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2915847
20
GB
Start-up, calibration and operation of the burner
5.1
Notes on safety for the first start-up
5.2
Adjustments before first firing
Adjustment of the combustion head, and air and gas deliveries has
been illustrated page 15.
In addition, the following adjustments must also be made:
Open manual valves on the gas train.
Adjust the low gas pressure switch to the start of the scale
(Fig. 21).
Adjust the air pressure switch to the zero position of the scale
(Fig. 22).
Purge the air from the gas line.
Fit a U-type manometer (Fig. 23) to the gas pressure test point
on the sleeve.The manometer readings are used to calculate
MAX burner input using the tables on page 17.
Fan air damper: leave at the factory setting.
5
Start-up, calibration and operation of the burner
WARNING
The first start-up of the burner must be carried out
by qualified personnel, as indicated in this manual
and in compliance with the standards and regula-
tions of the laws in force.
WARNING
Check the correct working of the adjustment, com-
mand and safety devices.
WARNING
Refer to paragraph “Safety test - with gas ball
valve closed” on page 25 before the first start-
up.
CAUTION
Before starting up the burner it is good practice to
adjust the gas train so that ignition takes place in
conditions of maximum safety, i.e. with gas delivery
at the minimum.
Fig. 21
LOW GAS PRESSURE SWITCH
D2547
Fig. 22
AIR PRESSURE SWITCH
D2548
Fig. 23
D2265
Содержание C9541000
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