3.3 Controller Power

The RDC2 controller is powered by the generator set engine starting battery and the built-in battery charger.

Note: To disconnect controller power, disconnect the battery and the utility power to the generator set.

If controller power is disconnected and reconnected, you will be prompted to set the time, date, and exerciser. The first setting will flash. Press the Up and Down arrow buttons to change the setting. Press Select to save the setting and move on to the next. Repeat until all settings are saved and the controller returns to the main menu. See Section 3.5 for more detailed instructions to change settings on the RDC2. See Section 2.5 for more detailed instructions to set the exerciser or change the exercise settings.

3.4 Battery Charging

The controller includes a built-in battery charger to maintain the engine starting battery. The RDC2 controller monitors the battery voltage and provides a constant 14 ±2% VDC voltage and maximum 2.5 amps to charge the battery.

The installer must connect 120 VAC/60Hz utility power provided from the building on a breaker-protected circuit for the built-in battery charger. See the Installation Manual for instructions to connect the utility power for the battery charger.

3.5 Changing Settings

Some settings can be changed from the controller keypad. The controller settings and generator set output are factory-set and should not require field adjustment under normal circumstances. Check and adjust the settings and/or output when:

DThe controller has been replaced.

D The voltage requires adjustment for a particular application.

DTroubleshooting generator set problems.

Have controller setup and adjustment performed only by an authorized Kohler distributor/dealer or authorized representative.

The following procedure explains how to change settings. See Figure 3-6 for an example using the Date and Time settings.

Note: Use caution when navigating the controller menus and changing the settings. In some menus, pressing the Select button can enable editing of the controller settings. Changing some settings to incorrect values can adversely affect generator set operation or render the unit inoperable.

Procedure to Change Settings

1.Press the Select button to enter the main menu.

2.Press the down arrow button until the desired menu is displayed. The Date and Time menu is used for the example in Figure 3-6.

3.Press the Select button to enter the selected menu. See Figure 3-6.

4.Press the down arrow button to step through the parameters in the selected menu.

5.To change a setting, press the Select button. The selected setting flashes.

6.Press the up or down arrow buttons to increase or decrease the setting.

7.When the desired setting is shown, press Select. The value stops flashing. If there are additional adjustable settings on the screen, the next setting flashes. For example, in the date menu, the year, month, and day can be adjusted.

8.Repeat steps 5 through 7 for each setting on the screen.

9.Press the down arrow to step to the next screen.

10.To exit, press the down arrow button until Return is displayed. Press the Select button to exit the menu.

11.Press the AUTO or OFF button to exit the main menu.

Note: If no buttons are pushed, the controller exits the menus and returns to the generator set status display after 5 minutes.

30 Section 3 RDC2 Controller Operation

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Kohler 38RCL, 48RCL, 60RCL manual Controller Power, Battery Charging, Changing Settings, Procedure to Change Settings
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38RCL, 48RCL, 60RCL specifications

The Kohler RCL series of generators, particularly the 60RCL, 48RCL, and 38RCL models, represents a premium choice for those seeking reliable power solutions for residential and light commercial applications. Each model is tailored to meet diverse power needs, ensuring uninterrupted electricity supply during outages.

The 60RCL is engineered for maximum performance, offering 60 kW of power. This model is ideal for larger homes or small businesses that require dependable backup power. Its powerful Kohler engine is designed to deliver a quiet, smooth performance, while the advanced sound-dampening features keep noise levels to a minimum. The 48RCL offers a slightly lower output at 48 kW, making it suitable for medium-sized homes. Its compact design allows for flexible installation options, whether it’s outdoors or in a utility area, while still providing robust power during critical times.

The 38RCL, while the smallest of the series with 38 kW output, is perfect for homes that need a reliable backup generator without the bulk. Its streamlined design does not compromise on performance, making it an excellent choice for energy-efficient homes. All models in the RCL series come equipped with Kohler's Command Pro commercial-grade engine, ensuring longevity and reliability even in the harshest conditions.

A standout feature of the RCL series is the integrated KOHLER® 2.4-inch color display, which allows users to monitor generator performance in real-time. This user-friendly interface provides vital information such as operational status, run time, and maintenance notifications. Additionally, the series is designed with automatic transfer switches that allow for seamless switching between utility and generator power.

Moreover, these generators incorporate advanced control systems with remote monitoring capabilities, enabling users to check the status of their power supply from a smartphone or tablet. Designed with efficiency in mind, the RCL series boasts a fuel-efficient operation that supports both natural gas and propane, catering to diverse energy preferences.

In summary, the Kohler 60RCL, 48RCL, and 38RCL generators combine high performance, advanced technology, and user-friendly features. They are reliable solutions for anyone looking to safeguard their power needs, ensuring peace of mind when it matters most.
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