We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
1-800-397-1392
Today's Hours 8am - 11pm estMRCOOL DIY Select 12,000 BTU 17.5 SEER2 Single Zone White Wall Mounted Mini Split Heat Pump System with 11.5 ft. Line Set – R454B | 115V
Required Fields *
By
MRCOOL
In stock
Model
DIYS-12-HP-115A11-O
ID
236288
Was $1,650.00
Your Low Price $1,399.00
Product Features
- True DIY Installation with Quick Connect Line Set
- 12,000 BTU Comfort For Up To 600 Sq Ft
- Efficient Comfort With 17.5 SEER2 Performance
- WiFi Enabled with Smart App Control
- Includes 11.5 Ft Pre-Charged Line Set
- Quiet Indoor Comfort
Energy-Efficient Ductless System with Simple DIY Installation and Reliable Year-Round Comfort
Upgrade your home's comfort with the MRCOOL DIY Select Series Mini Split featuring an 11.5 ft. Quick Connect Line Set. Designed to heat and cool spaces up to 600 sq. ft., this 12,000 BTU ductless system delivers efficient performance while making installation easier than traditional HVAC systems.
Ideal for bedrooms, living rooms, home offices, apartments, sunrooms, and other medium-sized spaces, the Select Series combines energy-saving inverter technology with a DIY-friendly design for dependable comfort throughout every season.
Why Homeowners Choose the Select Series
- DIY-Friendly Installation: The included Quick Connect® pre-charged line set helps simplify installation without requiring vacuum pumps, refrigerant charging, or specialized HVAC tools.
- Year-Round Heating and Cooling: The 12,000 BTU heat pump delivers dependable heating and cooling for spaces up to 600 sq. ft., helping maintain a comfortable indoor environment in every season.
- Energy-Efficient Performance: A 17.5 SEER2 inverter system automatically adjusts output to help improve efficiency while maintaining consistent indoor comfort.
- Quiet Everyday Operation: Low-noise performance makes this system an excellent choice for bedrooms, home offices, nurseries, and other living spaces where quieter operation is appreciated.
Includes 11.5 ft. Quick Connect Pre-Charged Line Set
The included 11.5 ft. Quick Connect pre-charged line set arrives ready to install, eliminating the need for refrigerant charging, vacuuming, or specialized HVAC equipment. This streamlined design helps reduce installation time and makes DIY installation more accessible.
Control Your Comfort from Anywhere
Built-in Wi-Fi connectivity allows you to manage your system remotely using the SmartHVAC app on your compatible smartphone or tablet. Adjust temperatures, change operating modes, create schedules, and control your comfort whether you're home or away.
Reliable Heating in Cooler Temperatures
Engineered for dependable year-round performance, this heat pump provides reliable heating in outdoor temperatures as low as -13°F. Advanced inverter technology continuously adjusts system output to help maintain a comfortable indoor environment during changing weather conditions.
What’s Included
- MRCOOL DIY Select 12,000 BTU Ductless Mini Split Outdoor Condenser (DIYS-12-HP-C-115A11-O)
- MRCOOL DIY Select 12,000 BTU Ductless Mini Split Indoor Air Handler (DIYS-12-HP-WMAH-115A13-O)
- 11.5 ft. Pre-Charged Quick Connect Line Set
- 13-Foot Communication Cable
- Drain Hose
- Air Filter
- Wireless remote control
- Owner's Manual, Guides, and Other Documents
Recommended Accessories
- 17" Wall Mount Bracket for Mini Split Systems
- Cielo Breez 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- NVCOUPLER-3834 • 16ft- DIY16-1438-O • 25 ft-DIY25-1438-O • 35 ft-DIY35-1438C-O • 50 ft- DIY50-1438C-O
Warranty
MRCOOL offers a limited warranty of 2-Year Compressor / 1-Year Parts Warranty* when installed according to manufacturer guidelines.
12,000 BTU MRCOOL Single Zone Condenser - R454B
Enjoy Efficient Comfort Year-Round With an Easy-To-Install Outdoor Condenser Unit
Boost your comfort with the MRCOOL DIY 12,000 BTU Select Single Zone Mini Split Heat Pump Condenser — this outdoor unit is built to deliver efficient, year-round heating and cooling for spaces up to 600 square feet. Designed for homeowners who want flexibility, performance, and a simpler install process, this condenser pairs dependable comfort with true DIY convenience. It connects seamlessly with the compatible MRCOOL DIY Select indoor air handler (DIYS-12-HP-WMAH-115A13-O).
Key Features
- Efficient Year-Round Comfort — Delivers dependable heating and cooling performance for bedrooms, offices, and other medium-sized spaces.
- Designed for DIY Installation — Comes included with MRCOOL’s 11.5 ft. pre-charged Quick Connect line set to reduce installation barriers.
- Quiet Outdoor Performance — With low-noise operation that helps maintain a more comfortable and relaxing home environment.
