Carrier MPW015-045 User Manual

0 (0)

AQUASNAP® 30MPA,MPW015-045 Liquid Chillers with Scroll Compressors

and ComfortLink™ Controls

Controls, Start-Up, Operation,

Service, and Troubleshooting

SAFETY CONSIDERATIONS

Installing, starting up, and servicing this equipment can be hazardous due to system pressures, electrical components, and equipment location (elevated structures, mechanical rooms, etc.). Only trained, qualified installers and service mechanics should install, start up, and service this equipment.

When working on this equipment, observe precautions in the literature, and 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. There may be more than one disconnect switch. Tag all disconnect locations to alert others not to restore power until work is completed.

WARNING

DO NOT VENT refrigerant relief valves within a building. Outlet from relief valves must be vented outdoors 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 attempt to unbraze factory joints when servicing this equipment. Compressor oil is flammable and there is no way to detect how much oil may be in any of the refrigerant lines. Cut lines with a tubing cutter as required when performing service. 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 system. DO NOT re-use compressor oil. Damage to equipment or personal injury may result.

CAUTION

This unit uses a microprocessor-based electronic control system. Do not use jumpers or other tools to short out components, or to bypass or otherwise depart from recommended procedures. Any short-to-ground of the control board or accompanying wiring may destroy the electronic modules or electrical components.

CAUTION

To prevent potential damage to heat exchanger, always run fluid through heat exchanger when adding or removing refrigerant charge. Use appropriate brine solutions in cooler fluid loop to prevent the freezing of brazed plate heat exchanger 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 shutdown periods without taking precaution to remove all water from heat exchanger and optional hydronic system. Failure to properly protect the system from freezing may constitute abuse and may void warranty.

CAUTION

Compressors require specific rotation. Monitor control alarms during first compressor start up for reverse rotation protection. Damage to unit may result.

CAUTION

Refrigerant charge must be removed slowly to prevent loss of compressor oil that could result in compressor failure.

CAUTION

Puron® refrigerant (R-410A) systems operate at higher pressures than standard R-22 systems. Do not use R-22 service equipment or components on Puron refrigerant equipment. If service equipment is not rated for Puron refrigerant, equipment damage or personal injury may result.

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

Catalog No. 04-53300053-01

Printed in U.S.A.

Form 30MP-1T

Pg 1

1-10

Replaces: New

CONTENTS

Page

SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . . . . . . 1 GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Conventions Used in this Manual . . . . . . . . . . . . . . . . . . . 2

Basic Controls Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-33 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Main Base Board (MBB). . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Energy Management Module (EMM). . . . . . . . . . . . . . . . 14

Current Sensor Board (CSB) . . . . . . . . . . . . . . . . . . . . . . . 14

Enable/Off/Remote Contact Switch. . . . . . . . . . . . . . . . . 14

Emergency On/Off Switch. . . . . . . . . . . . . . . . . . . . . . . . . . 14 Board Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Control Module Communication . . . . . . . . . . . . . . . . . . . 14 Carrier Comfort Network® Interface . . . . . . . . . . . . . . . . 14

Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

COOLER LEAVING FLUID SENSOR

COOLER ENTERING FLUID SENSOR

CONDENSER LEAVING FLUID SENSOR

CONDENSER ENTERING FLUID SENSOR

COMPRESSOR RETURN GAS TEMPERATURE SENSOR

OUTDOOR-AIR TEMPERATURE SENSOR

DUAL LEAVING WATER TEMPERATURE SENSOR

REMOTE SPACE TEMPERATURE SENSOR

Energy Management Module . . . . . . . . . . . . . . . . . . . . . . . 21

Loss-of-Cooler Flow Protection . . . . . . . . . . . . . . . . . . . . 21

Condenser Flow Protection . . . . . . . . . . . . . . . . . . . . . . . . 21

Thermostatic Expansion Valves (TXV) . . . . . . . . . . . . . 21

Capacity Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

MINUTES LEFT FOR START

MINUTES OFF TIME

LEAD/LAG DETERMINATION

CAPACITY CONTROL OVERRIDES

Operation of Machine Based on Control Method

and Cooling Set Point Selection Settings . . . . . . . . 24

Cooling Set Point Select . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Cooler Pump Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Ice Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Service Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Cooler Pump Sequence of Operation . . . . . . . . . . . . . . 25

Condenser Pump/Condenser Fan Output

Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Configuring and Operating Dual Chiller Control. . . . 25

Temperature Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Demand Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

DEMAND LIMIT (2-Stage Switch Controlled)

EXTERNALLY POWERED DEMAND LIMIT (4 to 20 mA Controlled)

DEMAND LIMIT (CCN Loadshed Controlled)

Cooling Set Point (4 to 20 mA) . . . . . . . . . . . . . . . . . . . . . 32

PRE-START-UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33,34 System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

START-UP AND OPERATION . . . . . . . . . . . . . . . . . . . . 34-36 Actual Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Check Refrigerant Charge. . . . . . . . . . . . . . . . . . . . . . . . . . 34 Operating Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

TEMPERATURES

VOLTAGE — ALL UNITS

OPERATION SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . 36

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-44

Electronic Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

• CONTROL COMPONENTS

Compressor Replacement . . . . . . . . . . . . . . . . . . . . . . . . . 36

30MPW Condenser and 30MP Cooler . . . . . . . . . . . . . . 36

BRAZED-PLATE COOLER AND CONDENSER HEAT EXCHANGER REPLACEMENT

BRAZED-PLATE COOLER AND CONDENSER

HEAT EXCHANGER CLEANING

Oil Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Check Refrigerant Feed Components . . . . . . . . . . . . . . 37

FILTER DRIER

MOISTURE-LIQUID INDICATOR

THERMOSTATIC EXPANSION VALVE (TXV)

MINIMUM LOAD VALVE

PRESSURE RELIEF DEVICES

Check Unit Safeties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Thermistors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Pressure Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Chilled Water Flow Switch . . . . . . . . . . . . . . . . . . . . . . . . . 39

Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Replacing Defective Modules. . . . . . . . . . . . . . . . . . . . 43

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44,45

Recommended Maintenance Schedule . . . . . . . . . . . . 44

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . .44-52

Complete Unit Stoppage and Restart . . . . . . . . . . . . . . 44

GENERAL POWER FAILURE

UNIT ENABLE-OFF-REMOTE CONTACT SWITCH IS OFF

CHILLED FLUID PROOF-OF-FLOW SWITCH OPEN

OPEN 24-V CONTROL CIRCUIT BREAKERS

COOLING LOAD SATISFIED

THERMISTOR FAILURE

LOW SATURATED SUCTION

COMPRESSOR SAFETIES

Alarms and Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

APPENDIX A — LOCAL DISPLAY TABLES . . . . . . .53-64

APPENDIX B — CCN TABLES. . . . . . . . . . . . . . . . . . . .65-72

START-UP CHECKLIST FOR 30MP LIQUID

CHILLER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CL-1 to CL-8

GENERAL

This publication contains Start-Up, Service, Controls, Operation, and Troubleshooting information for the 30MPW watercooled chillers and the 30MPA air-cooled chillers. See Table 1. These liquid chillers are equipped with ComfortLink controls and conventional thermostatic expansion valves (TXVs). The 30MPA units and the 30MPW units with optional medium temperature brine are also equipped with liquid line solenoid valves (LLSVs).

CAUTION

This unit uses a microprocessor-based electronic control system. Do not use jumpers or other tools to short out or bypass components or otherwise depart from recommended procedures. Any short-to-ground of the control board or accompanying wiring may destroy the board or electrical component.

Table 1 — Unit Sizes

UNIT MODEL

NOMINAL TONS

30MPA,MPW015

15

30MPA,MPW020

20

30MPA,MPW030

30

30MPA,MPW040

40

30MPA,MPW045

45

Conventions Used in This Manual — The following conventions for discussing configuration points for the local display (scrolling marquee or Navigator™ accessory) will be used in this manual.

Point names will be written with the mode name first, then any sub-modes, then the point name, each separated by an arrow symbol ( . Names will also be shown in bold and italics. As an example, the Minimum Load Valve Select Point, which is located in the Configuration mode, Option 1 sub-mode, would be written as Configuration OPT1

MLV.S.

This path name will show the user how to navigate through the local display to reach the desired configuration. The user would scroll through the modes and sub-modes using the and keys. The arrow symbol in the path name represents pressing ENTER to move into the next level of the

menu structure.

2

When a value is included as part of the path name, it will be shown at the end of the path name after an equals sign. If the value represents a configuration setting, an explanation will be shown in parenthesis after the value. As an example,

Configuration OPT1 MLV.S = 1 (Minimum Load Valve Select).

Pressing the ESCAPE and ENTER keys simultaneously will scroll an expanded text description of the point name or

value across the display. The expanded description is shown in the local display tables but will not be shown with the path names in text.

The CCN (Carrier Comfort Network®) point names are also referenced in the local display tables for users configuring the unit with CCN software instead of the local display. The CCN tables are located in Appendix B of the manual.

Basic Control Usage

SCROLLING MARQUEE DISPLAY — The scrolling marquee display is the standard interface display to the ComfortLink Control System for 30MP units. The display has up and down arrow keys, an ENTER key, and an ESCAPE key. These keys are used to navigate through the different levels of the display structure. Press the ESCAPE key until the highest operating level is displayed to move through the top 11 mode levels indicated by LEDs (light emitting diodes) on the left side of the display. See Fig. 1 and Tables 2-14.

Once within a mode or sub-mode, pressing the ENTER and ESCAPE keys simultaneously will put the scrolling marquee display into expanded text mode where the full meaning of all sub-modes, items and their values can be displayed for the current selection. Press the ENTER and ESCAPE keys to return the scrolling marquee display to its default menu of rotating display items (those items in Run Status VIEW). In addition, the password will be disabled, requiring that it be entered again before changes can be made to password protected items. Press the ESCAPE key to exit out of the expanded text mode.

NOTE: When the Language Selection (Configuration DISP LANG), variable is changed, all appropriate display expansions will immediately change to the new language. No power-off or control reset is required when reconfiguring languages.

When a specific item is located, the item name alternates with the value. Press the ENTER key at a changeable item and the value will be displayed. Press ENTER again and the value will begin to flash indicating that the value can be changed. Use the up and down arrow keys to change the value, and confirm the value by pressing the ENTER key.

MODE

 

 

Run Status

 

 

Service Test

 

 

Temperature

 

 

Pressures

 

 

Setpoints

 

 

Inputs

Alarm Status

 

Outputs

ESCAPE

ENTER

Configuration

Time Clock

 

 

Operating Modes

 

 

Alarms

 

 

Fig. 1 — Scrolling Marquee Display

Changing item values or testing outputs is accomplished in the same manner. Locate and display the desired item. Press ENTER so that the item value flashes. Use the arrow keys to change the value or state and press the ENTER key to accept it. Press the ESCAPE key to return to the next higher level of structure. Repeat the process as required for other items.

Items in the Configuration and Service Test modes are password protected. The words ‘PASS’ and ‘WORD’ will alternate on the display when required. The default password is 0111. Press ENTER and the 1111 password will be displayed. Press

ENTER again and the first digit will begin to flash. Use the arrow keys to change the number and press ENTER to accept

the digit. Continue with the remaining digits of the password. The password can only be changed through CCN operator interface software such as ComfortWORKS®, ComfortVIEW™ and Service Tool.

See Tables 2-14 and Appendix A for further details.

ACCESSORY NAVIGATOR™ DISPLAY MODULE — The Navigator module provides a mobile user interface to the

ComfortLink™ control system, which is only available as a field-installed accessory. The display has up and down arrow keys, an ENTER key, and an ESCAPE key. These keys are used to navigate through the different levels of the display structure. Press the ESCAPE key until ‘Select a Menu Item’ is displayed to move through the top 11 mode levels indicated by LEDs on the left side of the display. See Fig. 2.

Once within a Mode or sub-mode, a “>” indicates the currently selected item on the display screen. Pressing the ENTER and ESCAPE keys simultaneously will put the Navigator module into expanded text mode where the full meaning of all sub-modes, items and their values can be displayed. Pressing the ENTER and ESCAPE keys when the display says ‘Select Menu Item’ (Mode LED level) will return the Navigator module to its default menu of rotating display items (those items in Run Status VIEW). In addition, the password will be disabled, requiring that it be entered again before changes can be made to password protected items. Press the ESCAPE key to exit out of the expanded text mode.

NOTE: When the Language Selection (Configuration DISP LANG), variable is changed, all appropriate display expansions will immediately change to the new language. No power-off or control reset is required when reconfiguring languages.

When a specific item is located, the item name appears on the left of the display, the value will appear near the middle of the display and the units (if any) will appear on the far right of the display. Press the ENTER key at a changeable item and the value will begin to flash. Use the up and down arrow keys to change the value, and confirm the value by pressing the ENTER key.

Changing item values or testing outputs is accomplished in the same manner. Locate and display the desired item. Press ENTER so that the item value flashes. Use the arrow keys to change the value or state and press the ENTER key to accept it. Press the ESCAPE key to return to the next higher level of structure. Repeat the process as required for other items.

