93
OPERATING PROCEDURE
PHOTOS
Photo 10
Photo 11
10. Removing the 4-way solenoid valve
(1) Remove
• Service panel.
• 3 cover panel fixing screws (5
o
10).
• Cover panel (see photo 6).
• 4-way solenoid valve coil (see photo 8, 9).
• 2 valve bed support fixing screws (5
o
10), then valve
bedsupport (see photo 9).
• 4 valve bed fixing screws (5
o
10), 4 stop valve fixing screws
(5
o
16), then valve bed (see photo 15).
(2) Collect the refrigerant.
(3) Remove 4-way solenoid valve together with the pipes from 3
welded points shown in the photo 10.
(4) Separate 4 welded pipes from the 4-way solenoid valve.
Note 1: Collect the refrigerant without releasing it in the air.
Note 2: The welded points can be accessed easily by removing
the right side panel.
Note 3: When installing the 4-way solenoid valve, cover it
with a wet cloth to prevent it from heating (120
;
;
or more), then braze the pipe (non-oxidizing braze).
11. Removing the linear expansion valve
(1) Remove
• Service panel.
• 3 cover panel fixing screws (5
o
10).
• Cover panel (see photo 6).
• Linear expansion valve coil (see photo 11).
• 2 valve bed support fixing screws (5
o
10), then valve bed
support (see photo 9).
• 4 valve bed fixing screws (5
o
10), 4 stop valve fixing screws
(5
o
16), then valve bed (see photo 15).
(2) Collect the refrigerant.
(3) Remove the linear expansion valve from 2 welded points.
Note 1: Collect the refrigerant without releasing it in the air.
Note 2: The welded points can be accessed easily by removing
the right side panel.
Note 3: When installing the linear expansion valve, cover it
with a wet cloth to prevent it from heating (120
;
;
or
more), then braze the pipe (non-oxidizing braze).
Bypass solenoid
valve
Thermistor
<Discharge>
3 welded points of the
4-way solenoid valve
4-way solenoid valve
<Side panel (right) is removed>
Linear expansion
valve
Linear expansion
valve coil
OC338B-4.qxp 06.7.11 10:56 AM Page 93
