12Liebert PCW - UM - 273895 - 04.10.2018
16)When all the cables are xed, close the electrical panel. Make
sure not to damage the electrical cable between the electrical panel
and the unit. Use the two hand wheels to close the electrical panel.
17) Reposition all the panels removed for the cable connection:
• The electrical panel cover
• The internal bottom panels with the appropriate screws
• The fan electrical connection cover inside the fan module
• The panels or grids removed from the fan module
Make sure not to damage the electrical cable between the panels
and the unit.
Upow:
Make sure that all electrical cables are correctly run between the
two modules:
• EC fan power cable form the coil module through the cable
bushing into the coil module.
• EC fan signal cables from the fan module through the cable
bushing into the coil module.
• If Electrical Heater Installed: power cables & thermostat ca-
bles from the fan module through the cable bushing into the
coil module.
See chapter 3.2 for details.
1) Remove the upper front panel to get the access to the fan top
plenum.
2) In the fan top plenum remove the electrical connections cover.
Electrical
connections
cover
3) Connect the EC Fan power
cable with the EC Fan power
connector.
4) Reposition the connector
cover on the fan module. Do not
damage the cable between the
cover and the fan module.
5) Remove the electrical panel front cover by unscrewing the 4
screws that hold it.
6) Unscrew the 2 screws posi-
tioned on the right inside the
electrical panel.
7) Rotate the electrical panel on the right to get to the back of it.
8) Connect all the cables to the electrical panel connectors:
• EC fan signal cables
• Electrical Heaters (if installed)
• Std1st stage: connect the electrical heaters cables to the
connector Xp5.
• Opt.2nd stage, from PH045 to PH081: connect the two
electrical heaters cables to the connectors Xp5, Xp6.
• Electrical Heater thermostats (if installed)
9) Put together the cables on the back of the electrical panel. Use
appropriate cable ties to x them to the electrical panel.
EC Fan
power
connector
screws
Cables
Electrical Heater ther-
mostats connectors
Electrical Heater ther-
mostat connectors
EC Fan signal
Electrical Heater con-
nectors Xp5, Xp6, Xp7
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