Convotherm 4 10.10, Installation Manual, Page: 132 / 191

9.4 Gas specification, natural gas 2H (E), natural gas 2L (LL), propane 3P,
liquefied gas 3B/P
Convotherm 4 GB/GS
Gas type
Natural gas
2H (E)
Natural gas
2L (LL)
Propane 3P Liquefied gas
3B/P
Standard test gas, code G20 G25 G31 G30/G31
Operating materials
Natural gas, LPG
x x x x
Gas supply values
Gas pipe connection
R 3/4" R 3/4" R 3/4" R 3/4"
Supply flow pressure [mbar] 20 (17 - 25) 20/25 (18 -
30)
29/37/50 (25
- 57.5)
29/37/50 (25
- 57.5)
Gas data (as per CE) at 15 °C and 1013 mbar dry
Lower Wobbe Index W
i
[MJ/m
3
]
45.7
(36.8 - 49.6)
37.4
(30.9 - 40.5)
70.7
(68.1 - 70.7)
80.6
(68.1 - 80.6)
Upper Wobbe Index W
S
[MJ/m
3
]
50.7
(40.9 - 54.7)
41.5
(34.4 - 44.8)
76.8
(72.9 - 76.8)
87.3
(72.9 - 87.3)
Lower calorific value H
i
[MJ/m
3
]
34 29.3 88 116.1
[MJ/kg] - - 46.3 45.7
Higher calorific value H
S
[MJ/m
3
]
37.8 32.5 95.7 125.8
[MJ/kg] - - 50.4 49.5
Exhaust gas extraction system
Air conditioning system
with safety shutdown
mandatory mandatory mandatory mandatory
Exhaust gas values
CO
2
[%] 9.3 - 9.5 9.1 - 9.3 10.8 - 11.2 12.8 - 13.3
CO [ppm] < 500 < 500 < 500 < 500
9.5 Gas specification, natural gas (AUS/NZL), propane (AUS/NZL)
Convotherm 4 GB/GS
Gas type
Natural gas (AUS/
NZL)
Propane (AUS/
NZL)
Operating materials
Natural gas, Propane
x x
Gas supply values
Gas pipe connection
R 3/4" R 3/4"
Supply flow pressure [kPa] 1.13 (1.0 - 5.0) 2.75 (2.75 - 6.0)
Exhaust gas extraction system
Air conditioning system with safety shutdown
mandatory mandatory
Exhaust gas values
Exhaust gas value CO
2
[%] 9.5 - 9.7 10.8 - 11.0
Exhaust gas value CO [ppm] < 500 < 500
9 Technical data
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