Take a look inside, and you'll see how your York Stellar unit is specially designed with all copper fittings to prevent premature corrosion. A top-of-the-line solid core filter-drier offers optimum internal protection. Rippled coil fins are fabricated from hardened aluminum, and all coils are fashioned from copper tubing for optimum reliability and performance.

Your York Stellar system uses the York Sound Silencer System. The system includes specially designed ripples coil fins, a compressor blanket, and compressor mounts, which all contribute to the very low sound level of the unit.

Like all central air conditioners, the Stellar Series is part of a home comfort system. That system includes an "indoor unit" to deliver conditioned air throughout your home, which helps to determine the "SEER" rating you system will achieve. The higher the "Seasonal Energy Efficiency Ratio" (SEER) rating number, the more efficient the system. The Stellar Series is engineered for energy efficiency compatibility with York indoor units, including York standard furnaces, variable speed furnaces, and variable-speed air handlers. The Stellar unit can achieve up to 12 SEER efficiency when matched with a variable-speed furnace or air handler.

• Ecology - Eco² rooftop units utilize HFC-407C refrigerant, which has zero ozone-depletion potential.

• Economy - Because they are optimized for HFC-407C, Eco² units are up to 20% more efficient than a HCFC-22 unit retrofitted with a HFC refrigerant.

• Indoor Air Quality - For a healthier indoor environment, Eco² units offer a wide range of IAQ features.

• Open Communications - Eco² units are BACnet^® compatible, which ensures seamless communication with any BACnet control system.