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OPERATING PROCEDURE
11. Removing the 4-way valve coil (21S4), LEV coils (LEV-A,
LEV-B, LEV-C
), lead wire for high pressure switch.
(*1)
(1) Remove the electrical parts box. (See Photo 3-1)
[Removing the 4-way valve coil]
(2) Remove the 4-way valve coil fixing screw (1 for front/ M5)
to remove the 4-way valve coil.
(3) Slide the 4-way valve coil forward to remove it.
[Removing the LEV coil]
(2) Loosen the lead wires fixed to the pipes with bands.
(3) Slide the LEV coil upward to remove it.
[Removing the lead wire for high pressure switch]
(2) Disconnect the lead wire from the high pressure switch.
Note1: For SHWM model, please see Photo 12.
*
For SHWM model only
1
12. Removing the 4-way valve, LEVs (LEV-A, LEV-B, LEV-
C
), high pressure switch and high pressure sensor.
(*1)
(1) Remove the service panel. (See Photo 1)
(2) Recover refrigerant.
(3) Remove the electrical parts box. (See Photo 3-1)
(4) Remove the valve bed fixing screws (3 for front/ 5 × 12)
and the stop valve fixing screws (4 for front/ 5 x 16) to
remove the valve bed.
(5) Remove the cover panel (front). (See Photo 3-1)
(6) Remove the cover panel (rear). (See Photo 3-1)
(7) Remove the side panel (R). (See Photo 1)
(8) Remove the comp felt (top). (See Photo 3-2)
(9) Remove the comp felt (body). (See Photo 3-2)
[Removing the 4-way valve]
(10) Remove the 4-way valve coil.
(11) Remove the welded part of 4-way valve (4 positions) to
remove the 4-way valve.
[Removing the LEV]
(10) Remove the LEV coil.
(11) Remove the rubber mount fixed with band in between the LEV
pipes.
(12) Remove the welded part of LEV (2 positions) to remove the LEV.
[Removing the pressure switch]
(10) Disconnect the lead wire from the pressure switch.
(11) Remove the rubber mount fixed with band in between the
pressure switch and pipe.
(12) Remove the welded part of pressure switch (1 position)
to remove the pressure switch.
[Removing the high pressure sensor]
(10) Remove the rubber parts attached to the high pressure
sensor and the fixing bands.
(11) Remove the welded part of high pressure sensor (1 posi-
tion) to remove the high pressure sensor.
Note 1: Recover refrigerant without spreading it in the air.
Note 2: When installing the following parts, cover it with
a wet cloth to prevent it from heating to the tem-
perature below, then braze the pipes so that the
inside of pipes are not oxidized;
• 4-way valve, 120°C or more
• LEV, 120°C or more
• High pressure switch, 100°C or more
• High pressure sensor, 100°C or more
*
For SHWM model only
1
OCH809A
PHOTOS/ FIGURES
Photo 11 (SWM model)
4-way valve coil fixing screw
High
pressure
switch
High pressure sensor
Valve bed
Photo 12 (SHWM model)
4-way valve coil
fixing screw
4-way valve
coil
High
pressure
switch
High
pressure
sensor
Valve bed
78
4-way
4-way valve
valve coil
LEV coil
(LEV-A)
LEV coil
(LEV-B)
LEV coil
(LEV-B)
4-way valve
LEV coil
LEV coil
LEV coil
(LEV-B)
(LEV-C)
(LEV-A)
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