High-capacity 5-zone wall mount ductless mini split system engineered for tailored room climate, superior energy savings, and dependable year-round temperature control.
Experience total comfort flexibility with the MRCOOL DIY 5th Generation Multi-Zone Series Wall Mount Mini Split. This high-performance 5-zone system combines a powerful 48,000 BTU outdoor condenser with five high-performance wall-mounted indoor air handlers, featuring one 6,000 BTU unit designed for spaces up to 250 sq. ft., one 9,000 BTU unit designed for spaces up to 400 sq. ft., and three 12,000 BTU units designed for spaces up to 600 sq. ft. each. Ideal for dynamic home layouts, this setup provides separate climate management, whisper-quiet performance, and a sleek profile that blends seamlessly into any room.
Why customers choose the MRCOOL 5 Zone
- Simple DIY Setup — Complete the installation yourself utilizing MRCOOL's innovative Quick Connect technology. Pre-charged line sets and straightforward fittings bypass the requirement for complex HVAC tools, saving you considerable professional installation costs.
- Sleek Wall-Mounted Profile — The indoor air handlers mount cleanly onto your wall, integrating smoothly with your interior design while delivering balanced, multi-directional airflow.
- Customized Multi-Zone Control — The robust outdoor condenser powers all five included wall units concurrently, empowering you to tailor individual room temperatures and comfort preferences precisely where desired. The 6,000 BTU air handler is designed for spaces up to 250 sq. ft., the 9,000 BTU air handler is designed for spaces up to 400 sq. ft., and each 12,000 BTU air handler is designed for spaces up to 600 sq. ft.
- Smart Energy Savings — State-of-the-art inverter technology dynamically modulates performance to sustain your preferred temperature efficiently, helping lower monthly utility expenses.
- Quiet Daily Operation — Engineered for low-noise performance, the indoor units deliver dependable heating and cooling without disruption, making them perfect for bedrooms, living areas, and open-concept spaces.
Control your comfort from anywhere
Integrated Wi-Fi connectivity enables you to manage your mini split remotely using the MRCOOL Smart HVAC app on your smartphone or smart device. Modify temperatures, alter modes, program custom schedules, and oversee your indoor climate whether you are relaxing at home or away.
Reliable heating during cooler weather
Built for four-season comfort, this heat pump delivers robust heating capacity during chilly days and maintains efficient operation across shifting outdoor seasonal environments.
What’s included
- MRCOOL DIY 5th Generation Ductless Mini Split Outdoor Condenser (DIY-MULTI6-48HP-230)
- MRCOOL DIY 5th Generation Wall Mount Indoor Air Handlers (Includes one DIY-06-WMAH air handler, one DIY-09-WMAH air handler, and three DIY-12-WMAH-3 air handlers)
- Quick Connect Line Sets and Installation Components
- Drain Hose
- Air Filters
- Wireless Remote Controls
- Owner's Manual, Guides, and Other Documents
Recommended Accessories
- 30" Wall Mount Bracket for Mini Split Systems
- Cielo Breeze Max Mini Split Thermostat with WiFi, SKU: BM101WA
- Installation Kit
• 3/4" x 6' Electrical Whip – SKU: 84138
• 60A Non-Fused Disconnect – SKU: 83335
• Surge Protector – SKU: ICM517
• CPS Charging Adapter – SKU: 87-AD87
• Telescoping Wall Sleeve – SKU: NFP-75
- Additional line set options with a coupler
• Coupler - DIYCOUPLER-1438K75C
• 16 ft – DIY16-1438-O
• 25 ft – DIY25-1438-O
• 35 ft – DIY35-1438C-O
• 50 ft – DIY50-1438C-O
Warranty
MRCOOL offers a 7-Year Compressor / 5-Year Parts limited warranty when installed according to manufacturer guidelines.
48,000 BTU MRCOOL 6 Zone Condenser - R454B
Powerful Multi-Zone Comfort With Easy DIY Installation
Bring customizable year-round comfort to multiple areas of your home with the MRCOOL DIY 5th Generation 48,000 BTU 6-Zone Multi-Zone Mini Split Heat Pump Condenser. Designed to support up to six compatible indoor air handlers, this outdoor unit can provide heating and cooling for spaces up to 2,500 square feet. With up to 21.8 SEER2 efficiency, R454B refrigerant, smart connectivity, and Quick Connect technology, it delivers flexible comfort with a simplified DIY installation experience.
Key Features
- Flexible 6-Zone Comfort — Supports up to six compatible indoor air handlers, allowing customized temperature control across multiple rooms and living areas.
- High-Efficiency Performance — With up to 21.8 SEER2 efficiency, the system is designed to deliver dependable year-round comfort while helping manage energy use.
