Hitachi RAS-(4-12)HNP(1)(E) - Page 408

10 Servicing
394
SMGB0087 rev.0 - 12/2013
10.5.14 Removing Electronic expansion Valve and Solenoid Valve
1 Remove the service cover, the bottom service cover and the
rear cover following “10.5.1 Removing service cover” and
“10.5.4Removingthebottomservicecoverandrearcover”.
2 Recover the refrigerant from check joints according to “10.5.7
Removingthecompressor”.
3 Remove the coils according to “10.5.10Removingreversing
valve coil” and “10.5.12 Removing solenoid valve coil (SVA
andSVC)”.
4 Remove the brazed parts as shown in the gures.
- Electronic Expansion Valve (EVO) Brazed Parts: 2
- Solenoid Valve (SVA) Brazed Parts: 2
- Solenoid Valve (SVC) Brazed Parts: 2
a. Remove the electronic expansion valve and the solenoid
valve with cooling the valve bodies by wet cloth.
b. Perform the brazing work with attention not to burn the
electrical wirings and the piping insulations.
5 When reassembling after replacing the valves, perform in the
reverse procedure of removing.
N O T E
Runtheleadwirestobelocatedtotheoriginalposition,and
xthembytheplasticband.
Electronic
expansion valve
Solenoid valve
(SVA)
Brazing parts
Brazing parts
Solenoid valve
(SVC)
Brazing parts
Q view