The MRCOOL® Olympus 48,000 BTU multi-zone heat pump condenser is a heating and cooling powerhouse engineered to handle up to six indoor units at once. Ideal for larger homes or spaces with diverse climate needs, this ductless solution offers precise, room-by-room comfort without the complexity of traditional HVAC systems. At the heart of its performance is advanced inverter technology, which maximizes energy efficiency with SEER2 ratings as high as 24 and HSPF2-4 ratings up to 10.6. Whether it’s sweltering heat or freezing cold, this unit remains dependable—capable of operating in outdoor temperatures as low as 5°F.
Flexible compatibility with MRCOOL indoor unit styles—including sleek wall mounts, ceiling cassettes, and concealed duct models—ensures seamless integration with your home’s design. Ease of use is built into the experience. Control your climate with the intuitive MRCOOL SmartHVAC app, traditional remotes, or hands-free commands via Amazon Alexa and Google Assistant. Features such as sleep mode, auto restart, and refrigerant leak detection are designed to keep your system running smoothly, safely, and efficiently. With a 7-year compressor warranty and a 5-year parts warranty (when professionally installed), the Olympus MULTI6-48HP230C-O delivers high-capacity performance, intelligent control, and year-round reliability—perfect for those who need complete climate flexibility throughout a larger living space.
| Net Dimensions (In) | 16.34 D x 52.48 H x 37.48 W |
| Net Weight (Lbs) | 222 |
| SEER2 | Up to 24 |
| EER2 | Up to 12.5 |
| HSPF2-4 | 10.3 |
| HSPF2-5 | 8 |
| Tonnage | 4 |
| Cooling Capacity (Btu) | 47000 |
| Heating Capacity (Btu) | 48000 |
| Voltage (V) | 208/230 |
| Phase | 1 |
| Cycle | 60 |
| Max Fuse Breaker (A) | 40 |
| Min Circuit Ampacity (A) | 34 |
| Color | White |
| Max Coverage Area | Up to 2000 |
| Zone Capacity | 6 |
| Refrigerant Type | R-454B |
| Refrigerant Volume (Oz) | 148.15 |
| Decibel Rating (Dba) | 63 |
| Inverter | DC |
| Max Lineset Length (Ft) | 262.4 total |
| Lineset Fitting Type | Flare |
| Liquid Line Size | 6 x 1/4 |
| Suction Line Size | 4 x 3/8 + 2 x 1/2 |
| Compressor Motor Type | Rotary |
| Condenser Fan Motor Rpm | 800/700/650 |
| Metering Device | EXV |
| UL Listed | Yes |
| CSA Listed | Yes |
| ETL Listed | Yes |
| Energy Star Certified | Yes |
| AHRI Certified | Yes |
| Base Warranty | 5-Year Parts/7-Year Compressor |
| Base Parts Warranty | 5-Year |
| Base Compressor Warranty | 7-Year |
| Base Remote Warranty | 5 Year |
| Registered Labor Warranty | None |
| Base Labor Warranty | None |
| Has Batteries | Yes |
| Contains Electronics | Yes |
| Contains Chemicals | Yes |
| Contains Compressed Gas | Yes |
| Proposition 65 Warning | Yes |
| Restricted States | GU, PR, VI |
| Gross Depth (In) | 19.49 |
| Gross Height (In) | 58.27 |
| Gross Width (In) | 43.11 |
| Gross Weight (Lbs) | 254.19 |
The MRCOOL® OLYMPUS 9K CASSETTE provides dependable heating and cooling for spaces up to 400 square feet, making it perfect for bedrooms, home offices, and smaller areas. Designed to fit seamlessly into the ceiling for a flush look, it almost disappears, creating a clean, modern aesthetic that complements any room style. Its versatile design is perfect for homes or businesses looking to maximize space while maintaining an elegant, high-performance climate solution. The indoor fan operates at a quiet 42 dB, ensuring a peaceful environment without compromising performance. This ultra-low noise level means you can enjoy consistent, efficient heating or cooling without disruptive fan sounds, ideal for spaces where silence is crucial, like bedrooms, offices, or nurseries. The quiet operation helps enhance the overall comfort of your space, providing a relaxing atmosphere free from distractions.
The unit uses R-454B refrigerant, an eco-friendly solution that provides top-tier performance while being environmentally responsible. With low global warming potential, R-454B helps reduce the environmental impact of your system, contributing to a greener, more sustainable home, without sacrificing performance or efficiency. This refrigerant is an important choice for homeowners seeking to lower their carbon footprint while still enjoying reliable performance.
The MRCOOL® OLYMPUS 9K CASSETTE comes with a limited lifetime warranty, 7-year compressor coverage, and a 5-year parts warranty, ensuring reliability, cutting-edge technology, and peace of mind. This unit is the ideal solution for homeowners who value efficiency, comfort, and modern design.
| Net Dimensions (In) | 22.44 D x 9.65 H x 22.44 W |
| Net Weight (Lbs) | 35.27 |
| Tonnage | 0.75 |
| Voltage (V) | 208/230 |
| Phase | 1 |
| Cycle | 60 |
| Max Fuse Breaker (A) | 15 |
| Min Circuit Ampacity (A) | 3 |
| Mount Type | Ceiling |
| Color | White |
| Max Coverage Area | Up to 400 |
| Refrigerant Type | R-454B |
| Decibel Rating (Dba) | 42.5/40/37.5/26/24 |
| Decibel Rating Low (Dba) | 24 |
| Decibel Rating High (Dba) | 42.5 |
| Air Flow Direction | Downflow |
| Number Of Speeds | 5 (Variable) |
| Oscillation | Yes |
| Lineset Fitting Type | Flare |
| Liquid Line Size | 4-Jan |
| Suction Line Size | 8-Mar |
| Blower Motor Speeds | 353.2/312/264.9/182.5/147.2 |
| Blower Motor Rpm | 600/530/380 |
| Filter Type | Reusable |
| Auxiliary Heater Included | No |
| Auxiliary Heater Available | No |
| Fan Only Option | Yes |
| Sleep Mode | Yes |
| Auto Cool | Yes |
| Wifi Compatibility | No |
| App Compatibility | No |
| Works With Ios | No |
| Works With Android | No |
| Remote Control Included | Yes |
| UL Listed | Yes |
| CSA Listed | Yes |
| ETL Listed | Yes |
| Base Warranty | 5-Year Parts |
| Base Parts Warranty | 5-Year |
| Base Remote Warranty | 5 Year |
| Registered Labor Warranty | None |
| Base Labor Warranty | None |
| Has Batteries | Yes |
| Contains Electronics | Yes |
| Contains Chemicals | Yes |
| Contains Compressed Gas | Yes |
| Proposition 65 Warning | Yes |
| Restricted States | GU, PR, VI |
| Gross Weight (Lbs) | 41.89 |
What BTU rating should I choose for my air handler?
| Air Handler BTU | Coverage Area/Room Size (Sq. Ft.)* |
| 6K |
Up to 200 Sq. Ft.
|
| 9K |
Up to 375 Sq. Ft.
|
| 12K | Up to 500 Sq. Ft. |
| 18K | Up to 750 Sq. Ft. |
| 24k | Up to 1,000 Sq. Ft. |
| 36k | Up to 1,500 Sq. Ft. |
*Ceiling height, insulation, and local climate may impact the coverage area. For example, an uninsulated room will require more power than a well insulated room.
