6—6—6—6—

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

208/230V 380V 460V 575V

00000—0—0—0—0—0—

11111—1—1—1—1—1—

30XV200

Page 94

Table 66 — Fan VFD Parameters, High Tier, 30XV225

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 10.4 10.4 15.6 — 10.4 10.4 15.6 — 10.4 10.4 15.6 — 1-22 MOTOR VOLTS V 380 380 380 — 460 460 460 — 575 575 575 —

1-23

1-24

1-25

1-73 FLYING RESTART NO 000—000—000— 1-80 FUNCTION AT STOP COAST 000—000—000—

1-90

3-03

3-13 TYPE REFERENCE HAND/AUTO 000—000—000— 3-15 SRC REF#1 NO 000—000—000— 3-16 SRC REF#2 NO 000—000—000— 3-41 RAMP UP 20S 20 20 20 — 20 20 20 — 20 20 20 — 3-42 RAMP DOWN 20S 20 20 20 — 20 20 20 — 20 20 20 —

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 000—000—000—

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 000—000—000—

14-01

24-90 24-91 000—000—000— 24-92 3.326 3.326 4.989 — 3.030 3.030 4.504 — 2.474 2.474 3.711 — 24-93 -0.0058 -0.0058 -0.0087 — -0.0270 -0.0270 -0.0404 — -0.0175 -0.0175 -0.0262 — 24-94 7.722 7.722 11.582 — 5.004 5.004 7.506 — 5.178 5.178 7.767 — 24-95 24-96 0.0431 0.0431 0.0647 — 0.0287 0.0287 0.043 — 0.0287 0.0287 0.043 — 24-97 1.237 1.237 1.856 — 0.8926 0.8926 1.3389 — 0.8926 0.8926 1.3389 — 24-98 0.0701 0.0701 0.1052 — 0.0467 0.0467 0.07 — 0.0467 0.0467 0.07 — 24-99 28.635 28.635 33.95 — 25.24 25.24 28.86 — 22.24 22.24 28.86 —

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED

LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 60 60 — 60 60 60 — 60 60 60 —

A 26.0 26.0 39.0 — 21.6 21.6 32.4 — 17.2 17.2 25.8 —

RPM 1140 1140 1140 — 1140 1140 1140 — 1140 1140 1140 —

NO OPERATION 000—000—000—

HZ 60 60 60 — 60 60 60 — 60 60 60 —

CLOCKWISE 000—000—000—

5HZ 555—555—555—

60HZ 60 60 60 — 60 60 60 — 60 60 60 —

150% 150 150 150 — 150 150 150 — 150 150 150 —

110% 110 110 110 — 110 110 110 — 110 110 110 —

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 10 10 — 10 10 10 — 10 10 10 —

STOP 222—222—222—

KHZ 666—666—666—

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

000—000—000—

111—111—111—

380V 460V 575V

30XV225

Page 95

Table 67 — Fan VFD Parameters, High Tier, 30XV250-275

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 13.0 10.4 13.0 5.2 13.0 10.4 13.0 5.2 13.0 10.4 13.0 5.2 1-22 MOTOR VOLTS V 380 380 380 380 460 460 460 460 575 575 575 575

1-23

1-24

1-25

1-73 FLYING RESTART NO 000000000000 1-80 FUNCTION AT STOP COAST 000000000000

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 000000000000

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 000000000000

14-01

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP

PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED

LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 60 60 60 60 60 60 60 60 60 60 60

A 32.5 26.0 32.5 13.0 27.0 21.6 27.0 10.8 21.5 17.2 21.5 8.6

RPM 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140

NO OPERATION 000000000000

HZ 60 60 60 60 60 60 60 60 60 60 60 60

CLOCKWISE 000000000000

5HZ 555555555555

60HZ 60 60 60 60 60 60 60 60 60 60 60 60

150% 150 150 150 150 150 150 150 150 150 150 150 150

110% 110 110 110 110 110 110 110 110 110 110 110 110

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 10 10 10 10 10 10 10 10 10 10 10

