ABB IRC5P, Product Manual, Page: 107 / 220

5 Installation and Commissioning
Product Manual, Control Cabinet IRC5P 3HNA009834-001 en Rev.06 107
5.7 Misc. System Connections
Temperature Adjustment
This procedure describes how to change the temperature setting.
Important:
To minimize condensation, it is important to set the internal temperature
not lower than actually needed.
1. Switch off power supply for cooler.
2. Remove louvred grill.
3. Release display lock ( 54 /1) from behind and pull the display slightly forwards.
Figure 54 Display removal
4. Carefully raise cooler controller trim panel, e.g. using your thumb or a flat
screwdriver ( 54 /2), and remove it.
5. Set required temperature on temperature setting device ( 54 /3).
6. Carefully push cooler controller trim panel onto display until it snaps into
place.
7. Re-insert display into louvred grill.
8. Install louvred grill on cooler.
LED Indicators
The following provides a description of the LED indicators on the cooler controller
trim panel.
1
2
3
Description Remedy / Source of fault
line
Green - Power supply on, OK
Blinking green - Door switch detects open
control cabinet door. In order to avoid condensation, close door.
If door is closed, check door switch.
alarm
Red - The enclosure internal temperature is 5K
above the set temperature.
Blinking red - High pressure alarm in the
cooling circuit. Check temperature setting.
Check condenser and clean if necessary.
Check filter and replace if necessary.
Check that the dissipated heat loss does not
exceed the useful cooling output of the cooler.
After rectifying the fault, you need to reset the
cooler controller manually, ref
’Resetting
Cooler Controller’ on page 108.