Lennox 25M73 2.5-Ton Cased Upflow Evaporator Coil R410A/R454B CK40CT-30B

The Lennox 25M73 Cased Upflow Evaporator Coil is a 2.5-ton heat transfer component used in air conditioning and heat pump applications to absorb heat from indoor air during the cooling process. Featuring a factory-cased design and compatibility with R410A and R454B refrigerants, the CK40CT-30B coil is installed in the airstream above a furnace or air handler in configurations. Used with residential HVAC systems, it works in conjunction with the outdoor condensing unit to facilitate refrigerant-based heat exchange. Its role within the system is to support efficient cooling performance and consistent indoor temperature control.