Mitsubishi Electric PUZ-SWM60VAA Service Manual page 77

OPERATING PROCEDURE
9. Removing the thermistor <Liquid> (TH3)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the cover panel (front). (See Photo 3-1)
(4) Remove the cover panel (rear) fixing screws (2 for rear
and 2 for right/ 5 × 12) to remove the cover panel (rear).
(See Photo 3-1)
(5) Remove the valve bed fixing screws (2 for front/ 5 × 12)
on the side panel (R). (See Photo 3-1)
(6) Remove the electrical parts box fixing screws (2 for front/
5 × 12). (See Photo 3-1)
(7) Remove the sensor holder. (See Photo 8)
(8) Remove the side panel (R) fixing screws (3 for rear/ 5 ×
12) to remove the side panel (R). (See Photo 1)
(9) Disconnect the connector TH3 (WH) on the controller cir-
cuit board in the electrical parts box. (See Photo 3-1)
(10) Loosen the fasteners for the lead wire in the electrical
parts box.
(11) Loosen the clamps for the lead wire on the rear of electri-
cal parts box and on the coil cover.
(12) Pull out the thermistor <Liquid> (TH3) from thermistor
clip.
Note 1: The wiring of thermistor <Liquid>(TH3), thermistor
<2-phase pipe> (TH6) and thermistor <Ambient>
(TH7) are fixed with a band.
When replacing the thermistor, cut the band.
10. Removing the thermistor <Discharge> (TH4), thermistor
<Suction> (TH32), thermistor <Comp. Surface> (TH33) and
thermal protector (connected intermediately to 63H)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the cover panel (front). (See Photo 3-1)
(4) Disconnect the connectors TH4 (WH), TH32 (BK) and
TH33 (YE) from the controller circuit board in the electri-
cal parts box. (See Photo 3-1)
Disconnect the relay connector (WH) from the 63H brown
cable.
(5) Loosen the fasteners, wire clip and cable straps for the
lead wire in the electrical parts box.
(6) Cut the bands bundling the lead wires.
(7) Loosen the clamps for the lead wire on the separator.
(8) Pull out the thermal protector from comp thermistor hold-
er.
(9) Pull out the thermistor <Discharge> (TH4) from thermistor
holder.
(10) Pull out the thermistor <Comp. Surface> (TH33) from
thermistor holder.
(11) Cut the bands fixing the lead wires fixed to the pipes.
(12) Detach the thermistor <Suction> (TH32) and its clip from
the pipe.
OCH809A
PHOTOS/ FIGURES
Photo 9
Coil cover
Photo 10-1
Photo 10-2
Thermistor
<Suction> (TH32)
77
Thermistor <Liquid> (TH3)
Thermistor <Comp.Surface> (TH33)
Thermistor <Discharge> (TH4)
Thermal protector(connected
intermediately to 63H)