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OPERATING PROCEDURE
PHOTOS/FIGURES
9. Removing bypass valve coil (SV1) and bypass valve
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the electrical parts box. (See Photo 5)
(4) Remove the cover panel (front). (Refer to procedure 8 (5))
(5) Remove the cover panel (rear). (Refer to procedure 8 (6))
(6) Remove the side panel (R). (Refer to procedure 8 (7))
(7) Remove the bypass valve coil fixing screw (M4 × 6).
(8) Remove the bypass valve coil by sliding the coil upward.
(9) Recover refrigerant.
(10) Remove the welded part of bypass valve.
Refer to the notes below.
Photo 11
Photo 12
10. Removing the high pressure switch (63H)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the electrical parts box. (See Photo 5)
(4) Remove the cover panel (front). (Refer to procedure 8 (5))
(5) Remove the cover panel (rear). (Refer to procedure 8 (6))
(6) Remove the side panel (R). (Refer to procedure 8 (7))
(7) Pull out the lead wire of high pressure switch.
(8) Recover refrigerant.
(9) Remove the welded part of high pressure switch.
Refer to the notes below.
11. Removing the low pressure sensor (63LS) and high
pressure sensor (63HS)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the electrical parts box. (See Photo 5)
(4) Remove the cover panel (front). (Refer to procedure 8 (5))
(5) Remove the cover panel (rear). (Refer to procedure 8 (6))
(6) Remove the side panel (R). (Refer to procedure 8 (7))
(7) Recover refrigerant.
(8) Remove the welded part of low pressure sensor and high
pressure sensor.
Refer to the notes below.
12. Removing linear expansion valve (LEV-A, LEV-B)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the electrical parts box. (See Photo 5)
(4) Remove the cover panel (front). (Refer to procedure 8 (5))
(5) Remove the cover panel (rear). (Refer to procedure 8 (6))
(6) Remove the side panel (R). (Refer to procedure 8 (7))
(7) Remove the linear expansion valve coil. (See Photo 12)
(8) Recover refrigerant.
(9) Remove the welded part of linear expansion valve.
Notes:
1.
Recover refrigerant without spreading it in the air.
2.
The welded part can be removed easily by removing the
right side panel.
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;
• Bypass valve (procedure 9), 120°C or more
• High pressure switch (procedure 10), 100°C or more
• Low pressure sensor and high pressure sensor
(procedure 11), 100°C or more
• Linear expansion valve (procedure 12), 100°C or more
13. Removing the reactor (DCL)
(1) Remove the service panel. (See Photo 1)
(2) Disconnect the lead wires from the reactor. (See Photo5)
(3) Disconnect the connectors of reactor on the bottom plate
of the electrical parts box. (See Photo13)
(4) Remove 4 screws on the bottom plate of the electrical
parts box. (See Photo 13)
(5) Remove the reactor.
Photo 13
High pressure
sensor (63HS)
High
pressure
switch (63H)
Low pressure
sensor
(63LS)
Bypass valve
coil fixing screw
Bypass valve
coil (SV1)
Bypass
valve
Low pressure
sensor (63LS)
Linear expansion
valve coil (LEV-A)
Linear
expansion valve
Linear expansion
valve coil (LEV-B)
Linear
expansion valve
Reactor
Screws
Screws
Connectors
of reactor
Bottom
plate of
electrical
parts box
Electrical parts box
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OCH675E