Carrier 30XV180, 30XV140, 30XV160, 30XV200, 30XV250 Controls, Start-up, Operation, Service And Troubleshooting Instructions

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Page 1

AquaForce

30XV140-500, Series B

Variable Speed Air-Cooled Liquid Chillers

with Greenspeed

Intelligence

and Carrier Controller

Controls, Start-Up, Operation, Service

and Troubleshooting

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 2

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Conventions Used in This Manual . . . . . . . . . . . . . . . 3

Abbreviations Used in This Manual . . . . . . . . . . . . . 3

CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Carrier Controller Display . . . . . . . . . . . . . . . . . . . . . 5

Carrier Controller Display User Interface . . . . . . . . . 5

Input/Output (SIOB) Boards . . . . . . . . . . . . . . . . . . . 15

Auxiliary Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Enable-Off-Remote Switch (SW1) . . . . . . . . . . . . . . 18

Emergency On/Off Switch (SW2) . . . . . . . . . . . . . . . 18

Energy Management Module (EMM) . . . . . . . . . . . . 18

Local Equipment Network . . . . . . . . . . . . . . . . . . . . 19

Board Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Control Module Communication . . . . . . . . . . . . . . . 19

Carrier Comfort Network® Interface . . . . . . . . . . . 19

External Sensor Wiring . . . . . . . . . . . . . . . . . . . . . . . 20

Remote Alarm and Alert Relays . . . . . . . . . . . . . . . . 20

CONFIGURATION (SOFTWARE) . . . . . . . . . . . . . . . . . 20

Carrier Controller Operation Configuration Tables . . 20

Carrier Controller Menu Tables . . . . . . . . . . . . . . . . 20

Machine Control Methods . . . . . . . . . . . . . . . . . . . . 25

Chilled Water Set Point Configuration . . . . . . . . . . 27

Evaporator Pump Control . . . . . . . . . . . . . . . . . . . . 31

Circuit/Compressor Staging and Loading . . . . . . . 32

Dual Chiller Control . . . . . . . . . . . . . . . . . . . . . . . . . 33

Ramp Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Temperature Reset . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Demand Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Machine Start Delay . . . . . . . . . . . . . . . . . . . . . . . . . 45

Fast Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Ice Storage Operation . . . . . . . . . . . . . . . . . . . . . . . . 46

Broadcast Configuration . . . . . . . . . . . . . . . . . . . . . 46

Alarm Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Daylight Savings Time Configuration . . . . . . . . . . . 47

Capacity Control Overrides . . . . . . . . . . . . . . . . . . . 47

Head Pressure Control (Variable Speed Fans) . . . . 48

Head Pressure Control (Fixed Speed Fans) . . . . . . 49

Sound Optimization . . . . . . . . . . . . . . . . . . . . . . . . . 49

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Actual Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Operating Limitations . . . . . . . . . . . . . . . . . . . . . . . .50

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . 55

Dual Chiller Sequence of Operation . . . . . . . . . . . . .55

Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

Economizer Assembly . . . . . . . . . . . . . . . . . . . . . . . . 64

Electronic Expansion Valve . . . . . . . . . . . . . . . . . . .64

Compressor Assembly . . . . . . . . . . . . . . . . . . . . . . . 67

Evaporator Service . . . . . . . . . . . . . . . . . . . . . . . . . .68

All Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

MCHX Condenser Coil:

Maintenance and Cleaning . . . . . . . . . . . . . . . . . 74

RTPF Condenser Coil:

Maintenance and Cleaning . . . . . . . . . . . . . . . . . 74

Condenser Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

High Static Fan Option . . . . . . . . . . . . . . . . . . . . . . . 75

Refrigerant Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Safety Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Relief Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Variable Frequency Drives . . . . . . . . . . . . . . . . . . . .76

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208

Recommended Maintenance Schedule . . . . . . . . .208

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . .208

Alarms and Alerts . . . . . . . . . . . . . . . . . . . . . . . . . .208

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

Electrical Schematics . . . . . . . . . . . . . . . . . . . . . . .226

Quick Test (Service Test) . . . . . . . . . . . . . . . . . . . .226

APPENDIX A — CARRIER CONTROLLER

DISPLAY TABLES . . . . . . . . . . . . . . . . . . . . . . . . . .249

APPENDIX B — CCN POINT TABLE . . . . . . . . . . . . . .281

APPENDIX C — LON POINT TABLE . . . . . . . . . . . . . .308

APPENDIX D — BACNET/MODBUS

TRANSLATOR POINTS . . . . . . . . . . . . . . . . . . . . .309

APPENDIX E — BACNET IP POINTS . . . . . . . . . . . . . .310

APPENDIX F — PIPING AND INSTRUMENTATION . .328 APPENDIX G — MAINTENANCE SUMMARY

AND LOG SHEETS . . . . . . . . . . . . . . . . . . . . . . . . .330

APPENDIX H — EVAPORATOR HEATER SENSOR

SET POINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .332

APPENDIX I — CARRIER CONTROLLER WEB AND

NETWORK INTERFACE PARAMETERS. . . . . . .333

APPENDIX J — FACTORY SUPPLIED PUMPS . . . . .336

Catalog No. 04-53300197-01 Printed in U.S.A. Form 30XV-3T Pg 1 6-19 Replaces: New

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

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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 (if compressor VFDs [variable frequency drives] are mounted external to control panel) or 40 minutes (if compressor VFDs are mounted internal to control panel) for the VFD capacitors to discharge before opening drive.

WARNING

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 system

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 neces-

sary. 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) without VFDs (units with “-”, “1”, “3”, or “5” in the 13th 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.

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.

CAUTION

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.

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GENERAL

This publication contains Controls, Operation, Start-Up, Service and Troubleshooting information for the 30XV140-500 air-cooled liquid chillers with Greenspeed electronic controls. See Table 1. The 30XV chillers are equipped with the Carrier Controller controls, electronic expansion valves, and variable speed fans and compressors.

Table 1 — Unit Sizes

UNIT NOMINAL CAPACITY (TONS) 30XV140 140 30XV160 160 30XV180 180 30XV200 200 30XV225 225 30XV250 250 30XV275 275 30XV300 300 30XV325 325 30XV350 350 30XV400 400 30XV450 450 30XV500 500

ABV — Actuated Ball Valve AI — Analog Input ANSI — American National Standards Institute AO — Analog Output ASHRAE — American Society of Heating, Refrigeration, and Air-Conditioning

AUX — Auxiliary (Board) AV — Analog Value AVM — Asynchronous Vector Modulation AWG — American Wire Gage BACnet — Building Automation and Controls Network BMS — Building Management System BUS TER — Bus Termination BV — Binary Value CB — Circuit Breaker CCN — Carrier Comfort Network CLR HTR — Cooler Heater CMD — Command COM — Communications COV — Change of Value CSR — Current Sensing Relay CWFS — Chilled Water Flow Switch DC — Direct Current DGT — Discharge Gas Temperature DI —Digital Input DNS — Domain Name Server DO — Digital Output DP — Discharge Pressure DPT — Discharge Pressure Transducer DSH — Discharge Superheat ECM — Electronically Commutated Motor ECO EXV — Economizer Electronic Expansion Valve ECO — Economizer ECT — Economizer Temperature EEPROM — Electronically Erasable Programmable Read-Only Memory EMM — Energy Management Module EOR — Enable-Off-Remote EPT — Economizer Pressure Transducer EWT — Entering Water Temperature EWTO — Entering Water Temperature Offset EXV — Electronic Expansion Valve FC — Fan Contactor FM —Fan Motor ft-lb — Foot-pounds FTP — File Transfer Protocol gal — Gallon GLCP — Graphical Local Control Panel gpm — gallons per minute HMI — Human Machine Interface HPS — High Pressure Switch HTTP — Hypertext Transfer Protocol HVAC — Heating, Ventilation and Air-Conditioning Hz —Hertz IGBT — Insultated Gate Bipolar Transistor in.-lb — Inch-pounds IP — Internet Protocol IR — Intrinsic Reporting kg — Kilograms kHz — Kilohertz kPa — Kilopascals

