18.5 To remove the complete burner unit.
1.
Remove the firefront, ash pan and fascia (See section 18.2 - 18.4).
2.
Remove the ceramic fuel effect.
3.
Support the inlet elbow to avoid straining the pipework and disconnect the
appliance from the elbow.
4.
Detach the burner unit from the hotbox by
removing two screws (See figure 37).
5.
Replace in the reverse order. The ceramic
fuel effect pieces must be replaced as in the
ceramic guides supplied with the ceramics.
The ceramic guide may have been placed
inside or attached to this installer and owner
guide.
18.6 To remove the pilot unit.
1.
Remove the complete burner unit (See
section 18.5).
2.
Detach the pilot pipe from the pilot unit.
3.
Detach the thermocouple from the gas valve.
4.
Detach the electrode lead from the underside of the electrode tab.
5.
Remove the two screws securing the pilot unit (See
figure 38).
6.
Refit in the reverse order.
Note: The pilot unit is an atmosphere sensing device.
It must be replaced as a whole assembly. Its
individual components are not separately
replaceable.
18.7 To remove the gas valve.
(See figure 39).
1.
Remove the complete burner unit (See section
18.5).
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 from the tap.
3.
Detach the pilot pipe from the tap.
4.
Detach the inlet pipe.
5. Detach the injector pipe
6.
Detach the electrode lead from the base of the electrode
7.
Remove the control knob by pulling forward.
8.
Remove the thermocouple by unscrewing the thermocouple nut at the gas valve.
9.
Remove the hexagonal nut securing the gas valve to the mounting bracket.
10.
Remove the gas valve
11.
Refit in the reverse order.
©
Baxi Heating U.K. Limited 2011.
Page 40
INSTALLER GUIDE
Figure 38. Pilot unit removal
Figure 37. Burner attachment points
