Mitsubishi Electric Mr.Slim PUZ-HA42NKA Service Manual page 94

OPERATING PROCEDURE
7. Removing the 4-way valve coil (21S4), and linear expansion
valve coil (LEV-A, LEV-B, LEV-C)
[Removing the 4-way valve coil]
[Removing the linear expansion valve coil]
8. Removing the 4-way valve
Note : When installing the 4-way valve, cover it with a wet
cloth to prevent it from heating (120°C [250°F] or
more), then braze the pipes so that the inside of
pipes are not oxidized.
9. Removing linear expansion valve
Note : When installing the linear expansion valve, cover it
with a wet cloth to prevent it from heating (120°C
[250°F] or more), then braze the pipes so that the
inside of pipes are not oxidized.
OCH567
PHOTOS
Photo 10
10. Removing the high pressure switch (63H), the
low pressure switch (63L) and the pressure
sensor (63HS)
Note : When installing the high pressure switch,
cover it with a wet cloth to prevent it from
heating (100°C [250°F] or more), then
braze the pipes so that the inside of pipes
are not oxidized.