Items in the Configuration and Service Test modes are password protected. The words Enter Password will be displayed when required, with 1111 also being displayed. The default password is 1111. Use the arrow keys to change the number

3

and press ENTER to enter the digit. Continue with the remaining digits of the password. The password can only be changed through CCN operator interface software such as ComfortWORKS, ComfortVIEW and Service Tool.

Adjusting the Contrast — The contrast of the display can be adjusted to suit ambient conditions. To adjust the contrast of the Navigator module, press the ESCAPE key until the display reads, “Select a menu item.” Using the arrow keys move to the Configuration mode. Press ENTER to obtain access to this mode. The display will read:

> TEST OFF

METR OFF LANG ENGLISH

Pressing ENTER will cause the “OFF” to flash. Use the up or down arrow to change “OFF” to “ON”. Pressing ENTER will illuminate all LEDs and display all pixels in the view screen. Pressing ENTER and ESCAPE simultaneously allows the user to adjust the display contrast. Use the up or down arrows to adjust the contrast. The screen’s contrast will change with the adjustment. Press ENTER to accept the change. The Navigator module will keep this setting as long as it is plugged in to the LEN bus.

Adjusting the Backlight Brightness — The backlight of the display can be adjusted to suit ambient conditions. The factory default is set to the highest level. To adjust the backlight of the Navigator module, press the ESCAPE key until the display reads, “Select a menu item.” Using the arrow keys move to the

Configuration mode. Press ENTER to obtain access to this mode. The display will read:

> TEST OFF

METR OFF LANG ENGLISH

Pressing ENTER will cause the “OFF” to flash. Use the up or down arrow keys to change “OFF” to “ON”. Pressing ENTER will illuminate all LEDs and display all pixels in the view screen. Pressing the up and down arrow keys simultaneously allows the user to adjust the display brightness. Use the up or down arrow keys to adjust screen brightness. Press ENTER to accept the change. The Navigator module will keep this setting as long as it is plugged in to the LEN bus.

 

 

 

 

Comfort

 

 

 

 

 

Link

 

MODE

 

 

 

 

Run

Status

Alarm

Status

 

Service Test

 

 

 

PTemperatures

 

 

 

ressures

 

 

 

Setpoints

 

 

 

Inputs

 

 

 

Outputs

 

 

 

Configuration

 

 

Time

Clock

 

ESC

 

Operating

Modes

 

Alarms

 

 

 

 

 

 

 

 

ENTER

 

 

 

Fig. 2 — Accessory Navigator™ Display Module

Table 2 — Scrolling Marquee Display Menu Structure*

MODE

RUN

SERVICE

TEMPERATURES

PRESSURES

SET

INPUTS

OUTPUTS

CONFIGURATION

TIME

OPERATING

ALARMS

STATUS

TEST

POINTS

CLOCK

MODES

 

Auto

Service

 

Pressures

Cooling

General

General

Display

Time of

 

 

 

View of

Unit Temperatures

Modes

Current

 

Test Mode

Circuit A

Setpoints

Inputs

Outputs

Configuration

Day

 

Run Status

(UNIT)

(MODE)

(CRNT)

 

(TEST)

(PRC.A)

(COOL)

(GEN.I)

(GEN.O)

(DISP)

(TIME)

 

(VIEW)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Unit Run

Outputs

Temperatures

 

Head

Circuit

Outputs

Unit

Month,

 

Reset

 

Hour and

 

Pressure

Date, Day,

 

 

and Pumps

Circuit A

 

Inputs

Circuit A

Configuration

 

Alarms

 

Start

 

Setpoint

and Year

 

 

(OUTS)

(CIR.A)

 

(CRCT)

(CIR.A)

(UNIT)

 

(RCRN)

 

(RUN)

 

(HEAD)

(DATE)

 

 

 

 

 

 

 

 

 

 

 

Circuit and

Ciruit A Comp

 

 

Brine

4-20mA

 

Unit Options 1

Daylight

 

Alarm

 

Compressor

 

 

Freeze

 

Savings

 

 

Run Hours

Test

 

 

Setpoint

Inputs

 

Hardware

Time

 

History

 

(CMPA)

 

 

(4-20)

 

(OPT1)

 

(HIST)

 

(HOUR)

 

 

(FRZ)

 

(DST)

 

 

 

 

 

 

 

 

 

 

 

Compressor

 

 

 

 

 

 

Unit Options 2

Local

 

 

 

 

 

 

 

 

 

Holiday

 

 

 

Starts

 

 

 

 

 

 

Controls

 

 

 

 

 

 

 

 

 

Schedules

 

 

 

(STRT)

 

 

 

 

 

 

(OPT2)

 

 

 

 

 

 

 

 

 

(HOL.L)

 

 

 

 

 

 

 

 

 

 

 

 

 

SUB-MODE

Preventive

 

 

 

 

 

 

CCN Network

Schedule

 

 

 

Maintenance

 

 

 

 

 

 

Configuration

Number

 

 

 

(PM)

 

 

 

 

 

 

(CCN)

(SCH.N)

 

 

 

 

 

 

 

 

 

 

 

Local

 

 

 

Software

 

 

 

 

 

 

Reset Cool Temp

Occu-

 

 

 

Version

 

 

 

 

 

 

pancy

 

 

 

 

 

 

 

 

 

(RSET)

 

 

 

(VERS)

 

 

 

 

 

 

Schedule

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(SCH.L)

 

 

 

 

 

 

 

 

 

 

Set Point and

Schedule

 

 

 

 

 

 

 

 

 

 

Ramp Load

Override

 

 

 

 

 

 

 

 

 

 

(SLCT)

(OVR)

 

 

 

 

 

 

 

 

 

 

Service

 

 

 

 

 

 

 

 

 

 

 

Configuration

 

 

 

 

 

 

 

 

 

 

 

(SERV)

 

 

 

 

 

 

 

 

 

 

 

Broadcast

 

 

 

 

 

 

 

 

 

 

 

Configuration

 

 

 

 

 

 

 

 

 

 

 

(BCST)

 

 

 

LEGEND

 

 

 

 

 

For example, using the language selection item:

 

 

Ckt — Circuit

 

 

 

 

 

Language Selection (Configuration DISP LANG)

 

*Throughout this text, the location of items in the menu structure will be described in the following format:

Item Expansion (Mode Name Sub-mode Name ITEM)

4

Table 3 — Run Status Mode and Sub-Mode Directory

SUB-MODE

KEYPAD

ITEM

DISPLAY

SUB-ITEM

DISPLAY

SUB-ITEM

DISPLAY

ITEM

 

COMMENT

 

ENTRY

 

 

 

 

 

 

EXPANSION

 

 

VIEW

 

 

 

EWT

XXX.X F

 

 

 

 

ENTERING FLUID TEMP

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LWT

XXX.X F

 

 

 

 

LEAVING FLUID TEMP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SETP

XXX.X F

 

 

 

 

ACTIVE SETPOINT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CTPT

XXX.X F

 

 

 

 

CONTROL POINT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOD.F

XXX

 

 

 

 

LOAD/UNLOAD FACTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STAT

X

 

 

 

 

CONTROL MODE

0

= Service Test

 

 

 

 

 

 

 

 

 

 

 

1

= Off Local

 

 

 

 

 

 

 

 

 

 

 

2

= Off CCN

 

 

 

 

 

 

 

 

 

 

 

3

= Off Time

 

 

 

 

 

 

 

 

 

 

 

4

= Off Emrgcy

 

 

 

 

 

 

 

 

 

 

 

5

= On Local

 

 

 

 

 

 

 

 

 

 

 

6

= On CCN

 

 

 

 

 

 

 

 

 

 

 

7

= On Time

 

 

 

 

 

 

 

 

 

 

 

8

= Ht Enabled

 

 

 

 

 

 

 

 

 

 

 

9

= Pump Delay

 

 

 

 

OCC

YES/NO

 

 

 

 

OCCUPIED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MODE

YES/NO

 

 

 

 

OVERRIDE MODES IN EFFECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAP

XXX %

 

 

 

 

PERCENT TOTAL CAPACITY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STGE

X

 

 

 

 

REQUESTED STAGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALRM

XXX

 

 

 

 

CURRENT ALARMS & ALERTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TIME

XX.XX

 

 

 

 

TIME OF DAY

 

00.00-23.59

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MNTH

XX

 

 

 

 

MONTH OF YEAR

1 = January, 2 = February, etc.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DATE

XX

 

 

 

 

DAY OF MONTH

 

01-31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YEAR

XX

 

 

 

 

YEAR OF CENTURY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RUN

 

 

HRS.U

XXXX HRS

 

 

 

 

MACHINE OPERATING HOURS

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STR.U

XXXX

 

 

 

 

MACHINE STARTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HR.P1

XXXX.X

 

 

 

 

PUMP 1 RUN HOURS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HR.P2

XXXX.X

 

 

 

 

PUMP 2 RUN HOURS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOUR

 

 

HR.A1

XXXX HRS

 

 

 

 

COMPRESSOR A1 RUN HOURS

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HR.A2

XXXX HRS

 

 

 

 

COMPRESSOR A2 RUN HOURS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HR.A3

XXXX HRS

 

 

 

 

COMPRESSOR A3 RUN HOURS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STRT

 

 

ST.A1

XXXX

 

 

 

 

COMPRESSOR A1 STARTS

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ST.A2

XXXX

 

 

 

 

COMPRESSOR A2 STARTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ST.A3

XXXX

 

 

 

 

COMPRESSOR A3 STARTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PM

 

 

STRN

 

 

 

 

 

STRAINER MAINTENANCE

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SI.ST

XXXX HRS

 

 

STRAINER SRVC INTERVAL

 

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S.T.DN

XXXX HRS

 

 

STRAINER SRVC COUNTDOWN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S.T.MN

YES/NO

 

 

STRAINER MAINT. DONE

 

User Entry

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ST.DT

 

 

 

STRAINER MAINT. DATES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S.T.M0

 

MM/DD/YY HH:MM

 

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S.T.M1

 

MM/DD/YY HH:MM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S.T.M2

 

MM/DD/YY HH:MM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S.T.M3

 

MM/DD/YY HH:MM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S.T.M4

 

MM/DD/YY HH:MM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

Table 3 — Run Status Mode and Sub-Mode Directory (cont)

SUB-MODE

KEYPAD

 

ITEM

DISPLAY

SUB-ITEM

DISPLAY

SUB-ITEM

DISPLAY

ITEM

COMMENT

 

 

ENTRY

 

 

 

 

 

 

 

EXPANSION

 

VERS

 

 

 

 

 

AUX

 

 

 

 

 

CESR131333-xx-xx

xx-xx is Version number*

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MBB

 

 

 

 

 

CESR131279-xx-xx

xx-xx is Version number*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EMM

 

 

 

 

 

CESR131174-xx-xx

xx-xx is Version number*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MARQ

 

 

 

 

 

CESR131171-xx-xx

xx-xx is Version number*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NAVI

 

 

 

 

 

CESR130227-xx-xx

xx-xx is Version number*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Press

ENTER

and

ESCAPE

simultaneously to obtain version number.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 4 — Service Test Mode and Sub-Mode Directory

SUB-MODE

KEYPAD

ITEM

DISPLAY

ITEM

COMMENT

ENTRY

EXPANSION

 

 

 

 

TEST

 

 

 

 

ON/OFF

SERVICE TEST MODE

To Enable Service Test Mode,

 

ENTER

 

 

 

 

 

 

 

 

move Enable/Off/Remote

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contact switch to OFF. Change

 

 

 

 

 

 

 

TEST to ON. Move switch to

 

 

 

 

 

 

 

ENABLE.

