secured to give a good electrical contact when retightening the thermocouple nut.
16.10 To remove the shut-off tap.
(See figure 45).
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 39
INSTALLER GUIDE
©
Baxi Heating U.K. Limited 2006.
Figure 45. Shut-off tap (Viewed from
rear with burner turned over)
