109
8. Removing the 4-way valve coil (21S4), LEV coil (LEV (A),
LEV (B), (LEV (C)) and lead wire for high pressure switch.
(1) Remove the electrical parts box. (See Photo 4 or 5)
(2) Loosen the clamp for the lead wire on separator.
[Removing the lead wire for high pressure switch]
(3) Disconnect the lead wire from the high pressure switch.
[Removing the 4-way valve coil]
(3) Remove the 4-way valve coil fixing screw (1 for front/ M5)
to remove the 4-way valve coil.
(4) Slide the 4-way valve coil forward 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.
Note: LEV-C is for ZM140 model only.
Photo 15 (ZM100/125 model)
9. Removing the 4-way valve, LEV (LEV (A), LEV (B)), (LEV (C))
and high pressure switch.
(1) Remove the electrical parts box. (See Photo 4 or 5)
(2) Remove the cover panel (front) fixing screws (1 for front
and 1 for side/ 5 x 12), then slide the cover panel (front)
upward to remove it.
(The cover panel (front) is fixed to the cover panel (rear)
with hooks on the rear side.) (See Photo 1)
(3) Remove the cover panel (rear) fixing screw (2 for right
side and 2 for rear/ 5 x 12), the slide the cover panel (rear)
upward to remove it.
(The cover panel (rear) is fixed to the side plate with hooks
on the rear side.) (See Photo 1)
(4) Remove the valve bed fixing screws (3 for front/ 5 x 12) and
the ball valve and stop valve fixing screws (4 for front/ 5 x
16) to remove the valve bed.
(5) Remove the side panel (R) fixing screws (3 for rear/ 5 x 12),
then slide the side panel (R) upward to remove it.
(The side panel (R) is fixed to the side plate with hooks on
the rear side.)
(6) Recover refrigerant.
[Removing the 4-way valve]
(7) Remove the 4-way valve coil. (See Photo 15 or 16)
(8) Remove the welded part of 4-way valve (4 positions) to
remove the 4-way valve.
[Removing the LEV]
(7) Remove the LEV coil. (See Photo 15 or 16)
(8) Remove the welded part of LEV (2 positions) to remove
the LEV.
[Removing the high pressure switch]
(7) Disconnect the lead wire from the high pressure switch.
(8) Remove the welded part of high pressure switch
(1 position) to remove the high pressure switch.
Note 1: Recover refrigerant without spreading it in the air.
Note 2: The welded part can be removed easily by
removing the side panel (R).
Note 3: When installing the following parts, cover it with
a wet cloth to prevent it from heating as the
temperature 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
Note 4: LEV-C is for ZM140 model only.
Photo 16 (ZM140 model)
Power
receiver
4-way valve
coil (21S4)
Power
receiver
OPERATING PROCEDURE
PHOTOS
Compressor
LEV coil
(LEV C)
LEV coil
(LEV B)
LEV coil
(LEV A)
High pressure
switch
4-way valve
coil (21S4)
LEV coil
(LEV B)
LEV coil
(LEV A)
High pressure
switch
Compressor
OCH654