Hitachi RAS-(4-6)HVRNS2E - Removing Electronic Expansion Valve and Solenoid Valve

10 Servicing
432
SMGB0064 rev.0 - 08/2011
8 Reassemble the parts in the reverse order of removing procedures.
Details for Removing Band
1
2
3
4
5
6
7
8
1
2
3
4
5
6
A
3
7
8
1
6
2
1
1. Band (RAS-8HRNSE Only)
2. Removing brazing part (Outdoor heat
exchange).
3. Reversing Valve.
4. Removing Brazing part (Gas stop val-
ve).
5. Removing Brazing part (Compressor
suction pipe).
6. Removing Brazing part (Compressor
discharge pipe).
7. Valve stay.
8. Screw.
1. Screw.
2. P.
3. Silicon Plate.
4. Electrical box.
5. Reversing Valve.
6. Band.
7. Pipe.
8. F-Tape.
1. Cover by wet cloth.
2. Reversing valve.

Removing Electronic expansion Valve and Solenoid Valve
1 Remove the service cover and rear cover following the Removing service cover, see on page 420 and the Removing the
bottom service cover and rear cover, see on page 421.
2 Collect the refrigerant from the check joint following the Removing the compressor, see on page 425.
3 Remove the coil following the Removing reversing valve coil, see on page 429.
4 Remove the brazing as show in the gure below.
• Electronic Expansion Valve (MV1): 2 brazing parts.
• Solenoid Valve (SVA): 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 ame.
5 Reassemble the parts in the reserve order of removing procedures.
1
2
1
2
1
2
1. Solenoid Valve.
2. Expansion Valve.
1. Expansion valve (MV1)
2. Removing brazing part
1. Solenoid valve (SVA)
2. Removing brazing part