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18,000 BTU MRCOOL DIY 5th Gen 23.9 SEER2 Tri Zone Wall Mount Mini Split Heat Pump System – R454B | 230V – 6 + 6 + 6

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MRCOOL

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Model

DIY-MULTI3-18HP / DIY-06-HP-WMAH-230-3

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206685

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Customize 18,000 BTU MRCOOL DIY 5th Gen 23.9 SEER2 Tri Zone Wall Mount Mini Split Heat Pump System – R454B | 230V – 6 + 6 + 6
18,000 BTU MRCOOL 3 Zone Condenser - R454B
18,000 BTU MRCOOL 3 Zone Condenser - R454B
18,000 BTU MRCOOL 3 Zone Condenser - R454B   + $1,555.00
6,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B
6,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B
6,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B   + $457.00
6,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B
6,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B
6,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B   + $457.00
6,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B
6,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B
6,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B   + $457.00
16ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor - R454B
16ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor - R454B
16ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor - R454B
18,000 BTU MRCOOL DIY 5th Gen 23.9 SEER2 Tri Zone Wall Mount Mini Split Heat Pump System – R454B | 230V –  6 + 6 + 6 - DIY-MULTI3-18HP / DIY-06-HP-WMAH-230-3

$2,926.00

MRCOOL DIY 5th Gen 18,000 BTU Tri-Zone Ductless Heat Pump Split System (6,000 + 6,000 + 6,000 BTU)

The MRCOOL DIY 5th Gen 18,000 BTU Tri-Zone Ductless Heat Pump Split System is engineered to provide efficient heating and cooling across three separate zones. Each zone is equipped with a 6,000 BTU wall-mounted indoor unit, making it ideal for homes with multiple rooms requiring individual climate control. This system offers a perfect balance of performance, energy efficiency, and ease of installation.

System Features

  • Three-Zone Comfort: Includes three 6,000 BTU wall-mounted indoor units, allowing independent control of each zone for personalized comfort.
  • Energy Efficiency: Features a high SEER2 rating, ensuring reduced energy consumption and lower utility bills.
  • Smart Control Compatibility: Supports integration with the MRCOOL SmartHVAC app, Amazon Alexa, and Google Assistant for convenient remote control.
  • Quiet Operation: Operates with minimal noise, providing a comfortable environment without disruptive sounds.
  • Durable Construction: Built with high-quality materials to ensure long-lasting performance and reliability.
  • All-Weather Performance: Capable of cooling in temperatures as low as 5 F and heating down to -13 F, suitable for various climates.

Whats Included

  • One 18,000 BTU Outdoor Condenser: Powers all three indoor units, providing efficient heating and cooling.
  • Three 6,000 BTU Wall-Mounted Indoor Units: Each unit is designed for easy installation and operation.
  • Three Wireless Remote Controls: Allow for convenient control of each indoor unit.
  • Smart Controller Module: Enables integration with smart home systems for enhanced control.
  • Complete DIY Installation Kit and Manuals: Provides all necessary components and instructions for installation.

Why Choose the MRCOOL DIY 5th Gen Tri-Zone System?

The MRCOOL DIY 5th Gen Tri-Zone Ductless Heat Pump Split System offers a comprehensive solution for homes requiring independent climate control in multiple rooms. Its easy installation process, energy efficiency, and smart control capabilities make it an excellent choice for homeowners seeking comfort and convenience without the need for professional installation. These bundles require the purchase of a Pre-Charged Line Set, these are not included.

18,000 BTU MRCOOL DIY 5th Generation 3 Zone Multi-Zone Mini Split Condenser - R410A | 230V

MRCOOL 18k DIY 5th Generation 3 Zone Multi-Zone Mini-Split Condenser 230v

The MRCOOL® DIY-MULTI3-18HP230D-O is a revolutionary 18,000 BTU 5th Generation 3 Zone Multi-Zone Mini-Split Condenser that brings you the power to customize comfort across multiple rooms with the convenience of DIY installation. Designed for compatibility with up to three separate indoor air handlers, this system delivers efficient and quiet operation for spaces of varying sizes.

Key Features

  • DIY Installation: Designed for easy installation without the need for special tools or HVAC expertise.
  • Flexible Zoning: Supports up to three zones, allowing for tailored temperature control in multiple areas of your home or office.
  • High Efficiency: Boasts a SEER2 rating of up to 21.2, ensuring energy savings and optimal performance year-round.
  • Inverter Technology: Variable-speed DC inverter provides precise temperature control and minimizes energy use by adjusting output to demand.
  • Smart Home Integration: Includes compatibility with Alexa and Google Assistant for voice-controlled convenience.
  • Corrosion Resistance: Gold Fin® coating provides long-lasting protection against salt air and environmental elements.
  • Low Ambient Cooling: Capable of cooling in temperatures as low as 5°F, making it suitable for a wide range of climates.

Performance & Specifications

  • Cooling Capacity: 18,000 BTU
  • Heating Capacity: 18,000 BTU
  • Voltage: 230V
  • Zone Capability: Up to 3 zones
  • SEER2: Up to 21.2
  • EER2: Up to 12.5
  • HSPF2 (Region IV): Up to 10.5

Additional Benefits

  • Quiet Operation: Engineered for ultra-quiet performance, reducing ambient noise indoors and outdoors.
  • Warranty Protection: Backed by a limited lifetime compressor warranty and 7-year parts coverage for peace of mind.
  • Environmentally Friendly: Utilizes R-454B refrigerant for safe, efficient operation with reduced environmental impact.

