EasyManua.ls Logo

Hitachi RAS-3HVRNS - Page 384

Hitachi RAS-3HVRNS
482 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
1. Brazing.
2. Reversing valve.
3. Mounting plate.
4. Screw.
5. Compressor.
6. Cover by wet cloth.
¿ Removing expansion valve
1 Remove the service cover and rear service panel according to the section Removing service cover, see on page 366
and Removing the lower part of service panel and rear panel, see on page 367.
2 Collect the refrigerant from the check joint according to the section Removing the compressor, see on page 369.
3 Remove the coils according to the section Removing the coils for reversing and solenoid valve (SVA1, SVA2 and
SVF), see on page 374.
4 Remove the brazing as shown in the figure.
Electronic Expansion Valve (EV0): 2 brazing parts.
Perform the brazing to remove and reassemble the
electronic expansion valve by cooling with wet cloth.
Protect the connecting wires and pipe insulation from
brazing flame.
1. Expansion valve (EV0).
2. Brazing part.
5 Reassemble the parts in the reverse order of removing
procedures.
¿ Removing solenoid valve
1 Remove the service cover and the rear service panel according to the sections Removing service cover, see on page
366 and Removing the lower part of service panel and rear panel, see on page 367 described in this chapter .
2 Collect the refrigerant from the check joint according to the section Removing the compressor, see on page 369 in this
chapter.
3 Remove the solenoid valve coil according to the section Removing expansion valve, see on page 376 in this chapter.
4 Remove the brazing and flare nuts. Using a blowtorch and previously cooling the pipe side with wet cloth in order to
avoid brazing material entering the reversing valve.
5 Perform the brazing to remove and reassemble the solenoid valve.
6 Protect the connecting wires and pipe insulation from the brazing flame.
7 Remove the flare nuts with two spanners to avoid twisting.
8 Reassemble the parts in the reverse order of removing order of removing procedures.
1
1
1
1
2
2
3
4
4
5
6
1
2
10 Servicing
376
SMGB0060 rev. 1- 12/2010

Table of Contents

Related product manuals