59TN7A080C21--20
59 = Family
T = Two Stage Gas Valve
N = Infinity Series
7 = +96% AFUE
A = Major Series
080 = 80000 BTU Heating Capacity
C = Communicating Variable Speed Constant Airflow ECM Motor
21 = 21" Casing Width
- = Voltage
- = Minor Series
20 = 2000 CFM

Standard Features:

• Variable−Speed blower motor two−speed inducer motor and two−stage gas valve
• Infinity^® System; compatible with single and multiple−zone Infinity Systems
• Ideal Humidity^® regulates humidity based on outdoor temperature
• SmartEvap^TM dehumidification prevents condensate buildup on the coil¹
• ComfortFan^TM allows homeowner to select continuous fan speed¹
• Self diagnostics through Infinity User Interface
• 4-way multipoise design with unique venting elbow


• Direct−vent/sealed combustion single−pipe venting or ventilated combustion air
• Energy Star^® Rated
• Convertible to propane with accessory kit
• 10-year parts limited warranty²

¹Requires compatible thermostat¹See warranty certificate for details