Installation Guide

17
For Natural Gas fuel pressure levels of 3.5 - 5" W.C., replace
the regulator assembly with service kit 6331-00 (available at
your local service dealer).
Power Loss
Air density is less at high altitudes, resulting in less available
engine power. Engine power will decrease by 3.5% for each
1,000 feet (300 m) above sea level and by 1% for each
10° F (5.6°C) above 77°F (25°C). Generators located in
these conditions must have their transfer switch adjusted
appropriately for this power decrease. See your Automatic
Transfer Switch manual on how to adjust for the power
decrease.
The Gaseous Fuel System
Fuel Pipe Sizing
NFPA 54 and 58 are common resources. The installer must
consider the specific gravity of gas, compensate for a nominal
amount of restriction from bends and fittings, and refer to
federal and local codes for guidance.
Fuel Conversion
The engine of your home generator system is factory
Calibrated and set to operate on natural gas (NG). It may also
be operated on liquefied petroleum (LP) vapor.

NOTICE Units are set to NG at the factory.
To convert to either fuel, follow these steps:
1. Put the key into the lock of the front panel. Lightly push
down on the roof above the lock, and then turn the key
one quarter turn clockwise.
2. Lift the roof to the open position.
3. Push the control panel OFF button.
4. Remove the battery panel.
5. Remove the 15 Amp fuse.
6. Remove utility power to generator to de-energize the
battery charger.
7. Disconnect the negative (-) cable at the battery.
8. Remove the rear panel.
9. Find the fuel selector switch (A) on top of the fuel
regulator (B).
10. Set Fuel Selector:
A. Remove cap (C) from the Fuel Select Valve by sliding
it upward.
B. LP or NG is selected by using the cap (C) as a tool to
rotate the indicator to the LP or NG mark (the image
below shows the FSV set to LP fuel).
C. Install the cap (C) after fuel selection is complete.
11. Once the fuel selection is complete, apply a drop of
cyanoacrylate (super) glue on the Fuel Select Cap.
12. Connect the negative (-) cable at the battery.
13. Install the rear panel.
14. Install 15-amp fuse.
15. Install the battery panel.
16. Push and hold the CONFIG button to access the
configuration menu.
17. Push SELECT to edit the items in the configuration menu.
18. To setup the generators control board for LP fuel you will
need to enter the Configuration Menu by using the Dealer
Password, which is available on the Power Portal.
19. Navigate to “SELECT PROFILE” and press select on the
correct profile for the generator. For example “20KW_LP”
for operating a 20kW unit running on LPfuel.
Note:Selecting a profile that is not intended for the generator
can cause the generator to run erratically and could result in
damage.
20. To Save the new fuel setting, press and hold the STOP/
CONFIG button until “Saving Settings…” is displayed.
21. For Additional information on the operation of the
generator controller please refer to the "Operation
Not for
Reproduction