Colku D26: Smart, Energy-Efficient Rooftop Cooling for Heavy-Duty Trucks

For long-haul truck drivers, reliable cooling during rest periods is essential for comfort, safety, and productivity. Designed specifically for heavy-duty trucking applications, the Colku D26 24V DC rooftop air conditioner delivers an ideal balance of powerful cooling, ultra-low energy consumption, and intelligent control.

Ultra-Efficient Cooling with COP 3.6

One of the key highlights of the Colku D26 is its outstanding energy efficiency with a COP of 3.6. This allows the system to provide strong cooling performance while significantly reducing power consumption — an important advantage during long parking hours when battery efficiency matters most.

Advanced Twin-Rotor Cooling Technology

At the heart of the D26 is a high-efficiency twin-rotor compressor, combined with dual brushless fans for both the internal and external airflow systems. This configuration ensures fast cooling response, stable operation, and continuous performance, even under demanding high-temperature conditions.

Faster and More Even Cooling with 3D Airflow

The D26 features an upgraded electric 3D air distribution system that delivers 450 m³/h of uniform airflow. This design allows cool air to circulate evenly throughout the cabin, reducing hot spots and achieving a quicker, more comfortable temperature drop.

Built for Extreme Driving Environments

Engineered for real-world trucking conditions, the Colku D26 operates reliably across a wide ambient temperature range from 16°C to 55°C. Whether parked under intense summer heat or operating across long-distance routes, the D26 maintains stable cooling performance when drivers need it most.

Easy Installation and Smart Control

With a standard rooftop mounting design, the D26 fits 350 × 345 mm rooftop openings, enabling quick installation using vehicle-specific accessories. For added convenience, it offers five intelligent operating modes and supports control via mobile app or remote controller, giving drivers full flexibility to manage cabin comfort.

A Reliable Cooling Solution for Long-Haul Trucks

Combining high energy efficiency, advanced cooling technology, and smart user control, the Colku D26 is a dependable rooftop air-conditioning solution for modern heavy-duty trucks. It is designed to enhance driver comfort, reduce energy consumption, and perform consistently across long-haul and high-temperature applications.