Removing Electronic Expansion Valve Coil; Removing Solenoid Valve Coil (Sva And Svc) - Hitachi RAS-2-HVNP Service Manual

10. Servicing
10.3.3.11 Removing electronic expansion valve coil
1 Remove the service cover, the bottom service cover and the rear cover following
ving bottom service cover and rear
2 Disconnect the CN5A connector on the control PCB1 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.
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.
D A N G E R
DO NOT touch electrical components while the LED201 (Red) or LED1 (Red) are ON to avoid electrical shock. Wait
until the LEDs turn off.
10.3.3.12 Removing solenoid valve coil (SVA and SVC)
1 Remove the service cover following
2 Open the P-mounting plate. Check to ensure the LED201 (Red) of the inverter PCB (PCB2) is OFF.
3 Unplug the connector PCN7 (SVA) and PCN14 (SVC) on O.U. PCB1.
4 Remove the fixing screw, and remove the solenoid valve coil
(SVA and SVC) upward.
5 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 LED201 (Red) or LED1 (Red) are ON to avoid electrical shock. Wait
until the LEDs turn off.
369
SMGB0079 rev.0 - 01/2013
cover.
Removing service cover.
Removing service cover
Expansion valve coil Release lock
Solenoid valve coil screw
Solenoid valve
coil (SVA)
and Remo-
Hold the coil of
the expansion
valve and pull
out upward
Solenoid valve
coil (SVC)
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