We’re excited to introduce our new 5th Generation MRCOOL® DIY® 48k BTU Multi-Zone Ductless Mini-Split Condenser, because it’s better than its predecessor in nearly every way. You won’t need the services of an HVAC professional when you’re setting this unit up, because you can do it yourself, which saves lots of time and money! This condenser enables you to heat and cool up to 6 separate spaces equalling up to 2,000 sq. ft., meaning you’d be able to cover an entire home in the completely efficient comfort of a single DIY® system.
You can install this system on your own because our innovative, patented pre-charged Quick Connect® line sets allow you to skip the lengthy and complicated process of evacuating and charging the system. These line sets are filled with R-454B refrigerant, a much more ecological and proficient upgrade from the previous refrigerant used in the last generation. This switch helps the system achieve impressive efficiency levels, like 21.8 SEER2 and an HSPF2-4 of 10. Once you install your system, you’ll be able to explore the variety of ways you can customize your comfort. For ultimate control, you can integrate system operations with the SmartHVAC app, available for Apple and Android phones, allowing you the ability to set schedules, manage modes of operation, monitor your systems all with the touch of a button.
The app even enables you to set up integration with Amazon Alexa and Google Home, meaning you won’t have to move a finger to make your home more comfortable than ever. We pride ourselves on having one of the best warranties in the industry on this unit! Once you install your condenser, you’re entitled to a 5 year parts warranty, a 7 year compressor warranty, and, if you subscribe to the MRCOOL® Care Program, a Limited Lifetime Replacement warranty. The MRCOOL® DIY® is the right choice if you want fast, efficient comfort that won’t let you down!
| DIMENSIONS & WEIGHT | |
|---|---|
| Dimensions | 16.34" D x 52.48" H x 37.48" W |
| GENERAL INFORMATION | |
| Color | White |
| Inverter | DC |
| Quiet Mode | Yes |
| Contans Chemicals | Yes |
| CAPACITY & PERFORMANCE | |
| SEER2 | 21.8 |
| EER2 | 12 |
| HSPF2-4 | 10 |
| HSPF2-5 | 7.8 |
| Tonnage | 4 |
| Cooling Capacity (BTU) | 43000 |
| Heating Capacity (BTU) | 48000 |
| Cycle | 60 |
| Zone Capacity | 6 |
| COMPRESSOR & MOTORS | |
| Compressor Motor Type | Rotary |
| NOISE LEVELS | |
| Decibel Rating (DBA) | 64 |
| ELECTRICAL REQUIREMENTS | |
| Voltage (V) | 208/230 |
| Phase | 1 |
| Max Fuse Breaker (A) | 45 |
| Min Circuit Ampacity (A) | 40 |
| REFRIGERANT & PIPING | |
| Refrigerant Type | R-454B |
| Refrigerant Volume (OZ) | 148.15 |
| Line Set Length | 25 |
| Max Lineset Length (FT) | 221.4 |
| Liquid LIne Size | 1/4 |
| Suctio Line Size | (3/8 X4) (1/2 X2) |
| FILTER & HEATING | |
| Auxiliary Heater Included | No |
| Auxiliary Heater Available | No |
| CONTROLS & CONNECTIVITY | |
| Fan Only Option | Yes |
| Auto Cool | Yes |
| WIFI Compatibility | Yes |
| APP Compatibility | Yes |
| Works with IOS | Yes |
| Works with Android | Yes |
| SAFETY | |
| UL Listed | Yes |
| ETL Listed | Yes |
| Energy Star Certified | Yes |
| AHRI Certified | Yes |
| Has Batteries | Yes |
| Contains Electronics | Yes |
| Contains Aerosol | Yes |
| Contains Compressed Gas | Yes |
| Proposition 65 Warning | Yes |
| WARRANTY | |
| Registered Warranty | Extended Limited Lifetime* |
| Base Parts Warranty | 5 |
| Base Compressor Warranty | 7 |
The 5th Generation MRCOOL® DIY® 12K BTU Ductless Mini-Split Heat Pump is an efficient and versatile climate control solution for spaces up to 550 sq. ft. Designed with homeowners in mind, this system offers a true DIY installation process, eliminating the need for specialized tools or professional assistance. This makes setup quick, straightforward, and cost-effective. One of its standout features is the pre-charged 25-foot DIY® QuickConnect® line set, pre-filled with R-454B refrigerant.
This eliminates the need for vacuuming, significantly reducing installation time and expenses. The included DIYPRO® cable further streamlines installation by removing the need for electrical conduit while also offering enhanced durability and protection against the elements. Operating the system is simple and convenient, with multiple control options available. Adjust temperature settings with the wireless remote, the SmartHVAC app for iOS and Android devices, or hands-free voice commands via Amazon Alexa and Google Assistant. For personalized comfort, the Follow Me function ensures consistent temperature regulation by adjusting airflow based on the remote’s location, while Dry Mode helps control excess humidity.
