The Colin Bates air handling unit is divided into three series: the D series is a direct drive type, the B series is a belt drive type, and the J series is a jet unit, with a power supply of 380V 3N~50Hz three-phase AC. The unit is mainly composed of filter screens, coils, fans, etc., which can meet various static pressure requirements. The unit has a compact structure, light weight, superior refrigeration performance, and can be equipped with hot water coils or electrical controls according to users' special requirements. The unit is widely used in supermarkets, large commercial buildings, factory workshops, sports venues, waiting halls, exhibition halls and other places.