27
20009654
GB
Installation
5.13.2 Gas train
Type-approved in accordance with EN 676 and supplied sepa-
rately from the burner.
To select the correct model of the gas train, refer to the “burner-
gas train combination” manual supplied.
5.13.3 Gas train installation
See the accompanying instructions for the adjustment of the gas
train.
The gas train is to be connected on the right of the burner, by
flange 1) (Fig. 29).
If it is necessary to connect it on the left of the burner, loosen nuts
and screws 3) and 4), remove blind flange 2) together with its
gasket and fit them to flange 1) tightening the nuts and screws.
5.13.4 Gas pressure
The tables show minimum pressure losses along the gas supply
line depending on the maximum burner output operation.
The values shown in the table refer to:
•
natural gas G 20 PCI 9.45 kWh/Sm
3
(8.2 Mcal/Sm
3
)
•
natural gas G 25 PCI 8.13 kWh/Sm
3
(7.0 Mcal/Sm
3
)
Column 1
Pressure loss at combustion head.
Gas pressure measured at the test point 1) (Fig. 30), with:
•
Combustion chamber at 0 mbar;
•
Burner working at maximum output;
•
Combustion head adjusted as in the diagram of Fig. 17.
DANGER
Disconnect the electrical power using the main
system switch.
Check that there are no gas leaks.
Beware of train movements: danger of crushing of
limbs.
Make sure that the gas train is properly installed
by checking for any fuel leaks.
The operator must use appropriate tools for instal-
lation.
Fig. 29
D3095
P1
P4
Model
kW
1
p (mbar)
2
p (mbar)
G 20
G 25
G 20
G 25
RL
S 300/E MX
1250
4.0
5.0
1.4
2.0
1500
5.2
10.0
1.9
2.9
1750
6.5
15.0
2.7
4.0
2000
7.7
20.0
3.5
5.2
2250
10.0
21.1
4.4
6.6
2500
12.3
22.2
5.4
8.1
2750
14.6
23.3
6.5
9.8
3000
17.2
25.4
7.8
11.7
3250
20.3
28.7
9.1
13.7
3550
24.0
32.8
10.9
16.4
RLS 400/E MX
1800
5.4
6.7
2.8
4.2
2000
6.9
9.0
3.5
5.2
2250
8.8
11.9
4.4
6.5
2500
10.7
14.8
5.4
8.1
2750
12.5
17.7
6.5
9.8
3000
14.4
20.6
7.8
11.6
3250
15.6
22.7
9.1
13.6
3500
16.7
24.8
10.6
15.8
3750
18.2
27.2
12.2
18.2
4000
20.1
30.0
13.8
20.7
4300
22.5
33.5
16.0
23.9
RL
S
500/E
MX
2500
8.9
13.3
3.3
5.0
2750
10.9
16.2
3.9
6.1
3000
12.9
19.1
4.7
7.2
3250
15.0
22.4
5.5
8.5
3500
17.8
26.3
6.4
9.8
3750
20.5
30.1
7.3
11.3
4000
23.3
34.0
8.3
12.9
4250
26.1
37.8
9.4
14.5
4500
29.0
42.4
10.5
16.3
4750
31.9
47.0
11.7
18.1
5050
35.4
52.6
13.3
20.5
Summary of Contents for RLS 300/E MX
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