Rational iCombi Pro Original Installation Instructions page 70

10 | Gas connection for gas devices
Natural gas G20 USA
Required connection
flow pressure (mbar)
Wobbe index (MJ/m³)
Wi
Wobbe index (MJ/m³)
Ws
Max. consumption at
nominal heat load (at
15 °C, 1013 mbar)
Max. consumption at
nominal heat load (at
15 °C, 1013 mbar)
Propane gas 3P G31 USA
Required connection
flow pressure (mbar)
Wobbe index (MJ/m³)
Wi
Wobbe index (MJ/m³)
Ws
Max. consumption at
nominal heat load (at
15 °C, 1013 mbar)
Max. consumption at
nominal heat load (at
15 °C, 1013 mbar)
70 / 84
6 half 6 full 10 half
size size size
6.5-10. 6.5-10. 6.5-10.
0 in/wc 0 in/wc 0 in/wc
45.67 45.67 45.67
50.72 50.72 50.72
48.58 104.64 82.21
ft³/h ft³/h ft³/h
49500 106500 83500
BTU/hr BTU/hr BTU/hr
6 half 6 full 10 half
size size size
10-15 10-15 10-15
in/wc in/wc in/wc
74.75 74.75 74.75
81.19 81.19 81.19
2.23 4.80 3.77
lb/h lb/h lb/h
48500 104000 82000
BTU/hr BTU/hr BTU/hr
80.06.083_iCombi Pro-iCombi Classic_IM_V01_en-US
10 full 20 half 20 full
size size size
6.5-10. 6.5-10. 6.5-10.
0 in/wc 0 in/wc 0 in/wc
45.67 45.67 45.67
50.72 50.72 50.72
149.48 156.96 298.96
ft³/h ft³/h ft³/h
152000 159500 303500
BTU/hr BTU/hr BTU/hr
10 full 20 half 20 full
size size size
10-15 10-15 10-15
in/wc in/wc in/wc
74.75 74.75 74.75
81.19 81.19 81.19
6.85 7.19 13.7
lb/h lb/h lb/h
148500 156000 296500
BTU/hr BTU/hr BTU/hr