Mitsubishi Electric PUD-SHWM100VAA, Руководство по обслуживанию

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75
OCH756
OPERATING PROCEDURE PHOTOS/ FIGURES
11. Removing the 4-way valve coil (21S4), LEV coil (LEV-A,
LEV-C
(*1)
), lead wire for high pressure switch and high
pressure sensor.
(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 right/ M5)
to remove the 4-way valve coil.
(3) Slide the 4-way valve coil rightward 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.
[Removing the lead wire for high pressure sensor]
(2) Loosen the lead wire fixed to the rubber tube with band.
Note1: For SHWM model, please see Photo 12.
*
1
For SHWM model only
Photo 11 (SWM model)
12. Removing the 4-way valve, LEV (LEV-A, LEV-C
(*1)
), high
pressure switch and high pressure sensor.
(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 side panel (R). (See Photo 1)
[Removing the 4-way valve]
(6) Remove the 4-way valve coil.
(7) Remove the welded part of 4-way valve (4 positions) to
remove the 4-way valve.
[Removing the LEV]
(6) Remove the LEV coil.
(7) Loosen the LEV fixed to the pipe with band and rubber mount.
(8) Remove the welded part of LEV (2 positions) to remove the LEV.
[Removing the pressure switch]
(6) Disconnect the lead wire from the pressure switch.
(7) Loosen the pressure switch fixed to the pipe with band
and rubber mount.
(8) Remove the welded part of pressure switch (1 position)
to remove the pressure switch.
[Removing the high pressure sensor]
(6) Loosen the lead wire fixed to the rubber tube with band.
(7) Loosen the high pressure sensor fixed to the pipe with
band, rubber mount and rubber tube.
(8) 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 as 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
*
1
For SHWM·model only
Photo 12 (SHWM model)
4-way valve coil fixing screw
4-way valve
Valve bed
High pressure sensor
High
pressure
switch
LEV
LEV coil
(LEV-A)
4-way
valve coil
LEV
4-way valve coil
fixing screw
Valve bed
High
pressure
sensor
High
pressure
switch
LEV coil
(LEV-A)
LEV coil
(LEV-C)
4-way valve
4-way valve
coil