2.7.2ATS Control Sequence of Operation

See Figure 2-8 for time delay settings.

Preferred Source Fails:

1.The load control contact opens.

2.The engine start time delay times out.

3.The generator set is signaled to start.

4.The generator starts and the emergency source becomes available.

5.The normal-to-emergency time delay times out.

6.The transfer switch transfers to the emergency source.

7.The load control contact time delay times out.

8.The load control contact closes.

Normal Source Returns:

1.The emergency-to-normal time delay times out.

2.The contactor transfers to the normal source.

3.The engine cooldown time delay times out.

4.The generator is signaled to stop.

2.7.3Time Delays

Time delays are factory-set to the values shown in Figure 2-8. An authorized distributor/dealer can adjust time delays using a personal computer and Kohlerr SiteTecht software.

Time delays described in this section operate only when the controller is connected to a Kohlerr Model RXT transfer switch.

The engine start and load transfer time delays prevent engine start and load transfer caused by brief variations in the utility power source.

2.7.4ATS Load Control Relay Time Delay

The load control time delay allows delayed starting of large motor loads (such as air conditioners), preventing simultaneous starting of large motors after transfer to the generator set. The load control time delay is fixed at 5 minutes. It is not adjustable.

The load must be connected to the load control output on the interface board of the Model RXT transfer switch. See the transfer switch operation and installation manual for connection instructions.

Time Delay

Setting

Description

 

 

 

Engine Start

3 seconds

Time delay after utility source is lost until the engine start cycle begins.

 

 

Guards against starting the generator set because of a brief change in

 

 

the utility source.

 

 

 

Transfer, Normal to Emergency

3 seconds

Time delay after emergency source becomes available until transfer to

 

 

emergency source.

 

 

 

Transfer, Emergency to Normal

2 minutes

Time delay after the utility source returns until transfer back to normal.

 

 

Ensures that the the utility source is stable before transferring from the

 

 

emergency source.

 

 

 

Load Control

5 minutes

See Section 2.7.4. Allows delayed connection of selected loads to the

 

 

generator set to prevent simultaneous starting of large motors after

 

 

transfer to the emergency source. Recommended for delayed starting

 

 

of air conditioners.

Figure 2-8 Time Delays

 

 

26 Section 2 Generator Set Operation

TP-6810 11/13

Page 25 Page 27
Page 26
Image 26
Kohler 60RCL ATS Control Sequence of Operation, Time Delays, ATS Load Control Relay Time Delay, Preferred Source Fails
Page 25 Page 27

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.
Top Page Image Contents