Photo - Mitsubishi Electric PUHZ-SHW80VAA Service Manual

OPERATING PROCEDURE
9. Removing the thermistor <Discharge> (TH4), thermistor
<Suction> (TH32) and thermistor <Comp. Surface> (TH33)
(*1)
(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 comp case (top). (See Photo 3-2)
(5) Remove the comp case (front). (See Photo 3-2)
(6) Disconnect the connectors TH4 (WH), TH32 (BK)
TH33 (YE) on the controller circuit board in the electrical
parts box. (See Photo 3-1)
(7) Loosen the fasteners, wire clip and cable straps for the
lead wire in the electrical parts box.
(8) Loosen the bands for the lead wire.
(9) Loosen the clamps for the lead wire in the separator.
(10) Loosen the edge cover for the lead wire on the comp
case (side).
(11) Pull out the thermistor <Discharge> (TH4) from thermistor holder.
(12) Pull out the thermistor <Comp. Surface> (TH33) from
thermistor holder.
(13) Loosen the lead wires fixed to the pipes with bands.*
(14) Pull out the thermistor <Suction> (TH32) from thermistor clip.*
* For SHW·model only
1
10. Removing the 4-way valve coil (21S4), LEV coil (LEV-A,
LEV-B, LEV-C ), lead wire for high pressure switch, low
(*1)
pressure switch, and high pressure sensor.
(1) Remove the electrical parts box. (See Photo 3-1)
(2) Loosen the bands for the lead wire.
[Removing the 4-way valve coil]
(3) Remove the 4-way valve coil fixing screw (1 for right/ M5)
to remove the 4-way valve coil.
(4) Slide the 4-way valve coil rightward to remove it.
[Removing the LEV coil]
(3) Loosen the lead wires fixed to the pipes with bands.
(4) Slide the LEV coil upward to remove it.
[Removing the lead wire for high pressure switch]
(3) Disconnect the lead wire from the high pressure switch.
[Removing the lead wire for low pressure switch]
(3) Loosen the lead wires fixed to the pipes with band.
(4) Disconnect the lead wire from the low pressure switch.
[Removing the lead wire for high pressure sensor]
(3) Disconnect the lead wire from the high pressure sensor.
Note1 : For SHW model, please see Photo 11.
* For SHW·model only
1
OCH651

Photo 9-1

Thermistor <Comp.
Surface> (TH33)
* and
( 1)
1
1 Photo 9-2
Photo 10 (SW100 model)
4-way valve coil fixing screw
High pressure sensor
High
pressure
switch
Valve bed
68
PHOTOS
Thermistor
<Discharge> (TH4)
Comp case (side)
Thermistor *
<Suction> (TH32)
4-way
4-way valve
valve coil
LEV
Low pressure switch
1
LEV coil
(LEV-B)
LEV coil
(LEV-A)