Infinity® Variable-Speed Air Handler
FE5B
Premium comfort and efficiency with precise airflow control.
Experience premium comfort and energy efficiency with the Infinity Variable-Speed Air Handler. Engineered for exceptional performance, this air handler works seamlessly with compatible Infinity outdoor systems to help reduce heating and cooling costs and optimize temperature control. Advanced variable-speed technology helps provide consistent airflow, refined humidity management, and quiet operation, all while promoting a more comfortable indoor environment.
Features
Enjoy consistent temperature, quiet operation, and humidity control, helping ensure year-round indoor comfort when paired with a compatible Infinity outdoor unit.
Puron Advance™ refrigerant delivers a 75% decrease in global warming potential while maintaining original Puron's non-ozone depleting properties.
Advanced leak dissipation system meets UL safety requirements for enhanced system protection.
Can deliver exceptional airflow management when paired with compatible filtration systems, helping enhance the quality of the air you breathe.
Models with aluminum coils are built to provide long-term performance and optimal efficiency.
Available in various sizes to accommodate most homes.
Experience peace of mind with Carrier's Consumer Choice Warranty. Upon timely registration, on eligible equipment select either a 10-year parts only limited warranty or a 5-year parts, plus a 3-year labor limited warranty.1
Harness premium energy efficiency and advanced technology to help create a comfortable, sustainable living environment.
Customer Reviews
4.7 /5
4.7 rating of Reviews (20)
Quiet efficient comfort
October 5, 2026
Operates quietly, not aware it is actually working it is so quiet.
Lukewarm
September 30, 2026
We had our previous unit for 22 years and not a single problem. Because of its age, we were proactive and got a new unit so we wouldn't have any problems. Well, nine months later the boards need to be replaced. We have been without AC for a month! The dealer/repair guy was originally told they would take two months to be shipped but supposedly, they were shipped after a month. Hopefully, they arrive soon! The Smart feature is frustrating because on my phone it can look like all is fine when in reality the wifi is disconnected from the thermostat, so I have no idea what is actually happening!
Amazing Air Conditioner Unit
September 16, 2026
I will only suggest improving the thermostat time settings. Somewhat as the Nest Thermostat have.
Air Handler
September 16, 2026
Works quite well and is quiet.
A major upgrade from my 12 year old construction grade unit.
September 13, 2026
Very pleased with the electrical cost savings of the variable speed fan, qu pleased with the electric cost savings from the variable speed fan. The reduced noise level and the even heating and cooling. No more blast of either hot of conditioned air.
HVAC 406
July 28, 2026
Quiet operation
Documents
Brochure
Carrier Fan Coils w/Puron Advance Consumer Brochure
California residents please see Proposition 65
Legal disclaimer
To the original owner on eligible equipment for eligible residential applications. Warranty period is 5 years if not registered within 90 days. Jurisdictions where warranty benefits cannot be conditioned on registration will automatically receive a 10-year parts limited warranty, which can be changed to the 5-year parts, plus a 3-year labor option on eligible equipment within the first 90 days after installation. The 5-year parts, plus 3-year labor warranty option is available only if the installing dealer/contractor has elected to participate in the Consumer Choice warranty program and has accepted the Consumer Choice dealer terms and conditions.