1999 Mueller Recirculated Ammonia Falling Film Plate Chiller. Model: 1050 FFC. S/N: 234728-1. (3) 8 ft. W x 4 ft. H heat transfer sections. Design pressure: 250 psi. Design temperature: 200 °F. Test pressure: 331 psi. Volume: 1.26 cu. ft. Refrigerant: recirculated ammonia. Reservoir capacity: 1050 gallon. The Mueller 4 x 8 enclosed-type falling film chiller is fully enclosed to ensure product is free from airborne particles and is easily accessible through gasketed doors. Comprised of 304 stainless steel water contact surfaces and outer jacket, this unit has expansion capabilities to include 24 plates. Inlets: (1) 4 in. dia. NPT (water/solution), (1) 4 in. dia. refrigerant infeed port. Outlets: (2) 2 in. dia. FNPT (chilled water/solution) discharge, (1) 4 in. dia. FNPT overflow, (2) 4 in. dia. refrigerant ports. Overall dimensions: 12 ft. 1 in. L x 8 ft. 10 in. W x 7 ft. 7-1/2 in. H. (ACN360). FAD. (BB).