Infinity Series Fan Coils Models: FE4 Key Features Improve system efficiency by 2 SEER Cooling savings up to 16% Heating savings up to 10% Environmentally sound Puron® refrigerant Puron Refrigerant specific TXV metering device Smart Diagnostics Variable speed fan Infinity™ Control Board Advanced User Interface Improved humidity control Enhanced indoor air quality Advanced temperature control Five-year limited warranty Click here to read more. Performance Series Fan Coils Models: FV4 / FK4 Key Features Environmentally sound Puron® Refrigerant or R-22 Refrigerant Puron Refrigerant or R-22 Refrigerant specific TXV metering device Improve system efficiency by 2 SEER Cooling savings up to 16% Heating savings up to 10% Variable speed fan Improved humidity control Enhanced indoor air quality Optional electrical resistance heat Five-year limited warranty Click here to read more. Base Series Fan Coils Models: FY4 / FA4 Key Features Environmentally sound Puron® refrigerant or R-22 refrigerant Systems Puron Refrigerant or R-22 refrigerant specific Thermostatic Expansion Valve metering device Foil-faced insulation High efficiency fixed speed fan Enhanced indoor air quality Optional electrical resistance heat 5-year limited warranty

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