AAON designs, manufactures and sells semi-custom heating, ventilation and air conditioning equipment (HVAC) for commercial and residential use. AAON is a world leader in creating comfortable and healthy indoor environments, efficiently, through the manufacture of premium HVAC equipment.

AAON, Inc was founded in 1988 with the acquisition of the heating and air conditioning division of the John Zink Company. AAON Coil Products, Inc. was founded in 1991 with the acquisition of Coils Plus, Inc. of Longview, Texas. Expansion and growth continue today with the addition of new production lines and new machinery. The Tulsa offices and manufacturing facilities are over 1.3 million sq. ft.; the Longview offices and manufacturing facilities are over 250,000 sq. ft. In the two plants combined, AAON employs over 1300 individuals.

Our knowledgeable independent manufacturers’ representatives can help you select the right equipment to meet your needs whether they are heating, cooling, dehumidification, air movement, energy recovery or a number of other HVAC needs.

functionality - AAON equipment is designed and manufactured to meet your particular requirements. AAON Sales Representatives can review with you the options available for each particular product type. Selection from the superior features and premier options, along with your choice of controls, will ensure the equipment is tailored exactly to the job specifications.

energy efficiency - All AAON equipment is designed with the highest energy efficiency in mind. Efficiencies are maximized for all temperature conditions rather than only rated conditions. On applicable products, energy efficient designs are utilized like evaporative-cooled condensers and factory installed energy recovery devices.

factory testing - All products, without exception, are run tested for all functions. All components are checked to ensure they function properly in the finished product. The refrigerant circuit is checked for high-pressure and low-pressure readings versus the ambient conditions to assure proper performance. The heating section is completely checked, including the rate of gas flow on gas heaters. Safety devices are checked by simulation of condenser fan or supply fan failure. Test results are recorded and copies of the results are shipped with the equipment.

ease of installation - Complete factory installation and testing of all selected features and options eliminates the uncertainties and additional cost associated with field installation of add-on components. Our quality check procedure permits quick onsite installation and startup.

ease of maintenance - The increasing cost of qualified service technicians dictates the necessity to reduce the time to service all equipment. AAON equipment is designed from concept to completion with minimum service time as a primary factor. As an example, AAON utilizes doors with full height stainless steel hinges and lockable handles in all usual maintenance areas to minimize access time.

From a mechanical viewpoint, AAON designers understand the importance of accessible components to lower maintenance time and control associated cost. Readily accessible compressors and control components allow timely evaluation of service issues without delay. Color-coded wiring diagrams allow fast connection identification and analysis and thus a reduction in down time and cost. Individual components, wires, and fuses are also labeled for quick circuit evaluation. The result of this AAON standard procedure is low service cost and greater unit run time

AAON air handling units are engineered for performance, flexibility, and serviceability. Double wall rigid polyurethane foam insulated cabinet construction and direct drive backward curved plenum fans allow units to have quiet, energy efficient airflow with high static pressure capabilities. The air handling units can be matched with AAON condensing units or an AAON chiller for a complete system.

AAON Condensers & Condensing Units are engineered to be energy efficient, long lasting, and easy to install. All condensing units are completely factory assembled, piped, wired, and run tested. Many available options are factory installed to minimize field installation time and reduce costs.

AAON chillers are engineered for performance and serviceability. Variable capacity compressors and high efficiency air-cooled and evaporative-cooled condensing are available to maximize performance. Factory engineered and installed chilled water pumping packages complete the system. Factory installed controls arrive ready for operation. AAON chiller outdoor mechanical rooms feature weatherproof double wall rigid polyurethane foam panel construction with lighted walk-in service compartments to allow maximum accessibility while installing and maintaining the equipment. A boiler and boiler pumping package can also be factory installed in the outdoor mechanical room

AAON rooftop units are engineered for performance, flexibility, and serviceability. Double wall rigid polyurethane foam insulated cabinet construction and direct drive backward curved plenum fans allow the units to have quiet, energy efficient airflow with high static pressure capabilities. The lockable hinged doors provide easy access to all sections of the unit for servicing.

Water-Source Heat Pumps

AAON WH Series Horizontal Water-Source Heat Pumps lead the industry with innovative design, performance, and serviceability. The technologically advanced AAON WSHP manufacturing line is unmatched in the industry, utilizing a unique production methodology that integrates mass production with mass customization and allows production of up to 180 units per days. AAON Water-Source Heat Pumps are stocked and ready to ship.