Mitsubishi Heavy Industries FDT100VNAWVH Service Manual page 181

When disassembling, be sure to turn off the power. When disassembling the electrical components, check the electrical wiring diagram.
The electrical components are under high voltage by the operation of the booster capacitor.
Fully discharge the capacitor before commencing a repair work. Failure to observe this warning could result in electric shock.
When parts of refrigerant cycle is disassembled by welding, be sure to work after collecting a refrigerant, if the refrigerant isn't
collected, the unit might explode.
Be sure to collect refrigerant without spreading it in the air.
These contents are an example. Please refer to a similar part of actual unit.
(d) FDE series
5. To remove the impeller and motor (FM)
(1) Remove the lid of control box.(See No.1)
(2) Disconnect the motor connector(CNFx) in the middle way of wiring.
(3) Remove the fan casing fixing screw.(
(4) Remove the impeller fixing screw and remove it.(
PROCEDURE & PICTURES
4. To remove the printed circuit board (PCB)
(1) Remove the lid of control box.(See No.2)
(2) Pull off all the inserted connectors.
Control PCB
(3) Take off 4 control PCB fixing locking supports and remove it.(
Power PCB
(4) Take off 4 power PCB fixing locking supports and remove it.(
mark) Take off the fan casing fixing hook and remove it.(
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(FDE series)
1. To remove air inlet grille.
(1) Slide the hook in the direction of
the arrow.(
(2) Remove 4 wire fixing screws.(
(3) Remove 4 air inlet grille fixing screws.
(
2. To remove the lid of control box
(1) To remove air inlet grille.(See.No.1)
(2) Remove 2 wire fixing screws and remove it.
(
(3) Remove 2 lid fixing screws and remove it.
(
3. To remove the control box
(1) Remove the lid of control box.(See No.2)
(2) Pull off all the inserted connectors.
(3) Remove 2 control box fixing screws and
remve it.(
(4) Pull out the control box.
mark) (5) Remove 2 motor fixing screws and remove it.(
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'19 • PAC-SM-309
PFA012D631
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