Engineers

Intelligence and

Conventions Used in This Manual

The following conventions for discussing configuration points for the Carrier Controller display will be used in this manual. The menu items are shown in this document as they appear on the Carrier Controller display. A path name for each item will show the user how to navigate through the Carrier Controller display to reach the desired configuration. The arrow symbol () in the path name represents touching the menu item on the screen of the Carrier Controller display. The path will be shown in bold and italics. See Appendix A for a complete list of Carrier Controller menu items and descriptions. The Carrier Comfort Network trols Network (BACnet)

(CCN) and Building Automation and Con-

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 following abbreviations are used in this manual:

1. BACnet is a registered trademark of ASHRAE (American Society of

Heating, Refrigerating, and Air-Conditioning Engineers).

kW — Kilowatt L —Liters L/s — Liters per second lb — Pounds LCD — Liquid Crystal Display LCP — Local Control Panel LED LEN — Local Equipment Network LIQT — Liquid Temperature LPT — Liquid Pressure Transducer LWT — Leaving Water Temperature mA — Milliamps MCHX — Microchannel Heat Exchanger mm — Millimeter MOP — Maximum operating temperature N/A — Not Applicable N-m — Newton-Meter NPT — National Pipe Thread OAT — Outdoor Air Temperature OP — Oil Pressure OPT — Oil Pressure Transducer PC — Personal Computer ppm — parts per million PSI — Pounds per square inch Psig — Pounds per square inch gauge PTC — Positive Temperature Coefficient PVC — Polyvinyl Chloride RCD — Replacement Components Division RFI — Radio Frequency Interference RNET — Communication Protocol RO — Read only rpm — revolutions per minute RTPF — Round Tube Plate Fin RW — Read/Write SAE — Society of Automotive Engineers SCT — Saturated Condensing Temperature* SDT — Saturated Discharge Temperature* SGT — Suction Gas Temperature SHD — Shield Wire on Shielded Cable SIOB — Standard Input/Output Board SLT — Saturated Liquid Temperature SP — Suction Pressure Spt — Setpoint SPT — Suction Pressure Transducer SST — Saturated Suction Temperature SSV — Suction Service Valve ST — Space temperature STPR — Stepper Motor SW1 — Switch 1 SW2 — Switch 2 TCP/IP — Transmission Control Protocol/Internet Protocol TL — Trend Log TS — Time Schedule UI — User Interface USB — Universal Serial Bus USDA — United States Department of Agriculture VFD — Variable Frequency Drive VI — Volume Index VPN — Virtual Private Network

*SCT and SDT are used interchangeably by software points.

— Light-Emitting Diode

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CONTROLS

The 30XV Air-Cooled Liquid Chillers contain the Carrier Controller 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 Carrier Controller module, Standard Input/Output boards, Emergency On/Off switch, and an Enable-Off-Remote Contact switch. Table 2 lists power schematics by unit size.

Table 2 — Control and Power Drawings

UNIT DESCRIPTION LOCATION

Typical Field Connections Wiring Schematic Fig. 90, pages 227-228

Power Wiring Schematic (Std) Fig. 91, page 229 Power Wiring Schematic (Mid) Fig. 95, page 235

30XV140

30XV160

30XV180

30XV200

30XV225

30XV250

30XV275

30XV300

Power Wiring Schematic (High) Fig. 96, page 236; Fig. 97, page 237

Communication Wiring Fig. 99, page 240

Control Wiring Schematics Fig. 100-101, pages 241-243

Component Arrangement Fig. 103, pages 246-247

Typical Field Connections Wiring Schematic Fig. 90, pages 227-228

Power Wiring Schematic (Std) Fig. 91, page 229 Power Wiring Schematic (Mid) Fig. 95, page 235; Fig. 97, page 237

Power Wiring Schematic (High) Fig. 96, page 236; Fig. 97, page 237

Communication Wiring Fig. 99, page 240

Control Wiring Schematics Fig. 100-101, pages 241-243

Component Arrangement Fig. 103, pages 246-247

Typical Field Connections Wiring Schematic Fig. 90, pages 227-228

Power Wiring Schematic (Std) Fig. 91, page 229 Power Wiring Schematic (Mid) Fig. 95, page 235; Fig. 97, page 237

Power Wiring Schematic (High) Fig. 96, page 236; Fig. 97, page 237

Communication Wiring Fig. 99, page 240

Control Wiring Schematics Fig. 100-101, pages 241-243

Component Arrangement Fig. 103, pages 246-247

Typical Field Connections Wiring Schematic Fig. 90, pages 227-228

Power Wiring Schematic (Std) Fig. 91, page 229 Power Wiring Schematic (Mid) Fig. 95, page 235; Fig. 97, page 237

Power Wiring Schematic (High) Fig. 96, page 236; Fig. 97, page 237

Communication Wiring Fig. 99, page 240

Control Wiring Schematics Fig. 100-101, pages 241-243

Component Arrangement Fig. 103, pages 246-247

Typical Field Connections Wiring Schematic Fig. 90, pages 227-228

Power Wiring Schematic (Std) Fig. 91, page 229 Power Wiring Schematic (Mid) Fig. 95, page 235

Power Wiring Schematic (High) Fig. 98, page 238-239

Communication Wiring Fig. 99, page 240

Control Wiring Schematics Fig. 100-101, pages 241-243

Component Arrangement Fig. 103, pages 246-247

Typical Field Connections Wiring Schematic Fig. 90, pages 227-228

Power Wiring Schematic (Std) Fig. 91, page 229 Power Wiring Schematic (Mid) Fig. 95, page 235

Power Wiring Schematic (High) Fig. 98, page 238-239

Communication Wiring Fig. 99, page 240

Control Wiring Schematics Fig. 100-101, pages 241-243

Component Arrangement Fig. 103, pages 246-247

Typical Field Connections Wiring Schematic Fig. 90, pages 227-228

Power Wiring Schematic (Std) Fig. 91, page 229 Power Wiring Schematic (Mid) Fig. 95, page 235

Power Wiring Schematic (High) Fig. 98, page 238-239

Communication Wiring Fig. 99, page 240

Control Wiring Schematics Fig. 100-101, pages 241-243

Component Arrangement Fig. 103, pages 246-247

Typical Field Connections Wiring Schematic Fig. 90, pages 227-228

Power Wiring Schematic (Std) Fig. 92, pages 230-231 Power Wiring Schematic (Mid) Fig. 98, page 238-239

Power Wiring Schematic (High) Fig. 98, page 238-239

Communication Wiring Fig. 99, page 240

Control Wiring Schematics Fig. 100-101, pages 241-243

Component Arrangement Fig. 103, pages 246-247

Page 5

Table 2 — Control and Power Drawings (cont)

UNIT DESCRIPTION LOCATION

Typical Field Connections Wiring Schematic Fig. 90, pages 227-228

Power Wiring Schematic (Std) Fig. 92, pages 230-231 Power Wiring Schematic (Mid) Fig. 98, page 238-239

30XV325

30XV350

30XV400

30XV450

30XV500

Carrier Controller Display

The Carrier Controller module is the HMI (Human Machine Interface) and 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” on page 13.

