Efficiency
Select sizes are ENERGY STAR® certified, meeting strict efficiency guidelines set by the EPA.
- When paired with select crossover heat pumps, the 45MUAA significantly lowers energy consumption compared to standard systems.
Comfort & Performance
- The unit uses an ECM motor to minimize temperature swings, providing a more consistent and comfortable indoor climate.
- Works with the outdoor unit to effectively manage indoor humidity levels during cooling cycles.
Technology & Design
- Compatible with Puron Advance™ (R-454B), which maintains non-ozone-depleting properties and reduces Global Warming Potential (GWP) by 75% compared to R-410A.
- Compact footprint designed to fit into tight closets or utility spaces where traditional air handlers might not fit.
- This is one of the quietest units in its class, operating at sound levels as low as 25.5 decibels (quieter than a whisper or a quiet library).
- Built to be “open,” it is compatible with all standard 24V thermostats, including smart models like ecobee or Nest.
Warranty
Covered by Carrier’s Consumer Choice Warranty.
Carrier 45MUAA – At a Glance
| Specification | |
| Sound Level | As low as 25.5 dB |
| Installation Positions | 4 (Upflow, Downflow, Horizontal L/R) |
| Thermostat | Compatible with all 24V models |
| Refrigerant | Puron Advance™ (R-454B) |
| Efficiency | ENERGY STAR® certified (select sizes) |
| Application | Residential Single-Zone |
