Mitsumi electronic PKA-A12HA4, PKA-A18HA4 Operation Procedure, Photos, Cond/Eva Temp. Thermistor

Models: PKA-A18HA4 PKA-A12HA4

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8. REMOVING THE LIQUID PIPE THERMISTOR AND

 

OPERATION PROCEDURE

 

 

PHOTOS

 

 

 

 

 

 

 

8. REMOVING THE LIQUID PIPE THERMISTOR AND

Photo 12

 

 

Condenser/evaporator temp.

COND/EVA TEMP. THERMISTOR

 

 

 

thermistor (TH5)

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

Heat exchanger

 

 

 

 

 

 

(2) Remove the electrical box cover.

 

 

 

 

 

 

 

 

 

 

 

 

 

(3) Remove the motor band.

 

 

 

 

 

 

 

(4) Cut the wiring fixed band.

 

 

 

 

 

 

 

(5) Remove the liquid pipe thermistor and cond/eva temp. ther-

 

 

 

 

 

 

 

 

mistor.

 

 

 

 

 

 

 

(6) Disconnect the connector (CN44) on the indoor

 

 

 

 

 

 

 

 

controller board.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Liquid pipe thermistor (TH2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9. REMOVING THE HEAT EXCHANGER

Photo 13

 

 

 

 

 

 

(1)

Remove the front panel (Refer to step 2) and the corner

 

 

 

 

 

 

 

 

 

Electrical box cover (side)

 

panel at right lower side.

 

 

 

(2)

Remove the electrical box (Refer to step 4) and the nozzle

Heat exchanger

 

Electrical box cover (top)

 

Screw (side cover)

 

 

 

assembly (Refer to step 5).

 

 

 

 

 

Water cover

Screw (top cover)

 

 

(3)

Remove the motor band.

 

 

 

 

 

 

 

 

 

 

 

 

(4)

Remove the pipe thermistors (Refer to step 8).

 

 

 

 

 

 

 

(5)

Disconnect the connector (CN60) on the indoor controller

 

 

 

 

 

 

 

 

board and the connector for ground wire. (See Photo 5)

 

 

 

 

 

 

 

(6)

Remove the screws fixing the left side of the heat

 

 

 

 

 

 

 

 

exchanger. (See Photo 9)

 

 

 

 

 

 

 

(7)

Remove the heat exchanger.

 

 

 

 

 

 

 

 

 

 

 

Switch board cover

Screw

 

 

Nozzle assembly

Holder of

(side

 

 

cover)

 

 

 

 

 

 

IR wireless

 

 

 

 

 

 

 

 

controller board

 

 

 

 

 

 

 

 

10. REMOVING THE ROOM TEMPERATURE THERMISTOR

Photo 14

 

 

 

 

 

 

(1)

Remove the front panel (Refer to step 2).

 

 

 

 

 

 

 

Screw (side cover) Electrical box

(2)

Remove the electrical box cover.

Screw (top cover)

(3)

Remove the room temperature thermistor.

 

 

 

cover (top)

 

 

 

 

 

 

 

(4)

Disconnect the connector (CN20) on the indoor controller

 

 

 

 

 

Electrical box

 

board.

 

 

 

 

 

cover (side)

 

 

 

 

 

 

 

Room temp.

 

 

 

 

 

 

 

thermistor

 

 

 

 

 

 

 

(TH1)

 

 

 

 

 

 

 

Thermistor

 

 

 

 

 

 

 

holder

 

 

 

 

 

 

 

Screw

 

 

 

 

 

 

 

(side cover)

 

 

Nozzle assembly

Switch holder

Holder of

 

 

 

 

 

 

IR wireless

 

 

 

 

 

 

controller board

 

 

 

 

 

 

 

 

 

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Mitsumi electronic PKA-A12HA4, PKA-A18HA4 Operation Procedure, Photos, Removing The Liquid Pipe Thermistor And