American Standard CH532 User Manual

TRACER CH532 Chiller controller User guide

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Reception

When the unit arrives on site, check it has not been damaged in any way during transport. If damage is observed, or even merely suspected, notify the carrier within 24 hours by registered letter. Notify the local Trane Sales office at the same time. The unit should be totally inspected within 3 days of delivery. If damage is observed, notify the last carrier by registered letter and notify the local sales office.

General information

About this manual

Cautions appear at appropriate places in this instruction manual. Your personal safety and the proper operation of this machine require that you follow them carefully. The constructor assumes no liability for installations or servicing performed by unqualified personnel.

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Foreword

These Installation Operation and Maintenance instructions are given as a guide to good practice in the installation, start-up, operation and periodic maintenance by the user of TRACER CH532 chiller controller. They do not contain the full service procedures necessary for the continued successful operation of this equipment. The services of a qualified service technician should be employed, through the medium of a maintenance contract with a reputable service company.

Warranty

Warranty is based on the general terms and conditions of the constructor. The warranty is void if the equipment is modified or repaired without the written approval of the constructor, if the operating limits are exceeded, or if the control system or the electrical wiring is modified. Damage due to misuse, lack of maintenance, or failure to comply with the manufacturer’s instructions, is not covered by the warranty obligation. If the user does not conform to the rules of “Maintenance”, it may entail cancellation of warranty and liabilities by the constructor.

©American Standard Inc. 2004

General information

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Contents

Foreword 2

Warranty 2

Reception 2

General information 2

TRACER CH532 Presentation 4

Hardware architecture 5

Starting/stopping the unit 9

Menus 10

Display menu: “Data display” 11

Customer settings menu: “Settings” 12

Clock Setting menu: “Clock” 15

Unit configuration menu: “Configuration” 17

Alarms 22

Lon Talk®option 25

Safety recommendations 32

Maintenance contract 32

Training 32

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TRACER CH532 Presentation

Important note:This document

describes all the functions available on TRACER CH532 with software version 2.0 and explains how to program it. Certain parameters must only be modified by qualified personnel. Before changing any parameter, always check that the change does not affect the good and safe operation of the equipment. Operation must always stay in the catalogued limits.

Built-in control terminal features: An LCD display (1), 4 lines x 20 characters with back lighting 6 buttons (2) to (7)

Figure 1 - TRACER CH532 user interface

Alarm button:

Used for displaying or manually resetting the alarms. The red LED lights up , when at least one alarm has been detected.

Program button:

Allows the various operating parameters to be set (safety parameters, thresholds).

Escape button:

Allows the return to default display

5.6.

Downward and Upward

arrows

Allows management of currently displayed screen and setting of values of control parameters

Esc

Prg

Validation button

Allows to move from line to line in the currently displayed screen and to confirm the set data.

1 2 3 4

Prg Esc

5 6

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Hardware architecture

Figure 2 - TRACER CH532 inputs and outputs

Prg Esc

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Table 1 - TRACER CH532 General description

Item Description

1 24 V Power supply (G+,GO-) 2 Yellow LED (Power on)

Red LED (Alarm) 3 Fuse (2A , 5x20) 4 Universal Analog inputs: NTC,0/1V,0/10V,0/20mA, 4/20mA) 5 Passive Analog Inputs (NTC,PT1000 , ON/OFF) 6 Analog Outputs (0/10V) 7 Digital Inputs (24Vac / Vdc) 8 Digital Inputs (230Vac or 24Vac / Vdc) 9 Relays digital output 10 User interface 11 Communication interface

Hardware architecture

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Table 2 - Inputs and output summary list

