A.O. Smith SGS - 100, Installation & Service Manual

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Installation
24 Instruction manual SGS
3
is
3.4.3 Gas data
Gas data
Description II
2H3+
Unit SGS 80 SGS 100
Natural gas
Gas category G20-20 mbar
Orifice diameter mm 6.30 6.80
Nominal load (gross calorific value) kW 86.6 105.5
Nominal output kW 81.9 99.8
Supply pressure mbar 20 20
Burner pressure mbar 7.0 6.0
Gas consumption
(*)
m
3
/h 8.3 10.1
LP gas
Gas category G31-37mbar (propane)
Orifice diameter mm 4.70 5.10
Nominal load (gross calorific value) kW 84.8 103.3
Nominal output kW 81.9 99.8
Supply pressure mbar 37 37
Burner pressure
(†)
mbar 13 13
Gas consumption
(*)
kg/h 6.1 7.4
(*) Based on 1013.25 mbar and 15 °C.
(†) If using a blank plate instead of a burner pressure regulator, it is assumed that the burner pressure is equal to
the supply pressure. In practice, however, the burner pressure will be lower.