Kohler 20--2800 kW manual IV Safety Precautions and Instructions TP-5700 7/93

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WARNING

Hazardous voltage.

Backfeed to the utility system can cause property damage, severe injury, or death.

If the generator set is used for standby power, install an automatic transfer switch to prevent inadvertent interconnection of standby and normal sources of supply.

Grounding electrical equipment. Hazardous voltage can cause severe injury or death. Electrocution is possible whenever electricity is present. Open the main circuit breakers of all power sources before servicing the equipment. Configure the installation to electrically ground the generator set, transfer switch, and related equipment and electrical circuits to comply with applicable codes

and standards. Never contact electrical leads or appliances when standing in water or on wet ground because these conditions increase the risk of electrocution.

Installing the battery charger. Hazardous voltage can cause

severe injury or death. An ungrounded battery charger may cause electrical shock. Connect the battery charger enclosure to the ground of a permanent wiring system. As an alternative, install an equipment grounding conductor with circuit conductors and connect it to the equipment grounding terminal or the lead on the battery charger. Install the battery charger as prescribed in the equipment manual. Install the battery charger in compliance with local codes and ordinances.

Connecting the battery and the battery charger. Hazardous voltage can cause severe injury or death. Reconnect the battery correctly, positive to positive and negative to negative, to avoid electrical shock and damage to the battery charger and

battery(ies). Have a qualified electrician install the battery(ies).

Servicing the day tank. Hazardous voltage can cause severe injury or death. Service the day tank electrical control module (ECM) as prescribed in the equipment manual. Disconnect the power to the day tank before servicing. Press the day tank ECM OFF pushbutton to disconnect the power. Notice that line voltage is still present within the ECM when the POWER ON light is lit. Ensure that the generator set and day tank are electrically grounded. Do not operate the day tank when standing in water or on wet ground because these conditions increase the risk of electrocution.

Short circuits. Hazardous voltage/current can cause severe injury or death. Short circuits can cause bodily injury and/or equipment damage. Do not contact electrical connections with tools or jewelry while making adjustments or repairs. Remove wristwatch, rings, and jewelry before servicing the equipment.

Engine block heater. Hazardous voltage can cause severe injury or death. The engine block heater can cause electrical shock. Remove the engine block heater plug from the electrical outlet before working on the block heater electrical connections.

Electrical backfeed to the utility. Hazardous backfeed voltage can cause severe injury or death. Install a transfer switch in standby power installations to prevent the connection of standby and other sources of power. Electrical backfeed into a utility electrical system can cause serious injury or death to utility personnel working on power lines.

Installing accessories to the transformer assembly. Hazardous voltage can cause severe injury or death. To prevent electrical shock disconnect the harness plug before installing accessories that will be connected to transformer assembly primary terminals 76, 77, 78, and 79. Terminals are at line voltage. (Models with E33+, S340, S340+, 340, R340, and R33 controls only)

Installing accessories to the transformer assembly. Hazardous voltage can cause severe injury or death. To prevent electrical shock disconnect the harness plug before installing accessories that will be connected to the transformer assembly primary terminals on microprocessor logic models. Terminals are at line voltage.

Making line or auxiliary connections. Hazardous voltage can cause severe injury or death. To prevent electrical shock deenergize the normal power source before making any line or auxiliary connections.

Servicing the transfer switch. Hazardous voltage can cause severe injury or death. Deenergize all power sources before servicing. Open the main circuit breakers of all transfer switch power sources and disable all generator sets as follows: (1) Move all generator set master controller switches to the OFF position. (2) Disconnect power to all battery chargers. (3) Disconnect all battery cables, negative (--) leads first. Reconnect negative (--) leads last when reconnecting the battery cables after servicing. Follow these precautions to prevent the starting of generator sets by an automatic transfer switch, remote start/stop switch, or engine start command from a remote computer. Before servicing any components inside the enclosure: (1) Remove rings, wristwatch, and jewelry. (2) Stand on a dry, approved electrically insulated mat. (3) Test circuits with a voltmeter to verify that they are deenergized.

