Rational iCombi Classic

10 | Gas connection for gas units
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2. Use a suitable gas leak detector to check for leaks in the gas supply and gas
distribution within the unit.
10.3 Gas consumption by gas type
Natural gas H G20
6-1/1 6-2/1 10-1/1 10-2/1 20-1/1 20-2/1
Required connection
flow pressure (mbar)
18-25 18-25 18-25 18-25 18-25 18-25
Wobbe index (MJ/
m³) Wi
45.67 45.67 45.67 45.67 45.67 45.67
Wobbe index (MJ/
m³) Ws
50.72 50.72 50.72 50.72 50.72 50.72
Max. Consumption at
rated thermal load (at
15°C, 1013 mbar)
1.4 m³/
h
3.05
m³/h
2.35
m³/h
4.23
m³/h
4.44
m³/h
8.47
m³/h
Max. Consumption at
rated thermal load (at
15°C, 1013 mbar)
13 kW 28 kW 22 kW 40 kW 42 kW 80 kW
Natural gas L G25
6-1/1 6-2/1 10-1/1 10-2/1 20-1/1 20-2/1
Required connection
flow pressure (mbar)
20-30 20-30 20-30 20-30 20-30 20-30
Wobbe index (MJ/
m³) Wi
37.38 37.38 37.38 37.38 37.38 37.38
Wobbe index (MJ/
m³) Ws
41.52 41.52 41.52 41.52 41.52 41.52