The Carrier Controller module continuously monitors input/ output channel information received from the SIOB (Standard Input/Output Board) and AUX (Auxiliary) board. The Carrier Controller module receives inputs from status and feedback switches, pressure transducers and thermistors. The Carrier Controller 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 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 Carrier Controller display. See Fig. 1 and 2 for component layout showing the display with field connections.

Power Wiring Schematic (High) Fig. 98, page 238-239

Communication Wiring Fig. 99, page 240

Control Wiring Schematics Fig. 100-101, pages 241-243

Component Arrangement Fig. 103, pages 246-247

Typical Field Connections Wiring Schematic Fig. 90, pages 227-228

Power Wiring Schematic (Std) Fig. 93, page 232-233 Power Wiring Schematic (Mid) Fig. 94, page 234

Power Wiring Schematic (High) Fig. 94, page 234

Communication Wiring Fig. 99, page 240

Control Wiring Schematics Fig. 100, 102, pages 241, 244-245

Component Arrangement Fig. 104, page 248

Typical Field Connections Wiring Schematic Fig. 90, pages 227-228

Power Wiring Schematic (Std) Fig. 93, page 232-233 Power Wiring Schematic (Mid) Fig. 94, page 234

Power Wiring Schematic (High) Fig. 94, page 234

Communication Wiring Fig. 99, page 240

Control Wiring Schematics Fig. 100, 102, pages 241, 244-245

Component Arrangement Fig. 104, page 248

Typical Field Connections Wiring Schematic Fig. 90, pages 227-228

Power Wiring Schematic (Std) Fig. 93, page 232-233 Power Wiring Schematic (Mid) Fig. 94, page 234

Power Wiring Schematic (High) Fig. 94, page 234

Communication Wiring Fig. 99, page 240

Control Wiring Schematics Fig. 100, 102, pages 241, 244-245

Component Arrangement Fig. 104, page 248

Typical Field Connections Wiring Schematic Fig. 90, pages 227-228

Power Wiring Schematic (Std) Fig. 93, page 232-233 Power Wiring Schematic (Mid) Fig. 94, page 234

Communication Wiring Fig. 99, page 240

Control Wiring Schematics Fig. 100, 102, pages 241, 244-245

Component Arrangement Fig. 104, page 248

Carrier Controller Display User Interface

The Carrier Controller display is the standard user interface on all 30XV chillers with Greenspeed cludes 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 Carrier

Controller is powered on. See Fig. 3. The Welcome Screen will automatically change to the Home

Screen when the controller has completed initialization.

HOME SCREEN The Home screen provides an overview of system controls, al-

lowing the user to monitor the vapor-refrigeration cycle. The screen indicates the current status of the unit, giving information on the unit capacity, refrigerant conditions, occupied status, capacity limit, compressor A and B status, the active set point, and other information. See Fig. 4 and 5.

Intelligence. The display in-

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SEE DETAIL A

DETAIL A

ETHERNET

USB

Fig. 1 — Component Layout Drawing (30XVB140-325 Shown)

Fig. 2 — Component Layout Drawing (30XVB350-500 Shown)

Page 7

Fig. 3 — Welcome Screen

LEGEND

1—Evaporator Entering Fluid Temperature 2—Outdoor Air Temperature 3—Evaporator Leaving Fluid Temperature 4—Unit Status 5—Circuit A Status 6—Circuit B Status 7—Circuit A Refrigeration Details 8—Circuit B Refrigeration Details 9—Unit Status Message 10 — Active Setpoint

Start/Stop — Touch to access the machine control method menu. See page 25 for details on available operating modes.

Alarm — The alarm icon turns solid or blinks red when a fault is detected. See page 208 for details on system alarms and alerts.

To display circuit specific information select the desired Circuit Button. See Fig. 5.

Fig. 4 — Home Screen

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

Main Menu — Touch the Main Menu button to access all unit functions. See Main Menu Screen on page 9 for details.

Log In — Touch to enter passwords and select language or change the system of measurement. See page 9 for login details. The icon shown is for Basic access; it changes based on access level. See Table 3 for Advanced User, Service, and Factory access icons.

Table 3 — Screen Buttons

BUTTON FUNCTION

TOP LEFT PANEL — GENERAL NAVIGATION

Home button: Goes to the home screen.

Main Menu button: Goes to the Main Menu screen from the Home screen. Allows access to unit menus and parameters. See page 9.

Back button: Goes to previous screen.

TOP RIGHT PANEL — SPECIAL NAVIGATION

Start / Stop button: Goes to the chiller start / stop screen. The Start/Stop button is gray, green, or blinking green. See the Machine Control Methods section on page 25.

Alarm button: Goes to the alarm menu screen.The Alarm button is gray, red, or blinking red. See the Alarms and Alerts section on page 208.

Fig. 5 — Home Screen with Saturated Condensing

Temperature (SCT) and Saturated Discharge

Temperature (SDT)

UNIT 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.

BOTTOM LEFT PANEL — ACTIONS SPECIFIC TO CURRENT SCREEN OPERATION

Save/Cancel: Save button confirms changes. Cancel discards changes.

BOTTOM RIGHT PANEL — SCROLLING INSIDE CURRENT SCREEN

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

Troubleshoot Quick Test and Svc Alerts: only appears in Service or Factory Access Level. Touching the icon opens three icons on the side of

the screen: Service Alerts . Quick Test . and Troubleshoot

Page 8

Table 4 — Unit Status Messages

SCREEN MESSAGE FUNCTION

DNS CONFIG

GATEWAY CONFIGURATION

ETH0/1 CONFIG

NTP TIME SYNC

SET MANUAL TIME SCREEN

TIME ZONE CONFIG SCREEN

CCN MESSAGES

CURRENT ALARMS Log in as Service or higher to reset alarms CIRCUIT A/B SCREEN Compressor Status : MAIN EXV A/B EXV control mode : ECO EXV A/B ECO Mode :

START/STOP

PUMP CONFIG Unit Must Be OFF Before Modifying Menu

FACTORY PARAMETERS

HOME Trip out : Active alarm description

SERVICE ALERT

Current Login Level = Basic Entered password is 0 or basic login; login is allowed.

Current Login Level = Advanced User

Current Login Level = Service

Current Login Level = Factory

DNS applied successfully DNS IP invalid System call failed Gateway applied successfully failed to execute gateway_wrapper script incorrect arguments to gateway_wrapper invalid gateway ip invalid gateway mask Incorrect option passed to gateway_wrapper Invalid argument to route command Network is unreachable Gateway exists bogus netmask netmask and route address conflict No such gateway ip present gateway_wrapper.sh not found cannot execute gateway_wrapper.sh Gateway deleted IP address applied successfully error, IP address is blank IP address is invalid error, IP address is zero error in setting IP address error , netmask is blank netmask is invalid error, netmask is zero error in setting netmask Time synchronized successfully ntp server address empty Network is unreachable failure in name resolution no response after 1 seconds not in sync, skipping this server system() failed to execute script sntp_wrapper.sh not found cannot execute sntp_wrapper.sh save successfully NO_ERROR Time zone set successfully Invalid time zone settings Platform error in setting time zone SUCCESS CCN Table successfully saved to system. internal communication failure Equipment Controller did not respond while reading table content Value outside lower limit Value was written outside the lower bounds of the data point. Value outside higher limit Value was written outside the upper bounds of the data point.

higher level force is already in action

ACCESS DENIED A read-only data point or table was accessed and the request was denied.

