Energy recovery ventilation (ERV) is the energy recovery process of exchanging the energy contained in normally exhausted building or space air and using it to treat (precondition) the incoming outdoor ventilation air in residential and commercial HVAC systems暖かい季節には,システムで予冷却と脱湿を施し,冷たい季節では,予湿と予熱を施します.エネルギー回収の利用の利点は,ASHRAEの換気とエネルギー基準を満たす能力です室内空気の質を向上させ,HVAC設備の総容量を削減する.