INSTALLER GUIDE
Page 18
9. BURNER & SUPPLY PIPE INSTALLATION
9.1
Burner & Supply Pipe Installation
The burner is produced from a soft ceramic material and should be handled carefully.
There are two sets of burner ports. One set are located on the top face of the burner, and
the other, on the front face. Each unit is flame tested before it leaves the factory, and as a
result, some slight discoloration may be evident around the burner ports. There may also
be some slight surface cracking evident on the burner, which is completely normal and is
not detrimental to performance. The burner is retained by two clamps and set in position
before it leaves the factory.
1.
Check that the injector is aligned straight and central to the venturi. Check that the
pilot unit is clear of the front face of the burner by 2-4mm.
2
. Refit the burner unit to the convection box with one nut.
3
. Connect the supply line to the appliance.
4
. 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”.
9.2
Reference Pressure Check
The appliance is pre-set to give the
correct heat input at the inlet pressure
shown in section 2 of this manual. No
adjustment is necessary.
1
. Attach a pressure gauge to the
pressure test point (see figure 10).
2
. If closed, open the isolating valve at
the inlet ‘T’ connector.
3.
Follow the lighting procedure
(described further on in this manual) to
establish the pilot and then turn to
maximum setting. Check the gas
pressure against the setting pressures (see Appliance Data).
4.
After checking, turn off the appliance. Remove the pressure gauge and replace the test
point sealing screw.
5
. Relight the appliance. Turn to the maximum output position and test around the
sealing screw for gas soundness with a suitable leak detection fluid.
When the above checks have been completed close the isolating valve on the inlet
‘T’ connector and allow the fire to cool.
Figure 10 Pressure test point
