Fuel Conversion, 17/18 Kw - Kohler 18TRES Installation Manual

10. For the 12 kW: Disconnect the DSAI leads for LP.
See Figure 1-23 and Figure 1-24.
Fuel
Natural Gas
LP
Figure 1-23 DSAI Connection,12/17/18 kW Models
1. DSAI leads (12 kW model only)
Figure 1-24 Digital Spark Advance Module Leads
(located in generator set air intake area)
11. Connect and turn on the new fuel supply.
12. Check that the generator set master switch is in the
OFF position.
13. Reconnect the generator set engine starting
battery leads, negative (--) lead last.
14. Reconnect power to the battery charger.
15. Start the generator set by moving the generator set
master switch to the RUN position.
16. Check for leaks using a gas leak detector.
17. Run the generator set and check the operation.
Use the controller to adjust the output and stability if
necessary. See Section 1.14 for instructions.
18. Move the generator set master switch to the OFF/
RESET position to shut down the generator set.
To convert from LP vapor to natural gas, follow the same
fuel conversion procedure, moving the hose fitting to the
natural gas port and plugging the LP port. For the 12 kW
model, connect the DSAI leads for natural gas. See
Figure 1-23 and Figure 1-24.
26 Section 1 Installation
DSAI Leads
Connect
Disconnect
tp6195
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1.7.2

Fuel Conversion, 17/18 kW

For LP vapor 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 line. To convert to LP
vapor, install the orifice and disconnect the spark
advance leads as described below. See Figure 1-25 for
the fuel system component locations.
Fuel System Detail
1. Hose fitting (LP orifice fits inside; see Figure 1-26)
2. Regulator
3. Fuel valve
4. Fuel inlet, 1/2 in. NPT female
5. Fuel hose with clamp
6. DSAI connector location (see Figure 1-27)
Figure 1-25 Fuel System Components, 17/18 kW
1
2
3
4
2
5
6
3
GM51561A-D
TP-6514 9/09
4