Service manual

89
OPERATING PROCEDURE
PHOTOS
10. Removing the bypass valve
(1) Remove the service panel. (See figure 1.)
(2) Remove the top panel. (See figure 1.)
(3) Remove the electrical parts box. (See photo 3.)
(4) Remove 3 right side panel fixing screws (5 ✕ 10) in the
rear of the unit and remove the right side panel.
(5) Remove the bypass valve solenoid coil. (See photo 7.).
(6) Collect the refrigerant.
(7) Remove the welded part of bypass valve.
Note 1: Collect refrigerant without spreading it in the air.
Note 2: The welded part can be removed easily by
removing the right side panel.
12. Removing the reactor (ACL)
(1) Remove the service panel. (See figure 1.)
(2) Remove the top panel. (See figure 1.)
(3) Remove the electrical parts box. (See photo 3.)
(4) Remove 3 reactor fixing screws (4 ✕ 16) and remove the
reactor.
w The reactor is attached to the rear of the electrical parts box.
Photo 9
Reactor fixing screw
11. Removing the high pressure switch (63H)
(1) Remove the service panel. (See figure 1.)
(2) Remove the top panel. (See figure 1.)
(3) Remove the electrical parts box. (See photo 3.)
(4) Remove 3 right side panel fixing screws (5 ✕ 10) in the
rear of the unit and remove the right side panel.
(5) Pull out the lead wire of high pressure switch.
(6) Collect the refrigerant.
(7) Remove the welded part of high pressure switch.
Note 1: Collect refrigerant without spreading it in the air.
Note 2: The welded part can be removed easily by
removing the right side panel.
Note 3: When installing the high pressure switch, cover it
with a wet cloth to prevent it from heating (100°C
or more), then braze the pipes so that the inside
of pipes are not oxidized.
Linear expansion
valve coil (LEV B)
Linear expansion
valve coil (LEV A)
Linear
expansion
valve
Bypass
valve
Four-way
valve
Lead wire of
high pressure switch
High pressure switch (63H)
Reactor fixing screws
Reactor
(ACL)
Photo 10
Photo 11
Linear
expansion
valve
Electrical parts box
Solenoid valve coil
<Bypass valve>
(SV)
Solenoid valve coil
<Four-way valve>
(21S4)
OC294-D-3.qxp 05.3.9 11:04 AM Page 89