Performance™ High Wall Indoor Unit
45MAHA
Effortless comfort, quiet performance, and adaptable installation.
The Performance High Wall Indoor Unit delivers premium comfort with energy-efficient features tailored to your needs. Offering quiet operation as low as 16 decibels, this ductless mini split unit is compatible with single or multi-zone setups and designed to integrate seamlessly into your home. With flexible installation and robust performance when paired with select outdoor units, it’s a great solution for year-round comfort.
- ENERGY STAR®
Features
Enjoy consistent room temperatures and enhanced climate control capabilities. Advanced comfort technology helps deliver a cozy, more precisely controlled living environment.
Designed for hassle-free installation, this ductless system helps eliminate the need for extensive renovations, preserving your home’s interiors.
Whether you need heating and cooling in one room or multiple, this unit seamlessly supports single and multi-zone configurations, making it adaptable to your unique needs.
Operates as quietly as 16 decibels, ensuring a peaceful and comfortable home atmosphere.
Compatible with 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
At a glance
Overall Efficiency
Select sizes ENERGY STAR® CertifiedCooling Efficiency
Dependent on outdoor unit pairingHeating Efficiency
Dependent on outdoor unit pairingSound Level
As low as 16 decibelsSize
Available in various sizes to accommodate most homesRefrigerant
Puron Advance™Wireless Remote
Wireless remote controller includedCreate a more sustainable home and enjoy exceptional comfort with quiet Carrier ductless solutions.
Customer Reviews
4.4 /5
4.4 rating of Reviews (22)
High wall unit
August 4, 2026
The high wall has performed as expected. Thee is a little rattle at time on front panel. The appearance blends into the wall and runs great
Relaxing
July 28, 2026
Quite
Relaxing
July 28, 2026
Quite
Relaxing
July 28, 2026
Quit
This Mini Split is Amazing
July 10, 2026
On days with heat if 107-110 in the summer, and nights in the 40s during the winter, our Carrier mini split does the job of keeping our home a comfortable temperature.
Loud and creaky
June 28, 2026
Unfortunately makes a loud creaking noise every 5 minutes rendering it difficult to use at night time.
Documents
Brochure
Carrier Ductless High-Wall w/ Puron Advance Consumer Fold-Out
Infinity Ductless Heat Pumps Consumer Brochure (EN)
Carrier Performance Ductless Heat Pumps w/ Puron Advance Consumer Brochure
Infinity Ductless Heat Pumps Consumer Brochure (SP)
Carrier Performance Ductless Heat Pumps w/ Puron Advance Consumer Brochure (Spanish)
Infinity Ductless Heat Pumps Consumer Brochure (FR)
Carrier Performance Ductless Heat Pumps w/ Puron Advance Consumer Brochure (French)
Owner's Manual
45MAHAQ High Wall Unit Ductless System Sizes 06K-36K Owner's Manual - Carrier
45MAHAQ Système sans conduit à montage mural Capacité de 06K à 36K Manuel d’utilisation - Carrier
Warranty Card
CAC/BDP Limited Warranty Certificate Limited Warranty for Ductless Split Units
CAC/BDP Garantie limitée applicable aux appareils biblocs sans conduit
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.