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.
17.15 To remove the gas flow rate controller.
(See figure 46).
1.
Remove the burner unit (See section 17.11).
2.
If lying the burner on its back, ensure
that the work surface is suitably
protected. This will avoid damage to the
work surface.
3.
Detach the shut-off tap as detailed in
section 17.14 paragraphs 2-6.
4.
Detach the burner pipe from the
controller. Support the controller while
detaching to prevent excessive strain.
5.
Remove the nut and washer securing
the control pivot bracket to the controller
at the front. Support the pivot bracket
while removing the nut to prevent
possible damage to the microswitch.
6.
Remove the hexagonal bolt securing
the control pivot bracket to the controller
at the rear.
7.
Detach the control pivot bracket.
8.
Remove the hexagonal nut securing the controller to the front mounting bracket
and remove the flow rate controller.
9
. Refit in the reverse order.
©
Baxi Heating U.K. Limited 2008.
Page 41
Figure 45. Shut-off tap (Viewed from
rear with burner turned over)
Figure 46. Flow rate controller
INSTALLER GUIDE
Summary of Contents for 761
Page 56: ...Baxi Heating U K Limited 2008...
