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2013 R&D 100 Winner
Rheem H2AC Rooftop Unit featuring eSync Integration TechnologyThe U.S.’s nearly 1 million restaurants typically use five times more energy per square foot than other commercial buildings. One approach to helping these businesses operate more efficiently is to combine the building’s air-conditioning and water-heating systems. The Rheem H2AC Rooftop Unit featuring eSync Integration Technology is a combined technology from a single manufacturer, Rheem, which allows water to be heated from waste heat generated by an air-conditioning unit. Capable of heating water as cold as 55 to 125 F, the unit can be installed in new construction or retrofitted.

A conventional air conditioning unit removes hot air from a building and uses cold refrigerant to absorb the heat from the air. The heated air is typically vented. The H2AC recovers this heat by switching from a refrigerant-to-air system to a refrigerant-to-water system when there is demand for air conditioning and hot water. This can provide significant energy savings as nearly 20% of restaurants bills are for heating water.

Technology
Air-conditioning unit

Developers
Rheem


Development Team

Rheem's Rheem H2AC Rooftop Unit featuring eSync Integration Technology development team. First row (l-r): Brian Callan, Phillip Sanders, Larry Gant, Keith Grahl. Second row (l-r): Wayne Kneessi, Jim Worthington, Walter Lowrimore. Third row (l-r): amy Johnson, Chuck Holt. Fourth row (l-r): Brad Davenport, Scott Winters.

 











The Rheem H2AC Rooftop Unit featuring eSync Integration Technology Development Team from Rheem
Erich Bauman, Principal Developer
Mike Branson
Sal Brunetto
Brian Callan
Brad Davenport
Randy Foster
Joseph Fristik
Larry Gant
Keith Grahl
Amy Johnson
Kelvin Kleman
Wayne Kneessi
Randy Layne
Robert Long
Walter Lowirmore
Ken Rothgeb
Phillip Sanders
Tim Shellenberger
Nitish Singh
Scott Winters
Jim Worthington

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