Evaporators for Commercial, Heavy-Duty & Specialty Vehicles
HVAC evaporators are components in motor vehicle air conditioning systems that transform the air from hot to cool. At O2 Cool Manufacturing, we handle all aspects of evaporator fabrication from design, manufacturing, distribution to installation and after-service. We manufacture evaporators for commercial, heavy-duty, and specialty vehicle A/C systems. Our lineage tracks through decades of experience, back to when the idea of air conditioning a cab first arrived.
Ceiling-mount automotive evaporators, often called “hang-down units,” attach directly to the vehicle’s ceiling and blow chilled air directly into…
Find Out MoreO2 Cool Manufacturing designs automotive under-dash evaporator units to specifically cool the front seating area in numerous types of vehicles.
Find Out MoreWall-mount automotive HVAC evaporators efficiently cool the vehicle’s cabin area while remaining the least intrusive to the space.
Find Out MoreAutomotive HVAC Evaporators
HVAC evaporators work by taking in heat and passing it over coils that contain a cold, low-pressure refrigerant. As the refrigerant absorbs the heat, it changes from a liquid to a gas, hence the name “evaporator.” HVAC evaporators work by taking in heat and passing it over coils that contain a cold, low-pressure refrigerant. As the refrigerant absorbs the heat, it changes from a liquid to a gas, hence the name “evaporator.”
Evaporators for Commercial Vehicles
Commercial vehicles, like vans and buses, generally need to cool larger cabin spaces with a lot of glass and very little to no insulation…so the evaporators are often larger and more powerful. We design them with durable materials so that they perform consistently over long-term use. Since commercial vehicles need to balance fuel consumption with comfort, we make sure our evaporators are well-designed and operate efficiently to reduce the overall load on the air conditioning system.
Evaporators for Heavy-Duty Vehicles
The more rugged and reliable HVAC evaporators for heavy-duty vehicles, such as trucks and construction equipment, are built to handle intense heat, dust, and vibrations. Heavy-duty vehicles frequently have larger or specialized cab areas and need evaporators effective in open or enclosed spaces and additional cooling zones. We build these evaporators with robust materials and extra protection against damage from debris or corrosion in tough environments.
Evaporators for Specialty Vehicles
Specialty vehicles with unique designs and purposes beyond general transportation often have unique climate control requirements. They usually need evaporators tailored to specific functions, such as:
- Ambulances: Precise temperature control, compact design, stand alone operation
- Fire Trucks: Resistance to dust and heat, high airflow, and effective operation from short high speeds to long on site idle activity
- Refrigerated Trucks: Cabin and cargo temperature management, consistent performance in high and low temperatures, from standby to engine tie-in
We custom design and build evaporators for specialty vehicles with features like low profiles, multi-zone cooling, solar or generator compatibility, and extreme temperature capabilities.

Discover Other HVAC Systems
Looking for more options? Check out our full range of HVAC systems for all types of vehicles and needs. Find your ideal solution today.
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Find Out MoreThese units typically feature all-in-one configurations that sit on top of the vehicle, drawing air directly from the cabin, which minimizes the need for…
Find Out MoreWhy Choose O2 Cool?
Focus on Safety and Comfort
Innovative and Energy-Efficient Solutions
Reliable, Durable, High-Quality Products
Additional Benefits
- Partnerships with Local Universities for Innovative Technologies
- Mission to Exceed Customer Expectations
- Focus on Vehicle Types, Including Public Transit, School Buses, and Emergency Vehicles
- Commitment to Sustainability and Environmental Responsibility
- Customization Options for Individual Customers
- Exceptional Warranty and Customer Support Services