OUTS

 

 

 

 

 

OUTPUTS AND PUMPS

 

 

 

 

 

CLR.P

ON/OFF

COOLER PUMP RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

CND.P

ON/OFF

CONDENSER PUMP

 

 

 

 

 

 

 

 

 

 

 

 

 

UL.TM

0 to 15

COMP A1 UNLOAD TIME

 

 

 

 

 

 

 

 

 

 

 

 

 

CC.H

ON/OFF

CRANKCASE HEATER

 

 

 

 

 

 

 

 

 

 

 

 

 

CW.VO

ON/OFF

CONDENSER VALVE OPEN

 

 

 

 

 

 

 

 

 

 

 

 

 

CW.VC

ON/OFF

CONDENSER VALVE CLOSE

 

 

 

 

 

 

 

 

 

 

 

 

 

LL.SV

ON/OFF

LIQUID LINE SOLENOID

 

 

 

 

 

 

 

 

 

 

 

 

 

RMT.A

ON/OFF

REMOTE ALARM RELAY

 

 

 

 

 

 

 

 

 

CMPA

 

 

 

 

 

CIRCUIT A COMPRESSOR TEST

 

 

 

 

CC.A1

ON/OFF

COMPRESSOR A1 RELAY

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UL.TM

0 to 15

COMP A1 UNLOAD TIME

 

 

 

 

 

 

 

 

 

 

 

 

 

CC.A2

ON/OFF

COMPRESSOR A2 RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

CC.A3

ON/OFF

COMPRESSOR A3 RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

MLV

ON/OFF

MINIMUM LOAD VALVE RELAY

 

 

 

 

 

 

 

 

 

Table 5 — Temperature Mode and Sub-Mode Directory

SUB-MODE

KEYPAD

ITEM

DISPLAY

ITEM

COMMENT

ENTRY

EXPANSION

 

 

 

 

UNIT

 

 

 

 

 

ENT AND LEAVE UNIT TEMPS

 

 

 

 

 

CEWT

XXX.X F

COOLER ENTERING FLUID

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLWT

XXX.X F

COOLER LEAVING FLUID

 

 

 

 

 

 

 

 

 

 

 

 

 

CDET

XXX.X F

CONDENSER ENTERING FLUID

 

 

 

 

 

 

 

 

 

 

 

 

 

CDLT

XXX.X F

CONDENSER LEAVING FLUID

 

 

 

 

 

 

 

 

 

 

 

 

 

OAT

XXX.X F

OUTSIDE AIR TEMPERATURE

 

 

 

 

 

 

 

 

 

 

 

 

 

SPT

XXX.X F

SPACE TEMPERATURE

 

 

 

 

 

 

 

 

 

 

 

 

 

DLWT

XXX.X F

LEAD/LAG LEAVING FLUID

 

 

 

 

 

 

 

 

 

6

Table 5 — Temperature Mode and Sub-Mode Directory (cont)

SUB-MODE

KEYPAD

ITEM

DISPLAY

ITEM

COMMENT

ENTRY

EXPANSION

 

 

 

 

CIR.A

 

 

 

 

 

TEMPERATURES CIRCUIT A

 

 

 

 

 

SCT.A

XXX.X F

SATURATED CONDENSING TMP

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SST.A

XXX.X F

SATURATED SUCTION TEMP

 

 

 

 

 

 

 

 

 

 

 

 

 

RGT.A

XXX.X F

COMPR RETURN GAS TEMP

 

 

 

 

 

 

 

 

 

 

 

 

 

D.GAS

XXX.X F

DISCHARGE GAS TEMP

 

 

 

 

 

 

 

 

 

 

 

 

 

SH.A

XXX.X ^F

SUCTION SUPERHEAT TEMP

 

 

 

 

 

 

 

 

 

Table 6 — Pressure Mode and Sub-Mode Directory

SUB-MODE

KEYPAD

ITEM

DISPLAY

ITEM

COMMENT

ENTRY

EXPANSION

 

 

 

 

PRC.A

 

 

 

 

 

PRESSURES CIRCUIT A

 

 

 

 

 

DP.A

XXX.X PSIG

DISCHARGE PRESSURE

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SP.A

XXX.X PSIG

SUCTION PRESSURE

 

 

 

 

 

 

 

 

 

Table 7 — Set Points Mode and Sub-Mode Directory

SUB-MODE

KEYPAD

ITEM

DISPLAY

ITEM

COMMENT

ENTRY

EXPANSION

 

 

 

 

COOL

 

 

 

 

 

COOLING SETPOINTS

 

 

 

 

 

CSP.1

XXX.X F

COOLING SETPOINT 1

Default: 44 F

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CSP.2

XXX.X F

COOLING SETPOINT 2

Default: 44 F

 

 

 

 

 

 

 

 

 

 

 

 

CSP.3

XXX.X F

ICE SETPOINT

Default: 32 F

 

 

 

 

 

 

 

 

HEAD

 

 

 

 

 

HEAD PRESSURE SETPOINTS

 

 

 

 

H.DP

XXX.X F

HEAD SETPOINT

Default: 95 F

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FRZ

 

 

 

 

 

BRINE FREEZE SETPOINT

 

 

 

 

BR.FZ

XXX.X F

BRINE FREEZE POINT

Default: 34 F

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 8 — Inputs Mode and Sub-Mode Directory

SUB-MODE

KEYPAD

ITEM

DISPLAY

ITEM

COMMENT

ENTRY

EXPANSION

 

 

 

 

GEN.I

 

 

 

 

 

GENERAL INPUTS

 

 

 

 

 

STST

STRT/STOP

START/STOP SWITCH

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLOW

ON/OFF

COOLER FLOW SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

CD.FL

OPEN/CLSE

CONDENSER FLOW SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

DLS1

ON/OFF

DEMAND LIMIT SWITCH 1

 

 

 

 

 

 

 

 

 

 

 

 

 

DLS2

ON/OFF

DEMAND LIMIT SWITCH 2

 

 

 

 

 

 

 

 

 

 

 

 

 

ICED

ON/OFF

ICE DONE

 

 

 

 

 

 

 

 

 

 

 

 

 

DUAL

ON/OFF

DUAL SETPOINT SWITCH

 

 

 

 

 

 

 

 

 

CRCT

 

 

 

 

 

CIRCUITS INPUTS

 

 

 

 

FKA1

ON/OFF

COMPRESSOR A1 FEEDBACK

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FKA2

ON/OFF

COMPRESSOR A2 FEEDBACK

 

 

 

 

 

 

 

 

 

 

 

 

 

FKA3

ON/OFF

COMPRESSOR A3 FEEDBACK

 

 

 

 

 

 

 

 

 

4-20

 

 

 

 

 

4-20 MA INPUTS

 

 

 

 

DMND

XX.X MA

4-20 MA DEMAND SIGNAL

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RSET

XX.X MA

4-20 MA RESET SIGNAL

 

 

 

 

 

 

 

 

 

 

 

 

 

CSP

XX.X MA

4-20 MA COOLING SETPOINT

 

 

 

 

 

 

 

 

 

7

Table 9 — Outputs Mode and Sub-Mode Directory

SUB-MODE

KEYPAD

ITEM

DISPLAY

ITEM

COMMENT

ENTRY

EXPANSION

 

 

 

 

GEN.O

 

 

 

 

 

GENERAL OUTPUTS

 

 

 

 

 

C.LWP

ON/OFF

COOLER PUMP RELAY

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C.DWP

ON/OFF

CONDENSER PUMP

 

 

 

 

 

 

 

 

 

 

 

 

 

ALRM

ON/OFF

ALARM RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

CDWO

ON/OFF

CONDENSER VALVE OPEN

 

 

 

 

 

 

 

 

 

 

 

 

 

CDWC

ON/OFF

CONDENSER VALVE CLOSE

 

 

 

 

 

 

 

 

 

CIR.A

 

 

 

 

 

OUTPUTS CIRCUIT A

 

 

 

ENTER

 

CC.A1

ON/OFF

COMPRESSOR A1 RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D.SOL

ON/OFF

DIGITAL SCROLL SOLENOID

 

 

 

 

 

 

 

 

 

 

 

 

 

CC.A2

ON/OFF

COMPRESSOR A2 RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

CC.A3

ON/OFF

COMPRESSOR A3 RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

CCH

ON/OFF

CRANKCASE HEATER RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

LLSV

ON/OFF

LIQUID LINE SOLENOID

 

 

 

 

 

 

 

 

 

 

 

 

 

MLV.R

ON/OFF

MINIMUM LOAD VALVE RELAY

 

 

 

 

 

 

 

 

 

Table 10 — Configuration Mode and Sub-Mode Directory

SUB-MODE

KEYPAD

ITEM

DISPLAY

ITEM

COMMENT

ENTRY

EXPANSION

 

 

 

 

DISP

 

 

 

 

 

DISPLAY CONFIGURATION

 

 

 

 

 

TEST

ON/OFF

TEST DISPLAY LEDS

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

METR

ON/OFF

METRIC DISPLAY

Off = English

 

 

 

 

On = Metric

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LANG

X

LANGUAGE SELECTION

Default: 0

 

 

 

 

 

 

 

0 = English

 

 

 

 

 

 

 

1 = Espanol

 

 

 

 

 

 

 

2 = Francais

 

 

 

 

 

 

 

3 = Portuguese

 

 

 

 

PAS.E

ENBL/DSBL

PASSWORD ENABLE

Default: Enable

 

 

 

 

 

 

 

 

 

 

 

 

PASS

xxxx

SERVICE PASSWORD

Default: 1111

 

 

 

 

 

 

 

 

UNIT

 

 

 

 

UNIT CONFIGURATION

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TYPE

x

UNIT TYPE

2=WaterCooled

 

 

 

 

3=Split System

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SIZE

XX

UNIT SIZE

 

 

 

 

 

 

 

 

 

 

 

 

 

SZA.1

XX

COMPRESSOR A1 SIZE

Unit Dependent

 

 

 

 

 

 

 

 

 

 

 

 

SZA.2

XX

COMPRESSOR A2 SIZE

Unit Dependent

 

 

 

 

 

 

 

 

 

 

 

 

SZA.3

XX

COMPRESSOR A3 SIZE

Unit Dependent

 

 

 

 

 

 

 

 

 

 

 

 

A1.TY

No/Yes

COMPRESSOR A1 DIGITAL?

Default: Yes (A1 Digital Scroll)

 

 

 

 

 

 

 

 

 

 

 

 

MAX.T

0 to 15

MAXIMUM A1 UNLOAD TIME

Default: 7

 

 

 

 

 

 

 

 

8

Table 10 — Configuration Mode and Sub-Mode Directory (cont)

SUB-MODE

KEYPAD

ITEM

DISPLAY

ITEM

 

COMMENT

ENTRY

EXPANSION

 

 

 

 

 

 

OPT1

 

 

 

 

 

 

 

UNIT OPTIONS 1 HARDWARE

 

 

 

 

 

 

 

 

 

 

 

Default: Water

 

 

 

ENTER

 

 

FLUD

X

COOLER FLUID

1 = Water

 

 

 

 

 

 

 

 

 

2 = Medium Temperature Brine

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MLV.S

YES/NO

MINIMUM LOAD VALVE SELECT

Default: No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R.G.EN

ENBL/DSBL

RETURN GAS SENSOR ENABLE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OAT.E

ENBL/DSBL

ENABLE OAT SENSOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D.G.EN

ENBL/DSBL

DISCHARGE GAS TEMP ENABLE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CSB.E

ENBL/DSBL

CSB BOARDS ENABLE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPC

ON/OFF

COOLER PUMP CONTROL

Default: On

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PM.DY

XX MIN

COOLER PUMP SHUTDOWN DLY

0 to 10 minutes, Default: 1 min.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DPME

x

ENABLE CONDENSER PUMP

0 to 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DFLS

ENBL/DSBL

ENABLE COND FLOW SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CDWS

ENBL/DSBL

ENABLE COND WTR SENSORS

 

 

 

 

 

 

 

 

 

 

 

 

 

OPT2

 

 

 

 

 

 

 

UNIT OPTIONS 2 CONTROLS

 

 

 

 

 

 

 

 

CTRL

X

CONTROL METHOD

Default: Switch

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

0 = Enable/Off/Remote Switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 = Occupancy

 

 

 

 

 

 

 

 

 

3 = CCN Control

 

 

 

 

 

 

LCWT

XX.X F

HIGH LCW ALERT LIMIT

Default: 60

 

 

 

 

 

 

Range:

2 to 60 F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DELY

XX

MINUTES OFF TIME

Default: 0 Minutes

 

 

 

 

 

 

Range: 0 to 15 Minutes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ICE.M

ENBL/DSBL

ICE MODE ENABLE

Default: Disable

 

 

 

 

 

 

 

 

 

 

 

CCN

 

 

 

 

 

 

 

CCN NETWORK CONFIGURATION

 

 

 

 

 

 

 

 

CCNA

XXX

CCN ADDRESS

Default: 1

 

 

 

ENTER

 

 

Range:

1 to 239

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CCNB

XXX

CCN BUS NUMBER

Default: 0

 

 

 

 

 

 

Range:

0 to 239

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BAUD

X

CCN BAUD RATE

Default: 9600

 

 

 

 

 

 

 

 

 

1 = 2400

 

 

 

 

 

 

 

 

 

2 = 4800

 

 

 

 

 

 

 

 

 

3 = 9600

 

 

 

 

 

 

 

 

 

4 = 19,200

 

 

 

 

 

 

 

 

 

5 = 38,400

RSET

 

 

 

 

 

 

 

RESET COOL TEMP

 

 

 

 

 

 

 

 

CRST

X

COOLING RESET TYPE

Default: No Reset

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

0 = No Reset

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 = 4 to 20 mA Input

 

 

 

 

 

 

 

 

 

2 = Outdoor Air Temperature

 

 

 

 

 

 

 

 

 

3 = Return Fluid

 

 

 

 

 

 

 

 

 

4 = Space Temperature

 

 

 

 

 

 

MA.DG

XX.X F

4-20 - DEGREES RESET

Default: 0.0 F

 

 

 

 

 

 

Range: –30 to 30 F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RM.NO

XXX.X F

REMOTE - NO RESET TEMP

Default: 125 F (51.7 C)

 

 

 

 

 

 

Range: 0° to 125 F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RM.F

XXX.X F

REMOTE - FULL RESET TEMP

Default: 0.0 F (-17.8 C)

 

 

 

 

 

 

Range:

