Saunier Duval Xeon 60ff Instructions For Use Installation And Servicing page 34

SPLIT
PIN
10.4 Control Board (PCB) diagram 10.2A
Release the control box, refer to Section 5.6.
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 9.6 or 9.7 as appropriate.
10.5 Pilot Burner and Pilot Injector
Proceed as Section 8.3 and 8.5.
221659B
10 Replacement of Parts
PHIAL
RETAINING
BRACKET
SECURING
SCREW
OVERHEAT
CUTOFF
DEVICE
PHIAL
CONTROL
THERMOSTAT
PHIAL
RETAINING
CLIP
NOTE: All capillaries
and cable should be
situated within the
'Gland seal'.
GLAND
SEAL
(Right hand
illustrated)
Diagram 10.2
ELECTRICAL PLUGS
CHASSIS
EARTH
CONNECTION
EARTH
CONNECTION
MAIN
TERMINAL
STRIP
PLASTIC
RETAINING
CLIP
ELECTRICAL
PLUGS
ELECTRICAL
CONNECTION
BROWN CABLE "SL"
10.6 Electrode
Proceed as Section 8.3 and 8.5.
Gain access as Section 5.6 to remove lead from control box.
10.7 Multifunctional Control - diagram 10.3
Disconnect the pilot supply by unscrewing the tubing nut at the
multifunctional control, take care as there is a restrictor on 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
connections and fit the new "O" ring 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.
34
BOILER
THERMOSTAT
ELECTRICAL
CONNECTION
NO.3 "YELLOW"
CABLE
SUPPORT
SECURING
POST (4)
SCREW (2)
IGNITION
LEAD
ELECTRICAL
CONNECTION
BLUE CABLE "N"
Diagram 10.2A