TRACER CH532 Medium TRACER CH532 Large

Single circuit units Dual circuit units

AI: Leaving water temperature sensor B3: NTC B3: NTC AI: Entering water temperature sensor B4: NTC B4: NTC AI: Ambient temperature sensor B5: NTC B5: NTC l AI: Suction pressure circuit 1 - LP1 transducer B1: 4..20mA B1: 4..20mA AI: Suction pressure circuit 2 - LP2 transducer B6: 4..20mA AI: Discharge pressure circuit 1 - HP1 transducer B2: 4..20mA B2: 4..20mA AI: Discharge pressure circuit 2 - HP2 transducer B7: 4..20mA AI: External water setpoint reset (option) B8: 0..10V-0..20mA B8: 0..10V-0..20mA AI: Unused B6, B7 B9, B10 DI: Compressor C circuit 1 fault ID1: 24Vac ID1: 24Vac DI: Compressor C circuit 2 fault ID17: 24Vac DI: Compressor A circuit 1 fault ID3: 24Vac ID3: 24Vac DI: Compressor B circuit 1 fault ID4: 24Vac ID4: 24Vac DI: Compressor A circuit 2 fault ID11: 24Vac DI: Compressor B circuit 2 fault ID12: 24Vac DI: High pressure Cut-out circuit 1 - HP1 switch ID14H: 230Vac ID14H: 230Vac DI: High pressure Cut-out circuit 2 - HP2 switch ID15H: 230Vac DI: Auxiliary set point On/Off ID8: 24Vac ID8: 24Vac DI: Fans circuit 1 fault ID5: 24Vac ID5: 24Vac DI: Fans circuit 2 fault ID18: 24Vac DI: Circuit 1 On/Off (or Unit On/Off CH 532 medium) ID13H: 230Vac ID13H: 230Vac DI: Circuit 2 On/Off ID16H: 230Vac DI: Water flow control input ID2: 24Vac ID2: 24Vac DI: Water pump 1 fault ID9: 24Vac ID9: 24Vac DI: Water pump 2 fault ID10: 24Vac ID10: 24Vac DI: Faults external reset ID6: 24Vac ID6: 24Vac DI: Cooling/Heating mode switch ID7: 24Vac ID7: 24Vac DI: Unused ID11, ID12 - DO: Compressor A circuit 1 output NO7: NO-230Vac NO7: NO-230Vac DO: Compressors B and C circuit 1 output NO8: NO-230Vac NO8: NO-230Vac DO: Compressor A circuit 2 output NO13: NO-230Vac DO: Compressors B and C circuit 2 output NO14: NO-230Vac DO: Fan 1 output Wye (Y) contactor - circuit 1 NO3: NO-230Vac NO3: NO-230Vac DO: Fan 1 output Delta (D) contactor - circuit 1 NO4: NO-230Vac NO4: NO-230Vac DO: Fan 2 output circuit 1 NO5: NO-230Vac NO5: NO-230Vac DO: Fan 3 output circuit 1 NO6: NO-230Vac NO6: NO-230Vac DO: Fan 1 output Wye (Y) contactor - circuit 2 NO15: NO-230Vac DO: Fan 1 output Delta (D) contactor - circuit 2 NO16: NO-230Vac DO: Fan 2 output circuit 2 NO17: NO-230Vac DO: Fan 3 output circuit 2 NO18: NO-230Vac DO: Water pump 1 NO1: NO-230Vac NO1: NO-230Vac DO: Water pump 2 NO2: NO-230Vac NO2: NO-230Vac DO: Antifreeze heater NC12: NO-230Vac NC12: NO-230Vac DO: Circuit 1 fault NO9: NO-230Vac NO9: NO-230Vac DO: Circuit 2 fault NO11: NO-230Vac DO: Unit status or additional heating demand NO10: NO-230Vac NO10: NO-230Vac DO: Unused NO11, NO13 - AO: Speed inverter - fan circuit 1 - HP1 output Y1: 0..10V Y1: 0..10V AO: Speed inverter - fan circuit 2 - HP2 output Y2: 0..10V AO: 4-way valve circuit 1 Y3: 0..10V + CONVONOFF Y3: 0..10V + CONVONOFF AO: Unused Y4 Y4 AO: 4-way valve circuit 2 Y5: 0..10V + CONVONOFF AO: Unused Y6 AO: Unused Y2 Y2

Legend:

AI: Analog Input DI: Digital Input AO: Analog Output DO: Digital Output CONVONOFF: ON/OFF converter

Hardware architecture

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TRACER CH532 offers customer the possibility to use inputs or outputs in order to:

- use an external water setpoint

reset using an analog input (refer to figure 3)

- use an auxiliary setpoint

- connect a remote on/off of the unit

or a circuit

- reset faults

- connect a remote Cooling/Heating

switch

- return a circuit fault

Note: External water setpoint

Based on a external signal input, it will be possible to offset the active setpoint from 0°C to 20°C. This function can be used in conjunction with the automatic setpoint reset function.

