Efficiency
ENERGY STAR® certified.
- Cooling and heating efficiency are dependent on the specific outdoor unit pairing, but it is designed to maximize the SEER2 and HSPF2 ratings of the connected heat pump.
- Features less than 2% air leakage, ensuring the conditioned air reaches your living spaces rather than escaping into the attic or basement.
Comfort & Performance
- The ECM motor provides precise climate management, maintaining ideal temperatures while minimizing disruptive swings.
- When paired with the correct outdoor unit, it supports heating operation in temperatures as low as -22°F (-30°C).
- Utilizes “Constant Airflow” technology to automatically adapt to existing ductwork designs or issues like dirty filters to ensure consistent comfort.
Technology & Design
- Compatible with Puron Advance™ (R-454B), which offers a 75% reduction in Global Warming Potential (GWP) compared to R-410A.
- The screwless connection and smaller modular pieces enable one-man operation during installation.
- Includes an anti-corrosive fin coating and an aluminum coil for long-lasting performance.
- Built-in refrigerant leak detection system for added peace of mind.
- Engineered for minimal noise, this unit operates at sound levels as low as 33 decibels (comparable to a quiet library).
- Includes a built-in 24V interface, making it compatible with virtually any third-party 24V thermostat (Nest, ecobee, etc.).
- Features an intelligent auto-sensing power supply that works with both 115V and 208/230V without manual conversion.
- Supports optional electric heat packages ranging from 5kW to 25kW for extra warmth in extreme climates.
Warranty
Covered by Carrier’s Consumer Choice Warranty.
Carrier 45MUHA – At a Glance
| Specification | |
| Sound Level | As low as 33 dB |
| Installation Positions | 6 (including “Low Boy” and Split) |
| Voltage | Auto-sensing 115V or 208/230V |
| Efficiency | ENERGY STAR® Certified |
| Refrigerant | R-454B (Puron Advance™) |
| Sizes | 1.5 – 5 Tons |
