Operating Settings For The Electronic Controller - omi CHW 09 Manual De Uso Y Mantenimiento

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6.4

OPERATING SETTINGS FOR THE ELECTRONIC CONTROLLER

All work on the chiller may only be carried out by specialist personnel!
The chiller is supplied pre-adjusted for normal operating conditions and normally does not require any modifications,
except for the setting the temperature of the cooling medium to the desired value. Checking and any possible adapta-
tion of the operating parameters is carried out via the controls on the front of the chiller and via the control panel. The
chillers are equipped with an operating thermostat to maintain the cooling medium temperature at a constant value.
The various models may be equipped with two types of operating thermostats:
Type Display on the electronic controller
Type
A
Compressor active (ON) – programming phase (flashes); anti-short-circuit delay active (flashes)
Defrosting function (ON) – programming phase (flashes)
AUX
Second relay active (ON)
A temperature alarm has been triggered (ON)
Type
B
degrees Celsius
bar
Compressor 1
Unit in standby*
High-pressure alarm
Antifreeze heating activated
Flow alarm
Water pump: symbol lights up when
water pump is active
Type
C
degrees Celsius
bar
Compressor 1
Compressor 3
Compressor 5
Antifreeze heating activated
Flow alarm
Water pump: symbol lights up when
water pump is active
Models
CHW 11 to 36
CHG 08
CHW 29 to 602
CHO 29 to 242
CHG 24 to 140
degrees Fahrenheit
PSI
Compressor 2
General alarm
Low-pressure alarm
Time display
Function menu activated
Condenser fan: symbol lights up when the dig-
ital output (relay) is configured as a fan
ON/OFF or symbol lights up when the propor-
tional output to the condenser fan is active.
CHW 682 to 1252 (Checklist 1)
CHW 1452 to 3652 (Checklist 2)
CHG 180 to 365 (Checklist 1)
degrees Fahrenheit
PSI
Compressor 2
Compressor 4
Compressor 6
General alarm
Time display
Condenser fan: symbol lights up when the
digital output (relay) is configured as a fan
ON/OFF or symbol lights up when the propor-
tional output to the condenser fan is active.
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22/07/2009