144
OPERATING PROCEDURE
PHOTOS
9. Removing bypass valve coil (SV1, SV2) and bypass valve
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the cover panel (front). (Refer to procedure 8(5))
(4) Remove the cover panel (rear) (Refer to procedure 8(6))
(5) Remove the side panel (R). (Refer to procedure 8 (7))
(6) Remove the bypass valve coil fixing screw (M4 × 6).
(7) Remove the bypass valve coil by sliding the coil upward.
(8) Disconnect the connector SV1 (gray) or SV2 (blue) on the
multi controller circuit board in the electrical parts box.
(9) Remove the electrical parts box. (See photo 5)
(10)
Recover refrigerant.
(11)
Remove the welded part of bypass valve.
Refer to the notes below.
Photo 11
High pressure
sensor (63HS)
High pressure
switch (63H)
Low pressure
sensor (63LS)
Bypass valve
coil fixing screw
Electronic expansion
valve coil (LEV-A)
Bypass valve
coil (SV1)
Bypass valve
(SV1)
Electronic
expansion
valve
10. Removing the high pressure switch (63H) and high pres-
sure sensor (63HS)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the cover panel (front). (Refer to procedure 8(5))
(4) Remove the cover panel (rear) (Refer to procedure 8(6))
(5) Remove the side panel (R). (Refer to procedure 8 (7))
(6) Pull out the lead wire of high pressure switch and high pres-
sure sensor.
(7) Remove the electrical parts box. (See Photo 5)
(8) Recover refrigerant.
(9) Remove the welded part of high pressure switch and high
pressure sensor.
Refer to the notes below.
11. Removing the low pressure sensor (63LS)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove the cover panel (front). (Refer to procedure 8(5))
(4) Remove the cover panel (rear) (Refer to procedure 8(6))
(5) Remove the side panel (R). (Refer to procedure 8 (7))
(6) Disconnect the connector 63LS (blue) on the multi controller
circuit board in the electrical parts box.
(7) Remove the electrical parts box. (See Photo 5)
(8) Recover refrigerant.
(9) Remove the welded part of low pressure sensor.
Refer to the notes below.
12. Removing electronic 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 cover panel (front). (Refer to procedure 8(5))
(4) Remove the cover panel (rear) (Refer to procedure 8(6))
(5) Remove the side panel (R). (Refer to procedure 8 (7))
(6)
Remove the electrical expansion valve coil. (See Photo 11,12)
(7) Remove the electrical parts box. (See Photo 5)
(8) Recover refrigerant.
(9) Remove the welded part of electrical expansion valve.
Refer to the notes on the right.
Photo 12
Low pressure
sensor (63LS)
Electronic expan-
sion valve coil
(LEV-A)
Electronic expan-
sion valve
Electronic expansion
valve coil (LEV-B)
Bypass valve
coil (SV2)
Bypass valve
(SV2)
Bypass valve
coil fixing screw
Notes:
1. Recover refrigerant without spreading it in the air.
2. The welded part can be removed easily by removing
the side panel (R).
3. When installing the following parts, cover it with a
wet cloth to prevent it from heating as the tempera-
ture below, then braze the pipes so that the inside of
pipes are not oxidized;
•
Bypass valve (procedure 9), 248-F [120°C] or more
•
High pressure switch and high pressure sensor
(procedure 10), 212-F [100°C] or more
•
Low pressure sensor (procedure 11), 212-F [100°C]
or more
•
LEV (procedure 12), 248-F [120°C] or more
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