- DIY-Friendly Installation — Pre-charged Quick Connect line sets with R454B refrigerant help simplify installation by eliminating the need for a vacuum pump during setup.
- Smart, Connected Control — Smartphone app capabilities provide convenient temperature management, with Amazon Alexa and Google Assistant compatibility for added flexibility.
Warranty
MRCOOL offers a limited warranty of 2-Year Compressor / 1-Year Parts Warranty* when installed according to manufacturer guidelines.
6,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B6,000 BTU MRCOOL DIY 5th Generation Single Zone Wall Mount Mini Split Air Handler - R454B | 230V
Compact, Convenient Cooling With Easy DIY Installation
Bring reliable year-round comfort to smaller spaces with the MRCOOL DIY 5th Generation 6,000 BTU Single Zone Wall Mount Mini Split Air Handler. Designed for use with a compatible MRCOOL DIY condenser, this indoor unit provides heating and cooling for spaces up to 250 square feet. Its wall-mounted design, included remote, SmartHVAC app compatibility, and DIYPRO cable make it a convenient choice for bedrooms, home offices, nurseries, and other compact areas.
Key Features
- Compact Comfort — The 6,000 BTU capacity is designed for smaller rooms and zones, providing dependable temperature control without taking up valuable floor space.
- DIY-Friendly Installation — The included DIYPRO cable helps simplify electrical installation, while MRCOOL's DIY system is designed for easier setup.
- Smart Temperature Control — Use the included wireless remote or SmartHVAC app to conveniently adjust your comfort settings, with Amazon Alexa and Google Assistant compatibility for added flexibility.
- Convenient Airflow Control — Multi-speed fan settings allow you to adjust airflow to suit your comfort preferences.
Warranty
MRCOOL offers a 7-Year Compressor / 5-Year Parts limited warranty when installed according to manufacturer guidelines.
9,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454BMRCOOL® 9k DIY 5th Generation Mini-Split Air Handler 230v
The MRCOOL® 9k DIY 5th Generation Mini-Split Air Handler offers powerful, energy-efficient heating and cooling for small to mid-sized spaces. Engineered with the do-it-yourself homeowner in mind, this 230-volt unit combines superior performance with simplified installation and smart home compatibility. It is part of the advanced 5th Generation MRCOOL® DIY lineup, bringing comfort, control, and convenience to your fingertips.
Key Features:
- High Efficiency: Delivers a strong balance of comfort and energy savings with high SEER2 performance ratings.
- Easy DIY Installation
- Smart Home Ready: Works with the MRCOOL® SmartHVAC app and is compatible with Amazon Alexa and Google Assistant.
- Quiet Operation: Minimizes indoor noise for enhanced comfort and relaxation.
- Auto Restart: Automatically resumes operation after a power outage with previous settings restored.
- Multiple Modes: Offers heating, cooling, dehumidification, and fan-only modes to adapt to varying climate needs.
- Compact Wall-Mount Design: Saves space while delivering effective room-wide air circulation.
Specifications:
- Model Number: DIY-09-HP-WMAH-230D25-O
- Voltage: 230V
- Cooling/Heating Capacity: 9,000 BTU
- Refrigerant Type: R-454B
- Mounting: Wall-mounted
Whether you're upgrading your comfort system or outfitting a new area, the MRCOOL 9k DIY Mini-Split Air Handler provides reliable performance, energy efficiency, and easy installation. It’s the perfect choice for those looking for comfort without the hassle of traditional HVAC setups.
12,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B12,000 BTU MRCOOL DIY 5th Generation Single Zone Wall Mount Mini Split Air Handler - R454B | 230V
Efficient, Convenient Comfort With Easy DIY Installation
Enjoy reliable year-round comfort with the MRCOOL DIY 5th Generation 12,000 BTU Single Zone Wall Mount Mini Split Air Handler. Designed for use with a compatible MRCOOL DIY condenser, this indoor unit provides heating and cooling for spaces up to 600 square feet. With a sleek wall-mounted design, DIY-friendly installation features, Wi-Fi and smartphone app capabilities, and convenient airflow controls, it offers an easy way to manage comfort in bedrooms, living rooms, offices, and other medium-sized spaces.
Key Features
- Comfort for Medium-Sized Spaces — The 12,000 BTU capacity provides dependable heating and cooling for individual rooms and zones.
- DIY-Friendly Installation — Designed for use with MRCOOL DIY systems to simplify installation and reduce the complexity of traditional HVAC setups.
- Smart Temperature Control — Wi-Fi and smartphone app capabilities provide convenient control, while compatible voice assistants offer additional flexibility.
- Versatile Operation — Cooling, heating, fan-only, and dehumidification modes provide flexible comfort throughout the year.
Warranty
MRCOOL offers a limited warranty of 2-Year Compressor / 1-Year Parts Warranty* when installed according to manufacturer guidelines.
16ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor - R454BDIY16-1438-O 16ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor - R454B
The MRCOOL DIY16-1438-O is a pre-charged 16-foot line set designed specifically for MRCOOL DIY 6K, 9K, and 12K indoor units using R-454B refrigerant. It is engineered to simplify installation for homeowners and HVAC professionals alike, while maintaining efficiency and refrigerant integrity without the need for vacuuming or charging.
This lineset offers a flexible, durable, and easy-to-connect solution that supports the revolutionary MRCOOL DIY ductless mini-split systems. The Quick Connect® fittings provide a secure and tight seal, ensuring a hassle-free installation and long-term reliability.
Key Features:
- Length: 16 feet of pre-charged copper tubing
- Line Sizes: 1/4 inch liquid line and 3/8 inch suction line
- Refrigerant: Pre-charged with environmentally friendly R-454B
- Compatibility: Designed for use with MRCOOL DIY 6K, 9K, and 12K indoor units
- Connection Type: Quick Connect fittings for fast, tool-free installation
- Insulation: High-quality insulation for efficient thermal performance and reduced energy loss
- Corrosion Resistance: Durable construction resists environmental wear and corrosion
This lineset is ideal for both first-time installations and replacements, ensuring optimal performance and easy integration with compatible MRCOOL® systems. With a 100% DIY approach, this component allows users to complete professional-level installations without special tools or equipment.
17" Wall Mount Bracket for Mini Split SystemsThis wall mount bracket is perfect for outdoor mini split condensers. The length of the the wall bracket arms are 17” long. The condensing unit is mounted onto the L-shaped brackets and fastened using the bolts and anti-vibration washers provided.
Features:
- 17” Arm Length
- Weight capacity of 220 lbs per arm
- Bolts and anti-vibration washers included
No Return Policy
All sales of this product are final and are non-refundable.
Installation Kit for CondensersEnsure a professional and secure installation for your condenser with this comprehensive installation kit. Designed to provide all the essential components needed for a smooth setup, this kit helps protect your system while ensuring proper electrical and refrigerant connections.
What’s Included:
- 3/4" x 6' Electrical Whip – SKU: 84138
- 60A Non-Fused Disconnect – SKU: 83335
- Surge Protector – SKU: ICM517
- CPS Charging Adapter – SKU: 87-AD87
- Telescoping Wall Sleeve – SKU: NFP-75
Equip your condenser with everything needed for a safe, durable, and professional installation. Order your Condenser Installation Kit today!
25ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor - R454B DIY25-1438-O 25ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor - R454B
The MRCOOL DIY25-1438-O is a 25-foot pre-charged line set engineered for easy installation with MRCOOL DIY 6K, 9K, and 12K indoor units that utilize R-454B refrigerant. This lineset offers an efficient, mess-free solution for both homeowners and professionals who want a clean and secure HVAC connection without the need for vacuum pumps or refrigerant handling.
Equipped with Quick Connect fittings, this lineset simplifies the installation process by providing a tight, reliable seal—eliminating the need for special tools. The pre-charged refrigerant lines and durable insulation deliver excellent performance and energy efficiency in a wide range of settings.
Key Features:
- Length: 25 feet of pre-charged copper tubing
- Line Sizes: 1/4 inch liquid line and 3/8 inch suction line
- Refrigerant: Pre-charged with eco-friendly R-454B refrigerant
- Compatibility: Works with MRCOOL DIY 6K, 9K, and 12K indoor units
- Connection Type: Quick Connect fittings for tool-free installation
- Insulation: High-quality insulation for optimized thermal performance and protection
- Construction: Built with corrosion-resistant materials for long-term durability
Perfect for extending the installation distance or replacing an existing lineset, the DIY25-1438-O provides a flexible and user-friendly option for MRCOOL® mini-split systems. Its DIY design ensures users can achieve a professional-grade setup with minimal effort and maximum confidence.
35ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable - R454BDIY35-1438C-O 35ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor with DIY Pro Cable - R454B
The MRCOOL® DIY35-1438C-O is a 35-foot pre-charged lineset with an integrated DIY Pro Cable, engineered for compatibility with MRCOOL DIY 6K, 9K, and 12K indoor units using R-454B refrigerant. This advanced installation component simplifies setup while delivering excellent durability, refrigerant integrity, and safety.
Equipped with patented Quick Connect fittings, this lineset allows for a hassle-free, tool-free connection between indoor and outdoor units. The added DIY Pro Cable enhances reliability and safety during installation, offering pre-attached wiring in a single bundled solution. It's the ideal choice for extended installations requiring both performance and convenience.
