Mitsubishi Electric PUZ-WZ50VAA Service Manual page 86

OPERATING PROCEDURE
7. Removing the 4-way valve coil with wiring of H.P. Switch,
LEV coil(LEV-A, LEV-B, LEV-C) and Thermal protector
(1) Remove the service panel. (See Photo 1-1)
[Removing the 4-way coil with wiring of H.P. Switch]
(2) Remove the 4-way valve coil fixing screw (1 for front/ M5) to
remove the 4-way valve coil. (See Photo 7-1)
(3) Slide the 4-way valve coil forward to remove it.
(4) Disconnect the wiring of H.P. SWITCH (63H and 63L).
(See Photo 7-1)
(5) Remove the two relay connectors (for thermal protector, for
the set of 4-way valve coil and two high pressure switches).
(See Photo 2-2, 7-1)
[Removing the LEV coil]
(2) Remove the band of LEV coil. (See Photo 7-2, 7-3)
(3-1) Remove the relay connector of LEV coil. (In case of LEV-A,
LEV-B) (See Photo 2-2)
(3-2) Remove the connector of LEV coil on the circuit board. (In
case of LEV-C)
[Removing the thermal protector]
(2) Remove the relay connector of thermal protector. (See Photo
7-1)
(3) Loosen the two clamps for the lead wire of the thermal pro-
tector. (See Photo 2-3)
(4) Remove the lid of the soundproof cover. *1 (See Photo 6-1)
(5) Remove the nut of terminal cover, then open the terminal
cover. (See Photo 7-4)
(6) Remove the thermal protector. (See Photo 7-5)
*1 When replacing the soundproof lid, fit the lid to the
wrapped cover without making a gap.
OCH816
PHOTOS/FIGURES
Photo 7-1
H.P. Switch
(63H and 63L)
Photo 7-2
Band of LEV
coil A
Band of LEV
coil B
Photo 7-4
Terminal cover
Photo 7-5
Thermal protector
86
4-way valve coil
fixing screw
Relay connector
(Thermal protector)
Photo 7-3
Band of LEV coil C
Nut of the terminal cover