Rheem GEN12S Manual de instalación descargar pdf (Pagina 12)

Fuel Consumption

See Figure 7 for estimated fuel supply requirements at half

and full load for both natural gas and LP vapor.

Fuel Pipe Sizing

Figures 8 and 9 provide the maximum capacity of pipe in

cubic feet of gas per hour for gas pressures of 0.5 psi or

less and a pressure drop of 0.3 in. water column. Specific

gravity of gas is shown.

Listed values compensate for a nominal amount of

restriction from bends, fittings, etc. If an unusual number of

fittings, bends, or other restrictions are used, please refer to

federal and local codes.

NPT 10ft 15ft 20ft 30ft 40ft 50ft 60ft 70ft 80ft 90ft 100ft

3/4” 277 192 158 126 107 95 87 79 74 69 65

1” 428 360 293 236 202 180 164 151 139 129 123

Liquid Propane (LP) (sg=1.50)

Figure 9 — LIQUID PROPANE (LP) GAS Pipe Size - Gas Flow Chart, in cubic feet per hour

Natural Gas* LP Vapor**

1/2 Load Full Load 1/2 Load Full Load

12kW

102 195 41 79

15kW

140 218 66 96

* = Natural Gas is in cubic feet per hour

** = LP Vapor is in cubic feet per hour

Figure 7 — Fuel Supply Requirements

NPT 10ft 15ft 20ft 30ft 40ft 50ft 60ft 70ft 80ft 90ft 100ft

3/4” 346 293 240 192 163 145 132 120 113 106 99

1” 653 549 446 360 307 274 250 230 211 197 187

Natural Gas (sg=0.65)

Figure 8 — NATURAL GAS (NG) Pipe Size - Gas Flow Chart, in cubic feet per hour

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 22 23

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Rheem GEN12S Manual de instalación Pagina 12