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The energy recovery wheel is the perfect solution to energy conservation and ventilation issues. It optimizes energy savings by pre-cooling ventilation air in the summer and pre-heating it in the winter. The energy recovery wheel not only meets the ASHRAE standard of 15 CFM of outside air per student, but also provides conditioning and ventilation in one cabinet. The ERV is internally mounted and allows up to 450 CFM (depending upon speed setting) of fresh air and exhaust through the unit while maintaining superior indoor comfort and humidity levels. In most cases, this can be accomplished without increasing equipment sizing or operating costs. Heat transfer efficiency is up to 64% during summer and 79% during winter conditions. The ERV consists of a unique "rotary energy recovery cassette" that provides effective sensible and latent heat transfer capabilities during summer and winter conditions. Various control schemes are addressed including limiting ventilation during building occupancy only. The ERV has a filter for the exhaust air to keep the rotary wheels clean and free of any debris introduced through the room return air grille. (Click here for the ERV operator's manual) For more information about the WERV, please contact School Envirotrols at 302-846-9103.
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