10.11.2 Removing the solenoid valve coil (SVA, SVG)
1 Remove the
screw -A- from the solenoid valve coil with a Philips
screwdriver. If it is difficult to remove the screw, use an
adjustable wrench or spanner.
2 Remove the solenoid valve coil -B- from the solenoid valve -C-.
10.11.3 Removing the solenoid valve
1 Remove the front service cover as described in the procedure Removing the front service cover, see on page 292.
2 Close the following stop valves.
a Heat pump system: Close the high pressure gas stop valve and the liquid stop valve.
b Heat recovery system: Close the high pressure gas stop valve, the low pressure gas stop valve and the liquid stop
valve.
3 Collect the outdoor unit refrigerant from the low pressure check joint and the high pressure check joint. Make sure that
the pressure will not increase at this time.
N O T E
If the pressure increases, collect all the refrigerant in the refrigerant circuit.
4 Remove
the
solenoid valve coil as described in the procedure Removing the solenoid valve coil (SVA, SVG), see on
page 314.
5 Remove the welding from the following parts:
• SVA -A- : 2 weld points -B-.
• SVG -C-: 2 weld points per valve -D-.
A
B
C
D
A
B
C
D
RAS - (8-12) FSXN RAS - (14-18) FSXN
N O T E
• When welding, cover the solenoid valve with a wet cloth to avoid the heat.
• Take care not to burn the wiring connections and the piping insulation when welding.
6 To fit the solenoid valve, carry out this procedure in reverse order.
10 Servicing
314
SMGB0065 rev. 1 - 12/2010
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