INSTALLER GUIDE
Page 26
10. BURNER AND SUPPLY PIPE INSTALLATION
10.1 Burner and supply pipe installation.
1.
Remove the ‘Aeration checking’ reminder label from the top of the burner.
2.
Refit the burner unit to the convection box with the two screws removed previously.
3.
Connect the supply line to the appliance.
4.
If closed
,
open the isolating valve at the inlet ‘T’ connector.
5.
Turn on the gas supply and pressure check the installation pipework for gas
soundness. In the United Kingdom (GB) check in accordance with the current edition
of BS 6891. In the Republic of Ireland check in accordance with the current edition of
IS 813 “Domestic Gas Installations”.
10.2 Preliminary burner checks.
Some burner operations can be checked at this stage. Checking now will mean that
less disassembly will be required if any problems are found.
A full check should still
be made, however, after final installation.
1.
If closed
,
open the isolating valve at the inlet ‘T’ connector.
2.
Rotate the control pivot bracket clockwise as far as it will go and hold in this
position (See figure 24). This should close
the ignition circuit and 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.
3.
When the burner is operating properly, gradually turn the control pivot bracket anti-
clockwise. The burner flames should gradually increase until the pivot bracket is
nearly at its furthest anti-clockwise rotation. Rotating further until the pivot bracket
comes to a stop should then turn the burner and pilot off.
4.
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.
5.
Align the hole near the bottom of the control linking bar with that in the control pivot
bracket. Join them with the knurled shouldered screw removed previously.
©
Baxi Heating U.K. Limited 2010.
Figure 24. Control pivot plate
