Automatic Stop

1.When the utility source is restored, the Emergency-to-Normal time delay starts.

2.When the Emergency-to-Normal time delay expires, the load is transferred to the utility.

3.The generator set stops.

2.4.7Automatic Operation with Model RDT or RSB Transfer Switches

If a Kohler Model RDT or RSB transfer switch is used, the engine start contacts from the ATS must be connected to engine start leads 3 and 4 on the generator set.

The RDC2 generator set controller must be in AUTO mode to respond to remote start/stop signals from an ATS or remote switch. Press the AUTO button on the RDC2 controller to put the generator set into automatic mode.

Automatic Start

The engine start contacts on the ATS close to signal the generator set to start, and remain closed while the generator set is running.

Automatic Stop

The engine start contacts on the ATS open to signal the generator set to stop.

2.5 Exercise

The RDC2 controller can be set to automatically run the generator set at the same time and day every week or every other week. Exercising the generator set every week or every two weeks is required in order to keep the engine and alternator in good operating condition.

Three exercise modes are available: unloaded cycle, unloaded full speed, and loaded full speed. See Sections 2.5.1 through 2.5.3 for information about the exercise modes. A loaded exercise can be set at the RDC2 controller only if a Model RXT transfer switch is connected.

Note: With the RDT and RSB transfer switches, it is possible to have two exercise settings (one unloaded exercise set at the generator set controller, and another exercise set at the ATS controller). If the exercise times overlap, the ATS exercise setting takes priority.

If a Model RDT or RSB transfer switch is used, refer to the instructions provided with the transfer switch to set a loaded exercise at the ATS, if desired.

2.5.1Unloaded Cycle Exercise with Complete System Diagnostics

An unloaded cycle exercise runs the generator set without signalling the transfer switch to transfer the electrical load from the utility source to the generator set. The Unloaded Cycle exercise with diagnostics is the recommended exercise mode and is the factory-default exercise setting.

The Unloaded Cycle exercise runs the engine for 20 minutes in the cycle shown in Figure 2-1 and described below.

DRuns at reduced speed for 10 minutes to warm up and exercise the engine.

D Ramps up and runs at full speed for 3 minutes. Engine diagnostics are performed during this full-speed portion of the cycle, which provides the best test of engine and alternator power backup capability. Diagnostic tests at full speed can identify potential problems with the power output and alert the operator before an emergency event.

D Ramps down and runs at reduced speed for 5 minutes to cool down the engine before shutting down automatically.

Speed, RPM

 

3 min.

 

 

1 min.

1 min.

Engine

10 min.

 

5 min.

 

 

 

Engine

Full-Speed

Cooldown

 

Exercise

Diagnostics

 

Figure 2-1Unloaded Exercise Cycle

System Diagnostics

During the unloaded cycle exercise, the controller monitors the following data. The controller display indicates an unloaded exercise run during the diagnostics, unless a fault is detected as described below.

TP-6905 6/14

Section 2 Generator Set Operation 17

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Kohler 24RCL Exercise, Automatic Operation with Model RDT or RSB Transfer Switches, Automatic Stop, System Diagnostics
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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.

One of the standout features of the Kohler 24RCL is its quiet operation. With a noise level significantly lower than that of traditional generators, it allows homeowners to maintain their comfort without the disruptive sounds often associated with backup power systems. This is particularly important in residential neighborhoods where maintaining peace and quiet is essential.

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.

Another key technology in the 24RCL is its integrated transfer switch, which automatically detects power outages and switches the home’s electrical supply to the generator. This seamless transition ensures that there is no disruption in power, making it an ideal solution for critical loads such as refrigerators, medical equipment, and security systems. The generator’s advanced control system allows for easy monitoring and maintenance, providing users with peace of mind whenever they rely on their backup power.

The Kohler 24RCL boasts a weather-resistant enclosure, designed to withstand the elements and provide protection against rain, snow, and harsh winds. This rugged construction also contributes to the longevity of the unit, ensuring that it can perform reliably year after year.

Sustainability is another driving factor in the design of the Kohler 24RCL. The generator features efficient fuel consumption, which not only helps to reduce operating costs but also minimizes the environmental impact. With many homeowners increasingly focused on eco-friendly solutions, the 24RCL fits seamlessly into a sustainable lifestyle.

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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