Factory or BACnet changes have been detected. UI must be rebooted.

Reset Alarms Before Starting Chiller Disable Quick Test Before Starting Chiller

Unit Must Be Local OFF Before Modifying Menu UI must be rebooted for changes to take effect.

If oil filter pressure drop is above: High Oil Filter Pressure Drop Alert High Discharge Pressure Alert High Evaporator Delta T Alert If evaporator delta T is above:

Entered password corresponds to the Advanced User Password; login is allowed.

Entered password corresponds to the Service User Password; login is allowed.

Entered password corresponds to Factory User Password; login is allowed.

Equipment controller rejects Force or Auto command due to a higher level force present.

Page 9

CARRIER CONTROLLER LOGIN AND DISPLAY SETUP

LEGEND

1—

Arrows indicate selected language

2—

3—

System of measurement selection

4—

Password dialog box

Certain control functions and navigation menus are password protected. There are multiple levels of user access on the Carrier Controller 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.

• Advanced User — The Advanced User access level authorizes access to modify the Setpoint Table and some Configuration Menu parameters, as well as access to all menus accessible with the Basic mode. See menu structure on page 12. The default password for Advanced User level access is 11. To change the Advanced User access password, go to Main



Configuration Menu  HMI Configuration



User Password Change, then enter the old password and the new password. Confirm the new password, then press the Submit button. After selecting the Submit button, a pop-up window will indicate that the user password was changed successfully. Select OK to continue.

• 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. See menu structure on page 12. When logged in under Service access, the service

icon will appear on the Home Screen in the upper right corner. 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 touch the Done button to accept the entry and close the pop-up screen, then select the Save button. Use caution when changing the password. If the password is changed and forgotten, in order to retrieve the password a higher level access or external tool is required.

• Factory — The Factory access level authorizes access to all menus and parameters for the unit, including factory settings. See menu structure on page 12. When logged in under Facto-

ry access, the Factory icon will appear on the Home Screen in the upper right corner. 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 touch the Save button. Use caution when changing the password. If the password is changed and forgotten, in order to retrieve the password an external tool is required.

To log in to the Carrier Controller display, touch the Login button on the Home screen and input the required password on the User Login screen. The Login icon will change to one of

three icons denoting the access level: Basic, Service, or Factory. Then touch the Home button on the User Login screen. Once logged in to the controller, after 6 minutes of inactivity, the

controller will revert back to Basic Access Level. To log out of the controller, touch the Access Level icon. In the password box, type 0, then touch the Done button. See Fig. 6.

Fig. 6 — User Login Screen

Changing the Carrier Controller Display Language

The User Login Screen (Fig. 6) offers 2 language selections for the Carrier Controller Display: English or Spanish .

The factory default language is English. The current language is shown between the arrows . To change the display language, simply select the desired language icon on the User Login screen. The language can be changed without being

logged into the controller. Then touch the Home button on the User Login screen. See Fig. 6.

Changing the Units of Measurement

The User Login Screen (Fig. 6) offers 2 choices for units of measurement: US Imperial or Metric. The factory default is US Imperial. The current selection is denoted by a blue button. To change the measurement system, select the appropriate system on the User Login screen, then press any other button or icon on the User Login screen. The units can be changed without being logged into the controller. See Fig. 6.

MAIN MENU SCREEN The Main Menu provides access to the main control parame-

ters, including general parameters, temperatures and pressures, inputs and outputs status, and others. Touch the Main Menu

button on the Home screen to access the Main Menu. The Main Menu displayed will depend upon what access level the

user is logged in as. Figure 7 shows the Main Menu. To navigate through the pages,

touch the arrows at the lower right corner of the screen. To view or modify system parameters, touch the appropriate

icon on the Main Menu. For example, to access the General Parameters table, touch the General Parameters button .

Figure 8 shows the first page of the General Parameters table if logged in with Service Access. Use the arrows at the bottom right corner to navigate the General Parameters table.

Page 10

Fig. 7 — Main Menu, Page 1 and Page 2

Fig. 9 — Data Entry Keyboard

If a numeric response is required, a keypad will be displayed along with Cancel, Clear, Set, and Relinquish keys (see Fig. 10). Use the keypad to enter the value and touch the Set key. Once complete, Cancel and Save buttons will appear in the lower left section of the Unit Status Line. To accept the change, touch the Save button

. To cancel, touch the Cancel button .

For menu items, a series of limited choices will be displayed on the screen in a separate window. Select the desired value. Once complete, Cancel and Save buttons will appear in the lower left section of the Unit Status Line. To accept the change, touch the

Save button . To cancel, touch the Cancel button .

Fig. 8 — General Parameters, Page 1

Points that can be changed with the current level of user access are outlined by a box. For example, to modify the set point select parameter, select the current set point select value as shown in Fig. 8 and enter the desired parameter.

The data entry screen will be displayed (Fig. 9). For alphanumeric responses, such as the password screen, a QWERTY keyboard is displayed (see Fig. 9). In addition to the normal alphanumeric keys, arrow, and symbols, there is a Backspace Key

, a Cancel button, and a Done button. Enter the data re-

quired and touch the Done button to accept the change. If re-

quired, Save and Cancel icons will appear in the

Unit Status Line to confirm the changes.

Fig. 10 — Data Entry Keypad

GENERAL CONFIGURATION TABLE This table contains configuration settings for the unit. Select

Main Menu tion to access the table (Fig. 11).



Configuration Menu General Configura-

Page 11

Touch the field corresponding to the parameter to be modified

LEGEND

1 — Set the start date 2 — Set the start hour 3 — Set the start minutes 4 — Set the end date 5 — Set the end hour 6 — Set the end minutes 7 — Select Go to graph

and make the necessary changes. When all necessary changes have been made, touch the Save button to confirm or the Cancel button to cancel changes. For a complete list of general parameters, see Appendix A.

TRENDING SCREEN The Trend Display screen allows for easy monitoring of parame-

ters selected by the user. To access the Trend Display screen, select Trend Display on the Main Menu. See Fig. 12.

Select the parameters to be displayed by selecting the box to the left of the parameter name. The scroll bar on the right of the screen can be used to see all possible selections; to save a selection touch the Save Trend Display Options Button. Once the parameters to be trended are selected and saved, touch the Display Trend Log Button and the trend graph will be displayed. See Fig. 13.

Fig. 11 — General Configuration

Fig. 12 — Trend Display Screen

Fig. 13 — Trending Configuration Screen

Use the following buttons to adjust the Trendings display:

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. 14-16 for Carrier Controller menu structure. The op-

tions displayed depend on the user’s access level as shown in the figures. The user can navigate through the Carrier Controller 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 parameters and values is shown, the top line of the display will show either the menu item name if sub-menu items appear or the table name when points and values are displayed. 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 Appendixes A and B.

