Spillage & Flame Supervision Checks; Check For Spillage - Baxi 746 Installer's Manual

INSTALLER GUIDE
release from the 'LOW' position and turn back (clockwise) to the Pilot ignition position.
The main burner should extinguish but the pilot should remain alight. Depress the
control knob slightly and turn back (clockwise) to turn OFF.
This will extinguish the pilot.
If the above checks are satisfactory, continue with the installation. If not, check the
control and ignition circuitry and components as described in the servicing section of
this guide.
While cooling the ceramic fuel effect may make some crackling noises. This is quite
normal.
14. SPILLAGE & FLAME SUPERVISION CHECKS

14.1 Check for spillage.

A spillage check must be made before leaving the installed appliance with the
customer. Make this with all the ceramic fuel effect pieces and lower firefront in
position.
1. Close all doors and windows in the room containing the appliance.
2. Light the appliance and turn the control knob to "HIGH".
3. Leave the appliance on for five minutes.
4. Place the smoke match into the appliance canopy (See figure 21).
5. The installation is satisfactory if the smoke is drawn into the appliance. If the smoke
is not drawn into the appliance, leave the appliance alight at the maximum setting for a
further ten minutes and then repeat the test. If smoke is still not drawn into the
appliance, inspect the sealing to the fireplace surround. If the sealing is satisfactory but
the appliance is installed with the flue restrictor (See
section 8.4), remove the restrictor, reseal the
appliance and retest. If smoke is still not drawn into
the appliance, disconnect the appliance and seek
expert advice.
6. If the above test is satisfactory, open all internal
connecting doors, hatches, etc., in the room. Keep
all doors and windows that open to the outside of the
building closed. Recheck for spillage as above. If
an extractor fan is installed in the same room as the
appliance or a connecting room, check that spillage
does not occur with the fan operating and all doors
and other openings between the fan and the
Figure 21. Spillage check
appliance open. If the smoke is drawn into the
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