Mitsubishi Electric PUHZ-RP35VHA Service Manual page 114

OPERATING PROCEDURE
10. Removing solenoid valve coil <Bypass valve> (SV) and
bypass valve
(1) Remove the service panel. (See figure 1.)
(2) Remove the top panel. (See figure 1.)
(3) Remove 3 right side panel fixing screws (5
rear of the unit and remove the right side panel.
(4) Remove the bypass valve solenoid coil fixing screw
(M4 6).
(5) Remove the solenoid valve coil <Bypass valve> by
sliding the coil upward.
(6) Disconnect the connector SV2 (blue) on the controller
circuit board in the electrical parts box.
(7) Collect the refrigerant.
(8) 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.
11. Removing the high pressure switch (63H) and
low pressure switch (63L)
(1) Remove the service panel. (See figure 1.)
(2) Remove the top panel. (See figure 1.)
(3) Remove 3 right side panel fixing screws (5
rear of the unit and remove the right side panel.
(4) Pull out the lead wire of high pressure switch and low
pressure switch.
(5) Collect the refrigerant.
(6) Remove the welded part of high pressure switch and low
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.
12. Removing the reactor (DCL) and capacitor (CE)
(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.)
<Removing the reactor>
(4) Remove 4 reactor fixing screws (4
reactor.
<Removing the capacitor>
(4) Remove 2 capacitor band fixing screws (4
remove the capacitor.
w The reactor and capacitor is attached to the rear of the
electrical parts box.
Photo 9
10) in the
Photo 10
High pressure switch (63H)
10) in the
Photo 11
10) and remove the
10) and
Reactor
fixing
screws
114
PHOTOS
Solenoid valve coil
<Bypass valve>
fixing screw
Four-way
valve
Reactor
(DCL)
Capacitor (CE)
Solenoid
valve coil
<Bypass valve>
(SV)
Bypass
valve
Four-way
valve
Low pressure
switch (63L)
Electrical parts box
Reactor
fixing
screws
Capacitor band
fixing screws