Kohler 12RES

Section 1 Specifications and Features
1.1 Specifications
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
distributor/dealer.
1.2 Generator
The generator uses Kohler's unique PowerBoosV"
voltage regulation system, which provides instant
response to load changes.
PowerBoost TM ensures reliable motor starting and
consistent voltage levels. PowerBoosV" utilizes a
voltage excitation system that employs a winding
independent of the main output windings to provide
excitation voltage.
1.3 Engine
The generator set has a four-cycle, twin cylinder, air-
cooled Kohler _ engine. The engine operates on
clean-burning natural gas or propane (LP) vapor.
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 LP vapor (and
vice-versa) while maintaining CARB emission
certification.
• Digital spark-advance module (DSAM) optimizes
ignition timing for the selected fuel (12RES).
1.4 Advanced Digital Control
The generator set is equipped with the Kohler ®
Advanced Digital Control (ADC 2100). Controller
features include the following:
• Compact controller
• Integrally mounted to the generator set
• LED display:
• Runtime hours
• Crank cycle status
• Diagnostics
• LED display communicates faults:
• Auxiliary fault
• High battery voltage
• High engine temperature
• Low battery voltage
• Low oil pressure
• Overcrank safety
• Overspeed
• Overfrequency
• Overvoltage
• Underfrequency
• Undervoltage
• Membrane keypad for configuration and adjustment
• Password-protected user access to menus
• Voltage, gain, and speed adjustment
• System configuration (system voltage, phase,
and frequency settings, battery voltage, and
generator set model)
• Master control switch: Run/Off-Reset/Auto
Remote two-wire start!stop capability
Superior electronics protection from corrosion and
vibration
• Potted electronics
• Sealed connections
Digital isochronous governor to maintain
steady-state speed at all loads
Digital voltage regulation: -+1.5% RMS no-load to
full-load
• Automatic start for programmed cranking cycle
TP-6195 1/04 Section 1 Specifications and Features 1