Mitsubishi Heavy Industries FDT90VNPWVH Service Manual page 54

Standard inverter packaged air-conditioners
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b) Power PCB
This PCB is a general PCB. Replace the PCB according to this instruction.
This PCB is a general PCB. Replace the PCB according to this instruction.
i) Replace the PCB
i)Replace the PCB
① Unscrew terminal of the wiring(yellow/green) connected to Terminal block (CNWO) from the box.
� Unscrew terminal(Arrow A) of the "E2" wiring(yellow/green) that is connected to PCB.
② Replace the PCB only after all the wirings connected to the connector are removed.
� Replace the PCB only after all the wirings connected to the connector are removed.
③ Fix the board such that it will not pinch any of the wires.
� Fix the board such that it will not p inch any of the wires.
④ Reconnect the wirings to the PCB. Wiring connector color should match with the color of connector of the PCB.
� Reconnect the wirings to the PCB. Wiring connector color should match with the color of connector of the PCB.
� Screw back the terminal(Arrow A) of the "E2" wiring, that was removed in 1.
⑤ Screw back the terminal of wiring, that was removed in ①.
ii)Power PCB
ii) Power PCB
Parts mounting are different by the kind of PCB.
Parts mounting are different by the kind of
• Models FDE71VH
• Models FDU100VH
CNW3(White)
Terminal block
CNW1(White)
Control PCB
CNW1(White)
Control PCB
CNW3(White)
Terminal block
• Models FDUM100VH
• Models FDUM71VH
CNW3(White)
Terminal block
CNW1(White)
Control PCB
PCB
.
CNM1(White)
Part number
CNM2(Black)
Fan motor2
CNM2(Black)
Fan motor2
Part number
53
-
-
Fan motor
CNM1(White)
Fan motor1
CNM1(White)
Fan motor1
CNWR(White)
Reactor
'19 • PAC-SM-334
PSC012D021
B
CNW0(White)
Terminal block
CNWR(White)
Reactor
CNW0(White)
Terminal block
Part number
PSB012D993
CNW0(White)
Terminal block

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