Vertiv Liebert CRV Plus, User Manual, Page: 80 / 98

Vertiv | Liebert CRV + | User Manual 70
Therefore, it is essential that all the checks are performed to ensure a smooth flow in operations. The table
under Listing 3.6 depicts the inspection tasks and actions that need to be implemented and carried out
every month during maintenance of the various components in the CRV+ series of air conditioners.
Listing 3.6
Components Item Remark
Filter
Check for clogging or damage
Check the filter clogging switch
Clean the filter
Fan
The Fan blades are not distorted
The bearings are not worn out
Compressor
Check for leakage
Listen to the operation sound, observe the operation vibration
Air cooled
condenser
Make sure that the condenser coil is clear from dirt and debris.
Clean if required.
The fan base should be firm
The fan vibration absorber is not deteriorated or damaged
The SPD board should be effective (in the seasons when there
are storms, the SPD board should be checked once a week)
The refrigerant pipes are properly supported
Refrigeration
system
Check the suction pressure
Check the discharge pressure
Check the refrigerant pipes for signs of leaks
Check the moisture condition in the system through the sight
glass
Check the electronic expansion valve
Heating
system
Check the re-heater operation
Check the erosion situation of the components
3.2.2 Routine Maintenance and Inspection (Half -Yearly)
Following is a checklist (Refer Listing 3.7) of the items and functions that need to be checked bi-annually
to ensure a smooth operational flow and check the functionality as well as the wear-and-tear of the
components in the Liebert CRV+ range of air conditioners.
Listing 3.7
Components Item Remark
Air Filter
Check for clogging or damage
Check the filter clogging switch
Clean the filter
Fan
The Fan blades are not distorted
The bearings are not worn out
Check and fasten the circuit connections
Compressor
Check for leakage
Listen to the operation sound, observe the operation
vibration
Check and fasten the circuit connections
Air-cooled
condenser (if used)
Check the fins cleanness
The fan base should be firm
The fan vibration absorber is not deteriorated or damaged
The SPD board should be effective (in the seasons, when
the storms are common, the SPD board should be checked