To Remove The Pilot Unit; To Remove The Shut-Off Tap - Valor 961 Installation And Owner's Manual

are secured in the interrupter block to give a good electrical contact.

17.14 To remove the pilot unit.

1. Remove the burner unit (See section 17.11).
2. Detach the pilot pipe from the pilot unit.
3. Detach the thermocouple from the interrupter block
by unscrewing the thermocouple nut.
4. Detach the electrode lead from the underside of the
electrode tab.
6. Remove the two screws securing the pilot unit (See
figure 42).
7. Refit in the reverse order.
Note:
1. The pilot unit is an atmosphere sensing
device. It must be replaced as a whole
assembly. Its individual components are not
separately replaceable.
2. When the thermocouple is removed from the interrupter block, the
microswitch lead terminals in the interrupter block will be loose. Make sure
that they are properly secured to give a good electrical contact when
retightening the thermocouple nut.

17.15 To remove the shut-off tap.

(See figure 43).
1. Remove the burner unit (See section 17.12).
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 and interrupter block from the tap (See section 17.13 paragraphs 2 -
4).
3. Detach the pilot pipe from the tap.
4. Detach the inlet pipe.
5. Remove the hexagonal nut securing the
tap to the mounting bracket.
6. Detach the elbow by unfastening the
hexagonal nut connecting it to the flow rate
controller. Lift the tap (complete with elbow)
clear.
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.
©
Baxi Heating U.K. Limited 2008.
INSTALLER GUIDE
Page 39
Figure 42. Pilot unit removal
Figure 43. Shut-off tap (Viewed from
rear with burner turned over)