Hitachi RAS-(3-6)HVNC1(E) - Page 395

10 Servicing
381
SMGB0087 rev.0 - 12/2013
10
10.4.14 Removing Electronic expansion Valve and Solenoid Valve
1 Remove the service cover, the bottom service cover and the rear cover following “10.4.1Removingservicecover” and
“10.4.4Removingthebottomservicecoverandrearcover”.
2 Recover the refrigerant from check joints according to “10.4.7Removingthecompressor”.
3 Remove the coils according to “10.4.10RemovingReversingvalvecoil”and “10.4.12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.
Electronic Expansion Valve (EVO)
Solenoid Valve (SVC)
Brazing Part
Brazing Part
Electronic expansion valve
Solenoid valve (SVC)
Brazing parts
Brazing parts
Solenoid Valve (SVA)
Brazing Part
Solenoid valve
(SVA)
Brazing parts
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.