Mitsubishi Heavy Industries MHI FDU71VNXVF1 Technical Manual page 120

Inverter duct connected-high static pressure type air-conditioners
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(ii) Power PCB
This PCB is a general PCB. Replace the PCB according to this instruction.
1)Replace the PCB
a) Unscrew terminal(Arrow A) of the "E2" wiring(yellow/green) that is connected to PCB.
b) Replace the PCB only after all the wirings connected to the connector are removed.
c) Fix the board such that it will not p inch any of the wires.
d) Reconnect the wirings to the PCB. Wiring connector color should match with the color of connector of the PCB.
e) Screw back the terminal(Arrow A) of the "E2" wiring, that was removed in 1.
2)Power PCB
Parts mounting are different by the kind of PCB.
CNW1(White)
Control PCB
CNW3(White)
Terminal block
CNM2(Black)
CNM1(White)
Fan motor2
119
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Fan motor1
'12 • PAC-T-178
PSC012D021
CNWR(White)
Reactor
CNW0(White)
Terminal block
Part number

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