Propane Vapor (LPG)
In cases where liquefied propane vapor is selected as the fuel of choice, insure fuel delivery in the gaseous
state, with a minimum energy content of 2500 BTU/ft3, at inlet pressures between 7" and 11" of water column (4 - 6 oz). Fuel below these specifications may cause improper engine operation and/or failure to deliver rated generator output. Size all fuel system plumbing to provide fuel flow as given in the Fuel Consumption Table on page 13, at a minimum pressure of 7" water column (4 oz).
After completing external supply connections, verify proper positioning of the flexible engine supply hose on the fuel pressure regulator output, as shown in Fig F.
The factory default position is for natural gas (NG), requiring a change for liquefied propane vapor (LPG) operation. If the fuel hose is not in the proper position, move it to the tee branch labeled LPG, making sure the brass cap is placed securely on the opposite branch. With fuel supply attached and the flexible engine supply hose on the proper branch of the regulator output, the fuel hookup is complete. The generator is supplied with a fixed orifice tuned to provide proper fuel flow and no further adjustment of the fuel system is possible or required.
FIG. F
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