Vertiv | Liebert XDH | User Manual
63
System Operation And Maintenance
7.2.Routine Inspection Items (Semi-Annual)
See
for the routine maintenance items semi-annual.
Table 7-2 Routine Check List of Items (Semi-Annual)
Component
Inspection Items
Remarks
Filter
Check for clogging or damage
Check whether the unit prompts for filter maintenance
Clean the filter
Fan
Check fan blades are not distorted
Check whether the fan generates any noise during running
Check whether any fan stops rotating
Check and fasten the circuit connectors
Electronic
expansion valve
Check whether the wiring and coil of the electronic expansion valve
control board are loose
Cooling circulation
system
Check the cleanliness of the evaporator surface
Check whether the refrigeration pipe has leakage and proper support
Check whether refrigerant is filled into the system (using the fluid
inspection
mirror to check)
Electrical control
part
Check whether the main air circuit breaker and the air circuit breaker cable
of the power module are tightly connected
Check and fasten the circuit connectors
Check whether the cables and meter reading of each sensor are within
prescribed range
Drainage pump
Check whether there are impurities and debris in the water drainage pan
Check the drain pump connection line for clogging
Check whether the cable of the drain pump is loose
