12
1.5.4 Removing the automatic air vent
1. Remove the automatic air vent “Z” by
unscrewing from the pump (see fig. 1.33);
1.5.5 Removing the pump
1.5.6 Removing the pressure gauge
1. Remove electrical connectione “A1”
(see fig. 1.34).
2. Disconnected the two nuts “A2” (see fig. 1.34);
3. Remove the pump.
1. Remove the pressure gauge cover by pulling
(see fig. 1.35);
2. Release coupling “A3” using a 14 mm open
ended spanner (see fig. 1.36);
3. Push the pressure gauge through the control
panel from the rear (see fig. 1.37).
1.5.3 Removing the safety valve
1. Remove the pump pressure switch
(see section 1.5.2)
2. Loosen nut “Y” disconnect the safety discharge
pipework from under the boiler (see fig. 1.32);
3. Remove the valve.
Y
Y
Fig. 1.32
A2
A2
A1
Fig. 1.34
Fig. 1.36
A3
Fig. 1.35
Fig. 1.33
Z
Fig. 1.37
