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.
17.12 To remove the gas flow rate
controller.
(See figure 49).
1. Remove the burner unit (See
section 17.7).
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 17.11 points 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.
17.13 To replace the burner.
(See figure 50).
1. Remove the burner unit (See section 17.7).
2. Support the elbow injector and unscrew the
injector nut.
3. Remove the two screws from the burner
clamping plate (See figure 50).
4. Lift the right hand side of the burner, slide it to
the right and lift clear
5. Refit in reverse order.
Page 45
© Baxi Heating U.K. Limited 2009.
INSTALLER GUIDE
Figure 50. Removal of burner
Figure 49. Flow rate controller
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