The MRCOOL 18k DIY 3 Zone Condenser is the ideal solution for homeowners seeking zoned comfort without professional installation. Its energy efficiency, advanced features, and simple setup make it a standout choice for year-round indoor climate control.

6,000 BTU MRCOOL DIY 5th Generation Single Zone Wall Mount Mini Split Air Handler - R454B | 230V

MRCOOL® 6k DIY 5th Generation Mini-Split Air Handler 230v

The MRCOOL® 6k DIY 5th Generation Mini-Split Air Handler is a compact, energy-efficient solution designed for single-zone comfort. Ideal for smaller spaces, this 230-volt unit delivers reliable heating and cooling performance while supporting the full functionality of the MRCOOL® DIY series. With a focus on flexibility and user-friendly installation, it's perfect for homeowners looking for a cost-effective and convenient HVAC upgrade.

Key Features:

  • Energy Efficiency: High SEER2 ratings ensure lower energy consumption and long-term cost savings.
  • DIY Installation: Designed to be installed without the need for professional HVAC labor, thanks to the pre-charged line sets and easy-to-follow setup.
  • Quiet Operation: Operates at low sound levels to maintain a peaceful indoor environment.
  • Wi-Fi Compatibility: Integrates with the MRCOOL® SmartHVAC app for remote control through your smartphone or smart home system.
  • Compact Design: Small footprint makes it ideal for rooms with limited wall space while still delivering efficient comfort.
  • Auto Restart and Timer Functions: Built-in convenience features enhance usability and system responsiveness.
  • Multi-Speed Fan: Offers adjustable airflow settings to suit your comfort needs year-round.

Specifications:

  • Model Number: DIY-06-HP-WMAH-230D25-O
  • Voltage: 230V
  • Cooling Capacity: 6,000 BTU
  • Refrigerant Type: R-454B
  • Mounting Type: Wall-mounted

This air handler is part of the MRCOOL® 5th Generation DIY system, offering high efficiency, ease of use, and superior performance. Whether you're outfitting a new room or replacing an older unit, the 6k Mini-Split Air Handler brings reliable, modern climate control within reach of any homeowner.

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.

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.

More Information
18,000 BTU MRCOOL DIY 5th Generation 3 Zone Multi-Zone Mini Split Condenser - R410A | 230V
SKUDIY-MULTI3-18HP230D-O
Weight101.630000
ManufacturerMRCOOL
HSPF210
Cooling BTU18,000
Heating BTU18,000
Decibel Level (dBA)60
RefrigerantR454B
SEER223.9
Compressor TypeRotary
Liquid Line1/4
Suction Line3/8
Liquid Valve Size 1/4
Suction Valve Size 3/8
Electrical208/230
Max Breaker Size20
Min. Breaker Size16
BTU/Tonnage18,000 BTU/1.5 Ton
Zone CompatibilityMulti Zone
Height26.5
Width35.04
Depth13.46
Warranty7 Year Compressor/5 Year Parts Warranty
Resources You will need Adobe Acrobat Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
6,000 BTU MRCOOL DIY 5th Generation Single Zone Wall Mount Mini Split Air Handler - R454B | 230V
SKUDIY-06-HP-WMAH-230D25-O
Weight24.470000
ManufacturerMRCOOL
RefrigerantR454B
Mini Split TypeWall Mounted
Zone CompatibilityMulti Zone
Height11.69
Width31.57
Depth7.44
Warranty7 Year Compressor/5 Year Parts Warranty
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
16ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor - R454B
SKUDIY16-1438-O
Weight7.900000
ManufacturerMRCOOL
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
Indoor Units15 + 15 + 18
Safety InformationPROPOSITION-65-WARNING This-product-and-many-products-on-our-site-may-contain-a-chemical-know-to-the-state-of-California-to-cause-cancer-or-birth-defects-or-other-reproductive-harm.-For-more-information-about-Proposition-65-please-Click-Here.
25ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor - R454B 
SKUDIY25-1438-O
Weight10.400000
ManufacturerMRCOOL
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
Indoor Units15 + 15 + 18
Safety InformationPROPOSITION-65-WARNING This-product-and-many-products-on-our-site-may-contain-a-chemical-know-to-the-state-of-California-to-cause-cancer-or-birth-defects-or-other-reproductive-harm.-For-more-information-about-Proposition-65-please-Click-Here.
35ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable - R454B
SKUDIY35-1438C-O
Weight17.600000
ManufacturerMRCOOL
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
Indoor Units15 + 15 + 18
Safety InformationPROPOSITION-65-WARNING This-product-and-many-products-on-our-site-may-contain-a-chemical-know-to-the-state-of-California-to-cause-cancer-or-birth-defects-or-other-reproductive-harm.-For-more-information-about-Proposition-65-please-Click-Here.
50ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable - R454B   
SKUDIY50-1438C-O
Weight24.000000
ManufacturerMRCOOL
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
Indoor Units15 + 15 + 18
Safety InformationPROPOSITION-65-WARNING This-product-and-many-products-on-our-site-may-contain-a-chemical-know-to-the-state-of-California-to-cause-cancer-or-birth-defects-or-other-reproductive-harm.-For-more-information-about-Proposition-65-please-Click-Here.
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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.