0 to 125 F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RM.DG

XX.X F

REMOTE - DEGREES RESET

Default: 0.0 F

 

 

 

 

 

 

Range: –30 to 30 F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RT.NO

XXX.X F

RETURN - NO RESET TEMP

Default: 10.0 F (5.6 C)

 

 

 

 

 

 

Range:

0 to 125 F COOLER T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RT.F

XXX.X F

RETURN - FULL RESET TEMP

Default: 0.0 F (0.0 C)

 

 

 

 

 

 

Range:

0 to 125 F COOLER T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RT.DG

XX.X F

RETURN - DEGREES RESET

Default: 0.0 F

 

 

 

 

 

 

Range: –30 to 30 F (–34.4 to -1.1 C)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DMDC

X

DEMAND LIMIT SELECT

Default: None

 

 

 

 

 

 

 

 

 

0 = None

 

 

 

 

 

 

 

 

 

1 = Switch

 

 

 

 

 

 

 

 

 

2 = 4 to 20 mA Input

 

 

 

 

 

 

 

 

 

3 = CCN Loadshed

 

 

 

 

 

 

DM20

XXX %

DEMAND LIMIT AT 20 MA

Default: 100%

 

 

 

 

 

 

Range:

0 to 100%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SHNM

XXX

LOADSHED GROUP NUMBER

Default:

0

 

 

 

 

 

 

Range:

0 to 99

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SHDL

XXX %

LOADSHED DEMAND DELTA

Default:

0%

 

 

 

 

 

 

Range:

0 to 60%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SHTM

XXX

MAXIMUM LOADSHED TIME

Default:

60 minutes

 

 

 

 

 

 

Range: 0 to 120 minutes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DLS1

XXX %

DEMAND LIMIT SWITCH 1

Default:

80%

 

 

 

 

 

 

Range:

0 to 100%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DLS2

XXX %

DEMAND LIMIT SWITCH 2

Default:

50%

 

 

 

 

 

 

Range:

0 to 100%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

Table 10 — Configuration Mode and Sub-Mode Directory (cont)

SUB-MODE

KEYPAD

ITEM

DISPLAY

ITEM

 

COMMENT

ENTRY

EXPANSION

 

 

 

 

 

 

 

 

 

 

 

 

LLEN

ENBL/DSBL

LEAD/LAG CHILLER ENABLE

Default: Disable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MSSL

SLVE/MAST

MASTER/SLAVE SELECT

Default: Master

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SLVA

XXX

SLAVE ADDRESS

Default:

0

 

 

 

 

 

 

Range:

0 to 239

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RSET

 

 

ENTER

 

 

 

 

 

Default: Master Leads

 

 

 

 

 

LLBL

X

LEAD/LAG BALANCE SELECT

0 = Master Leads

 

 

 

 

 

(cont)

 

 

 

 

 

1 = Slave Leads

 

 

 

 

 

 

 

 

 

2 = Automatic

 

 

 

 

 

 

LLBD

XXX

LEAD/LAG BALANCE DELTA

Default:

168 hours

 

 

 

 

 

 

Range:

40 to 400 hours

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LLDY

XXX

LAG START DELAY

Default:

5 minutes

 

 

 

 

 

 

Range:

0 to 30 minutes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PARA

YES

PARALLEL CONFIGURATION

Default: YES (CANNOT BE CHANGED)

 

 

 

 

 

 

 

 

 

 

 

SLCT

 

 

 

 

 

 

 

SETPOINT AND RAMP LOAD

 

 

 

 

 

 

 

 

CLSP

X

COOLING SETPOINT SELECT

Default: Single

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

0 = Single

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 = Dual Switch

 

 

 

 

 

 

 

 

 

2 = Dual CCN Occupied

 

 

 

 

 

 

 

 

 

3 = 4 to 20 mA Input (requires

 

 

 

 

 

 

 

 

 

EMM)

 

 

 

 

 

 

RL.S

ENBL/DSBL

RAMP LOAD SELECT

Default: Enable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CRMP

X.X

COOLING RAMP LOADING

Default:

1.0

 

 

 

 

 

 

Range:

0.2 to 2.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCHD

XX

SCHEDULE NUMBER

Default:

1

 

 

 

 

 

 

Range:

1 to 99

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Z.GN

X.X

DEADBAND MULTIPLIER

Default:

1.0

 

 

 

 

 

 

Range:

1.0 to 4.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SERV

 

 

 

 

 

 

 

SERVICE CONFIGURATION

 

 

 

 

 

 

EN.A1

ENBL/DSBL

ENABLE COMPRESSOR A1

Unit dependent

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EN.A2

ENBL/DSBL

ENABLE COMPRESSOR A2

Unit dependent

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EN.A3

ENBL/DSBL

ENABLE COMPRESSOR A3

Unit dependent

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REV.R

ENBL/DSBL

REVERSE ROTATION ENABLE

Default: Enable

 

 

 

 

 

 

 

 

 

 

 

BCST

 

 

 

 

 

 

 

BROADCAST CONFIGURATION

 

 

 

 

 

 

T.D.BC

ON/OFF

CCN TIME/DATE BROADCAST

 

 

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OAT.B

ON/OFF

CCN OAT BROADCAST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G.S.BC

ON/OFF

GLOBAL SCHEDULE BROADCAST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BC.AK

ON/OFF

CCN BROADCAST ACK’ER

 

 

 

 

 

 

 

 

 

 

 

 

 

10

Table 11 — Time Clock Mode and Sub-Mode Directory

SUB-MODE

KEYPAD

ITEM

DISPLAY

SUB-ITEM

DISPLAY

ITEM

COMMENT

ENTRY

EXPANSION

 

 

 

 

 

 

TIME

 

 

 

 

 

 

 

TIME OF DAY

 

 

 

 

 

HH.MM

XX.XX

 

 

HOUR AND MINUTE

Military (00:00 – 23:59)

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DATE

 

 

 

 

 

 

 

MONTH,DATE,DAY AND YEAR

 

 

 

 

MNTH

XX

 

 

MONTH OF YEAR

1-12 (1 = January, 2 = February, etc)

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DOM

XX

 

 

DAY OF MONTH

Range: 01-31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DAY

X

 

 

DAY OF WEEK

1-7 (1 = Monday, 2 = Tuesday, etc)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YEAR

XXXX

 

 

YEAR OF CENTURY

 

 

 

 

 

 

 

 

 

 

 

DST

 

 

 

 

 

 

 

DAYLIGHT SAVINGS TIME

 

 

 

 

STR.M

XX

 

 

MONTH

Default: 4, Range 1 – 12

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STR.W

X

 

 

WEEK

Default: 1, Range 1 – 5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STR.D

X

 

 

DAY

Default: 7, Range 1 – 7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MIN.A

XX

 

 

MINUTES TO ADD

Default: 60, Range 0 – 99

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STP.M

XX

 

 

MONTH

Default: 10, Range 1 – 12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STP.W

XX

 

 

WEEK

Default: 5, Range 1 – 5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STP.D

XX

 

 

DAY

Default: 7, Range 1 – 7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MIN.S

XX

 

 

MINUTES TO SUBTRACT

Default: 60, Range 0 – 99

 

 

 

 

 

 

 

 

 

 

HOL.L

 

 

 

 

 

 

 

LOCAL HOLIDAY SCHEDULES

HD.01 through HD.30

 

 

 

MON

XX

 

 

HOLIDAY START MONTH

Range 0 – 12

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DAY

XX

 

 

START DAY

Range 0 – 31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEN

XX

 

 

DURATION (DAYS)

Range 0 - 99

 

 

 

 

 

 

 

 

 

 

SCH.N

 

 

 

 

XX

 

 

SCHEDULE NUMBER

Default: 1, Range 1 – 99

 

 

 

 

 

 

 

 

 

 

SCH.L

 

 

 

 

 

 

 

LOCAL OCCUPANCY SCHEDULE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PER.1

 

 

 

OCCUPANCY PERIOD 1*

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OCC.1

XX:XX

PERIOD OCCUPIED TIME

Military (00:00 – 23:59)

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UNC.1

XX.XX

PERIOD UNOCCUPIED TIME

Military (00:00 – 23:59)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MON.1

YES/NO

MONDAY IN PERIOD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TUE.1

YES/NO

TUESDAY IN PERIOD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WED.1

YES/NO

WEDNESDAY IN PERIOD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

THU.1

YES/NO

THURSDAY IN PERIOD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FRI.1

YES/NO

FRIDAY IN PERIOD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SAT.1

YES/NO

SATURDAY IN PERIOD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SUN.1

YES/NO

SUNDAY IN PERIOD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOL.1

YES/NO

HOLIDAY IN PERIOD

 

 

 

 

 

 

 

 

 

 

 

OVR

 

 

 

 

 

 

 

SCHEDULE OVERRIDE

 

 

 

 

OVR.T

X

 

 

TIMED OVERRIDE HOURS

Default: 0, Range 0-4 hours

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OVR.L

X

 

 

OVERRIDE TIME LIMIT

Default: 0, Range 0-4 hours

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T.OVR

YES/NO

 

 

TIMED OVERRIDE

User Entry

 

 

 

 

 

 

 

 

 

 

* Repeats for Occupancy Periods 2 through 8.

11

Table 12 — Operating Mode and Sub-Mode Directory

 

SUB-MODE

 

KEYPAD

 

ITEM

DISPLAY

ITEM

COMMENT

 

 

ENTRY

 

EXPANSION

 

 

 

 

 

 

 

 

 

MODE

 

 

 

 

 

 

 

MODES CONTROLLING UNIT

 

 

 

 

 

 

 

 

 

MD01

ON/OFF

CSM CONTROLLING CHILLER

 

 

 

 

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD03

ON/OFF

MASTER/SLAVE CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD05

ON/OFF

RAMP LOAD LIMITED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD06

ON/OFF

TIMED OVERRIDE IN EFFECT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD07

ON/OFF

LOW COOLER SUCTION TEMPA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD09

ON/OFF

SLOW CHANGE OVERRIDE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD10

ON/OFF

MINIMUM OFF TIME ACTIVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD13

ON/OFF

DUAL SETPOINT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD14

ON/OFF

TEMPERATURE RESET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD15

ON/OFF

DEMAND LIMITED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD16

ON/OFF

COOLER FREEZE PROTECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD17

ON/OFF

LOW TEMPERATURE COOLING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD18

ON/OFF

HIGH TEMPERATURE COOLING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD19

ON/OFF

MAKING ICE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD20

ON/OFF

STORING ICE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD21

ON/OFF

HIGH SCT CIRCUIT A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD23

ON/OFF

MINIMUM COMP ON TIME

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MD24

ON/OFF

PUMP OFF DELAY TIME

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEGEND

 

 

 

 

CSM

Chillervisor System Manager

 

 

 

 

SCT

Saturated Condensing Temperature

 

 

 

 

WSM

Water System Manager

 

 

 

 

Table 13 — Alarms Mode and Sub-Mode Directory

SUB-MODE

KEYPAD

ITEM

ITEM

COMMENT

ENTRY

EXPANSION

 

 

 

CRNT

 

 

 

AXXX OR TXXX

CURRENTLY ACTIVE ALARMS

Alarms are shown as AXXX.

 

ENTER

 

 

 

Alerts are shown as TXXX.

 

 

 

 

 

 

 

 

 

 

 

 

 

RCRN

 

 

YES/NO

RESET ALL CURRENT ALARMS

 

 

ENTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HIST

 

 

 

AXXX OR TXXX

ALARM HISTORY

Alarms are shown as AXXX.

 

ENTER

 

 

 

Alerts are shown as TXXX.

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

Table 14 — Operating Modes

 

 

 

MODE

ITEM EXPANSION

DESCRIPTION

NO.

 

 

01

CSM CONTROLLING CHILLER

Chillervisor System Manager (CSM) is controlling the chiller.

 

 

 

03

MASTER/SLAVE CONTROL

Dual Chiller control is enabled.

 

 

 

 

RAMP LOAD LIMITED

Ramp load (pull-down) limiting in effect. In this mode, the rate at which leaving fluid temperature

05

 

is dropped is limited to a predetermined value to prevent compressor overloading. See Cooling

 

Ramp Loading (Configuration SLCT CRMP). The pull-down limit can be modified, if

 

 

desired, to any rate from 0.2° F to 2° F (0.1° to 1° C)/minute.

06

TIMED OVERRIDE IN EFFECT

Timed override is in effect. This is a 1 to 4 hour temporary override of the programmed

 

schedule, forcing unit to Occupied mode. Override can be implemented with unit under

 

 

Local (Enable) or CCN (Carrier Comfort Network®) control. Override expires after each use.

 

LOW COOLER SUCTION TEMPA

Circuit A cooler Freeze Protection mode. At least one compressor must be on, and the Sat-

 

 

urated Suction Temperature is not increasing greater than 1.1° F (0.6° C) in 10 seconds. If

 

 

the saturated suction temperature is less than the Brine Freeze Point (Set Points FRZ

07

 

BR.FZ) minus 6° F (3.4° C) and less than the leaving fluid temperature minus 14° F

 

(7.8° C) for 2 minutes, a stage of capacity will be removed from the circuit. Or, If the satu-

 

 

 

 

rated suction temperature is less than the Brine Freeze Point minus 14° F (7.8° C), for

 

 

90 seconds, a stage of capacity will be removed from the circuit. The control will continue to

 

 

decrease capacity as long as either condition exists.

