Glow-worm Ultracom hxi - Manual (Page 39)

0020107233_00 - 06/11 - Glow-worm
MAINTENANCE
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13.6 fan
For access, refer to section 13.1.
Refer to section 11.3 for removal of the fan, gas valve and
burner assembly.
Remove the gas valve as described in the relevant parts of
section 13.5.
Remove the venturi plate secured with three screws, see
diagram 13.2, and remove the two screws securing the fan to
the gas manifold.
Check the gasket and replace if necessary.
noTe: The 30hxi and 38hxi fan is secured through an
extension piece with two securing screws, check and replace
any seals or gaskets if necessary.
After assembly test for gas tightness and purge in accordance
with the current issue of BS6891or in IE, the current edition of
I.S.813 “Domestic Gas Installations”.
13.7 burner
For access, refer to section 13.1.
Refer to section 11.3 for removal of the fan, gas valve and
burner assembly.
Remove the four screws that secure the burner, see diagram
11.6.
noTe: The burner will require a new gasket when refitted.
13.8 front Insulation
For access, refer to section 13.1.
Refer to section 11.3 for removal of the fan, gas valve and
burner assembly.
Remove spark electrode, see section 11.2.
Remove burner as described in section 13.7, refer to diagram
11.6.
noTe: The burner will require a new gasket when refitted.
13.9 Rear Insulation
For access, refer to section 13.1.
Refer to section 11.3 for removal of the fan, gas valve and
burner assembly.
Remove securing screw and washer in the centre of the
insulation and withdraw insulation, see diagram 13.4.
13.10 Viewing Window
For access, refer to section 13.1.
Refer to diagram 13.5.
Remove circlip.
Remove steel washer.
Remove glass.
Remove fibre washer.
Replace in reverse order.
Diagram 13.3
13238
SECURING SCREW
HEAT
EXCHANGER
WASHER
REAR
INSULATION
Diagram 13.4
13277
13278
FIBRE WASHER
GLASS
STEEL WASHER
CIRCLIP
Diagram 13.5