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After completing GENERATOR PLACEMENT, proceed to
SECTION 5 — FUEL CONVERSION/GAS REQUIREMENTS/
Fuel Conversion/Gas Requirements/
Section 5
Connections
5.1 FUEL CONVERSION
The generator was confi gured for natural gas operation at the factory. Press and turn knob 180° to switch over to LP Vapor.
NOTE: The orange fuel conversion knob is located on the top of the fuel mixer on the V-twin engine and under the fuel mixer on the single
cylinder engine.
Press and turn the fuel knob towards the marked fuel source arrow until it stops. Fuel knob will rotate 180° and slide into the mixer body when
converting to LP.
FUEL KNOB LOCATIONS SHOWN FROM GENERATOR AIR BOX SIDE VIEW
11-20 kW GENERATORS
Figure 5.1 — Fuel Conversion Knob Location for Single and Twin Cylinder Generators
5.2 FUEL REQUIREMENTS AND RECOMMENDATIONS
With LP gas, use only the vapor withdrawal system. This type of system uses the vapors formed above the liquid fuel in the storage tank.
The unit will run on natural gas or LP gas, but it has been factory set to run on natural gas. Should the primary fuel need to be changed to LP gas,
the fuel system needs to be reconfi gured. See the Fuel Conversion section for instructions on converting the fuel system.
Recommended fuels should have a Btu content of at least 37.26 megajoules per cubic meter (1,000 Btus per cubic foot) for natural gas; or at least
93.15 megajoules per cubic meter (2,500 Btus per cubic foot) for LP gas. Ask the fuel supplier for the Btu content of the fuel.
Required fuel pressure for natural gas is 7-13mm mercury (3.5-7 in w.c.). Required fuel pressure for for liquid propane vapor is 19-22mm
mercury (10-12 in. w.c.). The primary regulator for the propane supply is NOT INCLUDED with the generator.
NOTE: All pipe sizing, construction and layout must comply with NFPA 54 for natural gas applications and NFPA 58 for liquid propane
applications. Once the generator is installed, verify that the fuel pressure NEVER drops below it's required fuel pressure rating. For fur-
ther information regarding NFPA requirements refer to their website at www.nfpa.org.
Step 4
CONNECTIONS
FUEL KNOB
ORANGE FUEL
CONVERSION KNOB
:
FUEL KNOB
8 kW GENERATOR
15
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