Periodic Inspection Items - Carrier 30AWH004HB Service Manual

8.4 Periodic Inspection Items

Unit
Insulation measurement (Power source circuit/
Compressor)
Operation check
Refrigerant leakage/ Water leakage inspection.
Water heat exchanger inspection (Internal dirt
and clogging)
Inlet / Outlet water temperature measurement
Circulation pump inspection
Automatic air purge valve inspection
Expansion vessel
Heater assembly
Flow switch
Safety valve
Power source measurement (No-load voltage/
Rated operation)
Operation frequency (Unit operation check)
Air heat exchanger inspection (Dirt and clogging)
Fan inspection (Scratch, damage)
Cycle parts (Compressor, 4-way valve, Pulse motor
valve)
Inverter control board, GMC board, Terminal block
SM_30AW.indd 119
Frequency
Annually
Annually
Annually
Annually
Annually
Annually
Annually
Annually
Annually
Annually
Annually
Annually
Annually
Annually
Annually
Annually
Annually
119
Periodic inspection details
Insulation measurement with a mega tester
Hot water supply/ Heating/ Cooling operation
check with remote controller.
Visual inspection and check with a leak tester: No
leakage must be found.
Checking for water dirtiness in a closed cycle,
Cleaning.
Temperature measurement: Temperature measu-
rement during an operation.
No leakage or abnormal noise must be found
(Replacement every 10 years: Charged).
Water leakage, Air vent.
Visual check for charge pressure abnormality,
water leakage, or corrosion.
Check for appearance damage, deformation, or
loose terminal.
Operation check while running
Water leakage, Appearance check, Drainage
check.
Electronic voltage measurement: 230V ±23V
Frequency check by rated operation
Visual inspection, Clear clogging
Check for scratches or damages to the fan or
abnormal motor sound
Operation check by trial run
Check for loose connector and connecting
terminal
30AW
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