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2.1 Fuel Requirements
The generator set operates using natural gas or LPG fuel. The generator set is EPA-certified for both natural gas and LPG fuels.
The fuel system installation must comply with applicable national, state, and local codes.
WARNING
Explosive fuel vapors can cause severe injury or death. Take additional precautions when using the following fuels:
Propane (LPG)—Adequate ventilation is mandatory. Because propane is heavier than air, install propane gas detectors low in
a room. Inspect the detectors per the manufacturer's instructions.
Natural Gas—Adequate ventilation is mandatory. Because natural gas rises, install natural gas detectors high in a room. Inspect
the detectors per the manufacturer's instructions.
2.1.1
Fuel Supply
Because of variable climates and geographical considerations, contact the local fuel supplier for fuel system planning and
installation. Figure 8 lists the recommended fuel ratings and other fuel supply information for natural gas and LPG fuels.
Verify that the output pressure from the primary gas utility pressure regulator is within the range shown in Figure 8 and that the
utility gas meter flow rate is sufficient to supply the generator set at rated load plus all other gas-consuming appliances. For LPG
tanks, verify that the output pressure is as shown in Figure 8. See Figure 9 for fuel consumption. Contact the fuel supplier for
flow rate information or a gas meter upgrade, if necessary.
Fuel Type
Fuel supply inlet
Fuel supply pressure, kPa (in. H
14RCA/L
20RCA/L
0.9-2.7 (3.5-11)
26RCA/L
Fuel flow rate, maximum, Btu/hr.
14RCA/L
20RCA/L
26RCA/L
Nominal Fuel Rating, Btu/ft.
Natural gas
LPG
Figure 8
Fuel Supply
TP-7091
4/23
Explosive fuel vapors.
Can cause severe injury or death.
Use extreme care when handling, storing, and using fuels.
Natural Gas
LPG
½ NPT
O)
2
1.2-2.7 (5-11)
1.7-2.7 (7-11)
193,000
203,000
281,000
340,000
290,000
322,500
3
1000
2500
Section 2. Fuel
21
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