One, Used, York Air Cooled Screw Chiller, 200 Nominal Ton, Model YCAS0200EC17YGASBTXXTXXLXXOX44, Serial RFMM005873, designed for 200/3/60 Volt Operation. Includes Holding Charge (only) of R22 Refrigerant. Originally Manufactured in 2003 with only - - - - hours operation since new.