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Establish, on the basis of the output desired, and in accordance with the table and the diagram underneath:
- the type of nozzle;
- the pump pressure;
- the combustion head setting.
EXAMPLE
The burner has to be matched with a boiler of 210 kW.
Assuming an efficiency of 90%, we need to develop approximately 233 kW i.e. burning reughly 20 kg/h.
In the output column we find, corresponding to 20, on the left, the required nozzles (2 of 2.50 GPH at 60°) the pump
pressure (12 bar), and on the right the correct position of the combustion head (3 set-points).
(1) Nozzles of the major existing makers may be used.
It might well be possible however, that for certain specific outputs, one type of nozzle is less suitable than others.
It is recommended not to change the atomizing angle.
(2) It is recommended not to goes down to the 10 bar, otherwise the jack controlling the air damper will open with
difficulty.
The pump pressure may be varied by acting on the screw 5) (fig. 1) and it can be controlled by placing a pressure
switch on the pressure gauge 4) (fig. 1).
5897
BURNER ADJUSTMENT
(4) Adjustment of the head (N° of set - points)
7
Output in kg/h
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