 

 

 

09

SLOW CHANGE OVERRIDE

Slow change override is in effect. The leaving fluid temperature is close to and moving

 

towards the control point.

 

 

10

MINIMUM OFF TIME ACTIVE

Chiller is being held off by Minutes Off Time (Configuration OPT2 DELY).

 

DUAL SETPOINT

Dual Set Point mode is in effect. Chiller controls to Cooling Set Point 1 (Set Points COOL

13

 

CSP.1) during occupied periods and Cooling Set Point 2 (Set Points COOL CSP.2)

 

 

during unoccupied periods.

 

TEMPERATURE RESET

Temperature reset is in effect. In this mode, chiller is using temperature reset to adjust leav-

14

 

ing fluid set point upward and is currently controlling to the modified set point. The set point

 

can be modified based on return fluid, outdoor-air-temperature, space temperature, or 4 to

 

 

 

 

20 mA signal.

 

 

 

 

DEMAND LIMITED

Demand limit is in effect. This indicates that the capacity of the chiller is being limited by

15

 

demand limit control option. Because of this limitation, the chiller may not be able to pro-

 

duce the desired leaving fluid temperature. Demand limit can be controlled by switch inputs

 

 

 

 

or a 4 to 20 mA signal.

 

 

 

16

COOLER FREEZE PROTECTION

Cooler fluid temperatures are approaching the Freeze point (see Alarms and Alerts section

 

for definition). The chiller will be shut down when either fluid temperature falls below the

 

 

Freeze point.

 

 

 

17

LOW TEMPERATURE COOLING

Chiller is in Cooling mode and the rate of change of the leaving fluid is negative and

 

decreasing faster than -0.5° F per minute. Error between leaving fluid and control point

 

 

exceeds fixed amount. Control will automatically unload the chiller if necessary.

18

HIGH TEMPERATURE COOLING

Chiller is in Cooling mode and the rate of change of the leaving fluid is positive and increasing.

 

Error between leaving fluid and control point exceeds fixed amount. Control will automatically

 

 

load the chiller if necessary to better match the increasing load.

 

 

 

19

MAKING ICE

Chiller is in an unoccupied mode and is using Cooling Set Point 3 (Set Points COOL

 

CSP.3) to make ice. The ice done input to the Energy Management Module (EMM) is open.

20

STORING ICE

Chiller is in an unoccupied mode and is controlling to Cooling Set Point 2 (Set Points COOL

 

CSP.2). The ice done input to the Energy Management Module (EMM) is closed.

 

HIGH SCT CIRCUIT A

Chiller is in a Cooling mode and the Saturated Condensing Temperature (SCT) is greater than

21

 

the calculated maximum limit. No additional stages of capacity will be added. Chiller capacity

 

may be reduced if SCT continues to rise to avoid high-pressure switch trips by reducing con-

 

 

 

 

densing temperature.

 

 

 

23

MINIMUM COMP ON TIME

Cooling load may be satisfied, however control continues to operate compressor to ensure

 

proper oil return. May be an indication of oversized application, low fluid flow rate or low loop

 

 

volume.

 

PUMP OFF DELAY TIME

Cooling load is satisfied, however cooler pump continues to run for the number of minutes set

24

 

by the configuration variable Cooler Pump Shutdown Delay (Configuration OPT1

 

 

PM.DY).

13

CONTROLS

General — The 30MP liquid scroll chillers contain the ComfortLink™ electronic control system that controls and monitors all operations of the chiller.

The control system is composed of several components as listed in the sections below. See Fig. 3 for a typical control box drawing. See Fig. 4 and 5 for control schematics.

Main Base Board (MBB) — See Fig. 6. The MBB is the heart of the ComfortLink control system. It contains the major portion of operating software and controls the operation of the machine. The MBB continuously monitors input/output channel information received from its inputs and from all other modules. The MBB receives inputs from the discharge and suction pressure transducers and thermistors. See Table 15. The MBB also receives the feedback inputs from each compressor current sensor board and other status switches. See Table 16. The MBB also controls several outputs. Relay outputs controlled by the MBB are shown in Table 17. 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 the LVT (low voltage terminal).

Energy Management Module (EMM) — The EMM module is available as a factory-installed option or as a fieldinstalled accessory. The EMM module receives 4 to 20 mA inputs for the leaving fluid temperature reset, cooling set point and demand limit functions. The EMM module also receives the switch inputs for the field-installed 2-stage demand limit and ice done functions. The EMM module communicates the status of all inputs with the MBB, and the MBB adjusts the control point, capacity limit, and other functions according to the inputs received.

Current Sensor Board (CSB) — The CSB is used to monitor the status of the compressors by measuring current and providing an analog input to the main base board (MBB).

Enable/Off/Remote Contact Switch — The Enable/ Off/Remote Contact switch is a 3-position switch used to control the chiller. When switched to the Enable position the chiller is under its own control. Move the switch to the Off position to shut the chiller down. Move the switch to the Remote Contact position and a field-installed dry contact can be used to start 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, CCN configuration and set point data. See Fig. 7.

Emergency On/Off Switch — The Emergency On/Off switch should only be used when it is required to shut the chiller off immediately. Power to the MBB, EMM, and marquee display is interrupted when this switch is off and all outputs from these modules will be turned off. See Fig. 7.

Board Addresses — The main base board (MBB) has a 3-position instance jumper that must be set to ‘1.’ The EMM board has 4-position DIP switches. All switches are set to ‘On’ for all boards except the AUX2 board. The AUX2 board DIP switch settings are shown on the wiring schematic.

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 should be blinking 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. Be sure that

the main base board (MBB) is supplied with the current software. If necessary, reload current software. If the problem still persists, replace the MBB. 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 — The MBB has one green LED. The Local Equipment Network (LEN) LED should always be blinking whenever power is on. All other boards have a LEN LED which should be blinking whenever power is on. Check LEN connections for potential communication errors at the board J3 and/or J4 connectors. Communication between modules is accomplished by a 3-wire sensor bus. These 3 wires run in parallel from module to module. The J4 connector on the MBB provides both power and communication directly to the marquee display only.

YELLOW LED — The MBB has one yellow LED. The Carrier Comfort Network (CCN) LED will blink during times of network communication.

Carrier Comfort Network® (CCN) Interface —

The 30MP chiller units can be connected to the CCN if desired. The communication bus wiring is a shielded, 3-conductor cable with drain wire and is supplied and installed in the field. See Table 18. 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. This is also required for the negative and signal ground pins of each system element. Wiring connections for CCN should be made at LVT. Consult the CCN Contractor’s Manual for further information.

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. Wire manufactured by Alpha (2413 or 5463), American (A22503), Belden (8772), or Columbia (02525) meets the above mentioned requirements.

It is important when connecting to a CCN communication 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 LVT of the plug, the white wire to COM terminal, and the black wire to the

(–) terminal.

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

14

 

LEGEND FOR FIG. 3-5

ALMR

Alarm Relay

AUX

Auxilliary

C

Contactor, Compressor

CB

Circuit Breaker

CCB

Compressor Circuit Breaker

CH

Crankcase Heater

CCH

Crankcase Heater Relay

COMP

Compressor

CR

Control Relay

CSB

Current Sensor Board

CWFS

Chilled Water Flow Switch

CWP

Chilled Water Pump

DGS

Digital Scroll Compressor

DPT

Discharge Pressure Transducer

DTT

Discharge Temperature Thermistor

DUS

Digital Unloader Solenoid

EMM

Energy Management

EWT

Entering Water Temperature

FB

Fuse Block

FIOP

factory Installed Option

FU

Fuse

GND

Ground

HPS

High-Pressure Switch

LLSV

Liquid Line Solenoid Valve

LON

Local Operating Network

LVT

Low Voltage Terminal

LWT

Leaving Water Temperature

MBB

Main Base Board

MLV

Minimum Load Valve

MP

Modular Motor Protection

NEC

National Electrical Code

OAT

Outdoor-Air Thermistor

PL

Plug

RLY

Relay

SPT

Suction Pressure Transducer

SW

Switch

TB

Terminal Block

TRAN

Transformer

UPC

Unitary Protocol Converter

 

Terminal Block

 

Terminal (Unmarked)

 

Terminal (Marked)

 

Splice

 

Factory Wiring

 

Field Wiring

 

Accessory or Option Wiring

 

To indicate common potential only; not to represent wiring.

15

EQUIP

 

UPC LON

UPC

GND

TB3

OPTION

 

 

DISCONNECT OPTION CB1A/TB1A

L1

L2

L3

2

4

6

 

TRAN1

 

 

 

25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9

8

7

6

5

4

3

2

1

 

 

LVT

 

 

 

 

 

 

 

 

 

CCB-1

CCB-2

CCB-3

 

 

 

 

 

 

 

 

 

 

 

EMM

 

 

 

 

 

 

 

 

 

CSB-A1

CSB-A2

CSB-A3

 

 

 

 

 

 

 

 

 

 

 

CCH

CA1

CA2

CA3

 

 

MBB

FB1

 

 

LOCATED OVER EMM

CB1

CB2

CB3

REMOTE

 

 

CONTROL

OFF

SW1

OFF

SW2

ENABLE

ON

Fig. 3 — Typical Control Box — 30MP015-045 Units

a30-4963

16

Carrier MPW015-045 User Manual

17

OPTIONAL

 

 

 

STANDARD

 

 

 

 

TERMINAL

 

DISCONNECT

 

 

 

 

 

 

 

BLOCK

 

 

 

 

 

 

 

CB1A

 

 

 

 

TB1A

 

 

 

 

 

 

 

 

L1

2

 

TO

L1

11

21

BLK

 

BLK

FUSEDTO DISCONNECT NECPER

 

NECPER

DISCONNECTFUSED

 

 

 

BLK

 

 

 

22

YEL

L2

4

 

 

L2

12

YEL

 

 

 

 

 

 

 

YEL

L3

6

 

 

L3

13

23

BLU

 

 

BLU

 

 

 

 

 

 

 

BLU

NEUTRAL

 

 

 

 

 

 

11

21

 

WHT

 

 

 

380V UNITS ONLY

 

 

 

 

 

 

EQUIP GND

 

 

 

 

 

 

 

 

 

 

 

 

FU1

BLK

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

FU2

YEL

 

CONNECT FOR

 

 

 

 

 

YEL

 

 

 

 

 

 

 

 

APPROPRIATE

 

 

 

 

 

 

 

PRIMARY VOLTAGE

 

 

 

 

 

 

 

SEE TABLE 1

 

 

TRAN1

 

 

 

 

 

 

 

 

 

 

 

 

PRIMARY

 

 

 

 

H1

 

H2

H3

H4

 

 

 

SECONDARY 24V

 

 

RED XF FU3

X3

 

 

 

X2

 

 

 

X1

 

 

 

 

GRN/YEL

 

380V ONLY

 

 

 

TB3

 

BRN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

A1

SW2

BRN

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B1

C1

 

3

 

 

 

 

FIOP/ACCESSORY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

 

3

3

J1

3

3

3

J1

3

 

 

 

 

 

3

 

 

 

CB3

2

 

MBB

2

2

2

EMM

2

 

3.2 AMPS

2

 

BRN

BRN

2

 

 

1

 

 

J2

1

1

1

J2

1

 

VIO

VIO

1

 

RED

1

 

 

VIO

 

DGS FIOP

 

 

 

 

 

 

BRN

2

12

AUX2

 

 

 

 

 

 

1

 

 

TABLE 1

 

 

VIO

11

J1

 

 

 

 

 

 

 

 

 

 

 

 

TERMINAL

 

 

 

 

 

 

 

 

 

4965-a30

BRN

2

GND

UPC

 

 

VOLTAGE

SERIES

CONNECTIONS

 

 

208-3-60

500

H3 & H4

 

 

 

 

 

 

 

 

 

 

FOR PRIMARY SIDE

 

 

 

UPC FIOP

 

 

575-3-60

100

H1 & H5

 

 

 

24VAC

 

 

 

380-3-60

200

H1 & H2

 

 

 

 

 

 

230-3-60

500

H2 & H4

 

 

 

 

 

 

 

 

 

 

VIO

1

HOT

 

 

 

460-3-60

600

H1 & H4

 

 

 

 

 

 

 

 

 

 

015,020,040: 380V,460V,575V ONLY

 

 

 

 

 

 

030,045: 460V,575V ONLY

 

 

 

 

 

 

CCB-1

CSB-A1

CA1

 

1

 

 

BLK

 

 

 

 

 

11

21

BLK

11

21

 

BLK

T1

 

YEL

12

22

YEL

12

22

 

2

T2

COMP A1

 

YEL

BLU

13

23

BLU

13

23

 

3

T3

 

 

BLU

GRN/YEL

YEL

 

 

YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

CCB-2

BLU BLK

 

CA2

 

 

 

 

 

 

 

CSB-A2

 

1

 

 

BLK

11

21

21

 

T1

 

BLK

11

 

BLK

 

 

 

 

 

 

 

2

 

 

YEL

12

22

 

12

22

 

T2

COMP A2

YEL

 

YEL

 

 

 

 

 

 

3

 

 

BLU

 

 

 

 

 

 

T3

 

13

23

BLU

13

23

 

BLU

GRN/YEL

015,020,040: 208/230V ONLY

 

 

 

 

 

 

 

 

 

 

 

 

030,045: 202/230V,380V ONLY

 

 

 

 

 

 

 

 

CCB-3

CSB-A3

CA3

 

1

 

 

BLK

 

 

 

 

 

11

21

BLK

11

21

 

BLK

T1

 

YEL

12

22

YEL

12

22

 

2

T2

COMP A3

 

YEL

 

 

 

 

 

 

 

3

 

(040,045 ONLY)

BLU

13

23

BLU

13

23

 

T3

 

 

BLU

GRN/YEL

 

(040,045 ONLY)

 

(040,045 ONLY)

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

YEL

 

FUSE

 

UNIT VOLTAGE

TRAN

REPLACE

 

 

 

 

NUMBER

 

SIZE

WITH

 

 

 

 

 

 

 

 

 

 

 

 

208/230-3-60

 

 

FNQ-R-3

 

 

 

 

FU1 & FU2

 

380-3-60

 

200VA

FNQ-R-2

 

 

 

 

 

460-3-60

 

FNQ-R-1.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

575-3-60

 

250VA FNQ-R-1.5

 

 

 

 

FU3 (24V)

380-3-60,460-3-60,575-3-60

 

FNQ-R-10

 

 

 

 

208/230-3-60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FU4 & FU5

380-3-60,460-3-60,575-3-60

NONE

FNQ-R-3

 

 

 

 

208/230-3-60

 

 

 

 

 

 

 

 

 

 

 

 

FB1

 

 

 

 

CCH

 

PL11-1

CH-A1

BLK

 

 

 

 

 

 

FU4

 

BLK

 

L1

T1

BLK

 

BLK

 

 

 

 

 

 

 

 

PL11-2

 

YEL

FU5

 

YEL

WHT

L2

T2

YEL

 

BLK

(MPA ONLY)

 

 

(MPA ONLY)

 

 

 

 

 

 

 

PL12-1

CH-A2

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

BLK

NOT USED ON

YEL

PL12-2

BLK

380V UNITS

 

 

 

PL13-1

CH-A3

 

BLK

 

WHT

 

BLK

 

 

 

380V

 

PL13-2

 

UNITS ONLY

YEL

 

BLK

(040,045 ONLY)

NOTES:

1.FACTORY WIRING IS IN ACCORDANCE WITHUL 1995STANDARDS. ANY FIELD MODIFICATIONS ORADDITIONSMUST BE IN COMPLIANCE WITH ALL APPLICABLE CODES.

C MIN WIRE FOR FIELD POWER SUPPLY.

3. ALL FIELD INTERLOCK CONTACTSMUST HAVE AMINRATING OF 2 AMPS @ 24VAC SEALED. SEE FIELD INTERLOCK WIRING.

4.COMPRESSOR AND FAN MOTORS ARE THERMALLYPROTECTED-- THREE PHASE MOTORS PROTECTEDAGAINST PRIMARYSINGLE PHASE CONDITIONS.

5. TERMINALS 14 & 15 OF LVT ARE FOR FIELD CONNECTION OF REMOTE ON-OFF. THE CONTACT MUST BERATEDFOR DRY CIRCUIT APPLICATION CAPABLE OF HANDLINGA5VDC

1 MA TO 20 MA LOAD.

6.FOR 500 SERIES UNIT OPERATIONAT 208-3-60VLINE VOLTAGE,

TRAN1 PRIMARY CONNECTIONS MUST BE MOVEDTOTERMINALS H3 & H4.

7.MAX LOAD: 5VA SEALED, 10VAINRUSH

8.MP-A1 NOT USED IN THE FOLLOWINGUNITS: 015,020: ALL UNITS

030-045: 460V UNITS WITHOUT DIGITAL SCROLL

9.MP-A2 NOT USED IN THE FOLLOWINGUNITS: 015,020: ALL UNITS

030-045: 460V UNITS

10.MP-A3 NOT USED IN THE FOLLOWINGUNITS: 040,045: 460V UNITS

11.JUMPER PLUG REQUIRED WHEN MPNOT USED

12.IF CHILLED WATER PUMP INTERLOCK ISUSED, REMOVE JUMPER FROM TERMINAL 16 TO17AND

WIRE INTERLOCK CONTACT ACROSS TERMINALS16&17.

Fig. 4 — Typical Power Wiring Schematic — 30MP015-045 Units

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TRAN1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CB2

 

A2

SW2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.2 AMPS

 

 

RED

 

 

 

 

RED

 

XF

 

FU3

X1

SECONDARY 24V

X2

 

BRN

 

 

 

 

 

1

TB3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C2

 

 

 

 

 

 

GRN/YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MBB

 

 

 

 

 

B2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORN

CB1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J10A

 

 

1

 

 

 

 

3.2 AMPS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

PNK

 

 

LVT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

PNK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RLY 11

 

 

 

 

 

GRA

 

 

 

 

 

 

 

 

 

 

 

 

ALMR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

1

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALARM RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SEE NOTE 7

 

 

 

TB3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6 ORN

 

 

 

PNK

 

 

 

 

 

 

 

 

 

 

 

 

CR

 

 

 

 

1

 

 

BRN

 

X2

TRAN1

 

 

 

 

 

 

 

 

RLY 9

 

 

6

 

 

 

 

 

 

 

 

 

 

2

24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CWP RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

BRN

 

 

CWFS-3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SEE NOTE 7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

J12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RLY 10

 

 

 

 

 

BLU

 

 

 

 

 

 

6

20

 

 

 

 

CR

 

 

 

 

3

 

 

BRN

 

 

LLSV-A

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J10B

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONDENSER FAN/PUMP RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SEE NOTE 7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RLY 5

 

 

 

 

 

 

ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

 

 

 

7

19

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONDENSER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WATER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

ORN

 

 

 

 

 

 

 

 

 

J11

 

 

 

 

 

VALVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RLY 6

 

 

 

 

 

PNK

 

 

 

 

 

 

 

 

 

 

 

 

(MPB ONLY)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

 

 

 

 

 

1

18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RLY 7

 

 

16

 

 

 

 

RED

 

 

 

 

 

 

 

 

 

 

 

RED

GRA

 

 

 

BRN

 

 

 

BRN

 

 

3

TB3

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LLSV-A

 

 

 

 

 

BRN

 

 

MLV-A

 

 

 

 

 

 

 

 

 

 

 

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(MPA AND BRINE ONLY)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RLY 8

 

 

19

 

 

 

 

BLU

 

 

 

 

 

 

 

 

 

 

 

 

BLU

C1

CCH

C2

 

 

 

 

BRN

 

C2

CA3

 

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

HPS-A

 

 

 

 

 

 

 

 

 

 

 

 

 

(MPA ONLY)

 

 

 

 

BRN

 

 

MLV-A

 

 

 

 

 

 

 

 

 

 

 

20

 

BLK

 

BLK

 

BLK

PNK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

PL1-1

 

 

MP-A1

 

 

PL1-2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RLY 1

 

 

21

 

 

 

 

ORN

 

 

 

 

 

 

VIO

M1

 

M2

VIO

ORN

C1

CA1

C2

 

 

 

 

BRN

 

 

 

PL1-4

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

 

 

 

SEE NOTE 11

 

 

VIO

 

 

 

 

 

 

 

 

 

 

 

BRN

 

 

PL2-4

 

 

 

 

 

 

 

 

 

 

 

22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14 BLK

 

 

 

 

 

 

 

 

 

PL2-1

 

 

MP-A2

 

 

PL2-2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RLY 2

 

 

23

 

 

 

 

GRA

 

 

 

 

 

 

VIO

M1

 

M2

VIO

GRA

C1

CA2

C2

 

 

 

 

BRN

 

 

 

PL2-4

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

SEE NOTE 11

 

 

VIO

 

 

 

 

 

 

 

 

 

 

 

BRN

 

 

PL3-4

 

 

 

 

 

 

 

 

 

 

 

24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

 

 

 

PL3-1

 

 

MP-A3

 

 

PL3-2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RLY 3

 

 

25

 

 

 

 

VIO

 

 

 

 

 

 

VIO

M1

 

M2

VIO

VIO

C1

CA3

C2

 

 

 

 

BRN

 

C2

CCH

 

 

 

 

 

 

 

 

 

 

 

17

 

 

 

 

 

 

 

 

SEE NOTE 11

 

 

VIO

 

 

 

 

(040,045 ONLY)

 

 

 

 

BRN

 

 

PL3-4

 

 

 

 

 

 

 

 

 

 

 

26

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

 

 

 

 

GRA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RLY 4

 

 

27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRA

GRA

 

 

 

BRN

 

 

 

BRN

 

 

 

LLSV-A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MLV-A

 

 

 

 

 

BRN

 

C2

CCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MLV FIOP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PNK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PNK

BRN

 

CWFS

 

BLU

BRN

 

 

BRN

 

 

2

TB3

 

 

 

 

 

 

 

 

 

LVT

 

 

 

6

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J11

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SEE NOTE 8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

PL1-3

PL1-4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

 

2

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

PNK

RED

T2

MP-A1

T1

BRN

 

 

 

BRN

 

C2

CA1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

RED

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SEE NOTE 9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

PL2-3

PL2-4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CWPI

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PNK

RED

T2

MP-A2

T1

BRN

 

 

 

BRN

 

C2

CA1

 

 

 

 

 

 

 

 

(SEE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BRN

 

C2

CA2

 

 

 

 

 

 

 

 

12)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SEE NOTE 10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PL3-3

PL3-4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

CWFS

2

10

 

 

 

 

 

 

 

 

1

 

 

 

 

PNK

RED

T2

MP-A3

T1

BRN

 

 

 

BRN

 

C2

CA2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

MARQUEE

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

5

BLK

 

WHT

10

 

 

1

RED

 

RED

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

2

DISPLAY

 

 

 

 

 

 

 

 

 

 

BRN

 

C2

CA3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

WHT

 

WHT

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

J4

3

BLK

 

BLK

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

6

VIO

 

9

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

4

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

5

BRN

 

RED

5

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

6

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

7

RED

 

 

8

 

 

6

RED

 

BRN

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

REMOTE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON-OFF

 

 

 

A1

SW1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SWITCH

 

 

 

ENABLE

7

 

 

 

1

1

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(SEE

 

8

 

 

RED

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE 5)

 

 

 

B1

C1

 

 

 

J3

2

WHT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORN

 

 

 

 

3

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

9

 

 

 

6

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

10

 

 

 

5

5

MAIN

 

1

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DUAL

 

 

 

 

 

 

 

BASE

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SETPOINT

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AUX2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BOARD

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

 

BLU

4

4

RED

2

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

CSB

 

 

 

 

 

 

 

 

 

 

 

3

-

 

 

 

 

 

 

 

 

 

 

 

 

 

CNPI

 

 

 

 

 

 

 

 

 

5

ORN

3

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A2

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

J9

6

 

 

 

 

 

 

 

 

 

 

 

4

G

 

 

 

 

 

 

 

7

 

 

 

DUS

 

 

 

12

 

 

BLU

3

 

6

 

BRN

1

 

 

 

 

 

 

 

 

 

 

 

 

1

 

J9

 

 

-

7

VIO

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

8

RED

2

CSB

 

 

 

 

 

 

 

 

 

 

BLK

3

3

-

 

J2 CH1

8

8

BRN

 

 

 

 

CNFS

 

 

 

 

 

 

 

 

 

8

 

ORN

3

A3 (040,045 ONLY)

 

 

 

 

 

 

 

WHT

2

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

9

 

 

 

 

 

 

 

1

G

 

 

DGS

 

 

 

 

 

 

 

 

11

 

13

 

 

VIO

 

2

 

 

9

10

BRN

1

 

 

 

 

 

 

 

 

 

 

 

RED

1

+

 

 

 

 

1

 

 

 

DTT

 

 

 

 

 

 

 

 

 

 

 

10

RED

2

 

 

 

 

 

 

 

 

 

 

 

 

 

FIOP

CH11

1

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

11

CSB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J6 -

 

2

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

11

ORN

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

BLK

 

 

 

 

 

 

14

 

 

 

1

 

 

12

A1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

BRN

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

CONDENSER EWT

 

 

 

 

 

 

 

 

 

1

2

3

4

5

6

7

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

DARK = SWITCH LOCATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ACCESSORY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

3

 

 

CONDENSER LWT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ACCESSORY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LVT

 

 

 

 

 

 

 

4

4

 

 

 

 

 

LVT

 

 

SEN

T-55

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J12

T55

 

 

ACCSY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LVT

 

 

 

