Hitachi RAS-3HVRNS - Removing Electronic Expansion Valve and Solenoid Valve

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-8HRNME Only)
2. Removing brazing part (Outdoor heat
exchange).
3. Reversing Valve.
4. Removing Brazing part (Gas stop
valve).
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 414 and the Removing
the bottom service cover and rear cover, see on page 415
.
2 Collect the refrigerant from the check joint following the Removing the compressor, see on page 419
.
3 Remove the coil following the Removing reversing valve coil, see on page 423.
4 Remove the brazing as show in the figure 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 flame.
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
10 Servicing
426
SMGB0060 rev. 1- 12/2010