32
221966B
12.4 Control Board (PCB) - diagram 12.2A
Release the control box, refer to Section 7.1.
Disconnect the three electrical plugs and ignition lead.
Release the cables from the plastic retaining clip, then disconnect
the cables from the PCB to the main terminal strip, control
thermostat and earth connection.
Release the main terminal strip and plastic label.
Carefully pull the board away from its supports.
When refitting refer to wiring diagram 11.5.
12.5 Pilot Burner and Pilot Injector
Proceed as Section 10.2 and 10.4.
12.6 Electrode
Proceed as Section 8.3 and 8.5.
Gain access as Section 7 to remove lead from control box.
12.7 Multifunctional Control - diagram 10.3
Disconnect the pilot supply by unscrewing the tubing nut at the
multifunctional control.
120FF ONLY. Take care as there is a restrictor in the pilot pipe.
Disconnect the electrical plug.
Support the multifunctional control, remove the four extended
screws from the flanged connections at the left and right hand
side.
Remove and discard the original “O” rings from the flanged
connection and fit the new “O” rings supplied, into recess,
before fitting the replacement multifunctional control.
After assembly test for gas soundness and purge in accordance
with the current issue of BS6891.
12.8 Solenoid - diagram 12.3
Remove the electrical plugs from the multifunctional control.
Remove the securing screw and then the solenoid assembly.
Diagram 12.2
Diagram 12.2A
OVERHEAT
CUTOFF
ELECTRICAL
CONNECTION
"WHITE"
CABLE
PHIAL
POCKET
THERMOSTAT
PHIAL
SPLIT
PIN
RETAINING
CLIP
OVERHEAT
CUTOFF
DEVICE
PHIAL
SPLIT
PIN
CONTROL
THERMOSTAT
ELECTRICAL
CONNECTION
NO.6
"YELLOW"
CABLE
ELECTRICAL
CONNECTION
BLUE CABLE "N"
ELECTRICAL
CONNECTION
BLUE CABLE "SL"
ELECTRICAL
PLUGS
PLASTIC
RETAINING
CLIP
MAIN
TERMINAL
STRIP
CHASSIS
EARTH
CONNECTION
EARTH
CONNECTION
SECURING
SCREW (2)
IGNITION
LEAD
4301
5756
ELECTRICAL PLUGS
SUPPORT
POST (4)
4090
12 Replacement of Parts