SETTING TIME AND DATE The date and time for the controls can be set by opening the Main



Configuration Menu HMI Configuration Menu

Date/Time Configuration. Select either the NETWORK TIME

SYNC button or SET TIME MANUALLY button. Choosing the NETWORK TIME SYNC button will allow the controller to synchronize the time with a network server if the chiller control system is connected to a network. See Appendix A, page 258. See Fig. 17 for details required to use Network Time Sync. Selecting SET TIME MANUALLY button allows the user to configure the Time Zone and set the date, time, daylight saving time, and whether today or tomorrow is a holiday. See Fig. 17 for details.



Page 12

Fig. 14 — Main Menu and Alarm Menu Structure

HOME

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

General Parameters

Input Status

Run Times

Configuration Menu

Trend Display

Temperatures

Output Status

Modes

Quick Test Table

Pressures

Pump Status

Setpoint Table

Maintenance Menu

TO CONFIGURATION MENU

TO MAINTENANCE MENU

Reset Alarms

Current Alarms

Alarm Historic

Major Alarm Historic

HMI Configuration Menu

Reset Configuration

Broadcast Menu

Service Parameters

Compressor Enable

General Configuration

Schedule Menu

Factory Parameters

Update Running Hour

Email Configuration

Fig. 15 — Configuration Menu Structure

Capacity Control

EXV Control

EXV Eco. Control

Fan Drive Addressing

VLT Drive Maintenance

Control Limits

Fan Control

Troubleshoot Info

Fig. 16 — Maintenance Menu Structure

Network Conn-eth0

Network Conn-eth1

Pump Configuration

Holiday Menu

Factory2 Parameters

Master/Slave Conf ig

Last PowerOn Reset

Master/Slave Con trol

Fan Drive Maintenance

CCN Configuration

LEGEND — FIG. 14-17 All (no password required)

1— 2— 3— 4—

Basic access required (default password = 0) Service access required (default password = 88) Factory access required (default password = 113)

BACnet Configuration

CPU Memory

Screen Brightness

Fig. 17 — HMI Configuration Menu Structure

Date/Time Configuration

Termination Resistor

Control Identification

System Information

Page 13

WEB AND NETWORK INTERFACE The Carrier Controller control can be configured to allow access

via a standard, java-enabled web browser or over a network. See Appendix I for detailed information on setting up and accessing the Carrier Controller via the web or network interface. See Table 5 for port connections. See Fig. 18 for interface and connectors.

Table 5 — Carrier Controller Display Port

Connections

CONNECTOR

J1 TYPE-A USB-3: Firmware/Software Upgrade

J5 TYPE-A USB-1: Firmware/Software Upgrade

J10

J11 TYPE-A USB-2: Firmware/Software Upgrade

J14

J15 RJ45

J16 RJ45 Ethernet-1: WAN (connectivity)

NOTES:

1. For more information about password access, see Carrier Controller Login and Display Setup on page 9.

2. PINOUT is listed as viewed from back of from left to right on connector.

TYPE/

PINOUT

SHD

12V

SHD

RS485-1: LEN System Internal I/O Boards

RS485-2: CCNC

RS485-4: BMS Interface, BACnet

RNET Port to Support RNET Devices

RS485-3: Not used

24VAC Power

Ethernet-2: Service Tool, BMS Interface, BACnet, WAN (connectivity)

FUNCTION

Page 14

SEE DETAIL A

BRD PWR 24VAC J14

RS485 LEN J6

RS485 CCN J7

RNET J9

(SHARED WITH RS485 J8 XCEIVER)

RS485 J8

RS485

ETHERNET J16

ETHERNET J15

USB J11

USB J1

USB J5

J10

Fig. 18 — Carrier Controller Display Interface and Connectors

DETAIL A

4 PLACES

LOCK CLIP

M5 0.8 X 20 mm FLAT TIP SET SCREW

TORQUE 0.45 - 0.56 Nm

Page 15

Input/Output (SIOB) Boards

There are two SIOBs for each unit, SIOB-A (address 49) for Circuit A and SIOB-B (address 50) for Circuit B. See Fig. 19. These boards receive 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 provide output control to expansion valves, oil and variable load matching 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 SIOBs and the Carrier Controller module via a 3-wire communication bus or LEN bus. Connections for the LEN bus are J12 and J13. Each SIOB has a 4-position DIP switch bank used for addressing of the board. SIOB-A is at address 49 and SIOB-B is at address 50. See Table 6 for SIOB DIP switch settings. See Tables 7 and 8 for a list of inputs and outputs for the two SIOBs.

RED LED - STAT US

DIP SWITCH

GREEN LED - LEN (Local Equipment Network)

a30-5864

LEN CONNECTION

Fig. 19 — SIOB

Table 6 — SIOB A and B DIP Switch Settings

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

Page 16

Table 7 — 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 W) AI-02 Temp (5000 W) COOL_LWT Cooler Leaving Water Temperature AI-03 Temp (5000 W) OAT Outdoor Air Temperature AI-04 Temp (5000 W) CP_TMP_A Compressor A motor temperature AI-05 Temp (5000 W) 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 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 Pump Relay #1

OIL_HT_A Oil Heater Contactor Circuit A

OIL_SL_A Oil Solenoid Circuit A

Table 8 — 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 Display heater (accessory) 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 —

Page 17

Auxiliary 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 on the "P" terminal and as shown in Fig. 20. The AUX boards

24 VAC

Q12

Q11

Q10

U10

respond to commands from the Carrier Controller module and send the Carrier Controller module the results of the channels they monitor via the LEN. See Table 9 for AUX board A and B DIP switch settings. See Tables 10 and 11 for a list of inputs and outputs for the AUX boards.

RED LED - STAT US

DIP SWITCH

STATU S SIO (LEN)

Q60

GREEN LED - LEN (Local Equipment Network)

JP2

100K

U21

– G +

3 2 1

– G +

3 2 1

JUMPER JP2 - "P"

JUMPER JP1 - "T"

TR1 TR2 TR3 TR4 TR5 TR6 TR7 TR8

CH1

CH2 CH3

CH4 CH5 CH6 CH7 CH8

C61

CH9

CH10

CH11

D12

CH13

CH12

JP1

J7 J8

CH13 CH14

Fig. 20 — AUX Board

Table 9 — AUX Board A and B DIP Switch Settings

AUX BOARD A DIP SWITCH 12345678

AUX BOARD BDIP SWITCH 12345678

Address ON ON OFF OFF ON OFF ON OFF

Address OFF OFF ON OFF ON OFF ON OFF

Table 10 — AUX Board A Inputs and Outputs

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

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 (0-10 Vdc) 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

FC1_A Fan A Stage 1

FC5_A Fan A Stage 5

DGT_A Discharge Gas Temperature Circuit A

Table 11 — AUX Board B Inputs and Outputs

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

CH 1 DO CH 2 DO FC2_B Fan B Stage 2 CH 3 DO FC3_B Fan B Stage 3

FC1_B Fan B Stage 1

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

FC5_B Fan B Stage 5

CH 8 DO FC8_B Fan B Stage 8 CH 9 AO J4 CAPT010B % Capacity Circuit B (0-10 Vdc) CH 10 AO J5 — Not Used CH 11 AI CH 12 AI SUCT_B Suction Gas Temperature Circuit B

DGT_B Discharge 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. Position 10 is S and Position 13 is -, 1, 3, or 5.