Key Features:
- Length: 35 feet of pre-charged copper tubing
- Line Sizes: 1/4 inch liquid line and 3/8 inch suction line
- Refrigerant: Pre-charged with R-454B refrigerant for environmentally responsible performance
- Compatibility: Designed for MRCOOL DIY 6K, 9K, and 12K indoor units
- Connection Type: Quick Connect fittings for easy and secure installation
- Pro Cable: Integrated DIY Pro Cable for simplified wiring and increased safety
- Insulation: High-quality insulation ensures efficiency and protection from condensation
- Durability: Built with corrosion-resistant materials for long-term use
The DIY35-1438C-O is the perfect solution for users seeking an extended lineset with built-in power and communication cabling. Its all-in-one design streamlines setup and supports reliable performance in MRCOOL® DIY mini-split systems.
50ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable - R454B DIY50-1438C-O 50ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor with DIY Pro Cable - R454B
The MRCOOL® DIY50-1438C-O is a 50-foot pre-charged lineset with an integrated DIY Pro Cable, designed for use with MRCOOL DIY 6K, 9K, and 12K indoor units using R-454B refrigerant. This extended-length lineset offers a convenient, all-in-one solution for efficient and reliable HVAC installations.
Featuring patented Quick Connect fittings, this lineset enables a quick and secure connection between indoor and outdoor units without specialized tools. The integrated DIY Pro Cable streamlines wiring and enhances installation safety, making it ideal for professional-quality DIY projects.
Key Features:
- Length: 50 feet of pre-charged copper tubing
- Line Sizes: 1/4 inch liquid line and 3/8 inch suction line
- Refrigerant: Pre-charged with eco-friendly R-454B refrigerant
- Compatibility: Suitable for MRCOOL DIY 6K, 9K, and 12K indoor units
- Connection Type: Quick Connect fittings for easy, tool-free installation
- Pro Cable: Integrated DIY Pro Cable for simplified wiring and enhanced safety
- Insulation: High-quality insulation to improve energy efficiency and prevent condensation
- Durability: Constructed with corrosion-resistant materials for lasting performance
This 50-foot lineset with integrated Pro Cable is perfect for installations requiring longer reach and professional-grade convenience. It ensures reliable operation and an efficient setup for MRCOOL® DIY mini-split systems.
16ft 1/4 x 1/2 Line Set for DIY 18K Indoor - R454BDIY16-1412-O 16ft 1/4 x 1/2 Lineset for DIY 18K Indoor - R454B
The MRCOOL DIY16-1412-O is a 16-foot pre-charged lineset designed for MRCOOL® DIY 18K indoor units using R-454B refrigerant. This lineset offers an easy-to-install, reliable solution that eliminates the need for vacuum pumps or refrigerant charging.
Featuring Quick Connect fittings, it allows for quick, tool-free connections between indoor and outdoor units. The durable insulation and corrosion-resistant copper tubing provide excellent thermal performance and long-lasting durability.
Key Features:
- Length: 16 feet of pre-charged copper tubing
- Line Sizes: 1/4 inch liquid line and 1/2 inch suction line
- Refrigerant: Pre-charged with eco-friendly R-454B refrigerant
- Compatibility: Compatible with MRCOOL DIY 18K indoor units
- Connection Type: Quick Connect fittings for tool-free installation
- Insulation: High-quality insulation to prevent condensation and improve energy efficiency
- Durability: Built with corrosion-resistant materials for extended service life
This lineset is an ideal choice for extending or replacing refrigerant lines in MRCOOL® DIY mini-split systems, providing an efficient and hassle-free installation.
25ft 1/4 x 1/2 Line Set for DIY 18K Indoor - R454BDIY25-1412-O 25ft 1/4 x 1/2 Lineset for DIY 18K Indoor - R454B
The MRCOOL® DIY25-1412-O is a 25-foot pre-charged lineset designed for MRCOOL DIY 18K indoor units using R-454B refrigerant. This lineset offers a convenient and reliable solution that eliminates the need for vacuum pumps or refrigerant charging during installation.
Featuring Quick Connect fittings, it enables quick, tool-free connections between indoor and outdoor units. The durable insulation and corrosion-resistant copper tubing ensure optimal thermal efficiency and long-lasting performance.
Key Features:
- Length: 25 feet of pre-charged copper tubing
- Line Sizes: 1/4 inch liquid line and 1/2 inch suction line
- Refrigerant: Pre-charged with eco-friendly R-454B refrigerant
- Compatibility: Compatible with MRCOOL DIY 18K indoor units
- Connection Type: Quick Connect fittings for easy installation
- Insulation: High-quality insulation to prevent condensation and improve energy efficiency
- Durability: Built with corrosion-resistant materials for extended lifespan
This lineset is an excellent choice for extending or replacing refrigerant lines in MRCOOL® DIY mini-split systems, providing hassle-free installation and dependable operation.