Ultra Efficiency Air Conditioner Generous cooling and incredible energy efficiency.
Roll over an icon to learn more.
Click an icon to view the glossary.
Allegiance 18 provides a quiet cooling that is unmatched air conditioning unit. The energy savings will reduce your energy usage as much as 56 percent while also reducing greenhouse gas emissions. The Allegiance 18 Ultra Efficiency air conditioning unit is used at residential and small business locations. This reliable and efficient central air conditioning system removes humidity from the home, improving the energy savings and also providing the soothing cool for summer months.
The Spine Fin coil and the Duration compressors keep the unit reliable and long lasting. It is rust resistant, providing low air conditioning maintenance and is an ideal choice for any home.
Key Benefits:
Surpasses government efficiency standards, helping you save up to 50% on your energy bills while reducing greenhouse gas emissions*
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
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.
Residential Air 
