9
2915246
GB
ADJUSTMENT BURNER
Two separate adjustments have to be made: air and gas.
These adjustments can be carried out when the burner is
still open, during the installation (see Fixing to the boiler).
Air setting
Loosen the two screws 1) and move the internal part of
the combustion head 2) so that its rear edge 3) is coinci-
dent with the desired set-point on the plate 4). Tighten the
screws 1).
Gas setting
Loosen the screw 5), move the ring 6) so that the pointer
7) is coincident with the desired setpoint 8). Tighten the
screw 5).
Attention:
the set-point number is the same for air and gas setting
and is given by the following diagram.
Example:
the burner is installed on a boiler of 500 kW, assuming an efficiency of 90% the burner output should be 560 kW.
From the diagram it can be seen that the air and gas settings for this rating should be no. 5.
S7533
1
8
6
5
2
3
7
4
Set-point number = for air and gas
B
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rn
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tp
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Kcal/h
kW
