Vertiv Liebert PCW - Upflow Units; EC Fan Replacement

17Liebert PCW - UM - 273895 - 04.10.2018
10.5 - EC fan replacement
WARNING!
There is a risk of the fans and panel falling down and causing an injury during the replacement operation.
Due to the weight of the fans (approx. 35 kg) and a panel (up to 25kg), two technicians are required to carry out the fan re-
placement.
BEFORE COMMENCING, ALWAYS CUT ALL THE ELECTRIC SUPPLY CIRCUITS OFF, ON THE MACHINE.
Only properly trained and qualied personnel should work on this equipment.
How to remove the fans
Remove the front panel (or a grid) to get the access to the fan bays (see pictures below).
NB:
• Downow Down - remove oor panels positioned in front of the unit to get the access to the fan section frontal grid. Remove any
obstacles in front of the fans to allow the fan extraction (e.g. the raised oor structure, piping)
Upow
Downow Up
Downow Frontal
Downow Down
UPFLOW UNITS
Air Filter Air Filter
Filter Bracket
Air Filter Air Filter
1. Switch o󰀨 the PCW unit and open the
front panel with the key.
NB: some components inside the unit
could be still at high temperature,wait a
few minutes before starting the mainte-
nance operation.
2. Unscrew two screws and loosen the lter
brackets (do not remove completely).
3. Remove the air lters from the coils start-
ing form the upper lter, then proceed
with the lower lter