- Aspen Evaporator Coil, Series: CE (DX-Treme), CE36D Model, 36000 Btu/hr BTU, Configuration: Horizontal, Upflow, Downflow, 3 ton, R-410 Refrigerant, Left-Hand Cased Coil, 3/8 in ODS Liquid, 3/4 in ODS Suction Connection, 0.068 in Piston Size, Copper Tube, Polyester-Painted, Gray, Cabinet - 17-1/2 in W x 27 in H x 21-1/2 in D