Disassembly Procedure - Mitsubishi Heavy Industries FDT100VNAWVH Service Manual

Micro inverter packaged air-conditioners (split system, air to air heat pump type)
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1.3 DISASSEMBLY PROCEDURE

Read these "Precautions for safety" carefully before starting disassembly work and do it in the proper way.
Read these "Precautions for safety" carefully before starting disassembly work and do it in the proper way.
When disassembling, be sure to turn off the power. When disassembling the electrical components, check the electrical wiring diagram.
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.
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.
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
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.
collected, the unit might explode.
Be sure to collect refrigerant without spreading it in the air.
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.
These contents are an example. Please refer to a similar part of actual unit.
(1) Indoor unit
(a) FDT series
3. To remove the impeller and motor (FM)
3. To remove the impeller and motor (FM)
(1) Remove the lid of control box.(See No.1)
(1) Remove the lid of control box.(See No.1)
(2) Disconnect the motor connector(CNMx) on PCB in control box.
(2) Disconnect the motor connector(CNMx) on PCB in control box.
(3) Remove 5 bellmouth fixing screws and remove it.(
(3) Remove 5 bellmouth fixing screws and remove it.(
(4) Remove the impeller fixing nut and remove it.(
(4) Remove the impeller fixing nut and remove it.(
(5) Remove 2 plate fixing screws and remove it.(
(5) Remove 2 plate fixing screws and remove it.(
(6) Remove 3 motor fixing nuts and remove it.(
(6) Remove 3 motor fixing nuts and remove it.(
5. To remove drain pump (DM) and flot switch (FS)
5. To remove drain pump (DM) and flot switch (FS)
(1) Remove the drain pan.(See No.4)
(1) Remove the drain pan.(See No.4)
(2) Pull the hose to the arrow direction and remove it.
(2) Pull the hose to the arrow direction and remove it.
(3) Remove 3 drain pump fixing screws and remove it.(
(3) Remove 3 drain pump fixing screws and remove it.(
(4) Remove the flot switch fixing screw and remove it.(
(4) Remove the flot switch fixing screw and remove it.(
DISASSEMBLY PROCEDURE
DISASSEMBLY PROCEDURE
Precaut ions for safety
Precaut ions for safety
PROCEDURE & PICTURES
PROCEDURE & PICTURES
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6. To remove the thermistors (example"Thi-R1")
6. To remove the thermistors (example"Thi-R1")
(1) Remove the drain pan.(See No.4)
(1) Remove the drain pan.(See No.4)
(2) Pull out the thermistor"Thi-R1" from the sensor holder.
(2) Pull out the thermistor"Thi-R1" from the sensor holder.
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(FDT series)
(FDT series)
1. To remove the lid of control box
1. To remove the lid of control box
(1) Remove 2 lid fixing screws and remove it.
(1) Remove 2 lid fixing screws and remove it.
2. To remove the printed circuit board (PCB)
2. To remove the printed circuit board (PCB)
(1) Remove the lid of control box.(See No.1)
(1) Remove the lid of control box.(See No.1)
(2) Pull off all the inserted connectors.
(2) Pull off all the inserted connectors.
(3) Take off 6 fixing hooks and remove it.
(3) Take off 6 fixing hooks and remove it.
4. To remove the drain pan
4. To remove the drain pan
(1) Remove the lid of control box.(See No.1)
(1) Remove the lid of control box.(See No.1)
(2) Pull off all the inserted connectors.
(2) Pull off all the inserted connectors.
(3) Remove 2 plate fixing screws and remove it.
(3) Remove 2 plate fixing screws and remove it.
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(4) Remove 2 lid fixing screws and remove it.
(4) Remove 2 lid fixing screws and remove it.
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(5) Remove 4 drain pan fixing screws and remove it.
(5) Remove 4 drain pan fixing screws and remove it.
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174
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'19 • PAC-SM-309
PJF012D045
PJF012D045
PJF012D045
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