Baxi 124 Combi Installation And Service Manual page 35

Gasket
Extension Piece
Gasket
Air/Gas
Collector
Air/Gas
Collector
Spark Ignition
Electrode
Electrode
Flame Sensing
Leads
Electrode
© Baxi Heating UK Ltd 2017
Cover
Burner
Fig. 52
Control Box removed
for clarity
Heat
Exchanger
Rear
Insulation
Cover
Insulation
Seal
Fig. 53
13.0 Changing Components
13.4 Burner (Fig. 52)
1. Remove the clip securing the gas feed pipe to the air/gas
venturi and disconnect the fan electrical plugs.
2. Undo the screws securing the air/gas collector to the
extension piece. Note its orientation and remove the
extension piece (where fitted) from the cover.
3. Undo the screws securing the burner. Withdraw the
burner from the cover and replace with the new one.
4. Examine the gasket(s), replacing if necessary.
Note: Where the extension piece is fitted the two
gaskets are not the same !
5. After changing the burner check the combustion. - see
Section 14.1.
13.5 Insulation (Fig. 53)
1. Remove the clip securing the gas feed pipe to the air/gas
venturi and disconnect the fan electrical plugs.
2. Remove the electrodes as described in section 13.1.
3. Undo the nuts holding the cover to the heat exchanger.
Draw the air/gas collector, fan and cover assembly away.
4. Remove the cover insulation piece.
5. Fit the new insulation carefully over the burner and align
it with the slots for the electrodes.
6. If the rear insulation requires replacement, remove it and
all debris from the heat exchanger. Also it may be necessary
to separately remove the spring clip from the pin in the
centre of the heat exchanger and the 'L' shaped clips
embedded in the insulation.
7. Do not remove the shrink-wrapped coating from the
replacement rear insulation. Keep the insulation vertical and
press firmly into position.
8. Examine the cover seal and replace if necessary.
Reassemble in reverse order.
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