TABLE FOR THE CHOICE OF THE INJECTORS
INCREASE OF AIR NECESSARY FOR GAS COMBUSTION (2 m
3
/h x kW)
BURNERS Air necessary for combustion [m
3
/h]
Auxiliary (A) 2,00
Semi-rapid (SR) 3,80
Double ring (DR) 6,90
Fish burner (FB) 7,10
Test Point Pressure [kPa]
Natural gas Propane
1,0 2,75
BURNER
Auxiliary (A) 0,9 0,25 0,83 1 0,5 3
Semi-rapid (SR) 1,7 0,44 1,15 4 0,67 6
Double ring (DR) 3,4 0,85 1,6
15
0,92 Fully open
Fish burner (FB)
N = 2,8
0,85 1,42
15
0,90 Fully open
LPG = 3,06
Primary air
shutter
opening
[mm]
Nominal
Power
kW
Injector
Orifice Dia.
mm
Reduced
power
kW
Primary air
shutter
opening
[mm]
Injector
Orifice Dia.
mm
LUBRICATION OF THE GAS TAPS
If the gas tap becomes stiff, it is necessary to dismantle it carefully and clean it with petroleum
spirit. Specialist high temperature resistant grease should be used to lubricate the tap before
replacing.
The operations must be carried out by an authorised person.
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