Hitachi RAS-4-HNPE - Removing Electronic Expansion Valve Coil; Removing Solenoid Valve Coil (SVA and SVC)

10. Servicing
355
SMGB0079 rev.0 - 01/2013
10
10.3.2.11 Removing electronic expansion valve coil
1 Remove the service cover, the bottom service cover and the rear cover following Removing service cover and Remo-
ving bottom service cover and rear cover.
D A N G E R
DONOTtouchelectricalcomponentswhiletheLED1(Red)isONtoavoid electricalshock.WaituntiltheLED
turnsoff.
2 Disconnect the CN5A connector on the control PCB of
the electrical box.
3 Hold the coil of the expansion valve and pull out
upward.
It is easier to remove the expansion valve coil if it is
rotated while pulling it upward.
Expansion Valve Coil Release Lock
Pull the expansion
valve coil upward
with holding.
Hold the coil of the
expansion valve and
pull out upward
Expansion valve coil Release lock
4 When reassembling after replacing the expansion valve coil, perform the procedure in the reverse way of removing.
The expansion valve coil is equipped with a lock mechanism. After attaching the expansion valve coil, rotate it until the
sound of locking is heard.
N O T E
Fixthewiresbyplasticbandstotheoriginalposition.
10.3.2.12 Removing solenoid valve coil (SVA and SVC)
1 Remove the service cover and the upper cover following Re-
moving service cover and Removing upper cover.
2 Unplug the connector PCN7 (SVA) and PCN14 (SVC) on O.U.
PCB1.
3 Remove the xing screw, and remove the solenoid valve coils
(SVA and SVC) upward.
4 When reassembling after replacing the solenoid valve coil, per-
form the procedure in the reverse way of removing.
N O T E
Fixthewiresbyplasticbandstotheoriginalposition.
D A N G E R
DO NOT touchelectricalcomponents while theLED1 (Red)
isONtoavoidelectricalshock.WaituntiltheLEDturnsoff.
Solenoid Valve Coil (SVC)
Fixing Screws for Solenoid Valve Coil
Solenoid Valve Coil (SVA) (Only for 4 to 7HP)
Solenoid valve coil (SVC)
Solenoid valve coil screw
Solenoid valve coil (SVA)