IV Safety Precautions and Instructions

TP-5700 7/93

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Contents 20-2800 kW ModelsProduct Identification Information California PropositionTable of Contents Table of Contents TP-5700 7/93 Accidental Starting Safety Precautions and InstructionsBattery Fuel System Engine Backfire/Flash FireExhaust System Hazardous Noise Hazardous Voltage/ Electrical ShockIV Safety Precautions and Instructions TP-5700 7/93 Moving Parts Heavy EquipmentHot Parts VI Safety Precautions and Instructions TP-5700 7/93 Service Assistance IntroductionPage General Typical Stationary-Duty Generator Set Installation Load and Transport Lifting the Generator SetGenerator Set with Lifting Bars in Skid Weather Housing Transporting the Generator SetLoad and Transport TP-5700 7/93 Location Factors WeightLocation Mounting Mounting Surface DetailVibration Isolation Neoprene-Type Integral Vibration IsolatorsLocation TP-5700 7/93 Air Requirements GeneralAir-Cooled Generators Stationary Louvers for Air InletForced Air Standard Forced-Air Cooling SystemAir-VacCooling System Air-Vac Cooling SystemAir Vent Cooling System using an Air-Cooled Generator Set Air VentLiquid-Cooled Models Unit-Mounted Radiator CoolingRemote Radiator Cooling Air Control LouversCity Water Cooling Cooling Tower12 Cooling Tower System Block Heaters Recommended CoolantExhaust System Exhaust System, Side Inlet SilencerPiping Flexible SectionCondensation Trap Double-Sleeve Thimbles Double-Sleeved Thimbles and Rain CapExhaust System TP-5700 7/93 Fuel Systems Diesel Fuel SystemsMain Fuel Tank Fuel LinesTransfer Tanks Diesel Fuel System with Overhead Main Tank and Transfer TankAuxiliary Fuel Pumps Gasoline Fuel Systems Natural or LP Gas Fuel Systems Typical LP Gas Vapor-Withdrawal SystemNatural Gas and LP Gas System, Liquid Withdrawal Fuel Regulators Flexible ConnectorGas Piping LP Gas Fuel Characteristics Vapor Withdrawal SystemsLiquid Withdrawal Systems Dual Systems Natural and LP GasNatural Gas Combination Gas-GasolineElectrical Requirements BatteriesElectrical Connections Load Lead ConnectionsTerminal Connector Torque 124.3 1100 67.8 600Automatic Transfer Switches Audiovisual AlarmControl Connections Remote AnnunciatorDry Contact Kit Remote Emergency Stop SwitchWiring Generator Junction BOX Appendix a Abbreviations AnsiLCB Page 1993, 2001, 2003 by Kohler Co. All rights reserved

20--2800 kW specifications

The Kohler 20-2800 kW generator series is renowned for its exceptional performance and reliability, making it a prime choice for various industrial and commercial applications. Designed for continuous and backup power generation, these generators are capable of providing robust energy solutions for facilities that demand high capacity and efficiency.

One of the standout features of the Kohler 20-2800 kW series is its advanced technology integration. Kohler utilizes the latest in digital control systems, ensuring precise monitoring and management of generator functions. The generator's control panel provides real-time data on power output, fuel consumption, and operating conditions, allowing operators to make informed decisions quickly.

In terms of fuel efficiency, the Kohler generators are engineered to minimize operational costs while maximizing performance. The series includes options for both diesel and natural gas, offering flexibility depending on user requirements and availability. The efficient fuel consumption not only supports cost savings but also aligns with environmental standards, reducing emissions during operation.

Durability and reliability are key characteristics of this generator series. Kohler buildings are constructed using high-quality materials and components that withstand harsh environmental conditions. System redundancy features and robust cooling systems ensure that the generators can operate continuously without failure, making them ideal for critical power needs.

The Kohler 20-2800 kW series also includes noise-reducing technology, making them suitable for installations in noise-sensitive environments. With options for acoustic enclosures, these generators comply with local noise regulations while delivering powerful performance.

Safety features are integrated into the generator design, including automatic shutdown systems for over-speed, low oil pressure, and high water temperature, ensuring that the equipment operates safely during emergencies.

The modular design of the Kohler 20-2800 kW allows for easy installation and maintenance. Access points for service and diagnostics are strategically placed for convenience, reducing downtime and improving efficiency in upkeep.

Overall, the Kohler 20-2800 kW generator series stands out as a dependable powerhouse, combining advanced technology, fuel efficiency, durability, and safety features to meet the demands of various industries. Whether for data centers, manufacturing facilities, or large commercial buildings, Kohler's commitment to quality and innovation makes these generators an exemplary choice for reliable power generation.
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