STOP 222222222222

KHZ 666666666666

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

000000000000

111111111111

380V 460V 575V

30XV250, 30XV275

Page 96

Table 68 — Fan VFD Parameters, High Tier, 30XV300

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 13.0 10.4 13.0 10.4 13.0 10.4 13.0 10.4 13.0 10.4 13.0 10.4 1-22 MOTOR VOLTS V 380 380 380 380 460 460 460 460 575 575 575 575

1-23

1-24

1-25

1-73 FLYING RESTART NO 000000000000 1-80 FUNCTION AT STOP COAST 000000000000

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 000000000000

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 000000000000

14-01

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP

PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED

LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 60 60 60 60 60 60 60 60 60 60 60

A 32.5 26.0 32.5 26.0 27.0 21.6 27.0 21.6 21.5 17.2 21.5 17.2

RPM 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140

NO OPERATION 000000000000

HZ 60 60 60 60 60 60 60 60 60 60 60 60

CLOCKWISE 000000000000

5HZ 555555555555

60HZ 60 60 60 60 60 60 60 60 60 60 60 60

150% 150 150 150 150 150 150 150 150 150 150 150 150

110% 110 110 110 110 110 110 110 110 110 110 110 110

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 10 10 10 10 10 10 10 10 10 10 10

STOP 222222222222

KHZ 666666666666

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

000000000000

111111111111

380V 460V 575V

30XV300

Page 97

Table 69 — Fan VFD Parameters, High Tier, 30XV325

PARAMETER DESCRIPTION ITEM

1-20 MOTOR POWER KW KW 15.6 10.4 15.6 10.4 15.6 10.4 15.6 10.4 15.6 10.4 15.6 10.4 1-22 MOTOR VOLTS V 380 380 380 380 460 460 460 460 575 575 575 575

1-23

1-24

1-25

1-73 FLYING RESTART NO 000000000000 1-80 FUNCTION AT STOP COAST 000000000000

1-90

3-03

4-10

4-12

4-14

4-16

4-18

5-12 DI#27 NO OPERATION 000000000000

8-01 CONTROL SITE

8-02 CONTROL SOURCE

8-03

8-04

14-00 PATTERN [AVM] 60AVM 000000000000

14-01

24-90 24-91 000000000000 24-92 4.989 3.326 4.989 3.326 4.504 3.030 4.504 3.030 3.711 2.474 3.711 2.474 24-93 -0.0087 -0.0058 -0.0087 -0.0058 -0.0404 -0.0270 -0.0404 -0.0270 -0.0262 -0.0175 -0.0262 -0.0175 24-94 11.582 7.722 11.582 7.722 7.506 5.004 7.506 5.004 7.767 5.178 7.767 5.178 24-95 24-96 0.0647 0.0431 0.0647 0.0431 0.043 0.0287 0.043 0.0287 0.043 0.0287 0.043 0.0287 24-97 1.856 1.237 1.856 1.237 1.3389 0.8926 1.3389 0.8926 1.3389 0.8926 1.3389 0.8926 24-98 0.1052 0.0701 0.1052 0.0701 0.07 0.0467 0.07 0.0467 0.07 0.0467 0.07 0.0467 24-99 33.95 28.635 33.95 28.635 28.86 25.24 28.86 25.24 28.86 22.24 28.86 22.24

MOTOR FREQUENCY

[HZ]

MOTOR INTENSITY

[A]

MOTOR SPEED

[RPM]

MOTOR TEMP PROTECTION

MAX REFERENCE

[HZ]

MOTOR SPEED

DIRECTION

MOTOR SPEED

LOW LIMIT [HZ]

MOTOR SPEED

HIGH LIMIT [HZ]

TORQUE LIMIT

[%]

CURRENT LIMIT

[%]

CONTROL TIMEOUT

TIME

CONTROL TIMEOUT

FUNCTION

SWITCHING

FREQUENCY

[4KHZ]

