Installation Guide

TP-6906 4/16 33Section 1 Installation Instructions
1.6.4 Fuel Conversion Procedures
The generator set is easily configurable for use with
either NG or LPG. System configuration for NG or LPG
requires a mechanical s etting on the fuel pressure
regulator and an electrical connection on the wiring
harness. These adjustments will ensure that the proper
fuel and spark timing are supplied to the engine.
Note: The fuel pressure regulator is factory preset for
NG. When using NG, no mechanical adjustment
is required.
1
1. Adjusting cap
Figure 1-20 Fuel Pressure Regulator
To set the regulator for LPG:
1. Push the adjusting cap to its upper stop and rotate
toward the LPG marking, release upward
pressure, and lock into place. Figure 1-20.
2. For LPG fuel only, use the quick-connect
adapters to c onnect wire N20 from the fuel
pressure regulator to wire 45 from the ECM wiring
harness. Figure 1-21.
To reset the regulator for NG:
Reverse the above procedure to reset for NG operation.
1. Push up on the adjusting cap and rotate toward the
NG marking. Release upward pressure, and lock
into place. Figure 1-20.
2. Disconnect wire N20 and wire 45. Figure 1-21.
GM92458
Figure 1-21 Fuel Type Connections
Converting the fuel will change the generator set rating.
See the generator set specification sheet for ratings with
natural gas and LPG. Order a new nameplate with the
updated rating and fuel information from an authorized
distributor/dealer, if necessary. Provide the following
information from the original nameplate:
D Model Number D kVA
D Spec Number D Amps
D Serial Number D Volts
D Fuel (original and new) D Hz
D kW
Attach the new nameplate over the old one. Do NOT
cover the UL listing information on the old nameplate.