2
Product description
Logano G234X – 6 720 804 886 (2012/08) 7
2.8.2 Specifications
Fig. 3 Pressure drops (1 psi = 69 mbar, 1 GPM = 0.23 m³/h)
[x] Flow Rate in GPM ( m³/h)
[y] Pressure drops in psi
[1] 160 500/187 700 BTU/hr (boiler rating 38/45)
[2] 228 400 BTU/hr (boiler rating 64)
[3] 266 400 BTU/hr (boiler rating 55)
2.8.3 Main gas orifice identification and rated orifice pressure
Boiler capacity Number of injectors
Main gas orifice identification Rated orifice pressure for natural gas
0 - 8500 ft (0 - 2591 m) [In. W.C.] [mbar]
38 3 3.70 3.0 7.6
45 3 3.70 4.1 10.4
55 4 3.50 4.6 11.5
64 4 3.80 4.4 10.9
Table 4 Main gas orifice identification and rated orifice pressure for natural gas
Boiler capacity Number of injectors
Main gas orifice identification Rated orifice pressure for propane gas
0 - 8500 ft (0 - 2591 m) [In. W.C.] [mbar]
38 3 2.20 10.6 26.5
45 3 2.40 10.5 26.2
55 4 2.30 10.3 25.8
64 4 2.45 10.3 25.9
Table 5 Main gas orifice identification and rated orifice pressure for propane gas
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