MISSING MOTOR

LOCKED ROTOR

HZ 60 60 60 60 60 60 60 60 60 60 60 60

A 39.0 26.0 39.0 26.0 32.4 21.6 32.4 21.6 25.8 17.2 25.8 17.2

RPM 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140

NO OPERATION 000000000000

HZ 60 60 60 60 60 60 60 60 60 60 60 60

CLOCKWISE 000000000000

5HZ 555555555555

60HZ 60 60 60 60 60 60 60 60 60 60 60 60

150% 150 150 150 150 150 150 150 150 150 150 150 150

110% 110 110 110 110 110 110 110 110 110 110 110 110

DIGITAL AND

CONTROL

WORD

FC PORT=

RS485

10S 10 10 10 10 10 10 10 10 10 10 10 10

STOP 222222222222

KHZ 666666666666

A1 A2 B1 B2 A1 A2 B1 B2 A1 A2 B1 B2

000000000000

111111111111

380V 460V 575V

30XV325

Page 98

VFD ALARM RESET — As long as communication is es-

Fig. 68 — Fan Drive Wiring

Fig. 69 — Compressor Drive Wiring

tablished between the Touch Pilot™ controls and the VFD, most alarms can be reset directly through the chiller control system.

VFD REPLACEMENT PROCEDURE — If required, VFDs can be replaced and programmed with the following procedures:

1. Disconnect power from unit. Wait a minimum of 20 minutes before continuing.

WARNING

After unit power is disconnected, wait at least 20 minutes for the VFD capacitors to discharge before opening drive. Failure to do so presents an electrical shock hazard and may result in personal injury.

2. Remove VFD weatherproof cover. Disconnect electrical power and communication connections from drive.

3. Unbolt and remove drive from support brackets, taking care to support drive at all times during the procedure. Larger drives are equipped with lifting lugs which must be used to support the load.

CAUTION

Use all proper rigging procedures and precautions when moving VFDs to avoid damage to the equipment.

4. Lift, position, and fasten replacement drive to support structure. Tighten all bolts securely.

5. Connect power, control, VFD enable, and high pressure switch wiring to drive. For wiring details for fan drives see Fig 68. Use the same knockout openings on new drive as on drive being replaced. For compressor drives, the high-pressure switch, VFD enable, and heater wiring also need to be connected. See Fig. 69 for wiring details for compressor drives. For compressor drives, remove the blank gland plate from the new drive and install the prepunched gland plate from the drive being replaced. Torque connections are shown in Table 70.

IMPORTANT: Ensure high pressure switch (HPS) and VFD enable wiring are connected to compressor VFD. Compressor will not run without HPS and VFD enable wiring connection.

Page 99

Table 70 — Power Connection Torque Values

Table 71 — VFD Drive Addresses

COMPRESSOR DRIVES

CARRIER PART

NO. HR46ZY001 HR46ZY002 HR46ZY003 HR46ZY004 HR46ZY005 HR46ZY006 HR46ZY007 HR46ZY008 HR46ZY009 HR46ZY010 HR46ZY011 HR46ZY012 HR46ZY013

HR46ZT002 HR46ZT003 HR46ZU002 HR46ZU003 HR46ZV001 HR46ZV002 HR46ZW001 HR46ZW002

LINE/MOTOR

POWER (in.-lb)

89 27

89 27 124 27 124 27 168 75 168 75 168 75 168 75 168 75 168 75 168 75 168 75 168 75

FAN DRIVES

16 27 16 27 16 27 16 27 22 27 22 27 22 27 22 27

GROUND (in.-lb)

