Profile: AC Component Specialists, Inc. (ACCS) is a distributor for Hitachi scroll and screw compressors used in the HVAC/R industry. The Hitachi scroll compressor is used in low temperature applications, such as in the cryogenics industry. We carry a complete inventory of genuine Hitachi replacement parts. Hitachi semi-hermetic horizontal screw compressors are perfect for water chiller and self contained air conditioning applications with water-cooled or air cooled condensers.