Page 18

Enable-Off-Remote Switch (SW1)

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

CH 24CH25

CH 10

CH 11a

J9A

J9B

RED LED - STATU S

GREEN LED - LEN (Local Equipment Network)

The position of the Enable-Off-Remote switch is ignored except when the Remote control type is selected. Refer to the Machine Control Methods section on page 25 for more details. A selection for Machine Control Method must also be made along with the correct position of the Enable-Off-Remote 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 ignore the field-supplied Remote Contacts, enabling the unit all of the time. When switched to the Off position, the chiller will shut down if running. This allows for local (at the unit) override of the Remote Contact input. When switched to the Remote position, a field-installed dry contact can be used to start and stop the chiller. The contacts must be capable of handling a 24 VAC, 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. 21. When the EMM module is field-installed, the Carrier Controller must be set up to communicate with the EMM module (Main Menu

tion Menu Module



Factory Parameters  Energy Management



Yes). The Energy Management Module allows the

following functions:

• Chilled Water Temperature Reset — Resets the chilled water set point by the following methods:

a. 4 to 20 mA Input: A field-supplied signal generator

and

/2-watt, 250-ohm resistor are required.

b. Space Temperature: A field-supplied space tempera-

ture sensor is required.

• Demand Limit — Limits the capacity of the machine from unit capacity by the following methods:



Configura-

a. 4 to 20 mA Input: A field-supplied signal generator

and

/2-watt, 250-ohm resistor are required.

b. 2 or 3-Step Switch Control: A field-supplied dry con-

tact switch is required. (One-Step Demand Limit does not require the EMM.)

• Occupancy Override — Extends the occupied period for machine operation. A field-supplied dry contact switch is required.

• Remote Chiller Lockout — Disables the chiller when closed. A field-supplied dry contact switch is required.

• Ice Done Control Switch — Signals the machine to exit the Ice Build mode and enter an unoccupied time period. A field-supplied dry contact switch is required.

The following status functions are available with the EMM board:

• Capacity Output Signal — A 0 to10 vdc analog output signal indicating chiller capacity is available.

• Shutdown Status Relay — A 24 vac output signal indicating that the machine is shutting down.

• Alert Relay — A 24 vac output signal indicating the unit has an active alert.

• Compressor Run Status — A 24 vac output signal (one for compressor A, one for compressor B), indicating the compressor is on.

The EMM communicates the status of all inputs with the Carrier Controller module, and the controls adjusts the control point, capacity limit, and other functions according to the inputs received. See Table 12 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. Carrier Controller controls use half wave rectification. A signal isolation device should be utilized if a full wave bridge rectifier signal generating device is used.

Fig. 21 — Energy Management Module

Page 19

Table 12 — EMM Board Inputs and Outputs

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 0-10 Vdc 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

Local Equipment Network

Information is transmitted between modules via a 3-wire communication bus or LEN.

Board Addresses

All boards (except the Carrier Controller display and the Energy Management Module) 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 (Light-Emitting 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. Confirm current version of software installed on SmartView panel by navigating to Control Identification Menu (Main Menu

uration Menu  Control Identification Menu  Software Part Number). If a newer version of the software exists, con-

tact your Carrier service representative service to reload current software. If the problem still persists, replace the Carrier Controller 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 LED which should be blinking



Configuration Menu  HMI Config-

BOARD

CONNECTOR

CCN POINT

— — AI-01 5/10K Thermistor

POINT

DESCRIPTION

I/O POINT

NAME

INPUT/OUTPUT

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 SIOBs. A valid unit configuration must be in the Carrier Controller module for proper LEN communication.

Carrier Comfort Network® Interface

All 30XV units can be connected to the CCN, if desired. The communication bus wiring is RS-485 Communication Wiring, CM or CMP rated consisting of 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. See Fig. 22. For noise consideration, communication wiring must be separate and not run in parallel with other wiring.

NOTE: Conductors and drain wire must be 20 AWG (American Wire Gage) minimum stranded, tinned copper. Individual conductors must be insulated with PVC (Polyvinyl Chloride), PVC/ nylon, vinyl, Teflon 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. High temperature applications may require a higher temperature range. Plenum applications will require plenum rated cable. Cable voltage requirements must match the application.

, or polyethylene. An aluminum/polyester

TYPE

whenever 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

1. Teflon is a registered trademark of DuPont.

Page 20

Fig. 22 — Carrier Controller CCN Communication Wiring

When connecting to a CCN communication bus, it is important 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 Network Service Tool).

The remote alarm annunciator relay, indicating that one circuit or the complete unit has been shut down, can be connected to TB5-12 and TB5-21. Refer to unit wiring diagrams. For the remote alert annunciator relay, indicating that an alert is active but neither circuit is shut down, a field-supplied and installed relay must be connected between TB6-18 and TB6-26. The Energy Management Module is required for this feature. The unit configuration must have the Energy Management Module enabled (Main Menu



Configuration Menu Factory Parameter)

set EMM to YES(1).

CONFIGURATION (SOFTWARE)

Carrier Controller Operation Configuration Tables

The Carrier Controller control system can be configured 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 Carrier Controller interface or remotely through the CCN. Table 13 shows the Carrier Controller configuration required to access the unit on the CCN. Figure 23 shows the CCN configuration screen.

Table 13 — Carrier Controller Identification

Configuration Table

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.

External Sensor Wiring

External sensors, such as a Space Temperature Sensor, must be wired to the unit, if values are not communicated. The wiring should be CM or CMP rated depending on the application. Wiring is field supplied and installed. For wiring runs of less than 100 feet (30.5 m), 2-conductor, twisted pair, unshielded wire is acceptable. For wiring runs of 100 feet (30.5 m) or more, 2-conductor, twisted pair, shielded wire is recommended. For noise consideration, sensor wiring must be separate and not run in parallel with other wiring.

NOTE: Conductors and drain wire must be 20 AWG 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. High temperature applications may require a higher temperature range. Plenum applications will require plenum rated cable. Cable voltage requirements must match the application.

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.

PATH DISPLAY NAME VALUE

Main Menu Configuration Menu HMI Configuration MenuCCN Configuration Menu



CCN Address CCN Bus

Primary Bus Baud Rate

Default=1

Default=0

Default=9600

Fig. 23 — CCN Configuration Screen

Carrier Controller Menu Tables

Carrier Controller operation is controlled by configuration information entered in the configuration tables listed in Tables 14-18. Access to different parameters may be available to all users (BASIC) or password-protected (ADVANCED USER, SERVICE, FACTORY). See Appendix A for detailed descriptions of all control tables and parameters.

