Roca LAURA 20 - Pressures of Gas

Pressures of Gas
8
Gas Inlet Pressure:
G20(NG - Natural Gas): 8 water column inches (20 mbar)
G31(LP - Liquid Propane): 11.0 water column inches (27.4 mbar)
Gas supply pressure test point
(On the gas governor)
Operating gas
pressure test point
Gas input rates and pressures with Natural gas (G20) are for a
3
L.H.O.= 36,500Btu/m, density= 0,62, 59ºF and 14.7 PSI
(*) measured under standard conditions (59°F and 14.7 PSI)
(**) burner setting pressure
2.38
2.26
1.96
1.64
0.87
83
71
55
38
14
1.06
1.04
0.89
0.77
0.38
341
332
241
179
52
Heat Output
79,347 Btu
71,412 Btu
59,510 Btu
47,608 Btu
27,771 Btu
3
Gas Input Rate (m /h) (*)
G20 G31
Pressure (mmwg) (**)
G20 G31
Laura 20/20F wall-hung waterheaters