17.4 To remove the pilot unit.
1.
Remove the burner unit (See section 17.3).
2.
Unscrew and remove the two screws from the
gas valve shield (See figure 35). Place the shield
to one side.
3.
Unscrew and remove the three screws securing
the remote control receiver bracket to the
underside of the burner tray (See figure 36).
4.
Detach the pilot pipe from the pilot unit.
5.
Detach the thermocouple from the gas valve.
6.
Detach the electrode lead from the underside of
the electrode tab. Do this by holding the lead as
close to the electrode as possible. This will limit
the possibility of damaging the lead connection.
7.
Remove the two screws securing the
pilot unit (See figure 37).
8.
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.
17.5 To remove the gas valve.
(See figure 38).
1.
Remove the complete burner module
as in section 17.3
2.
Remove the electrode lead at the
pilot. Do this by holding the lead as
close to the electrode as possible. This
will limit the possibility of damaging the lead
connection.
3.
Unscrew the thermocouple at the rear of the gas
valve.
4. Remove the two motor lead connectors from the
front of the valve.
5.
Undo the inlet, outlet and pilot nuts on the gas valve
(See figure 38).
6.
Remove the two mounting screws on the underside
of the gas valve (See figure 38).
7.
Remove the valve by sliding it forward.
8.
Replace in reverse order. The motor lead connectors are two different sizes. They
Page 36
©
Baxi Heating U.K. Limited 2009.
Figure 37. Pilot unit removal
Figure 36. Remote control sensor
removal.
Figure 35. Gas valve shield
removal.
INSTALLER GUIDE