LEN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

BLU

 

 

 

 

3

23

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J10

 

 

 

 

J13

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

BRN

10

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

EMM

 

1

GRA

17

1

 

 

 

 

 

 

 

 

 

 

6

VIO

 

 

 

 

4

22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CCN

 

1

BLK

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

2

 

 

 

 

RED

9

 

 

1

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

2

GRA

16

2

 

 

 

 

8

 

 

7

RED

 

 

 

 

5

21

 

 

 

 

 

 

BLK

 

J3

 

3

ICE DONE

 

 

2

WHT

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

2

3

 

 

 

 

3

RED

15

3

 

(+)

3

RED

 

 

7

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

WHT

2

 

 

 

 

4

 

 

RED

 

BLK

7

 

 

8

 

 

 

 

 

 

 

 

OAT ACCESSORY OR

 

 

1

 

 

 

 

4

RED

14

4

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

DLS STEP 1

WHT

(COM)

4

BRN

 

WHT

6

J5

 

 

3

 

 

RGTA

 

 

 

 

DUAL CHILLER LWT

 

 

RED

 

1

 

 

 

 

 

 

 

5

BLU

13

5

5

RED

 

5

 

9

 

 

 

ACCESSORY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

RED

5

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

7

BLU

12

6

 

 

BLK

(-)

6

BLK

 

 

4

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

11

 

DLS STEP 2

SHIELD

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J7

 

 

 

 

7

WHT

 

 

3

 

 

 

1

 

 

 

COOLER ENTERING

 

 

 

 

 

 

 

4

 

 

 

 

 

 

8

 

 

 

 

 

 

BLK

3

 

 

11

RED

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

8

 

 

 

 

 

 

8

RED

 

2

 

 

2

 

 

FLUID TEMP

 

 

 

 

 

 

 

 

3

 

 

 

 

 

9

 

 

 

 

 

J1

 

WHT

 

2

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

3

 

J4

 

 

 

9

 

 

 

 

 

 

 

 

 

1

J8

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

10

 

 

 

 

 

 

 

 

RED

1

3

 

 

 

 

 

 

 

 

 

 

 

 

WHT

2

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

13

RED

 

 

COOLER LEAVING

 

 

 

 

 

 

1

 

 

 

 

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLUID TEMP

 

 

 

 

 

 

 

RED

1

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIOP/

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UPC

 

 

 

 

 

 

 

17

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ACCESSORY

 

 

1

 

9

7

+

DEMAND

PORT 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

8

8

-

LIMIT

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

4-20mA

RED

1

NET +

LON

 

 

 

 

 

 

18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

VIO

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

BLK

2

NET -

OPTION

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

BRN

6

 

 

 

J3 GND

 

 

 

 

 

19

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

N/C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

TEMP

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

5

9

+

 

NET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

N/C

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

RESET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

ORN

4

 

-

WHT

5

SIGNAL

J4

 

 

 

 

 

 

 

7

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

4-20mA

1

 

 

 

 

 

 

21

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J6

6

 

3

 

 

 

PORT 1A

 

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

2

 

 

 

 

 

 

22

8

GRN

C

DPTA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

2

10

+

COOLING

 

1

NET +

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

8

PNK

1

 

-

SETPOINT

 

2

NET 2

 

 

 

 

 

 

 

23

9

BLK

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

4-20mA

 

3

SHIELD

UPC OPT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

10

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25

 

GRN

 

 

SPTA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26

BLK

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 5 — Typical Control Wiring Schematic — 30MP015-045 Units

 

 

 

 

 

a30-4966

 

 

 

 

 

 

 

 

 

 

 

18

IMPORTANT: A shorted CCN bus cable will prevent some routines from running and may prevent the unit from starting. If abnormal conditions occur, unplug the connector. 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.

Table 15 — Thermistor Designations

 

PIN

 

THERMISTOR

CONNECTION

THERMISTOR INPUT

 

POINT

 

CLWT

J8-13,14 (MBB)

Cooler Leaving Fluid

CEWT

J8-11,12 (MBB)

Cooler Entering Fluid

RGTA

J8-9,10 (MBB)

Circuit A Return Gas

 

Temperature (accessory)

 

 

OAT

J8-6,7 (MBB),

Outdoor-Air Temperature

LVT 4,13

Sensor (accessory) or Dual

 

 

LWT Sensor

SPT

J8-5,6 (MBB)

Accessory Remote Space

LVT-3,4

Temperature Sensor

 

CNDE

J8-1,2

Condenser Entering Water

 

Temperature Sensor

 

 

CNDL

J8-3,4

Condenser Leaving Water

 

Temperature Sensor

 

 

LEGEND

LWT — Leaving Water Temperature

MBB — Main Base Board

Table 16 — Status Inputs

STATUS SWITCH

PIN CONNECTION POINT

Condenser Flow Switch

LVT-11,17, J7-2, J6-2

Dual Set Point

LVT-12,13, J7-3,4

Remote On/Off

LVT-14,15

Cooler Flow Switch Interlock

LVT-16,17, J6-2, J7-10

Compressor Fault Signal, A1

J9-11,12

Compressor Fault Signal, A2

J9-5,6

Compressor Fault Signal, A3

J9-8,9

 

Table 17 — Output Relays

 

 

RELAY

DESCRIPTION

NO.

 

K1

Energize Compressor A1

K2

Energize Compressor A2

K3

Energize Compressor A3

K4

Energize Minimum Load Valve

K5

Water Valve Open

K6

Water Valve Close

K7

Liquid Line Solenoid Valve

K8

Crankcase Heater Relay (30MPA Only)

K9

Chilled Water Pump

K10

Condenser Fan/Pump

K11

Alarm Relay

Table 18 — CCN Communication Bus Wiring

MANUFACTURER

PART NO.

Regular Wiring

Plenum Wiring

 

Alpha

1895

American

A21451

A48301

Belden

8205

884421

Columbia

D6451

Manhattan

M13402

M64430

Quabik

6130

Sensors — The electronic control uses 2 to 7 thermistors to sense temperatures for controlling chiller operation. See Table 15. These sensors are outlined below. Thermistors

RGTA, CNDE, CNDL, EWT, LWT, and OAT are identical in temperature versus resistance and voltage drop performance. The dual chiller thermistor (DLWT) is 5 k at 77 F (25 C) thermistor. Space temperature thermistor (SPT) is a 10 k at 77 F (25 C). See Thermistors section for temperature-resis- tance-voltage drop characteristics.

COOLER LEAVING FLUID SENSOR (LWT) — The thermistor is installed in a well in the factory-installed leaving fluid piping coming from the bottom of the brazed-plate heat exchanger.

COOLER ENTERING FLUID SENSOR (EWT) —The thermistor is installed in a well in the factory-installed entering fluid piping coming from the top of the brazed-plate heat exchanger.

CONDENSER LEAVING FLUID SENSOR (CNDL) — The thermistor is installed in a well in the factory-installed leaving fluid piping coming from the bottom of the brazed-plate heat exchanger.

COOLER ENTERING FLUID SENSOR (CNDE) —The thermistor is installed in a well in the factory-installed entering fluid piping coming from the top of the brazed-plate heat exchanger.

COMPRESSOR RETURN GAS TEMPERATURE SENSOR (RGTA) — This accessory thermistor can be installed in a well located in the suction line.

OUTDOOR-AIR TEMPERATURE SENSOR (OAT) — This sensor is an accessory that is remotely mounted and used for outdoor air temperature reset. See Table 15.

DUAL LEAVING WATER TEMPERATURE SENSOR (DLWT) — This input can be connected to the LVT. See Table 15. For dual chiller applications (parallel only are supported), connect the dual chiller leaving fluid temperature sensor (5 k thermistor, Carrier part no. HH79NZ029) to the outside air temperature input of the Master chiller. If outside air temperature is required for reset applications, connect the sensor to the Slave chiller and configure the slave chiller to broadcast the value to the Master chiller.

REMOTE SPACE TEMPERATURE SENSOR (SPT) — The sensor (part no. 33ZCT55SPT) is an accessory sensor that is remotely mounted in the controlled space and used for space temperature reset. The sensor should be installed as a wallmounted thermostat would be (in the conditioned space where it will not 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. The space temperature sensor includes a terminal block (SEN) and a RJ11 female connector. The RJ11 connector is used access into the Carrier Comfort Network® (CCN) at the sensor.

To connect the space temperature sensor (Fig. 8):

1.Using a 20 AWG twisted pair conductor cable rated for the application, connect 1 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 3 and 4 on LVT 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 (Fig. 9):

IMPORTANT: The cable selected for the RJ11 connector wiring MUST be identical to the CCN communication bus wire used for the entire network. Refer to Table 18 for acceptable wiring.

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.)

19

RED LED - STATUS

GREEN LED -

YELLOW LED -

 

LEN (LOCAL EQUIPMENT NETWORK)

CCN (CARRIER COMFORT NETWORK)

INSTANCE JUMPER

 

 

CEPL130346-01

 

 

 

 

 

 

K11

K10

K9

J1

J2

K8

K7

K6

K5

STATUS

 

 

 

J4

J3

LEN

 

 

J10

 

 

 

 

 

 

 

 

 

 

 

K4

K3

K2

K1

 

 

CCN

 

 

 

 

J5

 

 

 

 

J6

 

 

 

 

 

 

J7

J8

 

 

J9

Fig. 6 — Main Base Board

a30-4967

Fig. 7 — Enable/Off/Remote Contact Switch, and Emergency On/Off Switch Locations

 

a30-4968

 

 

T-55 SPACE

 

 

 

SENSOR

SPT (T10) PART NO. 33ZCT55SPT

 

 

 

 

 

 

 

6

 

SENSOR

 

CCN+

5

 

 

 

SEN

LVT

TO CCN

CCN GND

4

SEN

COMM 1

 

 

 

3

 

 

 

BUS (PLUG)

 

3

 

 

AT UNIT

 

 

 

4

 

CCN-

2

 

 

 

 

1

Fig. 8 — Typical Space Temperature Sensor Wiring

Fig. 9 — CCN Communications Bus Wiring to Optional Space Sensor RJ11 Connector

20

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.

Energy Management Module (Fig. 10) — This factory-installed option (FIOP) or field-installed accessory is used for the following types of temperature reset, demand limit, and/or ice features:

4 to 20 mA leaving fluid temperature reset (requires field-supplied 4 to 20 mA generator)

4 to 20 mA cooling set point reset (requires fieldsupplied 4 to 20 mA generator)

Discrete inputs for 2-step demand limit (requires fieldsupplied dry contacts capable of handling a 24 vac, 50 mA load)

4 to 20 mA demand limit (requires field-supplied 4 to 20 mA generator)

Discrete input for Ice Done switch (requires fieldsupplied dry contacts capable of handling a 24 vac, 50 mA load)

See Demand Limit and Temperature Reset sections on pages 27 and 31 for further details.

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. The two different power supplies cannot be mixed. ComfortLink™ controls use half wave rectification. A signal isolation device should be utilized if a full wave bridge signal generating device is used.

Loss-of-Cooler Flow Protection — A proof-of- cooler flow device is factory installed in all chillers.

Condenser Flow Protection — A proof-of-condens- er flow protection accessory can be field installed in the condenser water piping of all chillers. The unit must be configured for the input to be enabled.

Thermostatic Expansion Valves (TXV) — All units are equipped from the factory with conventional TXVs. The 30MPA units and 30MPW units with medium temperature brine also have factory-installed liquid line solenoids. The liquid line solenoid valves are not intended to be a mechanical shut-off. For 30MPW units, when service is required, reclaim the refrigerant from the system.

For 30MPA units when service is required, the compressor and evaporator can be serviced by closing the factory-installed liquid line service valve and field-installed discharge line service valve. After the valves are closed, reclaim the refrigerant from the system.

The TXV is set at the factory to maintain approximately 8 to 12° F (4.4 to 6.7° C) suction superheat leaving the cooler by monitoring the proper amount of refrigerant into the cooler. All TXVs are adjustable, but should not be adjusted unless absolutely necessary.

Capacity Control — The control system cycles compressors, digital scroll modulting solenoid (if equipped), and minimum load valve solenoids (if equipped) to maintain the user-configured leaving chilled fluid temperature set point. Entering fluid temperature is used by the main base board (MBB) to determine the temperature drop across the cooler and is used in determining the optimum time to add or subtract capacity

stages. The chilled fluid temperature set point can be automatically reset by the return fluid temperature, space, or outdoor-air temperature reset features. It can also be reset from an external 4 to 20-mA signal (requires energy management module FIOP or accessory).

The capacity control algorithm runs every 30 seconds. The algorithm attempts to maintain the Control Point at the desired set point. Each time it runs, the control reads the entering and leaving fluid temperatures. The control determines the rate at which conditions are changing and calculates 2 variables based on these conditions. Next, a capacity ratio is calculated using the 2 variables to determine whether or not to make any changes to the current stages of capacity. This ratio value ranges from –100 to +100%. If the next stage of capacity is a compressor, the control starts (stops) a compressor when the ratio reaches +100% (–100%). If installed, the minimum load valve solenoid will be energized with the first stage of capacity. Minimum load valve value is a fixed 30% in the total capacity calculation. The control will also use the minimum load valve solenoid as the last stage of capacity before turning off the last compressor. A delay of 90 seconds occurs after each capacity step change. Refer to Table 19.