6. Turn on power to the unit and allow the drive screen to become active. The drive will need to be manually addressed for the control system to export the correct parameters. Use this procedure to address the VFDs:

a. Using the display interface on the VFD drive, press

the Main Menu button twice. Navigate to menu item 8-30 and confirm that the LEN option is selected: Using the UP/DOWN arrows and OK button, follow the path: 8-** (Command Options)  8-3* (FC Port Settings)  8-30 (Protocol). If LEN is not selected, press the OK button and use the arrow keys to scroll through the options and select it. If no LEN option appears, LEN communication is not enabled on the drive. Follow the process described in the next section, Enable LEN Communication, and then complete the addressing procedure below.

b. Navigate to menu item 8-31 on the VFD display and

enter the address for the drive being configured: Follow the path: 8-** (Command Options)  8-3* (FC Port Settings)  8-31 (Address). Press the OK button and use the UP/DOWN arrow keys to select the drive address. See Table 71 to determine the correct address. For fan drives, see Fig. 68 for typical arrangement. For compressor drives, see Fig. 69 for typical location.

DRIVE ADDRESS Ckt A Compressor Ckt B Compressor Ckt A Fan Drive 1 Ckt A Fan Drive 2 Ckt B Fan Drive 1 Ckt B Fan Drive 2

LEGEND

VFD —Variable Frequency Drive

181 182 184 185 187 188

c. Turn the chiller power off and then on again. Cycling

the power will cause the control system to send the correct configuration data files to the new drive.

d. Verify that communication with the new drive has

been established. For fan drives follow the Touch Pilot™ path: Main Menu  Maintenance Menu  Fan Drive Addressing and confirm that the relevant Comm Fan Drive Xn status is Yes. For compressor drives follow the path: Main Menu  Maintenance Menu  VLT Drive Maintenance and confirm that the relevant Comm with Drive X status is Yes.

Enable LEN Communication

— If the replacement drive received does not have LEN as an option under menu item 8-30 on the VFD display, LEN will need to be manually enabled before the drive can be addressed. To enable the LEN communication option:

1. Enable access to the hidden Typecode Parameter by navigating to menu item 14-29 on the VFD display: press the Main Menu button and then follow the path 14-** (Special Functions)  14-2* (Reset Functions)  14-29 (Service Code). Set the 14-29 parameter to

00006100. Setting this parameter will enable access to hidden parameter 14-23 (Typecode Setting). Press OK.

2. Navigate to menu item 14-23: Press the BACK button and use the UP arrow to reach 14-23 (Typecode Setting). Press the OK button once. A cursor will appear on the value [00] just below the parameter number and name. Increase this value by pressing the UP key until the parameter has a value of [12] and the display shows “[nnn] SXXX {std. sw).” Press OK and use the UP/DOWN buttons to change the value to “[231 ] S009 {Special sw).” Press OK again. Press the UP button until the value is [20]. Press the OK button once, and change the displayed value to [1] (Save to EEPROM) using the arrow key. Press OK again.

3. The drive should display an alarm A251 New Type Code. Power down the drive by pressing the OFF button. Restart the drive with the AUTO ON button.

4. Proceed with the Addressing VFD instruction above to complete the configuration process.

LONG TERM STORAGE — If the unit is to be stored for long periods of time without use, special procedures must be performed to ensure the safe and efficient operation of the VFD capacitor banks. If the unit has been stored for more than 3 years without power applied to the drives, contact Carrier Service to obtain information and instructions for reforming the capacitor banks.

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MAINTENANCE

Recommended Maintenance Schedule —

following are only recommended guidelines. Jobsite conditions may dictate that maintenance tasks be performed more often than recommended.

Routine: For machines with e-coat condenser coils:

• Check condenser coils for debris; clean as necessary with Carrier approved coil cleaner.

• Periodic clean water rinse, especially in coastal and industrial applications.

Every month:

• Check condenser coils for debris; clean as necessary with Carrier approved coil cleaner.

• Check moisture indicating sight glass for possible refrigerant loss and presence of moisture.

Every 3 months:

• Check all refrigerant joints and valves for refrigerant leaks; repair as necessary.

• Check chilled water flow switch operation.

• Check all condenser fans for proper operation.

