37MBHA
Efficient, versatile, and built for year-round comfort.
The Infinity 21 Light Commercial Mini Split Heat Pump helps redefine energy efficiency and comfort with cutting-edge inverter technology. It’s designed to handle temperature extremes, with cooling capabilities in temperatures up to 122°F and heating capabilities in temperatures down to -22°F, helping provide consistent indoor comfort no matter the season. Great for single-zone applications, this system balances cost-effective operation with eco-conscious refrigerant technology, offering reliability backed by Carrier’s trusted engineering.
Advanced inverter technology helps provide more precise temperature control, reducing fluctuations for steady and enjoyable comfort year-round.
Quick and hassle-free. Forget ductwork disruptions as installation can fit seamlessly into your existing space.
Tailored for single-space applications, it delivers focused comfort exactly where you need it, efficiently heating or cooling your room.
Designed with extremely quiet operation in mind, this model keeps your space peaceful while maintaining powerful heating and cooling.
Utilizes Puron Advance™ refrigerant, which reduces global warming potential by 75% compared to traditional options, while maintaining non-ozone-depleting properties.
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
Overall Efficiency
Select sizes ENERGY STAR® CertifiedCooling Efficiency
Up to 21.3 SEER2Heating Efficiency
Up to 11.1 HSPF2Sound Level
As low as 62.5 decibelsCompressor Type
Variable-speedSize
Available in various sizes to accommodate most homesRefrigerant
Puron Advance™Enjoy seamless comfort that supports energy savings while helping reduce your environmental footprint.
Brochure
Carrier Infinity Series Ductless Heat Pumps w/ Puron Advance Consumer Brochure
Carrier Infinity Series Ductless Heat Pumps w/ Puron Advance Consumer Brochure (Spanish)
Carrier Infinity Series Ductless Heat Pumps w/ Puron Advance Consumer Brochure (French)
Warranty Card
CAC/BDP Limited Warranty Certificate Limited Warranty for Ductless Split Units
California residents please see Proposition 65
Legal disclaimer
1. 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.