Kohler 24RCL manual Exercising the Generator Set, Generator Set Operation

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2.3 Exercising the Generator Set

Operate the generator set without load every week or every other week for 20 minutes. Perform all of the prestart checks before starting the exercise procedure. See Section 2.5 for instructions to set the automatic exerciser.

2.4 Generator Set Operation

2.4.1Local Starting and Stopping

Start: Press the RUN button to immediately start the generator set.

Stop: Press the OFF button. The engine stops.

Run the generator set with no load for at least 2 minutes to ensure adequate engine cooldown.

2.4.2Automatic Starting and Stopping

An automatic transfer switch monitors the utility power and signals the generator set to start when utility power is lost. The ATS then transfers the load to the generator set.

When utility power is restored, the transfer switch transfers the load back to utility, runs the generator set with no load to cool down the engine, and then stops the generator set engine. The electric fans continue to run for two minutes after the engine shuts down to evacuate the engine compartment.

2.4.3Remote Starting and Stopping

A remote switch connected to terminals 3 and 4 can be used to start and stop the generator set. Close the switch to start and run the generator set. Open the switch to stop the generator set.

Run the generator set with no load for at least 2 minutes to ensure adequate engine cooldown.

2.4.4Engine Start Crank Cycle

The controller attempts to start the generator set three times (three crank cycles, 15 seconds crank and 15 seconds off). If the generator set does not start in three attempts, the system shuts down on an overcrank fault. See Section 2.6.

Pressing the OFF button during the crank cycle stops the cranking. No other buttons are acknowledged during the crank cycle.

2.4.5Engine Cooldown

The engine cooldown time delay allows the engine to run after the loads have been removed.

The engine cooldown time delay is set to 5 minutes. The engine stops before the cooldown time delay expires if the temperature drops below the cooled-down temperature level, or if the temperature rises above the high limit during the cooldown cycle.

The electric fans continue to run for two minutes after the engine shuts down to evacuate the engine compartment.

If a transfer switch other than the Model RXT is used, an additional engine cooldown time delay may be programmed on the transfer switch. To allow the smart engine cooldown on the RDC2 controller to operate most efficiently, set the cooldown time on the transfer switch controller to zero or the minimum time allowed. Refer to the instructions provided with the transfer switch for more information.

2.4.6Automatic Operation with Model RXT Transfer Switch

The Model RXT transfer switch connects to the RDC2 controller through the ATS interface board on the transfer switch. Also see Section 2.7, Model RXT Transfer Switch Operation.

The RDC2 controller must be in AUTO mode for automatic transfer switch operation.

Automatic Start

The RDC2 controller receives utility source voltage sensing data from the Model RXT transfer switch.

1.If the utility source voltage falls below an acceptable level, the controller starts the engine start time delay.

2.If the utility source is not restored before the time delay expires, the generator set starts.

3.After the Normal-to-Emergency time delay, the ATS is signaled to transfer the load to the emergency source.

16 Section 2 Generator Set Operation

TP-6905 6/14

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Contents RDC2 TP-6905 6/14Accessory Number Accessory Description Product Identification InformationController Identification Generator Set Identification NumbersTable of Contents Troubleshooting Scheduled MaintenanceAppendix a Abbreviations Safety Precautions and Instructions BatteryAccidental Starting Accidental starting Can cause severe injury or deathExhaust System Engine Backfire/Flash FireFuel System Hazardous Noise Hazardous noise Can cause hearing lossHazardous voltage Will cause severe injury or death Airborne particles Can cause severe injury or blind- nessHot Parts Hot coolant and steam Can cause severe injury or deathIntroduction NameplateList of Related Literature Literature Type Part NumberService Assistance Service Assistance TP-6905 6/14 Service Views Cooling System DetailService Views TP-6905 6/14 Prestart Checklist Generator Set OperationOperating Area Keep the generator set area clear. Maintain at leastExercising the Generator Set Generator Set OperationAutomatic Operation with Model RDT or RSB Transfer Switches Unloaded Cycle Exercise with Complete System DiagnosticsSystem Diagnostics ExercisePower Failure During Exercise Exerciser ResetSetting the Exerciser at Power-up Unloaded Full-Speed ExerciseChanging the Exercise Setting Procedure to Change the Exercise Setting2RDC2 Main Menu 3Procedure to Set the Exerciser Faults ATS Communication ErrorsResetting the Controller after a Fault Shutdown Procedure to Reset the Controller after a Fault ShutdownFault RDC2 Fault OnCuer Condition Check Plus ATSECM Air filter 5Controller Fault Messages Model RXT Transfer Switch Operation Procedure to View Event HistorySetting Event LogTime Delays ATS Load Control Relay Time DelayATS Control Sequence of Operation Normal Source FailsControls and Indicators RDC2 Controller OperationController Keypad LED Indicators ButtonButton Function LED OperationLCD Display Active AlertController Power Battery ChargingChanging Settings Procedure to Change SettingsChanging Settings on the RDC2 Controller 6Changing SettingsController Menus Main MenuOverview Menu Engine Metering MenuGenerator Metering Menu Voltage CalibrationGenerator Set Information Menu Genset Run Time MenuVoltage Regulator VR Voltage Adjust Setting the ExerciserAdjusting the Display Contrast Genset System MenuATS Status Menu Screens on this page do not appearATS Configuration Menu Changing ATS Configuration SettingsDate and Time Menu Date and Time 02Dec2014 1234pm Time Format 12hr24hrNetworking Information Menus 17Networking Information MenuNetworking Status Submenu DhcpNetworking Configuration Submenu OnCue Plus Password OnCue Plus PasswordRbus Information Submenu 20RBUS Information SubmenuRemote Devices Submenu 21Remote Devices SubmenuProgrammable Interface Module PIM Menus Load Control Menus 23Load Control Status MenuScheduled Maintenance General MaintenanceScheduled Maintenance TP-6905 6/14 Service Schedule Oil Specifications Lubrication SystemOil Check Oil AdditionsReset the maintenance timer on the RDC2 Replace the oil filterStop the generator set. Check the oil level. Add Check for leaksAir Cleaner Air Cleaner Service ProcedureChecking and Filling Coolant Cooling SystemExhaust System Inspection Points Flushing and Cleaning Flushing and Cleaning ProcedureCooling System Inspection Draining Cooling SystemIgnition System Model Spark plug gap511 Battery Storage Procedure Troubleshooting Fault MessagesIntroduction USB PortGenerator Set Troubleshooting Problem Possible Cause Corrective ActionController Troubleshooting 2RDC2 Troubleshooting ChartTroubleshooting TP-6905 6/14 Appendix a Abbreviations AnsiLCB Page By Kohler Co. All rights reserved

24RCL specifications

The Kohler 24RCL is a powerful, compact generator designed to provide reliable backup power for residential applications. Equipped with a robust 24 kW output, this generator is engineered for both efficiency and durability, making it an excellent choice for homeowners looking to safeguard their property against outages.

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The generator is powered by a liquid-cooled Kohler engine, which ensures consistent performance and longevity. Liquid-cooled engines are known for their ability to provide better thermal management, thereby extending the life of the engine while also improving efficiency. Moreover, the Kohler 24RCL utilizes a proven design that enables quick starts and reliable operation, even in the most challenging conditions.

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Overall, the Kohler 24RCL is a powerful, efficient, and quiet backup generator that combines advanced technology with rugged reliability. Its features make it a standout choice for homeowners seeking a dependable power solution that prioritizes convenience, safety, and sustainability. Whether facing severe weather or unexpected outages, the Kohler 24RCL ensures that homes remain powered and protected.
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