• Check oil filter pressure drop.

• Check oil separator heater operation.

• Check air filters located on the front panel of the compressor VFD drives by opening the plastic grilles; replace clogged filters. Filters may be cleaned with mild detergent soap and water.

• Check the back of all the compressor and fan drives for any debris. If present clean it off by blowing air from top to bottom.

Every 12 months:

• Check refrigerant charge.

• Check all electrical connections; tighten as necessary.

• Inspect all contactors and relays; replace as necessary.

• Check accuracy of thermistors; replace if greater than ±2° F (1.2° C) variance from calibrated thermometer.

• Check accuracy of transducers; replace if greater than ±5 psig (34.47 kPa) variance.

• Check to be sure that the proper concentration of antifreeze is present in the chilled water loop, if applicable.

• Verify that the chilled water loop is properly treated.

• Check refrigerant filter driers for excessive pressure drop; replace as necessary.

• Check chilled water strainers, clean as necessary.

• Check evaporator heater operation.

• Check oil heater operation.

• Check condition of condenser fan blades and that they are securely fastened to the motor shaft.

• Perform Service Test to confirm operation of all components.

• Check for excessive evaporator approach (Leaving Chilled Water Temperature – Saturated Suction Temperature) which may indicate fouling. Clean evaporator vessel if necessary.

• Obtain oil analysis; change as necessary.

The

TROUBLESHOOTING

mal or fault conditions occur. Alarms may cause either a circuit (Alert) or the whole machine (Alarm) to shut down. Alarms and Alerts are assigned codes as described in Table 72.

To view information about current and past alarms or to reset alarms, press the Alarm bell button in the top right corner of the Touch Pilot™ display. A solid gray icon is present during normal operation. The bell icon is red if there is an alarm or alert. A blinking red bell icon indicates that there is an alarm, but the unit is still running. A solid red highlighted bell icon indicates that the unit is shut down due to a detected fault.

CURRENT ALARMS — To access the current alarms view, press the Alarm bell button in the top right corner of the Touch Pilot display, and then select Current Alarms. This screen displays up to 10 current alarms with the time and date as well as a one line description of each alarm. See Table 72 for a list of possible alarms sorted alphabetically by description.

RESETTING ALARMS — The alarms can be reset without stopping the machine. The controller generates two types of alarms. Automatic reset alarms will reset without any intervention if the condition that caused the alarm corrects itself. Manual reset alarms require the service technician to check for the alarm cause and reset the alarm.

To reset any active alarms, press the Alarm button and then press the Reset Alarms icon . For Alarm Reset on line 1 select Yes and select the Force lightning bolt button . When resetting the alarm manually, the reset can be performed through the Touch Pilot display or remotely through the web interface (Reset Alarms menu).

Only logged-in users can access the Reset Alarms menu. The menu displays up to five alarm codes which are currently active on the unit, corresponding to the first five items displayed in the Current Alarms menu. Each alarm is also described by a numeric code. See Tables 73 and 74 for lists of alarms by code.

In the event of a power supply interrupt, the unit restarts automatically without the need for an external command. However, any faults active when the supply is interrupted are saved and may in certain cases prevent a circuit or a unit from restarting.

Before resetting any alarm, first determine the cause of the alarm and correct it. Do not reset the chiller at random without first investigating and correcting the cause(s) of the failure.

ALARM HISTORY — Once the cause of the alarm has been identified and corrected, it will be displayed in the alarm history. Information regarding resolved alarms is stored in the Alarm history menu, which is divided into 50 recent alarms and 50 recent major alarms. General alarms indicate pumps failure, transducers faults, network connection problems, etc. Major alarms indicate process failure.

To access the Alarm history menu, press the Alarm button and select Alarm Historic or Major Alarm Historic. The 50 most recent alarms of each type are stored in memory, and are replaced on a first-in first-out basis.

Alarms and Alerts —

stantly monitors the unit and generates warnings when abnor-

The integral control system con-

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