Saunier Duval Xeon 60ff Instructions For Use Installation And Servicing page 36

10.11 Insulation - diagram 10.5
Combustion Chamber Front
Remove the retaining screw then the insulation.
Sides
Slide the insulation out.
Rear
With the side insulation removed the rear insulation can be
removed and replaced.
10.12 Viewing Window - diagram 10.6
Remove the old self adhesive aluminium foil gasket and the old
mica window. Replace with a new mica window. Peel off the
backing paper and secure with new self adhesive aluminium foil
gasket, see diagram 10,6. Ensure no air bubbles are trapped
underneath the foil.
Important
Make sure that the mica window fully covers the opening and
that the hole in the aluminium foil gasket is centred over
opening.
221659B
10 Replacement of Parts
36
FRONT INSULATION
RETAINING
SCREW
SIDE INSULATION
REAR INSULATION
Diagram 10.5