Fuel Conversion Procedures - Kohler 24RCL Manual

6.7.3

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 setting 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 6-13 Fuel Pressure Regulator
To set the regulator for LPG:
1. Push the adjusting cap to its upper stop and rotate
clockwise, release upward pressure, and lock into
place. See Figure 6-13.
2. For LPG fuel only, use the quick-connect adapters
to connect wire N20 from the fuel pressure
regulator to wire 45 from the ECM wiring harness.
See Figure 6-14.
To reset the regulator for NG:
Reverse the above procedure to reset for NG operation.
1. Push up on the adjusting cap and rotate
counterclockwise. Release upward pressure, and
lock into place. See Figure 6-13.
2. Disconnect wire N20 and wire 45. See Figure 6-14.
TP-6907 5/16
Figure 6-14 Fuel Type Connections
Nameplate
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 Spec Number
D Serial Number
D Fuel (original and new)
D kW
Fuel Type Setting
Change the fuel type setting on the RDC2 controller to
match the new fuel type. The fuel type setting affects the
generator set power rating setting in the controller,
which in turn affects the load add and load shed settings
for the optional load management device.
Use the RDC2 controller menus or a personal computer
(laptop) with Kohler SiteTech software to change the fuel
type. On controllers with firmware version 4.5 or higher,
the fuel type is located in the Genset System menu. In
SiteTech, the fuel type is located in the Genset System
Configuration group.
Section 6 Component Testing and Adjustment
GM92458
D kVA
D Amps
D Volts
D Hz
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