Supplied By www.heating spares.co Tel. 0161 620 6677
33
221648B
9 Replacement Parts
Notes.
Make sure that the fire is cold before replacing any parts.
Replacement of parts must be carried out by a competent
person.
Remove the internal fire front parts as the relevant part of
Section 5.2.
Before removing or replacing any fire front parts turn the gas
supply service cock to “Back Boiler Only On”, see diagram 3.5.
Isolate the electrical supply to the back boiler and fire front.
After replacing or disconnecting any gas carrying components,
always test for gas soundness, using a suitable leak detection
fluid and carryout functional check of controls.
To test the gas tap apply leak detection fluid to all joints, light the
burner and check all the joints for leakage at all tap settings.
Unless stated otherwise reassembly of all parts is in the reverse
order to removal.
9.1 Burner
Refer to Section 7.3.
9.2 Injectors
Refer to Section 7.3.
9.3 Gas Tap and Micro Switch Assembly
Refer to Section 7.5 and diagram 7.8 to remove the micro
switch.
9.4 Flue Blockage Safety Device
Refer to Section 7.3 to remove burner.
Disconnect the union connections, remove the mounting bracket
securing screws and flue blockage safety device, see diagram
7.6.
Remove the right hand side panel, see diagram 4.9.
Remove the right hand side casting, see diagram 5.5.
Remove the thermocouple nut. see diagram 7.10.
Remove the ignition lead, see diagram 19 (Instructions for Use).
Note. When refitting the flue blockage safety device, take care
not to trap the ignition lead under the mounting bracket.
When refitting make sure the spark gap is as shown in diagram
7.7.
9.5 Ignition Lead
Refer to Section 8.3 to remove the burner.
Disconnect the ignition lead to the electrode.
Disconnect the union connections, remove the mounting bracket
securing screws, remove the ignition lead (black end), see
diagram 7.6.
Remove right hand side panel, see diagram 4.9.
Remove right hand side casting, see diagram 5.5.
Remove the ignition lead(clear end), see diagram 19 (Instructions
for Use).
Note. When refitting the flue blockage safety device, take care
not to trap the ignition lead under the mounting bracket.
9.7 Spark Generator
Remove right hand side panel, see diagram 4.9.
Remove the right hand side casting, see diagram 5.5.
Remove retaining screw, disconnect the electrical leads and
then release the spark generator from the location tab at the
rear, see diagram 19 (Instructions for Use).
9.8 Battery
The battery is 9V and we recommend that it be of the alkaline
type, bought locally.
When fitting make sure that it is fitted as shown in diagram 19
(Instructions for Use).
9.9 Gas Tap Pilot Filter
Remove right hand side panel, see diagram 4.9.
Gain access to the tap as Section 7.6.
The filter, which is very small, is in pilot port of the gas tap, to
remove use a small non-metallic tool.
When fitting the replacement it is important that the filter is
seated correctly as shown in diagram 9.1.