Warranty
MRCOOL offers a limited warranty of 2-Year Compressor / 1-Year Parts Warranty* when installed according to manufacturer guidelines.
12,000 BTU MRCOOL Wall Mounted Air Handler - R454B
Year-Round, Personalized Comfort From an Air Handler That's Simple to Install
Upgrade your space with the MRCOOL DIY 12,000 BTU Select Single Zone Wall Mounted Mini Split Air Handler, built to provide dependable, efficient heating and cooling year-round for rooms up to 600 square feet. With straightforward DIY setup and near-silent operation, this indoor unit brings tailored comfort to bedrooms, home offices, apartments, and other smaller living spaces.
Key Features
- Performance That Pays Off — Paired with a compatible MRCOOL DIY Select condenser (DIYS-12-HP-C-115A11-O), this unit boosts comfort while keeping energy use in check.
- Just-Right Comfort for Your Space — With a 12,000 BTU capacity, it's built for bedrooms, home offices, nurseries, and other living spaces, providing even, consistent heating and cooling.
- Built for Easy DIY Setup — Compatible with MRCOOL Quick Connect line sets, simplifing the install process, cutting out much of the hassle of conventional HVAC setups.
- Whisper-Quiet Performance — With sound levels as low as 17.5 dB(A), it keeps your space comfortable without the noise.
Warranty
MRCOOL offers a limited 1-Year Parts Warranty* when installed according to manufacturer guidelines.
16ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor - R454B
DIY16-1438-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 Systems
This 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.
Cielo Breez Max Mini Split Thermostat with WiFi
Introducing Cielo Breez Max, the ultimate smart thermostat for your mini-splits, designed to elevate your comfort with intelligent climate control. Transform your air conditioner into a smart powerhouse and manage your cooling or heating from anywhere using your phone. This award-winning device, available in black and white, prevents overheating or overcooling with AI-powered Comfy Max, while seamlessly detecting any mini-split brand for hassle-free setup.
Features:
- Energy Savings
- WiFi Connectivity
- Weekly Schedule
- Geofencing
- Temperature Range Lock
- Real-Time Notifications
- HVAC Zoning
Weekly Schedule lets you set on and off periods throughout the week based on your needs.
Geofencing uses your smartphone's location to trigger actions in your system, such as turning the air conditioner on or off based on your proximity to home.
Temperature Range Lock ensures your air conditioner operates within a set temperature range for optimal comfort and efficiency.
Real-Time Notifications keep you informed with important updates, helping you manage your air conditioner better.
HVAC Zoning allows you to create customized temperature control zones by grouping multiple mini-split units.
The Cielo Breez Max offers innovative features and extraordinary performance, making it a perfect fit for any room air conditioner. Enjoy maximum energy savings and simplified home comfort with this advanced smart thermostat.
Installation Kit for Condensers
4Ensure 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.
Key Features:
✔ All-in-One Kit: Includes key accessories for a professional-grade installation.
✔ Enhanced System Protection: Features a surge protector and disconnect safety switch for added safety.
✔ Reliable Electrical Connections: Comes with a whip and charging adapter to ensure proper power supply.
✔ Secure Wall Penetration: Telescoping wall sleeve protects and stabilizes refrigerant and electrical lines.
✔ HVAC Professional Recommended: Ideal for new installations and system replacements.
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!
Equipment Pad and Risers Kit
E Lite Condenser Pad and Risers
E Lite Condenser Pad
E Lite Condenser Pad is designed to provide solid support for air conditioning condensers. It's made from sturdy polypropylene, striking a balance between lightness and stability. Its robust design ensures a level ground without the need for extra components.
Key Features:
- Reliable Support: Abundance of ridges for stable ground support.
- Durable and Lightweight: Tough yet not excessively heavy, thanks to polypropylene construction.
- Anti-Slip: The surface prevents slipping, and rounded edges enhance safety.
- Simple Appearance: Gray color with size labels.
- Versatile Use: Suitable for condensers, pipes, ducts, cables, and more.
E Lite Risers
E Lite Risers complement the Condenser Pad, allowing you to adjust your setup as needed. They are constructed from weather-resistant PVC for outdoor use.
Key Features:
- Weather Resistance: Made from tough PVC for long-lasting performance.
- Secure Setup: The track securely holds bolts in place.
- Bolts Included: Each set comes with two bolts.
- Strong Support: Capable of handling loads of up to 397 pounds.
E Lite Condenser Pad and Risers offer reliable support without any complications. They are built to last and deliver efficient performance. Consider E Lite for your support needs – it's a practical solution for your projects.
No Return Policy
All sales of this product are final and are non-refundable.
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 - R454B
DIY35-1438C-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.
Write Your Own Review
Customer Questions
Why Choose MRCOOL?
MRCOOL mini split systems combine innovative design with advanced manufacturing to deliver efficient, reliable comfort wherever you need it. Built with cutting-edge technology, these systems ensure optimal performance and flexibility for any space.