11
Important! Before any component is removed, the boiler
must be drained of all water.
1.5.1 Removing the pump pressure switch
1.Remove the pump pressure switch electrical connections
“W” (F
IG
1.33);
2.Unscrew the pump pressure switch by
using
a spanner on
the nut;
3.Remove the pump pressure switch.
1.5 ACCESS TO THE WATER CIRCUIT
FIG. 1.30
FIG. 1.31
FIG. 1.32
FIG. 1.33
U
V
V
1.4.3 Removing the gas valve
Important! Before removing the gas valve, ensure the gas
supply is turned off.
1. Disconnect all the cables from the solenoid and
modureg;
2. Remove the spark generator (see previous section);
3. Release the nuts “U” (FIG. 1.30);
4. Remove the screws “V” from the bottom of the gas valve
(FIG. 1.31);
5. Remove the gas valve (FIG. 1.32).
W
U
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