AAON Single Zone VAV Rooftop Unit Is Winner in "ACHR News" 2011 Dealer Design Competition

TULSA, OK--(Marketwire - Jul 11, 2011) - AAON (NASDAQ: AAON) was recognized for excellence in product design in the 8th annual Dealer Design Awards Program sponsored by The Air Conditioning Heating & Refrigeration News magazine. An independent panel of 30 contractors acted as judges in the contest that had 127 entries from over 80 different brands. The company's Single Zone Variable Air Volume (VAV) unit was an Honorable Mention in the HVAC Light Commercial Equipment category. The ACHR News is the leading trade magazine in the heating, ventilating, air conditioning, and refrigeration industries.

News Publisher John Conrad stated, "These awards give us a unique opportunity to recognize the outstanding research and development efforts that go into many of the products serving the HVACR industry and the awards issue gives our readers an opportunity to read about innovative installation and service solutions."

AAON RN Series Single Zone VAV Rooftop Units are used where occupancy or space cooling needs vary throughout the day such as classrooms, conference rooms, assembly halls, auditoriums, libraries, hospitals, supermarkets, convenience stores, restaurants, churches, health clubs, museums, libraries, office buildings, manufacturing facilities, lodgings, retail buildings and other occupied spaces. A single zone VAV unit utilizes a variable speed fan and a variable capacity compressor, using less energy than systems without fan and compressor modulation. This allows the HVAC unit to not only consume less energy than constant volume units but also produce less noise due to the reduced fan and compressor loads.

"The recognition of the RN Series Single Zone VAV Rooftop Units in the 2011 Dealer Design Awards demonstrates our continuing commitment to designing and engineering innovative and high performance HVAC equipment," said Norm Asbjornson, President and CEO of AAON.

Winning entries in the Dealer Design Awards were featured in the July 11, 2011 issue of The ACHR News, which is distributed nationally to over 33,000 HVACR contractors, wholesalers, and other industry professionals.

About AAON

AAON is engaged in the engineering, manufacturing, marketing and sale of air conditioning and heating equipment consisting of standard, semi-custom and custom rooftop units, chillers, boilers, air handling units, make-up air units, heat recovery units, condensing units and coils. Since the founding of AAON in 1988, AAON has maintained a commitment to design, develop, manufacture and deliver heating and cooling products to perform beyond all expectations and demonstrate the value of AAON to our customers. For more information, please visit www.aaon.com.