As anti-idling regulations continue to expand across North America, trucking companies are looking for more efficient ways to maintain cabin comfort without running the main engine. Corunclima’s Idle Free APU provides an all-electric cooling solution for heavy-duty trucks, allowing drivers to stay comfortable during overnight rest and standby periods while reducing unnecessary fuel consumption.

The K20BS2 Standard delivers 9,500 BTU/h of cooling with an 8–10 hour runtime, making it suitable for standard sleeper cabs. For larger or extended sleepers, the K50BS High-Performance model provides up to 15,000 BTU/h and 10–13 hours of operation. Both models operate on DC 12V/24V power.
Unlike diesel-powered APUs, Corunclima’s electric system requires no fuel and produces no direct emissions during operation. The integrated DC compressor also eliminates belts, hoses and engine components that require regular servicing, helping simplify installation and reduce maintenance requirements. Ultra-quiet operation provides a more comfortable environment for drivers during rest periods.
For fleet operators, the potential savings are significant. Corunclima estimates that the system can save more than 1,500 gallons of diesel per truck annually, with an expected return on investment in approximately 9–10 months. The units are also designed for a service life of more than 10 years and backed by a 5-year warranty.
Corunclima also offers exclusive volume savings for fleets and dealers ordering 100 units or more, along with factory-direct technical support and customized solutions. Upfitters, distributors and fleet operators are welcome to visit the factory and evaluate the products for large-scale projects.
Zhengzhou Corunclima Co., Ltd.
Email:info@corunclima.com