Full Product Manual

TP-7092 4/23 17
Section 1. Descriptions and Service Views
1.1 Introduction
The generator set specification sheets provide specific generator and engine information. Refer to the spec sheet for data not
supplied in this manual. Consult the generator set service manual, engine operation manual, and engine service manual for
additional specifications. Obtain copies of the latest spec sheets, manuals, diagrams, and drawings from your local dealer.
1.2 Engine
The generator set has a four-cycle, twin cylinder, air-cooled Kohler
®
engine. The engine operates on clean-burning natural gas
or LPG. Engine features include:
• Efficient overhead valve design and full pressure lubrication for maximum power, torque, and reliability under all
operating conditions.
• Dependable, maintenance-free electronic ignition.
• Precision-formulated cast iron construction of parts subjected to the most wear and tear.
• Field-convertible multi-fuel systems that allow fuel changeover from natural gas to LPG (and vice-versa) while
maintaining emission certification.
• Digital spark advance optimizes ignition timing for the selected fuel.
1.3 Alternator
The generator uses Kohler’s unique PowerBoost™ voltage regulation system, which provides instant response to load changes.
PowerBoost™ ensures reliable motor starting and consistent voltage levels. PowerBoost™ utilizes a voltage excitation system
that employs a winding independent of the main output windings to provide excitation voltage.
1.4 Generator Set Enclosure
The generator set is housed in an aluminum enclosure with our fade-, scratch-, and corrosion-resistant Kohler
®
Power Armor
™
automotive-grade textured cashmere finish. The enclosure has a hinged, locking roof that allows easy access to the generator
set controller when required, but locks securely to prevent unauthorized access.
To open the roof, insert the key provided with the enclosure and turn counterclockwise ¼ turn. Then just raise the roof. The roof
stays open until you are ready to close it.
Be sure to close and lock the enclosure, and keep the key in a secure location.
1.5 Transfer Switch
The RDC2 controller is designed to interface with and control the Kohler Model RXT Automatic Transfer Switch (ATS).
If the power system uses a different model transfer switch, the RDC2 controller will not control the transfer switch. An ATS other
than the Model RXT must be equipped with a transfer switch controller and engine start contacts that connect to the remote
engine start terminals on the generator set.