Cabin HVAC

RA-Series

Products

RA-Series: Rooftop Air Conditioning System

The RA-Series is Grayson’s range of compact rooftop air conditioning systems for driver cabins. Designed for electric, hydrogen and combustion-engine vehicles, the series delivers reliable, engine-independent cooling with plug-and-play installation and optional reversible heat pump functionality.

About Our RA-Series

Developed to maintain stable driver cabin temperatures, the RA-Series provides efficient rooftop cooling and optional heating across on-highway and off-highway applications. Electric-drive compressors, flexible airflow configurations and pre-charged systems support low integration effort, predictable performance and reduced lifecycle costs across diverse vehicle platforms.
Our Capabilities

Configured to Your Specifications

Alongside proven RA-Series catalogue units, Grayson offers full engineering and manufacturing capability to configure or develop bespoke rooftop HVAC solutions aligned to vehicle architecture, voltage level and climate requirements. Learn More

Contact Us

Searching for a solution to efficiently keep cabin climates comfortable in all conditions?

Contact our team of thermal specialists today for more information or to receive more technical data, configurations and integration guidance.

Enquire About Our RA-Series Cabin HVAC Series Today

More Cabin HVAC Series

Grayson’s Cabin HVAC range also includes dedicated solutions focused on fast windscreen demisting and targeted cabin airflow control.

Discover More About Grayson

Explore more about Grayson’s expertise, markets and long-term support services for advanced thermal management systems.