Two-stage cooling helps you save up to 60% on energy bills.* Stay comfortable with an environmentally friendly refrigerant that’s ozone-safe.

Automatically communicates and coordinates with your other system components via the AccuLink™ Communicating System*
Charge Assist™ charging simplifies service and improves system refrigerant charge accuracy
Among the highest efficiency in the industry, significantly surpassing government efficiency standards and helping you save up to 60% on your energy bills while reducing greenhouse gas emissions**
Contains two compressors that provide two-stage cooling, running at an energy-saving 50% capacity most of the time, which may help lower your cooling bills**
Runs quietly and keeps temperature even from room to room with its variable speed fan motor
Cools with an environmentally friendly refrigerant that’s ozone-safe.
Removes unwanted humidity from the air, leaving you feeling cooler and more comfortable
Provides more efficient and reliable cooling, thanks to durable woven Spine Fin™ coil and dual Duration™ compressors
Rust-resistant coating, screws and basepan protect system from the elements

*An American Standard 900 Series Comfort Control with communicating indoor unit is required for Allegiance 20 communicating air conditioners.

**Potential energy savings may vary depending on your lifestyle, system settings, equipment maintenance, local climate, home construction and installation of equipment and duct system.

Generous two-step cooling and incredible energy efficiency. Stay comfortable with an environmentally friendly refrigerant that’s ozone-safe.

Surpasses government efficiency standards, helping you save up to 50% on your energy bills while reducing greenhouse gas emissions*
Many models meet efficiency requirements for a federal energy tax credit when installed as part of a complete system. **
Contains a two-step Duration™ compressor with two-stage cooling which runs at 70% capacity most of the time, and steps up to the second stage on the hottest days
So quiet, you barely notice it's running
Provides more efficient and reliable cooling, thanks to durable single-row Spine Fin™ coil
Cools with an environmentally friendly refrigerant that’s ozone-safe.
Rust-resistant coating, screws and basepan protect system from the elements

*Potential energy savings may vary depending on your lifestyle, system settings, equipment maintenance, local climate, home construction and installation of equipment and duct system.

*Subject to IRS regulations. Customers should consult a tax professional for advice on tax preparation.

Our most economical single-stage air conditioner which may even qualify you for an energy tax credit.**

Surpasses government efficiency standards, helping you save up to 47% on your energy bills while reducing greenhouse gas emissions*
Many models meet efficiency requirements for a federal energy tax credit when installed as part of a complete system**
Keeps operating noise to a minimum, even on the hottest days
Cools with an environmentally friendly refrigerant that is ozone-safe.
Provides more efficient and reliable cooling, thanks to its single-row Spine Fin™ coil and durable Duration™ compressor
Rust-resistant coating, screws and basepan protect system from the elements

*Potential energy savings may vary depending on your lifestyle, system settings, equipment maintenance, local climate, home construction and installation of equipment and duct system.

****Subject to IRS regulations. Customers should consult a tax professional for advice on tax preparation.

Impressive comfort and energy savings.

Surpasses government efficiency standards, helping you save up to 43% on your energy bills while reducing greenhouse gas emissions*
Provides more efficient and reliable cooling, thanks to its single-row Spine Fin™ coil and durable Duration™ compressor
Rust-resistant coating, screws and basepan protect system from the elements

*Potential energy savings may vary depending on your lifestyle, system settings, equipment maintenance, local climate, home construction and installation of equipment and duct system.

Reliable American Standard Heating & Air Conditioning cooling at its most affordable.

Surpasses government efficiency standards, helping you save up to 38% on your energy bills while reducing greenhouse gas emissions*
An economical option for efficient and reliable cooling
Rust-resistant coating, screws and basepan protect system from the elements

*Potential energy savings may vary depending on your lifestyle, system settings, equipment maintenance, local climate, home construction and installation of equipment and duct system.