MINUTES LEFT FOR START — This value is displayed only in the network display tables (using Service Tool, ComfortVIEW™ or ComfortWORKS® software) and represents the amount of time to elapse before the unit will start its initialization routine. This value can be zero without the machine running in many situations. This can include being unoccupied, ENABLE/OFF/REMOTE CONTACT switch in the OFF position, CCN not allowing unit to start, Demand Limit in effect, no call for cooling due to no load, and alarm or alert conditions present. If the machine should be running and none of the above are true, a minimum off time (DELY, see below) may be in effect. The machine should start normally once the time limit has expired.

MINUTES OFF TIME (Configuration OPT2 DELY) — This user-configurable time period is used by the control to determine how long unit operation is delayed after power is applied/restored to the unit. Typically, this time period is configured when multiple machines are located on a single site. For example, this gives the user the ability to prevent all the units from restarting at once after a power failure. A value of zero for this variable does not mean that the unit should be running.

LEAD/LAG DETERMINATION — This is a configurable choice and is factory set to be automatic for all units unless the unit is equipped with minimum load, then circuit A is lead (Configuration OPT2 LLCS). The value can be changed to Circuit A or Circuit B leading as desired. Set at automatic, the control will sum the current number of logged circuit starts and one-quarter of the current operating hours for each circuit. The circuit with the lowest sum is started first. Changes to which circuit is the lead circuit and which is the lag are also made when total machine capacity is at 100% or when there is a change in the direction of capacity (increase or decrease) and each circuit’s capacity is equal.

CAPACITY CONTROL OVERRIDES — The following overrides will modify the normal operation of the routine.

Deadband Multiplier — The user configurable Deadband Multiplier (Configuration SLCT Z.GN) has a default value of 1.0. The range is from 1.0 to 4.0. When set to other than 1.0, this factor is applied to the capacity Load/Unload Factor. The larger this value is set, the longer the control will delay between adding or removing stages of capacity. Figure 11 shows how compressor starts can be reduced over time if the leaving water temperature is allowed to drift a larger amount above and below the set point. This value should be set in the range of 3.0 to 4.0 for systems with small loop volumes. Figure 12 shows the operating envelope for the compressor.

21

First Stage Override — If the current capacity stage is zero, the control will modify the routine with a 1.2 factor on adding the first stage to reduce cycling. This factor is also applied when the control is attempting to remove the last stage of capacity.

Slow Change Override — The control prevents the capacity stages from being changed when the leaving fluid temperature is close to the set point (within an adjustable deadband) and moving towards the set point.

 

CEBD430351-0396-01C

 

 

 

PWR

J1

J2

 

 

01

 

 

 

 

 

 

 

 

 

-

J4

 

J3

LEN

 

CEPL130351

 

 

STATUS

 

TEST 1

 

 

 

 

J5

 

 

 

 

 

 

 

 

 

J7

 

 

 

J6

 

TEST 2

 

 

RED LED - STATUS

GREEN LED -

ADDRESS

 

 

 

LEN (LOCAL EQUIPMENT NETWORK)

DIP SWITCH

 

Fig. 10 — Energy Management Module

Table 19 — Part Load Data Percent Displacement, Standard Units with Minimum Load Valve

30MP UNIT SIZE

 

CONTROL

CAPACITY STEPS

 

STEPS

(% Displacement)

 

 

015

 

1

18*

 

2

50

 

 

3

100

020

 

1

25*

 

2

50

 

 

3

100

030

 

1

34*

 

2

50

 

 

3

100

 

 

1

21*

040

 

2

33

 

3

67

 

 

 

 

4

100

 

 

1

22*

045

 

2

33

 

3

67

 

 

 

 

4

100

*Hot gas bypass (minimum load) valve energized.

NOTE: These capacity steps may vary due to different capacity

 

 

staging sequences.

 

22

 

 

 

 

 

DEADBAND EXAMPLE

 

2 STARTS

 

 

 

 

 

 

 

 

 

 

47

 

 

 

 

 

 

8

 

46

 

 

 

 

 

 

 

 

 

 

 

 

 

(C)

7

 

45

 

 

 

 

 

(F)

 

 

 

 

 

 

 

44

 

 

 

 

 

LWT

 

LWT

 

 

 

 

 

6

43

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42

 

 

 

 

 

 

5

 

41

 

 

 

 

 

 

 

 

0

200

400

600

800

1000

 

 

 

 

 

TIME (SECONDS)

 

3 STARTS

 

 

 

 

STANDARD

 

 

 

 

LEGEND

 

 

 

DEADBAND

 

 

MODIFIED

LWT — Leaving Water Temperature

 

 

 

 

 

 

DEADBAND

Fig. 11 — Deadband Multiplier

SCT (F)

170

160

150

140

130

120

110

100

90

80

70

60

50

40

30

-30

-20

-10

0

10

20

30

40

50

60

70

80

LEGEND

SST (F)

SCT — Saturated Condensing Temperature

a30-4969

SST — Saturated Suction Temperature

 

Fig. 12 — Operating Envelope for R-410A Compressor

Ramp Loading — Ramp loading (Configuration SLCT CRMP) limits the rate of change of leaving fluid temperature. If the unit is in a Cooling mode and configured for Ramp Loading, the control makes 2 comparisons before deciding to change stages of capacity. The control calculates a temperature difference between the control point and leaving fluid temperature. If the difference is greater than 4° F (2.2° C) and the rate of change (°F or °C per minute) is more than the configured Cooling Ramp Loading value (CRMP), the control does not allow any changes to the current stage of capacity.

Low Entering Fluid Temperature Unloading — When the entering fluid temperature is below the control point, the control will attempt to remove 25% of the current stages being used. If exactly 25% cannot be removed, the control removes an amount greater than 25% but no more than necessary. The lowest stage will not be removed.

Hot Gas Bypass — If equipped, the hot gas bypass valve is energized only when one compressor is running on circuit A. If the close control feature is enabled the hot gas bypass valve

may be used as needed to obtain leaving fluid temperature close to set point.

Cooler Freeze Protection — The control will try to prevent shutting the chiller down on a Cooler Freeze Protection alarm by removing stages of capacity. If the cooler fluid selected is Water, the freeze point is 34 F (1.1 C). If the cooler fluid selected is Brine, the freeze point is the Brine Freeze Point (Set Points FRZ BR.FZ). This alarm condition (A207) only references leaving fluid temperature and NOT Brine Freeze point. If the cooler leaving fluid temperature is less than the freeze point plus 2.0° F (1.1° C), the control will immediately remove one stage of capacity. This can be repeated once every 30 seconds.

Low Saturated Suction Protection — The control will try to prevent shutting a circuit down due to low saturated suction conditions by removing stages of capacity. The circuit alert condition (T116) compares saturated suction temperature to the configured Brine Freeze Point (Set Points FRZ BR.FZ). The Brine Freeze point is a user-configurable value that must be left at 34 F (1.1 C) for 100% water systems. A lower value

23

may be entered for systems with brine solutions, but this value should be set according to the freeze protection level of the brine mixture. Failure to properly set this brine freeze point value may permanently damage the brazed plate heat exchanger. The control will initiate Mode 7 (Circuit A) to indicate a circuit’s capacity is limited and that eventually the circuit may shut down.

Operation of Machine Based on Control

Method and Cooling Set Point Selection Set-

tings — Machine On/Off control is determined by the configuration of the Control Method (ConfigurationOPT2 CTRL) and Cooling Set Point Select (Configuration SLCT CLSP) variables. All units are factory configured with Cooling Set Point Select set to 0 (single set point). With the control method set to 0, simply switching the Enable/Off/Remote Contact switch to the Enable or Remote Contact position (external contacts closed) will put the chiller in an occupied state. The control mode (Run Status VIEW STAT) will be 1 (OFF LOCAL) when the switch is Off and will be 5 (ON LOCAL) when in the Enable position or Remote Contact position with external contacts closed.

Two other control methods are available for Machine On/ Off control:

OCCUPANCY SCHEDULE (Configuration OPT2CTRL = 1) — The main base board will use the operating schedules as defined under the Time Clock mode in the scrolling marquee display. These schedules are identical. The schedule number must be set to 1 for local schedule.

The schedule number can be set anywhere from 65 to 99 for operation under a CCN global schedule. The Enable/Off/ Remote Contact must be in the Enable or Remote Contact position. The control mode (Run Status VIEW STAT) will be 1 when the switch is Off. The control mode will be 3 when the Enable/Off/Remote Contact switch input is On and the time of day is during an unoccupied period. Similarly, the control mode will be 7 when the time of day is during an occupied period.

CCN SCHEDULE (Configuration OPT2 CTRL = 2) — An external CCN device such as Chillervisor System Manager controls the On/Off state of the machine. This CCN device forces the variable ‘CHIL_S_S’ between Start/Stop to control the chiller. The control mode (Run StatusVIEW STAT) will be 1 when the switch is Off. The control mode will be 2 when the Enable/Off/Remote Contact switch input is On and the CHIL_S_S variable is ‘Stop.’ Similarly, the control mode will be 6 when the CHIL_S_S variable is ‘Start.’

Table 20 illustrates how the control method and cooling set point select variables direct the operation of the chiller and the set point to which it controls. The illustration also shows the ON/OFF state of the machine for the given combinations.

Cooling Set Point Select

SINGLE — Unit operation is based on Cooling Set Point 1 (Set Points COOL CSP.1).

DUAL SWITCH — Unit operation is based on Cooling Set Point 1 (Set Points COOL CSP.1) when the Dual Set Point switch contacts are open and Cooling Set Point 2 (Set Points COOL CSP.2) when they are closed.

DUAL CCN OCCUPIED — Unit operation is based on Cooling Set Point 1 (Set Points COOL CSP.1) during the Occupied mode and Cooling Set Point 2 (Set Points COOL CSP.2) during the Unoccupied mode as configured under the local occupancy schedule accessible only from CCN. Schedule Number in Table SCHEDOVR (See Appendix B) must be configured to 1. If the Schedule Number is set to 0, the unit will operate in a continuous 24-hr Occupied mode. Control method must be configured to 0 (switch). See Table 20.

4 TO 20 mA INPUT — Unit operation is based on an external 4 to 20 mA signal input to the Energy Management Module (EMM).

Cooler Pump Control — The AquaSnap® 30MP machines are configured with the Cooler Pump Control (Configuration OPT1 CPC) = ON.

The maximum load allowed for the Chilled Water Pump Starter is 5 VA sealed, 10 VA inrush at 24 volts. The starter coil is powered from the chiller control system. The starter should be wired between LVT 24 and TB3-1. If equipped, the field-in- stalled chilled water pump starter auxiliary contacts should be connected in series with the chilled water flow switch between LVT 16 and LVT 17.

Ice Mode — When Ice Mode is enabled Cooling Setpoint Select must be set to Dual Switch, Dual 7 day or Dual CCN Occupied and the Energy Management Module (EMM) must be installed. Unit operation is based on Cooling Setpoint 1 (CSP.1) during the Occupied mode, Ice Setpoint (CSP.3) during the Unoccupied mode with the Ice Done contacts open and Cooling Setpoint 2 (CSP.2) during the Unoccupied mode with the Ice Done contacts closed. These 3 set points can be utilized to develop your specific control strategy.

Service Test (See Table 4) — Both main power and control circuit power must be on.

The Service Test function should be used to verify proper operation of condenser output, compressors, minimum load valve solenoid (if installed), cooler pump, and remote alarm relay. To use the Service Test mode, the Enable/Off/Remote Contact switch must be in the OFF position. Use the display keys and Table 4 to enter the mode and display TEST. Press ENTER twice so that OFF flashes. Enter the password if required. Use either arrow key to change the TEST value to the ON position and press ENTER . Press ESCAPE and the button to enter the OUTS or COMP sub-mode.

Table 20 — Control Methods and Cooling Set Points

 

CONTROL

OCCUPANCY

 

COOLING SET POINT SELECT (CLSP)

 

 

TYPE

STATE

0

1

2

3

 

(CTRL)

(single)

(dual, switch)

(dual, occ)

(4 to 20 mA)

 

 

0

(switch)

Occupied

ON,CSP1

ON*

ON,CSP1

ON†

Unoccupied

ON,CSP1

ON*

ON,CSP2

ON

 

 

2

(Occupancy)

Occupied

ON,CSP1

ON*

Illegal

ON†

Unoccupied

OFF

OFF

Illegal

OFF

 

 

3

(CCN)

Occupied

ON,CSP1

ON*

ON,CSP1

ON†

Unoccupied

ON,CSP1

ON*

ON,CSP2

ON†

 

 

*Dual set point switch input used. CSP1 used when switch input is open. CSP2 used when switch input is closed. †Cooling set point determined from 4 to 20 mA input to energy management module (EMM) to terminals TB6-3,5.

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