Table of Contents
Advertisement
5.9.2
Gas train
Type-approved in accordance with EN 676 and supplied
separately from the burner.
To select the correct gas train model, refer to the manual "Burner-
gas train combination" supplied with the unit.
5.9.3
Gas train installation
Disconnect the electrical power using the main
switch.
DANGER
Check that there are no gas leaks.
Pay attention when handling the train: danger of
crushing of limbs.
Make sure that the gas train is properly installed
by checking for any fuel leaks.
The operator must use the required equipment
during installation.
The gas train must be connected to the gas connection 1)
(Fig. 22), using the flange 2), the gasket 3) and the screws 4)
supplied with the burner.
The train can enter the burner from the right or left side,
depending on which is the most convenient, see Fig. 22.
20159575
Installation
5.9.4
indicates the pressure drops of the combustion head on the ba-
sis of the burner operating output.
ATTENTION
The values shown in refer to:
–
Natural gas G 20 NCV 9.45 kWh/Sm
–
Natural gas G 25 NCV 8.13 kWh/Sm
D505
Fig. 22
18
GB
Gas pressure
1 p (mbar)
kW
G 20
G 25
90
3.4
5.1
143
5.1
7.7
197
7.3
10.8
250
9.3
13.9
303
11.1
16.6
357
12.5
18.7
410
13.7
20.5
463
15.0
22.4
517
16.9
25.2
570
20.0
29.8
Data of head thermal power and gas
pressure refer to operation with gas
butterfly valve fully open (90°).
2 p (mbar)
G 20
G 25
0.4
0.6
0.6
0.9
0.8
1.2
1.0
1.5
1.2
1.8
1.4
2.1
1.5
2.3
1.7
2.5
1.9
2.8
2.2
3.3
Tab. F
3
3
(8.2 Mcal/Sm
)
3
3
(7.0 Mcal/Sm
)
Advertisement
Table of Contents
