Worcester Gas boiler User Manual

FITTING THE DIVERTER VALVE AND CODE PLUG
6 720 645 222a (2012/05)
10
4 FITTING THE DIVERTER VALVE AND CODE PLUG
4.1 FITTING THE DIVERTER VALVE
MOTOR:
1. Remove the diverter blanking plate by pulling it
forwards to free it from its location.
Fig. 10 Removing Diverter valve blanking plate
1. To fit the diverter valve motor, push the motor into the
housing until the motor “clicks” securely into place,
ensuring that the actuator arm locates into the middle
of the “H” receptor on the motor.
2. Connect the plug of the diverter valve motor harness
into the socket on the diverter valve motor.
3. Slide the protective cover over the diverter valve
motor.
Fig. 11 Fitting Diverter motor and cover
4.2 ACCESS TO THE CODE PLUG
1. Referring to figure 12, unscrew the three screws in
the control panel.
2. Pull off the connections cover.
Fig. 12 Removing the connection cover
B Identify ST18, the code plug and connector.
Fig. 13 Connector locations
1.
6720645222-07.1Wo
3.
2.
1.
6720645222-08.1Wo
NOTICE: RESET THE CONTROL BOARD
Following changes to the wiring of ST15 and
ST8 the control board will need to be reset
to recognise the new connection.
To reset the control board:
B Hold the Service mode “Spanner” and the
Eco buttons down for at least five
seconds.
1.
1.
1.
2.
6720643895-40.1Wo
6720645222-09.1Wo
ST15
ST17
ST10
ST8
ST6
ST18

Worcester Gas boiler Specifications

General

Mounting	Wall-mounted
Brand	Worcester Bosch
Boiler Type	Gas
Fuel Type	Natural Gas
Type	Condensing
Efficiency	Up to 94%
Warranty	Up to 10 years
Heat Exchanger	Stainless Steel
Dimensions	Varies by model
Weight	Varies by model
Control Options	Digital, Smart Thermostats