The evaporator coil sits above or below the furnace and carries refrigerant from the outdoor unit. Coil selection is not simply a matter of tonnage — it determines the certified efficiency of the whole system.
Ruud RCFY2414STAAMC 2 Ton Cased Evaporator Coil
Ruud RCFY2417MTANMC 2 Ton Cased Evaporator Coil
Ruud RCFY2417STANMC 2 Ton Cased Evaporator Coil
Ruud RCFY2421HEAAMC 2 Ton Cased Evaporator Coil
Ruud RCFY2421MTANMC 2 Ton Cased Evaporator Coil
Ruud RCFY3617STANMC 3 Ton Cased Evaporator Coil
Ruud RCFY3621MEAAMC 3 Ton Cased Evaporator Coil
Ruud RCFY3621MTANMC 3 Ton Cased Evaporator Coil
Ruud RCFY3621STANMC 3 Ton Cased Evaporator Coil
Ruud RCFY4821SEAAMC 4 Ton Cased Evaporator Coil
Ruud RCFY4821STAAMC 4 Ton Cased Evaporator Coil
Ruud RCFY4821STANMC 4 Ton Cased Evaporator Coil
Ruud RCFY6021SEAAMC 5 Ton Cased Evaporator Coil
Ruud RCFY6021STAAMC 5 Ton Cased Evaporator Coil
Ruud RCFY6024STANMC 5 Ton Cased Evaporator Coil
Why the specific coil model matters
The same condenser and furnace paired with a different coil produces a different SEER2 rating and a different AHRI certificate number. Selecting a coil by tonnage alone is the most common matching error in the trade. Check the AHRI listing for your combination and order the coil model it names.
TXV or EXV
A thermostatic expansion valve regulates refrigerant flow mechanically and is standard on single and two-stage systems. An electronic expansion valve modulates flow electronically for tighter control across varying conditions, and is typically paired with variable speed equipment. The two are not interchangeable — the certified pairing specifies which.
A2L sensor included
Every coil listed includes the refrigerant sensor required for R-454B systems. Older coils without an A2L sensor cannot be used with current outdoor equipment.
