15.6 To remove the gas valve.
(See figure 34).
1. Remove the burner unit (See
section 15.2).
2. If turning the burner upside
down, ensure that the work
surface is suitably protected. This
will avoid damage to the work
surface.
3. Remove the thermocouple by
unscrewing the thermocouple nut
at the gas valve.
4. Detach the pilot pipe from the
tap.
5. Detach the inlet pipe.
6. Detach the injector pipe.
7. Detach the electrode lead from
the base of the electrode.
8. Remove the control knob by pulling forward.
9. Remove the hexagonal nut securing the gas valve to the mounting bracket.
10. Remove the gas valve.
11. Refit in the reverse order.
15.7 To remove the piezo generator.
1. Remove the gas valve as section 15.6.
2. Make sure that the tap is in the off position.
3. Remove the circlip holding the piezo unit to the tap. Remove the piezo unit.
4. Replace in the reverse order.
15.8 To grease the control tap.
1. Detach the gas valve and remove the piezo generator as section 15.7 making sure
that the gas valve is in the OFF position.
2. Remove the two screws from the head of the gas valve. Remove the niting head
and spindle complete with collar and spring.
3. Note the position of the slot in the plug - mark its position on the tap body.
4. Remove the plug rotating slightly while pulling.
5. Clean and grease the plug lightly with suitable grease. Do not apply excessive
grease. Particularly, make sure that the gas ports in the tap are not restricted by
grease.
6. Push the plug into the tap body and position the slot in line with the mark
previously made on the tap body.
7. Reassemble the niting head and spindle complete with collar and spring making
sure that the components are correctly engaged. Check the operation of the tap.
8. Refit the piezo generator.
Page 34
INSTALLER GUIDE
© Baxi Heating U.K. Limited 2010.
Figure 34. Gas valve (Viewed from rear with
burner turned over)
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