2916218
4
GB
LPG Kit
Pressure measured at the coupling (5)(fig.2) with combustion chamber at 0 mbar and burner in 2nd stage oper-
ation.
If the combustion chamber is pressurized, the required gas-pressure is that shown on the diagram plus the pres-
surization value.
The same as for natural gas.
The same as for natural gas. The table below reports the minimum pressure required before the filter, pressure
loss at the combustion head included, to have the maximum output with combustion chamber pressure at 0
mbar.
For the max pressure allowed by the gas valve approval, see the burner instruction or the gas train instruction.
kW
Pressure loss
at comb. head
(mbar)
Pressure loss
at gas butterfly
valve
(mbar)
Pressure loss of gas train (mbar)
3970221
3970225
3970222
3970226
3970223
3970227
1250
7.5
2.9
5.8
4.7
3.7
1500
11.5
4.2
7.2
5.4
4
1750
15.5
5.7
8.7
6.3
4.4
2000
19.5
7.5
10.4
7.3
4.8
2250
24.3
9.4
12.9
8.6
5.3
2500
29.1
11.7
15.4
10
5.9
2700
34.1
13.6
17.4
11.1
6.3
GAS PRESSURE - OUTPUT
Gas pre
s
su
re
(
m
ba
r)
Output
D3850
30
1200
28
24
20
16
12
1900
1700
1500
1300
1100
26
22
18
14
10
kW
Mcal/h
1400
1600
1800
2000
2200
2800
2600
2400
2100
2300
2500
32
8
6
34
36
COMBUSTION CHAMBER PRESSURE
GAS TRAIN