Built for longevity, the Gold Fin® Condenser provides superior corrosion resistance, making it ideal for coastal environments. Supported by industry-leading warranties—including a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty—this MRCOOL® DIY® system delivers reliable, year-round comfort with smart features and effortless installation.
| DIMENSIONS & WEIGHT | |
|---|---|
| Dimensions | 7.44" D x 11.63" H x 31.57" W |
| GENERAL INFORMATION | |
| Mount Type | Wall |
| Color | White |
| Max Coverage Area | 550 sqft |
| Oscillation | Yes |
| Quiet Mode | Yes |
| CAPACITY & PERFORMANCE | |
| Cycle | 60 |
| ELECTRICAL REQUIREMENTS | |
| Voltage (V) | 208/230 |
| Phase | 1 |
| FILTER & HEATING | |
| Filter Type | Reusable |
| Auxiliary Heater Included | No |
| Auxiliary Heater Available | No |
| CONTROLS & CONNECTIVITY | |
| Fan Only Option | Yes |
| Auto Cool | Yes |
| WIFI Compatibility | Yes |
| APP Compatibility | Yes |
| Works with IOS | Yes |
| Works with Android | Yes |
| Remote Control Included | Yes |
| SAFETY | |
| UL Listed | Yes |
| ETL Listed | Yes |
| AHRI Certified | Yes |
| Has Batteries | Yes |
| Contains Electronics | Yes |
| Contains Chemicals | Yes |
| Contains Aerosol | Yes |
| Contains Compressed Gas | Yes |
| Proposition 65 Warning | Yes |
| WARRANTY | |
| Registered Warranty | Extended Limited Lifetime* |
| Base Parts Warranty | 5 |
| Base Compressor Warranty | 7 |
The 5th Generation MRCOOL® DIY® 18k BTU Ductless Heat Pump Single Zone Mini-Split Air Handler delivers powerful, energy-efficient heating and cooling for spaces up to 800 sq. ft. Designed for easy, tool-free installation, this system requires no professional experience, specialized tools, or costly service calls—making it a fast and affordable comfort solution for homeowners.
This model features the rugged DIYPRO® cable, which eliminates the need for traditional electrical conduit while offering added durability and protection against outdoor elements, animals, and harsh weather conditions. Installation is not only simplified but also built to last. You can manage your comfort your way. Use the included wireless remote, connect through the SmartHVAC app available on iOS and Android devices, or control the system using voice commands via Amazon Alexa and Google Assistant. The Gold Fin® condenser coating enhances corrosion resistance, making the unit a great fit for coastal or high-humidity areas.
The system also includes advanced comfort features. Follow Me® technology senses the temperature around the remote and adjusts airflow accordingly, ensuring consistent comfort where you are. Dry Mode reduces humidity for better air quality and comfort. To protect your investment, MRCOOL® offers a strong 7-year compressor and 5-year parts warranty, and is also eligible for the MRCOOL® Care Program. Experience hassle-free installation, advanced features, and reliable year-round comfort with the MRCOOL® DIY® 18k Mini-Split Air Handler.
| DIMENSIONS & WEIGHT | |
|---|---|
| Dimensions | 8.9" D x 13.19" H x 42.52" W |
| Net Weight (Lbs) | 35.49 |
| Gross Depth (In) | 17.68 |
| Gross Height (In) | 14.29 |
| Gross Width (In) | 46.73 |
| Gross Weight (Lbs) | 49.6 |
| GENERAL INFORMATION | |
| Mount Type | Wall |
| Color | White |
| Max Coverage Area | 800 sqft |
| Number of Speeds | 5 |
| Oscillation | Yes |
| Quiet Mode | Yes |
| CAPACITY & PERFORMANCE | |
| Tonnage | 1.5 |
| Cycle | 60 |
| NOISE LEVELS | |
| Decibel Rating Low (DBA) | 19 |
| Decibel Rating High (DBA) | 54.5 |
| ELECTRICAL REQUIREMENTS | |
| Voltage (V) | 208/230 |
| Phase | 1 |
| Max Fuse Breaker (A) | 15 |
| Min Circuit Ampacity (A) | 3 |
| REFRIGERANT & PIPING | |
| Liquid Line Size | 1/4 |
| Suction Line Size | 1/2 |
| FILTER & HEATING | |
| Filter Type | Reusable |
| Auxiliary Heater Included | No |
| Auxiliary Heater Available | No |
| CONTROLS & CONNECTIVITY | |
| Fan Only Option | Yes |
| Auto Cool | Yes |
| WIFI Compatibility | Yes |
| APP Compatibility | Yes |
| Works with IOS | Yes |
| Remote Control Included | Yes |
| SAFETY | |
| UL Listed | Yes |
| ETL Listed | Yes |
| AHRI Certified | Yes |
| Has Batteries | Yes |
| Contains Electronics | Yes |
| Contains Chemicals | Yes |
| Contains Aerosol | Yes |
| Contains Compressed Gas | Yes |
| Proposition 65 Warning | Yes |
| WARRANTY | |
| Registered Warranty | Extended Limited Lifetime* |
| Base Parts Warranty | 5 |
| Base Compressor Warranty | 7 |
This remote is included with each air handler in MRCOOL's 5th Generation DIY or Advantage Mini Split Systems.
| DIMENSIONS | |
|---|---|
| Dimensions | 2" W x 6" L x 1" H |
| GENERAL INFORMATION | |
| Color | White |
| Works with | MRCOOL DIY 5th Generation Mini Splits |
| Restricted States |
|
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.
