Fuel Conversion, Original Fuel System, 20Rca/Rcal - Kohler 14RCA Installation Manual

2.2.2 Fuel Conversion, Original Fuel
System, 20RCA/RCAL
For LPG fuel, an orifice is used in the fuel line. The unit is
typically shipped set up for natural gas, with the loose
orifice tied near the fuel solenoid valve. To convert to
LPG, install the LPG orifice as described below. See
Figure 2-8 for the fuel system component locations.
Note: The generator set harness may contain a pair of
ignition timing leads near the fuel solenoid valve.
Connecting or disconnecting these leads has no
effect on the 20RCA/RCAL operation.
Procedure to Convert from NG to LPG, 20RCA/L
1. Press the OFF button on the generator set
controller.
2. Disconnect utility power to the generator set (open
the corresponding circuit breaker in the distribution
panel).
3. Disconnect the generator set engine starting
battery, negative (- ) lead first.
4. Turn off the fuel supply.
5. Remove the hose clamp and fuel hose from the
hose fitting. See Figure 2-8.
6. Insert the LPG orifice into the hose fitting. See
Figure 2-8.
7. Slide the hose onto the hose fitting and secure it
with the clamp.
8. Connect and turn on the new fuel supply.
9. Reconnect the generator set engine starting
battery leads, negative (- ) lead last.
10. Reconnect utility power to the generator set.
11. Start the generator set by pressing the RUN button
on the generator set controller.
12. Check for leaks using a gas leak detector.
13. Run the generator set and check the operation.
14. Press the OFF button to shut down the generator
set.
20 Section 2 Fuel
Conversion from LPG to Natural Gas, 20RCA/L
To convert from LPG to natural gas, repeat the steps
above to remove the LPG fuel orifice.
1 2
1. Fuel orifice for LPG
2. Hose fitting
3. Fuel regulator
4. Fuel solenoid valve (with coil)
Figure 2-8 Fuel Regulator and LPG Orifice,
20RCA/RCAL
3
4
GM101740
TP-7091 2/21