34
221873B
14 Replacement of Parts
Diagram 14.8
6982
CONTROL
BOARD
IGNITION LEADS
SUPPORT
POSTS (4)
Diagram 14.9
SOCKET
HEAD
CAPSCREW
(8)
GAS SUPPLY
PIPE)
GAS
CONTROL
VALVE
6986
MANIFOLD
MULTI PIN
CONNECTOR
14.10 Pump
Before starting refer to Section 11.
Remove the two screws securing the controls facia, see diagram
9.1.
Hinge the assembly open.
Release the water pressure and drain the central heating circuit
of the boiler, refer to Section 11.3 and 11.6.
Remove the electrical plug at the pump, see diagram 14.10.
Remove the four cap head screws, see diagram 14.10.
Make sure that the pump is fitted in the correct orientation.
The pump adjuster on the new pump should be set to that of the
original, refer also to Section 4.4.
The flow rate should be controlled by means of a valve in the
heating flow, refer to Section 4.6.
14.11 Low Water Pressure Switch
Before starting refer to Section 11.
Remove the two screws securing the controls cover door and
controls fascia, see diagram 9.1.
Hinge the assembly open.
Release the water pressure and drain the central heating circuit
of the boiler, refer to Section 11.3 and 11.6.
Diagram 14.10
ELECTRICAL
SUPPLY
LEADS
SPINDLE
6988
PUMP
PLUG
END
SCREW
TERMINAL
COVER SCREW
PUMP
ADJUSTER
SECURING
SCREW 4)
7244
Diagram 14.7
SECURING SCREW
CAREFULLY BEND THE
RETAINING CLIPS FORWARD
TO RELEASE MULTI PIN
CONNECTORS
MULTI PIN
CONNECTORS
SENSING LEAD
