AIRSYS 13E1C3 - Operation Checklist

Chapter 4: Preventive Maintenance
Operation Checklist
Page 71
Operation Checklist
If you experience a problem with the system, 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 1 supply fan is working(1)
Verify WPU1 heater works normally (2)
Verify WPU 1 compressor works normally (3)
At the same time, check if the WPU 1 condenser fan works normally.
Verify WPU 1 free cooling is working (4)
Verify WPU 2 supply fan works normally(5)
Verify WPU 2 heater works normally (6)
Verify WPU 2 compressor works normally(7)
At the same time, check if the WPU 2 condenser fan works normally.
Verify WPU 2 free cooling works normally (8)
Record these values using pressure gauges or multi-meter readings
Outdoor Temperature: _______________________Indoor Temperature: _______________________________
The WPU 1 low pressure value
R410a system, normal range:8~12Bar/116~174PSI
R407c system, normal range: 4-7Bar/58-101.5PSI
Bar/PSI
The WPU 1 high pressure value
R410a system normal range:25~30Bar/362.5~435PSI
R407c system normal range, 16-20Bar/232-290PSI
Bar/PSI
The WPU 1 current of the compressor (refer to nameplate)
Amp
The WPU 1 current of the supply fan (refer to nameplate)
Amp
The WPU 2 low pressure value
R410a normal range:8~12Bar/116~174PSI
R407c normal range:4-7Bar/58-101.5PSI
Bar/PSI
The WPU 2 high pressure value
R410a normal range:25~30Bar/362.5~435PSI
R407c normal range:16-20Bar/232-290PSI
Bar/PSI
The WPU 2 current of the compressor (refer to nameplate)
Amp
The WPU 2 current of the supply fan (refer to nameplate)
Amp