Mitsubishi FDT71VH - Page 173

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172
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'20 • PAC-SM-351
Precaut ions for safety
Read these "Precauons for safety" carefully before starng 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.
The electrical components are under high voltage by the operaon 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 aer collecng 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.
1.
To remove the lid of control box
(1)
Remove 2 lid fixing screws and remove it.
2.
To remove the printed circuit board (PCB)
(1)
Remove the lid of control box.(See No.1)
(2)
Pull off all the inserted connectors.
(3)
Take off 6 fixing hooks and remove it.
3.
To remove the impeller and motor (FM)
(1)
Remove the lid of control box.(See No.1)
4.
To remove the drain pan
(2)
Disconnect the motor connector(CNMx) on PCB in control box.
(1)
Remove the lid of control box.(See No.1)
(3)
Remove 5 bellmouth fixing screws and remove it.(
mark)
(2)
Pull off all the inserted connectors.
(4)
Remove the impeller fixing nut and remove it.(
mark)
(3)
Remove 2 plate fixing screws and remove it.
(5)
Remove 2 plate fixing screws and remove it.(
mark)
(
mark)
(6)
Remove 3 motor fixing nuts and remove it.(
mark)
(4)
Remove 2 lid fixing screws and remove it.
(
mark)
(5)
Remove 4 drain pan fixing screws and remove it.
(
mark)
5.
To remove drain pump (DM) and flot switch (FS)
(1)
Remove the drain pan.(See No.4)
(2)
Pull the hose to the arrow direcon and remove it.
(3)
Remove 3 drain pump fixing screws and remove it.(
mark)
(4)
Remove the flot switch fixing screw and remove it.(
mark)
6.
To remove the temperature sensors (example"Thi-R1")
(1)
Remove the drain pan.(See No.4)
(2)
Pull out the temperature sensor"Thi-R1" from the sensor holder.
DISASSEMBLY PROCEDURE
PROCEDURE & PICTURES
(FDT series)
PJF012D045
1
1.3 DISASSEMBLY PROCEDURE
(1) Indoor units
(a) FDT series
PJF012D045
Precaut ions for safety
Read these "Precauons for safety" carefully before starng 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.
The electrical components are under high voltage by the operaon 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 aer collecng 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.
1.
To remove the lid of control box
(1)
Remove 2 lid fixing screws and remove it.
2.
To remove the printed circuit board (PCB)
(1)
Remove the lid of control box.(See No.1)
(2)
Pull off all the inserted connectors.
(3)
Take off 6 fixing hooks and remove it.
3.
To remove the impeller and motor (FM)
(1)
Remove the lid of control box.(See No.1)
4.
To remove the drain pan
(2)
Disconnect the motor connector(CNMx) on PCB in control box.
(1)
Remove the lid of control box.(See No.1)
(3)
Remove 5 bellmouth fixing screws and remove it.(
mark)
(2)
Pull off all the inserted connectors.
(4)
Remove the impeller fixing nut and remove it.(
mark)
(3)
Remove 2 plate fixing screws and remove it.
(5)
Remove 2 plate fixing screws and remove it.(
mark)
(
mark)
(6)
Remove 3 motor fixing nuts and remove it.(
mark)
(4)
Remove 2 lid fixing screws and remove it.
(
mark)
(5)
Remove 4 drain pan fixing screws and remove it.
(
mark)
5.
To remove drain pump (DM) and flot switch (FS)
(1)
Remove the drain pan.(See No.4)
(2)
Pull the hose to the arrow direcon and remove it.
(3)
Remove 3 drain pump fixing screws and remove it.(
mark)
(4)
Remove the flot switch fixing screw and remove it.(
mark)
6.
To remove the temperature sensors (example"Thi-R1")
(1)
Remove the drain pan.(See No.4)
(2)
Pull out the temperature sensor"Thi-R1" from the sensor holder.
DISASSEMBLY PROCEDURE
PROCEDURE & PICTURES
(FDT series)
PJF012D045
1