Kohler 12RES Instrukcja instalacji - Strona 15
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1.7 Fuel Conversion
The multi-fuel system allows conversion from natural
gas to LPG (or vice-versa) in the field while maintaining
emissions-standard compliance. A Kohler authorized
distributor/dealer can convert the fuel system.
A revised fuel system was implemented in February,
2021. The fuel system can be identified by comparing
the regulator and solenoid valve with the illustrations in
the following sections.
The original fuel system uses fuel orifice fittings to
control the fuel flow for natural gas (NG) or LPG fuels.
The original system uses a fuel regulator and a separate
fuel solenoid valve. See Section 1.7.1 for illustrations
and instructions to convert the fuel on generator sets
with the original design.
The revised fuel system uses a fuel regulator with a fuel
selector valve and an integrated fuel solenoid valve.
See Section 1.7.2 for illustrations and instructions to
convert the fuel on generator sets with the revised fuel
system.
Rating Change
Converting the fuel will change the generator set rating.
See the generator set specification sheet for ratings with
natural gas and LP. Order a new nameplate with the
updated rating and fuel information from a Kohler
authorized distributor/dealer, if necessary. Provide the
following information from the original nameplate:
Model Number
Spec Number
Serial Number
Fuel (original and new)
kW
Attach the new nameplate over the old one. Do NOT
cover the UL listing information on the old nameplate.
WARNING
Accidental starting.
Can cause severe injury or death.
Disconnect the battery cables before
working
on
Remove the negative (- ) lead first
when disconnecting the battery.
Reconnect the negative (- ) lead last
when reconnecting the battery.
TP-6967 2/21
kVA
Amps
Volts
Hz
the
generator
set.
Disabling the generator set.
cause severe injury or death.
generator set or equipment connected to the set, disable the
generator set as follows: (1) Move the generator set master
switch to the OFF position. (2) Disconnect the power to the
battery charger. (3) Remove the battery cables, negative (- )
lead first.
Reconnect the negative (- ) lead last when
reconnecting the battery. Follow these precautions to prevent
starting of the generator set by an automatic transfer switch,
remote start/stop switch, or engine start command from a
remote computer.
WARNING
Explosive fuel vapors.
Can cause severe injury or death.
Use extreme care when handling,
storing, and using fuels.
1.7.1
Fuel Conversion, Original Fuel
System
For natural gas and LPG fuel, orifice fittings are used in
the fuel line. See Figure 1-9. The natural gas orifice
fitting is silver in color and stamped NG. The LPG fitting
is gold in color and stamped LPG. The fittings are
threaded. A straight-blade screwdriver is required to
remove and replace the fittings.
NG
Figure 1-9 NG and LPG Fuel Orifice Fittings
The unit is typically shipped set up for natural gas, with
the LPG fitting tied to the fuel regulator. To convert to
LPG, remove the NG fitting and install the LPG fitting as
described below. See Figure 1-10 for the fuel system
component locations.
Accidental starting can
Before working on the
LPG
Section 1 Installation
15