Commissioning
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7311160-04 09.20
4.
Commissioning
4.1 Supply pressure
Supply pressure
The supply pressure must lie between the following values:
for natural gas: - min. 18,0 mbar
- max. 25,0 mbar
For LPG:
- min. 42,5 mbar
- max. 57,5 mbar
The supply pressure is measured as pressure in the gas flow at the measuring
nozzle of the gas valve.
The boiler must not be started up when the supply pressures are outside the said
range. The gas supply company should be informed.
4.2 Jet pressure
Guide values for injector pressure (full load)
* values in brackets: Wobbeindex WO
N
in kWh/m
3
** at pressure at end of boiler 0 mbar, 1013 hPa, 15 °C
Model
BGB/WGB
90
BGB/WGB
110
SGB 120
C/D
SGB 160
C/D
SGB 320
C/D
Nominal heat load
Heating
kW 20,0 - 90,0 25,0 - 110,0 30,0 - 120,0 40,0 - 160,0 40,0 - 320,0
Nominal heat output
80/60°C
kW 19,4 - 87,3 24,3 - 106,8 29,1 - 115,6 38,6 - 153,0 38,6 - 306,0
50/30°C
kW 21,4 - 93,1 26,7 - 113,5 31,6 - 123,0 42,2 - 163,5 42,2 - 327,0
Injector diameter for
Natural Gas LL (G25)
mm
9,30
11,40
10,30
12,00
12,00
Natural Gas E (G20)
mm
8,50
10,30
9,50
10,50
10,50
LPG (propane)
mm
6,50
7,40
7,50
8,00
8,00
Gas type
Guide values for injector pressure** (full load)
- Natural Gas LL (G25)
(12,4)*
mbar
12,5 - 13,5
12,0 - 13,0
10,7 - 11,7
11,3 - 13,0
11,3 - 13,0
- Natural Gas E (G20)
(15,0)*
mbar
12,5 - 13,5
12,0 - 13,0
10,0 - 11,2
11,6 - 13,2
11,6 - 13,2
- Propane
mbar 14,5 - 15,5
14,5 - 15,5
11,0 - 11,8
13,7 - 14,6
13,7 - 14,6
- Butane
mbar
8,4 - 9,0
10,3 - 11,4
10,3 - 11,4