Pressure Loss - Riello MBC 1200/1 Montage Und Bedienungsanleitung / Ersatzteile Katalog

5.6

Pressure loss

The gas train pressure loss p is provided from the diagram (Fig.
11); the scales of the volumetric output
for:
a air
n natural gas (G20)
p propane (G30)
c town gas (G140), only for applications not covered by the
Gas Appliances Directive (2009/142/EEC)
G 20
G 25
G 31
G 110
AIR
2916122
Activation, calibration and functioning
V °
are valid respectively
150
140
MBC 1200
130
120
110
100
90
80
firing
rate
70
60
50
40
30
20
10
100 200 300
0
0 100 200 300
0
100 200
0 100 200 300 400
0
100 200
V [m3/h]
The values, provided from the diagram, can be different accord-
ing to the pressure regulator calibration.
The minimum necessary pressure in the network can be obtained
by adding the pressure of the diagram to the burner pressure
losses (see burner manual) and the back pressure of the com-
bustion chamber (see heat generator manual).
MBC 1900
400 500 600 700
400 500 600 700
300 400
500 600 700 800
300 400 500
(+15 °C, 1013 mbar)
12 GB
20050469
MBC 3100
MBC 5000
800 900 1000
800 900 1000
500 600
1100
900 1000
1200
600 700 800
Fig. 11