Kohler 14RESL Installation Manual - Page 20

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1.7.1

Fuel Conversion, 14RES/RESL

Two fuel connections on the fuel block allow field-

conversion between natural gas and LP vapor. The fuel

metering valves are factory-set and sealed to comply

with applicable emission standards and to provide the

best possible hot and cold starting.

Note: Do not adjust the factory-sealed fuel-metering

adjustments on the fuel block. Changing the fuel-

metering adjustments may violate federal or state

laws.

Use the following procedure to convert from natural gas

(NG) to LP vapor. The procedure includes moving the

fuel connection from the natural gas to the LP port,

plugging the natural gas port, and disconnecting the

leads for the digital spark advance ignition (DSAI). See

Figure 1-11 or Figure 1-12 for the fuel system

component locations.

Procedure to convert from NG to LP, 14RES/RESL

1. Press the OFF button on the generator set

controller and remove the F3 fuse (located in the

service access area).

2. Disconnect the power to the battery charger.

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 in the fuel block. See Figure 1-13.

6. Remove the hose fitting from the natural gas outlet

port in the fuel block. See Figure 1-13.

7. Remove the plug from the LP port in the fuel block.

See Figure 1-13.

8. Clean the plug with a dry cloth or brush, apply fresh

pipe sealant, and install the plug into the natural

gas outlet port.

9. Clean the hose fitting with a dry cloth or brush,

apply fresh pipe sealant to the threads, and install

the fitting into the LP port.

Note: Do not adjust the fuel metering valves.

10. Slide the hose onto the hose fitting and secure it

with the clamp.

11. Disconnect the DSAI leads for LP. The DSAI leads

are located near the fuel solenoid valve. See

Figure 1-11 or Figure 1-12.

12. Connect and turn on the new fuel supply.

Section 1 Installation

1. Fuel block

2. Fuel metering valves—factory-sealed, do not adjust

3. Fuel inlet, 1/2 in. NPT

4. Hose fitting

5. Plug

Figure 1-13 Fuel Block, 14RES/RESL

13. Reconnect the generator set engine starting

battery leads, negative (--) lead last.

14. Reconnect power to the battery charger.

15. Install the F3 fuse and start the generator set by

pressing the RUN button on the generator set

controller.

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 1.15 for instructions.

18. Press the OFF button to to shut down the generator

set.

Conversion from LP to Natural Gas

To convert from LP vapor to natural gas, follow the fuel

conversion procedure above, moving the hose fitting to

the natural gas port and plugging the LP port. Connect

the DSAI leads for natural gas. See Figure 1-14.

Fuel

Natural Gas

Figure 1-14 DSAI Connection

Natural gas

setup shown

GM66563

DSAI Leads 65 and N

Connect lead 65 to N

Disconnect

TP-6733 8/11