Page 21

Table 14 — Main Menu Table

ITEM CCN MENU NAME ACCESS MENU TEXT DESCRIPTION MENU ICON

GENUINT

TEMP

PRESSURE

INPUTS

OUTPUTS

PUMPSTAT

RUNTIME

MODES

BASIC, ADVANCED USER,

SERVICE, FACTORY

BASIC, ADVANCED USER,

SERVICE, FACTORY

BASIC, ADVANCED USER,

SERVICE, FACTORY

BASIC, ADVANCED USER,

SERVICE, FACTORY

BASIC, ADVANCED USER,

SERVICE, FACTORY

BASIC, ADVANCED USER,

SERVICE, FACTORY

BASIC, ADVANCED USER,

SERVICE, FACTORY

BASIC, ADVANCED USER,

SERVICE, FACTORY

General Parameters

Temperatures

Pressures

Inputs Status

Outputs Status

Pump Status

Run Times

Modes

SETPOINT

CONFIG

QCK_TEST SERVICE, FACTORY Quick Test Table

MAINTAIN SERVICE, FACTORY Maintenance Menu

TRENDING

ADVANCED USER, SER-

VICE, FACTORY

ADVANCED USER, SER-

VICE, FACTORY

BASIC, ADVANCED USER,

SERVICE, FACTORY

Setpoint Table

Configuration Menu

Trend Display

Table 15 — Alarms Menu Table

ITEM CCN MENU NAME ACCESS MENU TEXT DESCRIPTION MENU ICON

ALARMRST SERVICE, FACTORY Reset Alarms

CUR_ALM BASIC, ADVANCED USER, Current Alarms

ALMHIST1 BASIC, ADVANCED USER, Alarm Historic

ALMHIST2 BASIC, ADVANCED USER, Major Alarm Historic

Page 22

Table 16 — Configuration Menu Table

ITEM CCN MENU NAME ACCESS MENU TEXT DESCRIPTION MENU ICON

HMI_CONF ADVANCED USER HMI Configuration

GEN_CONF ADVANCED USER General Configuration

PUMPCONF ADVANCED USER Pump Configuration

RESETCFG ADVANCED USER Reset Configuration

SCHEDULE ADVANCED USER Schedule Menu

HOLIDAY ADVANCED USER Holiday Menu

BRODCAST ADVANCED USER Broadcast Menu

FACTORY FACTORY Factory Parameters

FACTORY2 FACTORY Factory2 Parameters

SERVICE SERVICE, FACTORY Service Parameters

UPDTHOUR SERVICE, FACTORY Update Running Hour

MST_SLV SERVICE, FACTORY Master Slave Config

CP_UNABL SERVICE, FACTORY Compressor Enable

EMAILCFG SERVICE, FACTORY Email Configuration

Page 23

Table 17 — Maintenance Menu Table

ITEM CCN MENU NAME ACCESS MENU TEXT DESCRIPTION ICON

1 CAPACTRL SERVICE, FACTORY Capacity Control

2 VLT_DRV SERVICE, FACTORY VLT Drive Maintenance

3 LAST_POR SERVICE, FACTORY Last PowerOn Reset

4 EXV_CTRL SERVICE, FACTORY EXV Control

5 LIMITS SERVICE, FACTORY Control Limits

6 M_MSTSLV SERVICE, FACTORY Master Slave Control

7 ECO_CTRL SERVICE, FACTORY EXV Eco. Control

8 FAN_CTRL SERVICE, FACTORY Fan Control

9 FAN_DRV SERVICE, FACTORY Fan Drive Maintenance

10 FAN_DRV2 SERVICE, FACTORY Fan Drive Addressing

11 TBLSHT SERVICE, FACTORY Troubleshoot Info

Page 24

Table 18 — HMI Configuration Menu Table

ITEM CCN MENU NAME ACCESS MENU TEXT DESCRIPTION ICON

1 NET_ETH0 SERVICE, FACTORY Network Conn - eth0

2 NET_ETH1 SERVICE, FACTORY Network Conn - eth1

3 CCN_CONF SERVICE, FACTORY CCN Configuration

4 BAC_CONF SERVICE, FACTORY BACnet Configuration

5 DATETIME SERVICE, FACTORY Date/Time Configuration

6 CTRL_ID ADVANCED USER Control Identification

7 CPU_MEM ADVANCED USER CPU/Memory

8 TERM_RES SERVICE, FACTORY Termination Resistor

9 SYS_INFO ADVANCED USER System Information

10 SCRN_BRT ADVANCED USER Screen Brightness

Page 25

Machine Control Methods

This term refers to how the machine is started and stopped. Several Machine Control Methods are available.

• Local On

• Local Schedule

•Network

•Remote

•Master

The Carrier Controller Start/Stop button is used to select one of the above control types; see Fig. 24. The Carrier Controller Start/Stop button is used to select one of the above control types. Once the Start/Stop button is touched, and assuming the unit is not running, the current start method will be indicated in green; if this is the case, the option to switch to “Local Off” will also be available. See Fig. 24 for details. 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. 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.

Fig. 24 — Machine Control Methods

See Fig. 25 for Machine Control Methods Local Off.

LOCAL ON With this mode selected, the unit is under local control and will

be allowed to start. The unit will ignore the Remote Control Contacts, as well as the Enable-Off-Remote Switch (SW1) and any network commands except Emergency Stop, as well as the Enable-Off-Remote (SW1) input. Use this method if the unit is to run all the time without direction from a Building Management System or network.

LOCAL SCHEDULE With this mode selected, the unit is under local control and will

be allowed to start if Occupancy Schedule 1 Configuration



time is within an occupied period. Otherwise, the unit will remain off. See “DEFINING OCCUPANCY SCHEDULE” on page 28 for details on configuring a local schedule. The unit will ignore the Remote Control Contacts, as well as the Enable-Off-Remote (SW1) and any network commands except Emergency Stop. Use this method if the unit is to run based on an occupancy schedule without direction from a Building Management System or network.

NETWORK With this mode selected, the unit is under CCN control and will

be controlled by CCN commands. The unit will ignore the Remote Control Contacts, as well as the Enable-Off-Remote (SW1) input. Use this method if the unit is to run based on a Building Management System or network.

REMOTE With this mode selected, the unit is under remote control and will

be allowed to start if the Enable-Off-Remote Switch (SW1) is in the Remote position and the Remote Contacts (TB5-9 and -10) are closed. Alternatively, if the Enable-Off-Remote Switch (SW1) is in the Enable position, the unit will operate regardless of the Remote Contact status (TB5-9 and -10), since it will be bypassed. The unit will ignore any network commands except Emergency Stop. Use this method if the unit is to operate the chiller via a contact closure from a Building Management System.

MASTER With this mode selected, the unit is operating as the Master unit of

a 2-unit Master-Slave Chiller Plant. The Master unit can be started under Local On, Local Schedule, Network, or Remote. The exceptions noted for each of the control methods will still apply. Use this method if the unit is to run as the Master unit.

Table 19 summarizes the available operating types.

Schedule Menu  OCCPC01S indicates the current

Fig. 25 — Machine Control Methods showing Current

Start Method and Local Off Option

Page 26

Table 19 — Operating Types

MACHINE CONTROL TYPE OPERATING TYPE DESCRIPTION

LOCAL OFF Local

LOCAL ON Local

LOCAL SCHEDULE Local

NETWORK CCN

REMOTE Remote

MASTER Master

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 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 no. 1 is occupied (CHIL_OCC). Otherwise, the unit will remain off. The control will ignore all remote control contacts 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.

The unit is under Remote control method and will be controlled by the start/stop. 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.

MACHINE CONTROL METHOD SELECTION The Machine Control Method is selected through the Carrier

Controller by touching the Start/Stop button .

Start/Stop Selection Screen

The Carrier Controller Start/Stop button is a hotkey, and when touched, opens the Start/Stop selection screen. and displays the list of Machine Control Methods if the unit is off (Fig. 24), or Confirm Stop if the unit is on (Fig. 26).

Start a Stopped Machine

If the unit is off, the Start/Stop button

will be gray. Touch

the icon to display the list of operating modes and select the required mode. Once the unit has been started, the display will return to the home screen.

