2002 York/Frigid Coil Roof-Top Freezer/Evaporator- 17.5 Ton. Model RTFS-L-442-83-FL-HGU-IP-PCV. S/N: 41351A1L. Refrigerant: R717. Rating: 21,000 Btu/hr. Fan diameter: 36 in. Surface area: 3960 sq. ft. Volume: 7.1 cu. ft. Airflow: 33600 cfm. Electrical requirements: 460 V, 15 amps, 60 Hz, 3 phase. Roof-Top Freezer Systems convert freezer space previously reserved for the placement of in-freezer evaporators into additional storage space. Fully insulated, ready for immediate crane lifting. Refrigeration and drain lines are pre-piped external to unit for one-step connection. All service is done on the roof, with easy access to fans and motors through large, preheated service doors. Interior lighting. A-Frame above all motors for easy removal of motors and fans. Eliminates the need for interior elevated service work and disruption within the storage facility. Inlets: (1) 1 in. dia. pipe (water), (1) 4 in. dia. media port with a 6 in. L x 6 in. W square flange that has (4) 3/4 in. dia. attachment holes at a center-to-center distance of 4-1/2 in. Outlets: (1) 3/4 in. dia. pipe (water), (1) 3 in. dia. media port with a 7 in. L x 7 in. W that has (4) 3/4 attachment holes at a center-to-center distance of 6-1/2 in. Overall dimensions: 14 ft. 2 in. L x 9 ft. 5 in. x 96 in. H. (ACN390)