AIRSYS UNICOOL 28V1B5 - 6.2 Operation Checklist

Preventative Maintenance
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• Check if the nuts are properly tightened, as shown in the following images
6.2 Operation Checklist
If a problem with the system is experienced, use this checklist to verify the system and determine the root
cause. Keep these records for future inspections.
Address: ___________________Site No.: _______________________ Date: _____________________
Unit Factory Number:_____________________________ (refer to the unit name plate)
Check Items
or
Step-Test or Manual Operation
Verify WPU supply fan(s) work normally
Verify WPU heater work normally
Verify WPU compressor works normally
At the same time, check if the WPU condenser fan works normally.
Verify WPU free cooling is working
Record these values using pressure gauges, built-in sensors, or multi-meter readings
Outdoor Temperature: _______________________Indoor Temperature: _______________________________
The WPU suction pressure
R410a system, normal range: 8-12Bar/116-174PSI
Bar/PSI
The WPU discharge pressure
R410a system normal range: 25-30Bar/362.5-435PSI
Bar/PSI
The WPU current of the compressor (refer to nameplate)
Amp
The WPU current of the supply fan (refer to nameplate)
Amp
The WPU input voltage
VAC