Burner & Main Injector; Pilot / A.s.d. Assembly - Baxi Bermuda 45/4 M Installation And Servicing Instructions

CHANGING COMPONENTS - Page 32
Burner and Main Injector
Remove the lint arrestor.
Remove the four hexagon headed screws holding the burner
to the mounting plate.
If required the main injector can be unscrewed from the feed
pipe and replaced. The copper sealing washer must be
retained for re-use.
Reassemble in reverse order.

Pilot / A.S.D. Assembly

WARNING: The pilot I A.S.D. assembly should not be
adjusted in any way.
The A.S.D. must not be altered so that it will not operate
or be bypassed in anyway.
The thermocouple cannot be changed as an individual
component. The complete assembly must be replaced
in the event of one or other component failure(s). Only
use a Genuine Baxi Spare Part.
Remove the controls heat shield from its clips if not already
done so.
Remove the ASD thermocouple nut at the rear of the valve.
Remove the ignition lead from the ASD electrode (and flame
sensing lead on electronic models). Undo the pilot feed pipe
at the ASD.
Remove the three screws holding the burner feed pipe
flange to the underside of the valve.
Separate the valve and burner assemblies.
Remove the lint arrestor.
Undo the two screws holding the ASD bracket to the burner
mounting plate.
Remove the original sealing washer from the burner
mounting plate.
Undo the screw holding the ASD to its bracket.
Fit the new ASD to the bracket. When fitting the ASD ensure
that the pilot aeration tube engages in its hole in the burner
mounting plate.
Ensure that the mounting plate is clean and then peel the
adhesive backing paper off the new sealing washer.
Align the hole in the new washer with the pilot aeration tube
protruding through the mounting plate.
Reassemble in reverse order.