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American Standard Air-Gas/Electric Heating & Cooling Systems Comparison Chart
All-in-one gas/electric features Ultimate Premium Contemporary
4YCZ6 4YCY4 2/4YCX3 2/4YCC3
Appliance-grade finish
Architectural louvers and corner guards  
All-steel cabinet with Coil-SavR grille      
All-steel cabinet with weather-beater top
DuraTuff™ outdoor plate fin coil        
Exclusive Spine Fin™ coil
Variable speed blower    
Vortica™ advanced airflow system
Dual Duration™ compressors        
Two Stage Duration™ compressor      
Single Stage Duration™ compressor  
High efficiency fan with grille trim ring        
Super-quiet high efficiency ducted fan  
Stainless steel heat exchanger and burners
Two-stage gas valve    
Direct-spark ignition
SermaGuard rust-resistant screws
Comfort-R mode    
Propane convertible
Refrigerant R-410A R-410A R-410A R-22 or R-410A
High SEER efficiency Up to 16.60 14.20 13.55 13.00
High AFUE efficiency 80 80 80 80
20 Year Limited Warranty on Heat Exchanger with registration*
 
10 Year Limited Warranty on Heat Exchanger with registration*      
12 Year Limited Warranty on Compressor with registration*
 
 
 
10 Year Limited Warranty on Compressor with registration*  
10 Year Limited Warranty on Outdoor Coil with registration*
 
5 Year Limited Warranty on Outdoor Coil with registration*      
10 Year Limited Warranty on Internal Functional Parts with registration*
 
 
 
5 Year Limited Warranty on Internal Functional Parts with registration*  
*Registered Limited Warranty terms are available when you register within 60 days of installation. You can register online at americanstandardair.com or by phone at 800-554-8005, otherwise American Standard Heating & Air Conditioning's Base Limited Warranty terms will apply. Base Limited Warranty information on specific products can be found on americanstandardair.com.
Optional Extended Warranties available. Extended Warranties can labor and other costs not covered by manufacturer's limited warranty.
 

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American Standard Heating & Air Conditioning is an international indoor and outdoor Air Conditioner manufacturer, providing air handlers, heat pumps, heating systems, furnaces, and programmable thermostats. American Standard Heating & Air Conditioning also provides clean and affordable cooling and heating, humidifiers, indoor air quality and clean air systems. Efficiency. Reliability. Quality. That's what makes American Standard Heating & Air Conditioning.