16.10 To remove the shut-off tap.
(See figure 49).
1.
Remove the burner unit (See section 16.6).
2.
If lying the burner on its back, ensure that the
work surface is suitably protected. This will avoid
damage to the work surface. Turn the burner unit
upside down. Detach the thermocouple and
interrupter block from the tap (See section 16.8
paragraphs 2 - 4).
3.
Detach the pilot pipe from the tap.
4.
Detach the inlet pipe.
5.
Remove the hexagonal nut securing the tap to
the mounting bracket.
6.
Detach the elbow by unfastening
the hexagonal nut connecting it to the
flow rate controller. Lift the tap
(complete with elbow) clear.
7.
Loosen the hexagonal locknut
securing the elbow to the tap.
Remove the elbow by rotating it.
8.
If fitting a new tap, remove the
hexagonal nut at the mounting
bracket end of the old tap and fit to
the replacement tap. Refit in the
reverse order. When refitting, make
sure that the tap spindle is in the
correct relationship relative to the
control pivot bracket. Rotate the pivot
bracket fully clockwise. The tap
spindle should “bottom out” (i.e. the
tap should be fully open) after the pivot bracket has actuated the ignition microswitch
but before it has pushed the microswitch leaf against the microswitch body.
When refitting the thermocouple and interrupter block, make sure that the microswitch
wires are properly secured to give a good electrical contact.
Page 47
©
Baxi Heating U.K. Limited 2010.
INSTALLER GUIDE
Figure 49. Shut-off tap (Viewed from
rear with burner turned over)
Figure 48. Pilot unit removal
Summary of Contents for 954
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