Electronic Climate Control AC Trainer by Megatech was designed to offer hands on air conditioning systems for students. The trainer consists of an electronic climate control air conditioning unit including: compressor, blower, fan, evaporator condenser, accumulator, pressure swith and other related parts mounted on an industrial duty mobile cart. The OEM components are based on an OBII compliant model AC unit, complete with electronic controls, and coms pre-charged with R134a refrigerant.