Direct expansion-dedicated outdoor air system (DX -- DOAS)

means a unitary dedicated outdoor air system that is capable of dehumidifying air to a 55°F dew point -- when operating under Standard Rating Condition A as specified in 10 C.F.R. section 431.92 with a barometric pressure of 29.92 in Hg -- for any part of the range of airflow rates advertised in manufacturer materials, and has a moisture removal capacity of less than 324 lb/h.