Figure 3

1. Leaving water temperature setpoint

2. Minimum value

3. Maximum value

4. Reset = 20°C

5. Active setpoint

Table 3: Customer Inputs and output summary list

TRACER CH532 Medium TRACER CH532 Large

Single circuit units Dual circuit units

AI External water setpoint reset (option) B8: 0..10V-0..20mA DI Auxiliary setpoint On/Off ID8: 24Vac DI Circuit 1 On/Off (or Unit On/Off

for single circuit units) ID13H: 230Vac DI Circuit 2 On/Off - ID16H: 230Vac DI Faults external reset ID6: 24Vac DI Cooling/Heating mode switch ID7: 24Vac DO Circuit 1 fault NO9: NO-230Vac DO Circuit 2 fault - NO11: NO-230Vac DO Unit status or additional

heating demand NO10: NO-230Vac

Legend:

AI: Analog Input DI: Digital Input DO: Digital Output

Ambient

temperature

Water setpoint

Hardware architecture

2 3

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Starting/stopping the unit

Once the unit is powered on (main disconnect switch closed) TRACER CH532 returns to the following display:

Line 2 gives current date and time Line 3 gives current leaving water temperature Line 4 gives the unit status:

OFF BY KEYB = Local stop UNIT ON = Unit running

Pressing from any screen will return to this screen.

1.Starting the unit:

1. Press

2.Following screen will be displayed:

3.Press

4.Press or to change from

“N” to “Y”

5.Press . Following screen will

be displayed:

2.Stopping the unit

1. Press to exit from any menu

and return to default display.

2.Press for 3 seconds unit will

stop, and following screen will be displayed:

3. Press to return to default

display

Esc

Note: In case of power failure unit will restart in the state (operating mode, setpoints…) it was in before the power failure and default screen will be displayed.

TRACER CH532 V2.0

01/05/04 00:00 Water Temp 20.0°C OFF BY KEYB.

Status Unit OFF BY KEYB.

Switch on unit ? N

TRACER CH532 V2.0

01/05/04 00:00 Water Temp 20.0°C UNIT ON

Unit Switched Off

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Menus

TRACER CH532 allows the user to

access 4 menus to display or adjust operation parameters:

•“Data display” menu - This menu

allows the user to visualize all operation parameters:

- Water and air temperatures

- Refrigerant pressures

- Saturated refrigerant temperatures

- Compressors status

- Compressor running hours

- Number of compressors starts

- Unit operating mode

- Compressors failures counters

•“Settings” menu - This menu is

password protected. It allows access to the settings of:

- Setpoints

- Offset of cooling and heating setpoints

- Unit operation validation

- Customer inputs and outputs

•“Clock” menu - This menu is

password protected. It allows access to the settings of:

- Day of the week, hour, date

- Daily or weekly program

- Hourly zone program

•“Configuration” menu - This menu

is password protected. It allows to adjust or change:

- Unit definition

- Compressors timers

- High pressure control

- Dead band, antifreeze and heater setpoints

- Type of sensors and transducers

- Operation protections

- Cooling mode limitations

- Defrost parameters

- Compressor alarms

Accessing the menus

From any screen displayed, press

, TRACER CH532 will then

display the following screen:

1. or allow the cursor to move from line to line thus selecting one of the 4 menus.

Note:The selection is displayed in capital characters

2. Once one line is selected,

press to validate the choice.

3. Pressing will exit the menu selection mode and return to default display.

Esc

Data Display Settings Clock Configuration

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