4DES-7Y-40S ecoline. — Bitzer, OEM manufacturer part number 4DES7Y40SBEINO. Verified technical data: Product description = 4DES-7Y-40S ecoline.. Applications: commercial and industrial refrigeration, marine reefer plant, cold storage installations, and secondary-loop cooling. Bitzer is a leading manufacturer in this segment; the 4DES7Y40SBEINO sits within the Bitzer refrigeration components range.