1994 Chester-Jensen Co Sanitary Plate Chiller. Model: XB4-OT-2-21, S/N: 9427-P. Stainless steel. Refrigerant: ammonia. (2) Plate coolers: 61-1/2 in. L x 29 in. H. (21) corrugations/plate. 24 sq.ft. cooling section/plate. Cooler sections are certified for 200 psig @ 200 °F. Collecting tank has 2 in. of insulation on sides and bottom. Inner lining of stainless steel. Collecting tank overall dimensions: 65 in. L x 28 in. W x 28 in. H. (2) Covers; removable for easy cleaning. Maximum flow rate per 24 corrugation section is 2000 gph. Allowable refrigeration: 15 tons. Overall dimensions: 91 in. L x 38 in. W x 84 in. H.