Burner Installation; Burner And Supply Pipe Installation; Lighting The Burner - Baxi 748 Installer's Manual

INSTALLER GUIDE
12. Do not cut off any excess cable, instead coil up the cable so that they are available
to allow easy removal and refitting of the appliance during subsequent service calls.
9.3 Floor sealing - All installations.
Using the floor sealing tape supplied, seal the bottom
of the hotbox to the fireplace and hearth floor (See
figure 18).
Figure 18. Floor sealing

10. BURNER INSTALLATION

10.1 Burner and supply pipe installation.

1. Fit the burner unit to the hotbox using the two screws removed previously
2. Connect the supply line to the appliance.
3. If closed open the isolating valve at the inlet 'T' connector.
,
4. Turn on the gas supply and pressure check the installation pipework for gas
soundness. In the United Kingdom check in accordance with the current edition of BS
6891. In the Republic of Ireland refer to the current edition of I.S. 813 "Domestic gas
installations".

10.2.1 Lighting the burner.

1. If closed, open the isolating valve at the inlet 'T' connector.
2. Depress the control pivot plate as far as it will go and hold in this position (See
section 6, figure 8). This should close the ignition circuit and (now that the gas is
connected) simultaneously open the gas tap allowing the gas to flow to the pilot.
Wait a few seconds while the air is purged. The electronically generated sparks should
light the pilot. The pilot should then light the main burner at its low setting. There may
be a delay of up to four seconds between the pilot lighting and ignition of the gas at the
main burner. This is normal and is due to the time required to fill the main burner
compartment with sufficient gas for ignition.
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©
Baxi Heating U.K. Limited 2006.