10.1.5 Gas Valve; 10.1.6 3-Way Diverter Valve; 10.1.7 Replacing The Diverter Valve Motor; 10.1.8 Pump And Return Manifold - Worcester GREENSTAR 24 Installation, Commissioning And Servicing Instructions

Inspection/Maintenance

10.1.5 GAS VALVE

NOTICE: Aluminium washers:
▶ Always re-assemble with a new aluminium washers,
do not re-use the old washers.
▶ Disconnect electrical connectors.
▶ Remove gas connecting pipe.
▶ Undo two screws, slide gas valve and retaining plate upwards and off
the screws.
2.
Fig. 76 Gas valve

10.1.6 3-WAY DIVERTER VALVE

▶ Undo three clips.
▶ Remove pipe [2] completely.
▶ Lift 3-way diverter valve upwards to remove.
▶ When refitting ensure that the clips go in correctly.
3
1
2
Fig. 77 Diverter valve
[1, 2, 3]Pipes
For easy assembly of 3-way diverter valve, fit pipe 1 first,
then pipe 3 and then refit pipe 2.
44
1.
3.
6720800945-09.1Wo

10.1.7 REPLACING THE DIVERTER VALVE MOTOR

1. Remove the two screws securing the motor to the diverter valve
body.
2. Rock the motor in the direction of the arrow to disengage the motor
actuator socket from the ball end of the valve actuator, refer to figure
78 inset below.
3. Remove the motor.
1.
2.
3.
2.
Fig. 78 Disconnect DV motor
When re-assembling the diverter valve motor to the diverter valve body:
▶ Ensure that the socket on the motor actuator is aligned as shown in
figure 78 inset.
▶ Insert the actuator at a slight angle into the valve body and engage the
socket onto the ball of the valve actuator.

10.1.8 PUMP AND RETURN MANIFOLD

▶ Disconnect PRV speechify connector.
▶ Disconnect the mains plug and earth to the pump.
▶ Undo pipe union at bottom and top of the pump and lift the pump
upwards to remove.
▶ Remove clip on rear connection of return manifold.
▶ Undo CH return pipe union.
▶ Remove the pressure gauge from the fascia.
▶ Remove two fixing screws and draw return manifold forwards to
remove.
Fig. 79 Pump and manifold return
6720800945-11.1Wo
6 720 811 922 (2014/07)