Mitsubishi Electric PKFY-P50VGM-A Service Manual download pdf (Page 22)

PHOTOSOPERATION PROCEDURE

3. REMOVING THE INDOOR CONTROLLER BOARD

AND WIRELESS CONTROLLER BOARD

(1) Remove the front panel. (Refer to 2.)

(2) Remove the room themp. thermistor TH21. (see Photo 3)

(3) Remove the electrical box covers (screw 4 × 12).

(See Photo 3)

(4) Disconnect the connectors on the indoor controller board.

(5) Remove the switch board cover.

(6) Pull out the indoor controller board toward you, then

disconnect the rest of connectors.

Remove the indoor controller board and switch board.

(7) Remove the holder of wireless controller board.

(8) Disconnect the connector of wireless controller board and

remove the wireless controller board from the holder.

Photo 3

Indoor controller board (I.B)

4. REMOVING THE ELECTRICAL BOX

(1) Remove the front panel. (Refer to 2.)

(2) Remove the electrical box covers. (See Photo 3)

(3) Remove the nozzle assembly. (Refer to 5.)

(4) Disconnect the transmission wiring of TB5.

(5) Disconnect the power supply wiring of TB2.

(6) Disconnect the wiring of MA-remote controller (TB15).

(7) Disconnect the connectors on the indoor controller board.

(8) Disconnect the connector for the ground wire. (See Photo 5)

(9) Pull the disconnected lead wire out from the electrical box.

(

) Remove the screw of electrical box. (See Photo 6)

(

) Push up the upper fixture (See Photo 5) catch to remove

the box, then pull the right fixture (See Photo 4) and

remove it from the box fixture.

Fixture (upper)

Terminal

block (TB2)

Photo 4

Photo 5

Electrical box cover (top)

Electrical box

cover (side)

Screw (side cover)

Holder of wireless

controller board

Fixture

(right)

Connector for ground wire

Photo 6

Screw (Electrical box)

Screw

(side

cover)

Switch board cover

Nozzle assembly

Screw (top cover)

Room temp. thermistor (TH21)

Fixture

(right)

Terminal

block (TB5)

Terminal

block (TB15)

Room temp.

thermistor

(TH21)

1 2 ... 17 18 19 20 21 22 23 24

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Mitsubishi Electric PKFY-P50VGM-A Service Manual Page 22

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