Operating instructions

236 720 607 160
as per Section 15.5.1.
15.6 Control Unit
Unfasten the two screws securing the front panel of the
control unit and remove. Disconnect inlet cable and all
wiring connections. Remove control unit by depressing
the two curved finger tabs on top of the box and withdraw
forward.
Replace the control unit and reconnect the wiring.
Carry out Gas Type selection as in Section 15.5.2 and
Performance Optimisation as Section 14.
15.7 Fuses
Unfasten the two screws securing the front panel of the
control unit and remove.
Replace appropriate fuse as per Fig 8, key 7 or 8.
15.8 Fan
Remove all wiring connections from the fan.
Remove the pressure sensing tubes from the fan noting
their position, black to the top, clear to the bottom
connection.
Remove the four fixing screws securing the fan to the
appliance.
Remove the fan and check for a restrictor ring as per
Section 12.2, Tables 6 or 7, remove restrictor and place
with new fan as appropriate (Fig 12).
Re assemble in reverse order.
15.9 Pressure switch
Remove the wiring connections.
Remove the pressure sensing tubes, noting their position,
black to the bottom, clear to the top.
Unfasten the retaining screw, replace the switch.