Stop a Running Machine

To stop a running unit, touch the green Start/Stop button . For Machine Control Methods Local On or Master, confirm the

Fig. 27 — Chiller May Restart Automatically Warning

unit shutdown by touching Confirm Stop or cancel by touching the Back button (Fig. 26).

Screen

Fig. 26 — Confirm Stop

For Machine Control Method Local Schedule, touch the Local Off button to stop the machine or Back button to cancel (Fig. 26).

For Machine Control Method Network, touch the Local Off button to stop the machine or Back button to cancel (Fig. 27).

If the unit was operating when a power failure occurred, the controller initializes when power is restored and displays a Warning screen to indicate the machine may start (Fig. 27). If the Stop Chiller button is touched, the Success screen will be displayed (Fig. 28). When the initialization period is complete, the Warning screen, if the unit is not stopped, or Success screen will clear as the Home Screen is displayed.

Fig. 28 — Chiller in Off Position Screen

Once the unit has been stopped, the Home screen is displayed. If the unit is running, touching the Start/Stop button displays a

screen with a Confirm Stop button (see Fig. 26), which when touched changes the chiller to Local Off mode. If the unit is Off, touching the Start/Stop button shows a list of operating types with the currently selected type corresponding to the last running operating type (Fig. 24).

MACHINE ON/OFF FUNCTION The machine operating state can be viewed by going to Main



General Parameters  Run Status. Table 20 sum-

marizes possible unit states.

Page 27

Table 20 — Unit States

STATE DESCRIPTION

Off Unit is commanded to be off

Stopping

Delay

Running

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

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)

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

Table 21 summarizes the unit control method and stop or go status with regard to the following parameters set in the Carrier Controller module:

• Machine Control Method: Machine Control Method as selected on the unit Start/Stop screen.

• CHIL_S_S: Current CCN chiller start/stop force command (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  Re-

mote On/Off Switch.

• CHIL_OCC: Chiller occupied state. If the occupancy override input switch is closed, the chiller remains occupied regardless of the set point scheduled selection. Main



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



Master Slave Control (0=disabled, 1=master,



Maintenance

2=slave).

• EMSTOP: CCN emergency stop command (enable/disable).

Main Menu



General Parameters  Emergency Stop.

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

The Machine Control Method and Parameter Status combinations listed in Table 21 will determine the actual unit running state.

NOTE: When changing from one Machine Control Method (Local On, Local Schedule, Network, Remote, or Master) 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.

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



Service Parameters. The default for Entering Fluid Con- trol is Off (leaving fluid control is the default condition). To enable Entering Water Control, change Entering Fluid Control to On. Entering Water Control is recommended for con-

stant flow applications only.

COOLING SET POINT SELECTION The Control Point (shown in the lower right corner of the Home

Screen, or Main Menu



General Parameters  Control

Point) represents the water temperature that the unit must pro-

duce. The unit will vary the capacity depending on the load conditions in order to satisfy the set point. The Control Point (CTRL_PNT) is calculated based on the Active Setpoint (Main



General Parameters) [Main Menu and General Parameters in bold italics]. and the reset calculation, where Control Point = Current Setpoint + Temperature Reset. (See “Temperature Reset” on page 38.) Control Point can be written to by the Building Management System, instead of the set point calculation only if Network is selected as the Machine Control Method for the unit. See Main Menu



General Parameters  Local=0 Net.-1 Re-

mote=2 to verify operating type.



Configuration Menu

Table 21 — Start/Stop Control

MACHINE CONTROL METHOD PARAMETER STATUS

CHIL_S_S ONOFF_SW MS-CTRL CHIL_OCC EMSTOP

Local Off ——————LocalOff

Local On — — — — Disable No Local On

Local Schedule — — — Yes Disable No Local On

— — — No — — Local Off

Remote —Open————RemoteOff

———No——RemoteOff

Closed Yes — — Remote On

CCN Disable — — — — — CCN Off

———No——CCNOff

Enable — — Yes Disabled No CCN On

Master — — Local No — — Local Off

— Open Remote — — — Remote Off

— — Remote No — — Remote Off

Disable — CCN — — — CCN Off

— — CCN No — — CCN Off

— — Local Yes Disable No Local On

— Closed Remote Yes Disable No Remote On

Enable CCN Yes Disable No CCN On

—

CHIL_OCC — Chiller Occupied State MA St — Master/Slave Operating Type CHIL_S_S — CCN Chiller Start/Stop Command MS-CTRL — Master/Slave Control EMSTOP — Emergency Stop ONOFF_SW — Remote On/Off Switch

————

LEGEND

Enable — — Off

—Yes— Off

Alarm

Shutdown

OPERATING

TYPE

UNIT

STATUS

Page 28

DEFINING SET POINTS The cooling set points are set via the Setpoint Table (Main Menu



Setpoint Table). Cooling Setpoint 1, Cooling Setpoint 2,

and Cooling Ice Setpoint are temperature set points that are

available as the Current Setpoint for unit operation. These set points are limited by the type of fluid in the system (see Table 22).

See the Ice Storage Operation section on page 46 for more details about the Cooling Ice Setpoint.

All default set points are based on Leaving Water Control (Entering Fluid Control, EWTO [Entering Water Temperature Offset] set to No). Values must be confirmed for the individual set points. Limits for the set points are listed in Table 22. These values depend on the Evaporator Fluid Type and the Brine Freeze Setpoint (see Chilled Water Fluid Type Selection on page 30).

Table 22 — Evaporator Fluid Set Point Limits

Set Point Limits

Minimum* 38°F (3.3°C) 30°F (–1.1°C) 15°F (9.4°C) Maximum 60°F (15.5°C) 60°F (15.5°C) 60°F (15.5°C)

* 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 or 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



General Parameters  Setpoint Select): Auto, Set-

point 1, and Setpoint 2.

• 0 = Auto: The active cooling set point will be determined by the configured Occupancy Schedules. See the Defining Occupancy Schedule section for details on setting the schedules. Depending on the Ice Storage configuration 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



Setpoint Table  Cooling Setpoint 1) during the oc-

cupied 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 23 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

tion Menu



Schedule Menu.



Configura-

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.

To set the occupancy schedules, select OCCPC01S or OCCPC02S and select the applicable days for the displayed time schedule period. The selected period will be displayed as a green band on the timeline. Touch the Save button to confirm or the Cancel button to cancel changes. See Fig. 29.

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 24, 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  Holi-

day Menu. Select one of the 16 available Holiday periods

(HOLDY_01 through HOLDY_16) to define the holiday.

CCN Global Time Schedule

In addition to the two onboard occupancy schedules (OCCPC01S and OCCPC02S), the Carrier Controller can also receive a time schedule broadcast 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)

Page 29

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

Table 23 — Active Cooling Set Point Parameters

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).

OPERATING

TYPE

Local

Remote

Network

* Ice Storage Configuration and Ice Done Contact apply only to units

with 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 30

Fig. 29 — Schedule Menu

Table 24 — Configuring Schedules (Example)

ITEM PATH VALUE

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

Period 1

Main Menu



Schedule Menu OCCPC01S or

Configuration Menu

OCCPC02S

Page 1

Period 2



Configuration Menu

OCCPC02S

Page 2

Period 3



Configuration Menu

OCCPC02S

Page 3

Period 4



Configuration Menu

OCCPC02S

Page 4

Period 5



Configuration Menu

OCCPC02S

Page 5

