Alfa Laval HYAC hybrid air coolers save water and increase cooling capacity. On nature’s terms. Alfa Laval HYAC SZ provides adaptive cooling where temperatures vary. Choose wet or dry operating mode, based on the ambient temperature. During hotter months, wet cooling can be engaged ensuring that a low outlet temperature is achieved. During cooler months, operating dry saves water. Because of the finned surface, no water is used. Alfa Laval HYAC hybrid air coolers save water and increase cooling capacity. On nature’s terms.