Air Filter Check Or Substitution - Emerson Liebert CRV User Manual

Maintenance / Spare Parts
10.4

Air filter check or substitution

Every month it's important to check the state of air filter to maintain a good efficiency of air distri-
bution throw the evaporator coil.
First switch off the CRV, then open the rear panel with the key, access to the fan panel rotating the
three locks with the black key. Wait until fans are stopped (when you open the first lock, you also
open a security switch that cut the current se picture below).
To extract the filters, push up the upper one and rotate. Than move the other one up and repeat as
before:
After cleaning or replacing the filter, before reassembly , check that the position of air differential
pressure switch pipes (clogged filter alarm) would be in right position and in right order.
Check also that the drain trays would be clean and the pipe fix
Before re-start the unit be sure that micro-switches are properly close otherwise unit maintains a
safety status.
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