American Standard TRACER CH532 manual Operating limits cooling Low Amb Cooling Low Amb Limit

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Unit configuration menu: “Configuration”

9. Operating limits (cooling)

Low Amb Cooling

On

Low Amb Limit

-10.0°C

CW High Limit

On

CW High Limit

15.0°C

 

 

Low ambient temperature limitation:

On: (factory setting) Low ambiant limited

Off: Low ambient temperature not limited

Low ambient limit: -20 to 20°C: factory setting -10°C

Chilled water high limitation:

On: High water temperature limited (factory setting)

Off: High water temperature not limited

Chilled water high limit: 10 to 20 °C: Factory setting 15°C

10. Defrost demand setpoint

Low Amb Heat

-10.0°C

StP Min Temp

10.0°C

Defrost Max

12.0°C

StP Max Temp

22.0°C

 

 

Low ambient heating: -20 to 20°C, factory setting -10°C

Setpoint at minimum ambient: 1 to 30°C, (factory setting 10°C) Maximum ambient: -20 to 20°C: (factory setting 12°C)

Setpoint at maximum ambient: 1 to 30°C, (factory setting 22°C)

11. Defrost cycle termination

To access one of the parameters

displayed, press

 

and change

value using

or

. Confirm the

value by pressing

 

Term Stp

 

20.0 bar

Drying time

 

12 s

Max Defrost

 

7 min

Min cycle

 

25 min

Term StP: Defrost termination setpoint (10 to 30bar - factory setting: 20 bar)

Drying time: Drying time (5 to 30

seconds - factory setting: 12s)

Max Defrost: Maximum defrost time (5 to 30 minutes - factory setting:

7 min)

Min cycle: Minimum time between defrost cycle (15 to 60min - factory setting: 25 min)

Note: Dual circuits have two independent refrigerant circuits. Defrost cycle will only occur on the circuit that needs it. The other circuit will continue its normal operation if required.

12. Compressor alarm

To access one of the parameters

displayed, press and change

value using or . Confirm the value by pressing

Compressor alarm

00000 h

Default parameters?

N

Compressor alarm: Operating hours for a warning (0 to 999000 hours by 1000 hours)

Setting compressor alarm at 000000 h will disable the function.

Note: Total operating hours = compressor running hours + 3 x compressor starts

Default parameters?: Set the default parameters

Y: Reset all parameters

N: Keep all parameters

Note: When resetting, all parameters programmed on site will be definitively lost. Only factory default set parameters will be kept. Full configuration of the unit will have to be checked.

CG-SV01B-E4

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Contents Tracer CH532 Chiller controller User guide About this manual General informationContents Tracer CH532 Presentation Tracer CH532 inputs and outputs Hardware architectureDescription Tracer CH532 General descriptionTracer CH532 Medium Inputs and output summary listNO11, NO13 Y3 0..10V + ConvonoffCustomer Inputs and output summary list Starting/stopping the unit Menus Accessing the menusStp Local 07.0C Display menu Data displayCustomer settings menu Settings Mode Cooling Comp seq Auto Ckt1 Enable Operating modeCustomer Inputs and Outputs Status output NO10Chiller control Mode Local Remote Remote ModeClock Setting menu Clock Weekly program Program Hourly zone DisableWeekly Start Mon Stop FriUnit configuration menu Configuration Pump Pump protection input HP Control Compressors timersInvert Inverter Control dead bandsPress probe 20mA Min Press 0bar Max Press 30.0bar Sensors and transducersPT100 10V 0..1V 0..20mACompressor alarm CW High Limit 15.0C Low ambient temperature limitationDefault parameters? Set the default parameters Operating limits cooling Low Amb Cooling Low Amb LimitAlarms Alarms display and ResettingAlarms history Status, warnings and alarm messages MessageUnit status Description No Message History events recordDescription LonTalk optionRed Service LED LED status Meaning/Function LED meaning and functionGreen Status LED LED status Meaning/Function HVACHEAT=1, HVACCOOL=3 Cable characteristics Characteristic impedance ohmsAttenuation dB/1000 feet at 20C maximum CG-SV01B-E4 CG-SV01B-E4 CG-SV01B-E4 Safety recommendations