Vertiv | Liebert® CRV4 | User Manual 111
Appendix IV: Routine Maintenance Inspection Items
(Monthly)
Date: _____________________________ Prepared by: _____________________________
Model: _____________________________ Serial Number: _____________________________
Routine Maintenance Inspection Items Checklist (Monthly)
Part Check Item Remark
Filter
Check for clogging or damage
Check the lter clog switch
Clean the lter
Fan
Check for fan blades are not distorted.
Check the bearings are not worn out
Belt tightness and its state
Compressor
Check for leakage
Listen to the operation sound, observe the operation vibration
Air-cooled condenser
(if used)
Check the ns are clean
The fan base should be rm
The fan vibration absorber is not deteriorated or damaged
The SPD board should be eective (in the storming seasons, the SPD
board should be check once a week)
The refrigerant pipes are properly supported
Refrigeration cycle
system
Check the suction pressure
Check the discharge pressure
Check the refrigerant pipes for signs of leaks
Check the moisture conditions in the system through the sight glass
Check the Electronic Expansion Valve (EEV)
Heating system
Check the re-heater operation
Check the erosion situation of the components
Signature_________________________________________________________
Note: Please copy this table as a record keeping purposes.
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