pipe from the pilot unit.
11.3.7.
Replace in the reverse order.
Note: 1 The pilot unit must be replaced as a whole assembly. Its individual
components are not separately replaceable.
2. Once removed, ensure that the dust cage is cleaned before refitting. Make
sure that it locates squarely onto the pilot unit without any gaps between the
cage edges and the pilot unit.
11.4 To remove the piezo generator (manual ignition models).
11.4.1.
Remove the fascia as section 11.1.
11.4.2.
Disconnect the electrode lead from below the pilot electrode.
11.4.3.
Disconnect the control spindle & adaptor from the gas tap by removing the
split pin. Lift the adaptor clear of the gas tap spindle.
11.4.4.
Remove the circlip holding the piezo generator to the tap.
11.4.5.
Replace in the reverse order. Make sure that the control knob with spindle is
correctly turned to agree with the gas tap position before refitting the split pin.
11.5 Note for electronic ignition.
Servicing the gas valve area of the gas fire will require the electronic spark generator
and mounting bracket to be removed. This will allow access to the pipe nuts etc. To
do this remove the two screws that secure it to the lower right support foot then move
it to one side. Refit after servicing is complete.
There will be a fascia support bracket located using the same screws as for the
electronic generator and support bracket.
It is important that the ‘fascia support
bracket’ is fitted to the support foot before the ‘electronic generator and
support bracket assembly’.
11.6 To remove the complete burner module, pipes and pilot.
11.6.1.
Remove the fascia as section 11.1.
11.6.2.
Support the inlet ‘T’ connector to avoid straining the pipework and disconnect
the appliance from the inlet ‘T’ connector.
11.6.3. Manual ignition:
Disconnect the control spindle & adaptor from the gas
tap by removing the split pin. Lift the adaptor clear of the gas tap spindle.
It is important to note the orientation of the ‘D’ flat at the top of the spindle as it
will need to be replaced in the same way.
11.6.3. Electronic ignition:
Remove the lower ‘R’ clip from the base of the
spindle assembly. Unscrew the brass nut that secures the microswitch bracket to the
top of the gas valve. Lift the microswitch bracket and spindle clear of the gas valve
top.
It is important to note the orientation of the ‘D’ flat at the top of the spindle as it
will need to be replaced in the same way.
11.6.4.
Detach the left end of the burner module from the radiant box by removing
one screw and a wingnut (See figure 17).
11.6.5.
Carefully slide the burner module to the right to free it from the right side of
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©
Baxi Heating U.K. Limited 2008.
INSTALLER GUIDE
Содержание 347 Brava 4 Oxysafe
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