Riello RS 1300/E C01, Installation, Use And Maintenance Instructions

Page: 24 / 56

20089387 22 GB
Installation
5.11.2 Gas train
Approved according to standard EN 676 and provided separately
from the burner.
5.11.3 Gas train installation
The gas train is prearranged to be connected to the burner by the
flange 1) (Fig. 22).
5.11.4 Gas pressure
Tab. J indicates the pressure drops of the combustion head and
gas butterfly valve, on the basis of the burner operating output.
The values shown in Tab. J refer to:
–
Natural gas G 20 NCV 9.45 kWh/Sm
3
(8.2 Mcal/Sm
3
)
– Natural gas G 25 NCV 8.13 kWh/Sm 3
(7.0 Mcal/Sm
3
)
Tab. J
Column 1
Combustion head pressure drop.
Gas pressure measured at test point 1)(Fig. 23), with:
•
combustion chamber at 0 mbar;
• burner working at maximum modulating output;
• combustion head set as on page 21.
Column 2
Pressure loss at gas butterfly valve 2)(Fig. 23) with maximum
opening: 90°.
To calculate the approximate output at which the burner oper-
ates:
–
subtract the pressure in combustion chamber from the gas
pressure measured at test point 1) (Fig. 23).
– Find, in Tab. J related to the burner concerned, the pressure
value closest to the result of the subtraction.
– Read off the corresponding output on the left.
DANGER
Disconnect the electrical power using the main
switch.
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.
1
Fig. 22
20094555
kW
1

p (mbar) 2

p (mbar)
G 20 G 25 G 20 G 25
RS 13
00/E
2500 1.6 2.4 0.2 0.3
3500 3.1 4.7 0.4 0.6
4500 5.1 7.8 0.7 1
5500 7.7 11.6 1 1.5
6500 10.7 16.2 1.5 2.1
7500 14.3 21.6 1.9 2.8
8500 18.4 27.8 2.5 3.6
9500 23 34.7 3.1 4.5
10500 28 42.4 3.8 5.5
11500 33.6 50,8 4.6 6.6
12500 40 60,1 5.5 7.8
13000 43 65 5.9 8.5
RS 1600
/E
3500 3.1 4.6 0.4 0.6
5000 6.4 9.5 0.8 1.2
6500 10.8 16.1 1.5 2.1
8000 16.5 24.4 2.2 3.2
9500 23.2 34.5 3.1 4.5
11000 31.1 46.2 4.2 6
12500 40.2 59.6 5.5 7.8
14000 50.4 74.8 6.8 9.8
15500 61.7 91.7 8.4 12
16500 70 104 9.5 13.6
R
S
20
00/E
4000 3.8 6 0.5 0.8
5500 7.3 11.2 1 1.5
7000 12 18.2 1.7 2.5
8500 17.5 26.8 2.5 3.6
10000 24.2 37 3.5 5
11500 32 49 4.6 6.6
13000 4.1 62.6 6 8.5
14500 5.1 78 7.3 10.5
16000 62 95 9 12.8
17500 74 113.5 10.7 15.3
19000 83 13.4 12.6 18
19500 92 141 13.3 19