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AAON is a manufacturer of semi-custom commercial HVAC equipment, including packaged rooftop units, air handling units, split systems, heat pumps, and condensing units. Founded in 1988 and headquartered in Tulsa, Oklahoma, AAON engineers, manufactures, and markets heating and ventilation equipment for commercial and industrial buildings across the United States. The company operates manufacturing facilities in Tulsa; Memphis, Tennessee; Redmond, Oregon; Kansas City, Missouri; and Longview, Texas. AAON's commercial rooftop units are available in capacities from 2 to 240 tons, covering light commercial retail spaces through large industrial buildings. Trade contractors and mechanical engineers specify AAON equipment for commercial new construction and retrofit projects where semi-custom configuration and factory-direct engineering support are priorities.

Product Lines

RQ Series Rooftop Units

The RQ Series is AAON's standard-efficiency packaged rooftop unit line for light and medium commercial applications, including retail, office, and light industrial facilities. RQ Series units are available in a range of capacities and can be configured with various heating, cooling, and ventilation options to match the building's mechanical requirements.

RN Series High-Efficiency Rooftop Units

The RN Series is AAON's high-efficiency packaged rooftop unit platform, designed for commercial applications where energy performance is a primary specification driver. RN Series units support advanced controls integration and variable-speed operation, targeting higher-efficiency projects with expanded options for energy recovery and advanced refrigerant management.

SA and SB Series Air Handling Units

The SA and SB Series are AAON's custom air handling unit platforms for commercial and industrial building ventilation. SA and SB Series units are factory-configured to match specific CFM, static pressure, heating, cooling, and filtration requirements for large commercial facilities.

H3 Series Water-Source Heat Pumps

The H3 Series is AAON's water-source heat pump line for commercial buildings using hydronic loop systems, including office buildings, schools, and multi-unit commercial properties. H3 Series units connect to a central water loop and can provide both heating and cooling from a single unit.

V3 Series Variable Refrigerant Flow Systems

The V3 Series is AAON's variable refrigerant flow system platform for commercial applications requiring zoned, multi-unit heating and cooling control. V3 Series systems allow individual zone management within a shared refrigerant circuit, making them appropriate for office buildings, hotels, and commercial spaces with diverse occupancy patterns.

Why Contractors Specify AAON

AAON has been engineering and manufacturing commercial HVAC equipment in the United States since 1988, with multiple domestic manufacturing facilities across Oklahoma, Tennessee, Oregon, Missouri, and Texas. The semi-custom configuration model allows mechanical engineers and commercial contractors to specify rooftop units and air handlers with factory-set options that match the building's precise load, airflow, and controls requirements. AAON markets its equipment through a manufacturer's representative and contractor channel, which means commercial mechanical contractors work directly with trained AAON representatives for project support and engineering documentation. The company's commercial rooftop unit capacity range — from 2 to 240 tons — covers light commercial through large industrial buildings within a single product family.

How to Choose an AAON Product

The most important decision variable when selecting an AAON commercial HVAC unit is the building type and load profile. AAON's product line is organized around commercial applications — rooftop packaged units, air handling units, heat pumps, and VRF systems — rather than residential or light commercial use.

For standard commercial rooftop applications, the AAON RQ Series covers typical capacity and efficiency requirements. When the project specifies higher energy performance or advanced controls integration, the AAON RN Series is the appropriate rooftop unit platform. Both series are available in a range of capacities and can be configured with specific heating, cooling, and ventilation options.

For large commercial facilities where the ventilation scope exceeds what a packaged rooftop unit can handle, the AAON SA and SB Series air handling units provide factory-engineered solutions sized to the building's CFM and static pressure requirements. For commercial buildings using hydronic loop systems, the AAON H3 Series water-source heat pump provides distributed heating and cooling from a shared loop. For multi-zone applications, the AAON V3 Series VRF system is the specification path. Consulting AAON's manufacturer's representative network and engineering documentation is the standard process for equipment selection.

FAQs

Where are AAON products manufactured?: AAON products are manufactured in the United States, across facilities in Tulsa, Oklahoma; Memphis, Tennessee; Redmond, Oregon; Kansas City, Missouri; and Longview, Texas. AAON has been manufacturing commercial HVAC equipment domestically since 1988.
What warranty does AAON offer on its commercial HVAC equipment?: AAON warranty terms vary by product and component. Specific warranty documentation is available through AAON's official product literature, installation and operation manuals, and the AAON manufacturer's representative for a given project.
What's the difference between the AAON RQ Series and the RN Series rooftop units?: The AAON RQ Series is a standard-efficiency commercial rooftop unit platform for typical commercial applications. The AAON RN Series is a higher-efficiency platform with expanded options for advanced controls and variable-speed operation, specified when projects require higher energy performance.
What capacity range do AAON rooftop units cover?: AAON packaged rooftop units are available in capacities from 2 to 240 tons, covering light commercial applications through large industrial and commercial facilities.
Are AAON air handling units compatible with existing building automation systems?: AAON air handling units and rooftop units can be configured with controls options to support building automation system integration. Compatibility depends on the controls package selected and the communication protocol required — consulting AAON's engineering documentation and manufacturer's representative confirms the appropriate configuration.
What AAON product is right for a multi-zone commercial office building?: For a multi-zone commercial office building requiring individual zone temperature control, the AAON V3 Series VRF system may be the appropriate specification, allowing zone-by-zone heating and cooling management within a shared refrigerant circuit. For facilities with central ductwork, the AAON RQ or RN Series rooftop units paired with zone controls are an alternative specification path.

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