Ignition Check - Baxi Fires Division 740FS Installer's Manual

fireplace floor are sound enough to take the eyebolts and screws. If these areas have
deteriorated due to prolonged use, they should be made sound with a suitable cement.
5.1.4 Installations using a metal flue box
The whole of the top surface of the metal flue box must be covered with a 100mm layer
of mineral wool or equivalent insulation (See figure 2).
5.2 Fireplace flue pull.
Close all doors and windows in the room in which the appliance is to be installed. After
confirming with a match that smoke is drawn into the flue, light a 13 gram smoke pellet
and check that there is a definite flow through the flue. Verify outside that the smoke
exits from one terminal only and that the termination is suitable. Observe, where
possible, upstairs rooms and loft spaces for signs of escaping smoke indicating a
defective flue. If there is not a definite flow warm the flue for a few minutes and repeat
the smoke pellet test. If there is still no definite flow the flue may need remedial work –
Do not fit the appliance until there is a definite flow through the flue.
Before attempting to install, it is worth checking that the electronic ignition system
performs satisfactorily.
Fit the battery to the ignition block located below the
burner tray at the left side (See figure 8). The positive
terminal (+) is to the bottom as you insert.
Rotate the control pivot bracket clockwise as far as it
will go and hold in this position (See figure 9). This
should close the ignition circuit and sparks should be
seen tracking from the electrode pin to the pilot tip (See
figure 9).
If there are no sparks
make the following
checks.
Check condition of
!
battery and that it is
correctly fitted.
If the above is
!
satisfactory, check the
ignition circuit and
components - see the
servicing section in this guide.
©
Baxi Heating U.K. Limited 2007.
INSTALLER GUIDE

6. IGNITION CHECK

Figure 9. Slider control
Page 21
Figure 8. Fitting the battery