Mitsubishi PUY-A12NHA6 - Page 117

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9. Removing linear expansion valve
 (1)Removetheservicepanel.(SeePhoto1)
 (2)Removethetoppanel.(SeePhoto1)
 (3)Removethefrontpanel.(SeePhoto1)
 (4)Removetheconduitcoverandcordcover.(SeePhoto2)
 (5)Removethebackpanel.(SeePhoto1)
 (6)Removetheelectricalpartsbox.(SeePhoto5)
 (7)Removethelinearexpansionvalvecoil.(SeePhoto10)
 (8)Recoverrefrigerant.
 (9)Removetheweldedpartoflinearexpansionvalve.
Note 1: Recover refrigerant without spreading it in the air.
Note 2: The welded part can be removed easily by
removing the back panel.
Note 3:
When installing the linear expansion valve, cover
it with a wet cloth to prevent it from heating (250˚F
or more), then braze the pipes so that the inside of
pipes are not oxidized.
8. Removing the 4-way valve
 (1)Removetheservicepanel.(SeePhoto1)
 (2)Removethetoppanel.(SeePhoto1)
 (3)Removethefrontpanel.(SeePhoto1)
 (4)Removetheconduitcoverandcordcover.(SeePhoto2)
 (5)Removethebackpanel.(SeePhoto1)
 (6)Removetheelectricalpartsbox.(SeePhoto5)
 (7)Removethe4-wayvalvecoil(SeePhoto8)
 (8)Recoverrefrigerant.
 (9)Removetheweldedpartoffour-wayvalve.
Note 1: Recover 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 four-way valve, cover it with
a wet cloth to prevent it from heating (250˚F or
more), then braze the pipes so that the inside of
pipes are not oxidized.
Photo 10
Photo 11
10. Removing the high pressure switch (63H)
 (1)Removetheservicepanel.(SeePhoto1)
 (2)Removethetoppanel.(SeePhoto1)
 (3)Removethefrontpanel.(SeePhoto1)
 (4)Removetheconduitcoverandcordcover.(SeePhoto2)
 (5)Removethebackpanel.(SeePhoto1)
 (6)Removetheelectricalpartsbox.(SeePhoto5)
 (7)Pullouttheleadwireofhighpressureswitch.
 (8)Recoverrefrigerant.
 (9)Removetheweldedpartofhighpressureswitch.
Note 1: Recover refrigerant without spreading it in the air.
Note 2: The welded part can be removed easily by
removing the back panel.
Note 3: When installing the high pressure switch, cover it
with a wet cloth to prevent it from heating (210˚F
or more), then braze the pipes so that the inside
of pipes are not oxidized.
Reactorfixingscrews
Highpressure
switch(63H)
Reactorfixingscrews
Reactor
(ACL)
Electrical
partsbox
11. Removing the reactor (ACL)
 (1)Removetheservicepanel.(SeePhoto1)
 (2)Removethetoppanel.(SeePhoto1)
 (3)Removethefrontpanel.(SeePhoto1)
 (4)Removethebackpanel.(SeePhoto1)
 (5)Remove3reactorfixingscrews(4×20)andremovethe
reactor.

Note:Thereactorisattachedtotherearoftheelectricalpartsbox.
Photo 12
Chargeplug
4-wayvalve
Linearexpansion
valvecoil(LEV-A)
Linearexpansionvalve
4-wayvalvecoil
fixingscrew
4-wayvalvecoil
(21S4)
OPERATING PROCEDURE PHOTOS
OCH577A