MRCOOL 36,000 BTU DIY 5th Gen 23 SEER2 3 Zone Wall Mount Mini Split Heat Pump System R454B | 230V 9 + 12 + 12

Required Fields *

By

MRCOOL

In stock

Model

DIY-MULTI5-36HP / DIY-09-HP-WMAH-230 / DIY-12-HP-WMAH-230-2

ID

206744

In Stock - 33 Ready to Ship
Was $4,898.30
Your Low Price $4,453.00
Free Shipping
Product Features
  • Sized At 36,000 BTU For 1500 Sq Ft
  • 36,000 BTU For Up To 1500 Sq Ft
  • 23 SEER2 Energy-Saving Efficiency
  • Smooth, Steady Temperature Control
  • Consistent Comfort In Your Space
  • High-Ambient Cooling Up To 122°F
Customize MRCOOL 36,000 BTU DIY 5th Gen 23 SEER2 3 Zone Wall Mount Mini Split Heat Pump System R454B | 230V 9 + 12 + 12
36,000 BTU MRCOOL 5 Zone Condenser - R454B
36,000 BTU MRCOOL 5 Zone Condenser - R454B   + $2,543.00
9,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B
9,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B   + $532.00
12,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B
12,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B   + $689.00
12,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B
12,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B   + $689.00
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
17" Wall Mount Bracket for Mini Split Systems
Installation Kit for Condensers
36,000 BTU MRCOOL DIY 5th Gen 23 SEER2 Tri Zone Wall Mount Mini Split Heat Pump System – R454B | 230V –  9 + 12 + 12 - DIY-MULTI5-36HP / DIY-09-HP-WMAH-230 / DIY-12-HP-WMAH-230-2

$4,453.00

MRCOOL DIY 5th Gen 36,000 BTU Tri Zone Ductless Heat Pump Split System (9,000 + 12,000 + 12,000 BTU)

The MRCOOL DIY 5th Gen 36,000 BTU Tri Zone Ductless Heat Pump Split System provides powerful, efficient comfort for larger homes with multiple zones. Featuring one 9,000 BTU indoor unit and two 12,000 BTU indoor units, this configuration is ideal for combining a medium-sized room”such as an office or guest bedroom”with two larger spaces like master bedrooms or open living areas. Engineered for high performance, whisper-quiet operation, and fully DIY-friendly installation, this system offers the latest in zoned heating and cooling control.

System Features

  • Custom Comfort Zones: One 9,000 BTU unit for a mid-sized room and two 12,000 BTU units for large areas, all with individual control.
  • 36,000 BTU Outdoor Condenser: Inverter-driven compressor ensures smooth, efficient operation across all connected zones.
  • Smart Controls: Works with the MRCOOL SmartHVAC app, Amazon Alexa, and Google Assistant for convenient remote and voice control.
  • High Energy Efficiency: SEER2-rated to provide dependable comfort while keeping utility costs low.
  • Ultra-Quiet Performance: Low-noise indoor and outdoor units make it ideal for bedrooms, workspaces, and shared environments.
  • Durable Outdoor Design: Gold Fin anti-corrosion coating protects the condenser from environmental damage for long-lasting performance.
  • Refrigerant Leak Detection: Integrated system alerts protect your investment and ensure ongoing reliability.

All-Season Comfort

Engineered to operate in outdoor temperatures as low as 5 F for cooling and -13 F for heating, this tri-zone system offers year-round climate control. Independent zone management allows you to customize temperatures while saving energy in unoccupied areas.

Whats Included

  • One 36,000 BTU Outdoor Condenser
  • One 9,000 BTU Wall-Mounted Indoor Unit
  • Two 12,000 BTU Wall-Mounted Indoor Units
  • Three Wireless Remote Controls
  • Smart Controller Module

Why Choose the MRCOOL 5th Gen 9K + 12K + 12K Tri Zone System?

The MRCOOL DIY 5th Gen Tri Zone System with one 9,000 BTU and two 12,000 BTU indoor units offers outstanding comfort for homes with medium and large rooms. With smart controls, efficient operation, and easy installation, it's a premium system built for modern convenience and performance. These bundles require the purchase of a Pre-Charged Line Set, these are not included.

36,000 BTU MRCOOL 5 Zone Condenser - R454B

MRCOOL 36k DIY 5th Generation 5 Zone Multi-Zone Mini-Split Condenser 230v

The MRCOOL® DIY-MULTI5-36HP230D-O is a powerful and flexible 5th Generation Multi-Zone Mini-Split Condenser designed for up to five zones of customized climate control. Ideal for homeowners seeking an energy-efficient, easy-to-install system, this 36,000 BTU unit supports MRCOOL® DIY® Quick Connect® air handlers and features industry-leading convenience and performance.

Key Features

  • 5-Zone Capacity: Supports up to five indoor units with varied BTU ratings for personalized room-by-room temperature control.
  • Smart Technology: Works with the SmartHVAC app, Amazon Alexa, and Google Assistant for remote monitoring and control.
  • Energy Efficiency: High SEER2 and HSPF2 ratings provide year-round comfort while reducing utility costs.
  • Durable Design: Features a corrosion-resistant Gold Fin coating for long-term outdoor reliability.

Performance Specifications

  • Model: DIY-MULTI5-36HP230D-O
  • Power Supply: 208/230V, 60Hz, 1Ph
  • Cooling Capacity: 36,000 BTU
  • Heating Capacity: 36,000 BTU
  • SEER2: Up to 23
  • HSPF2: Up to 8.5

Additional Features

  • Low Ambient Cooling: Operates in temperatures as low as 5°F for cooling and -13°F for heating
  • Quiet Operation: Low noise output for minimal disturbance indoors and outdoors
  • Auto Restart: Automatically resumes settings after a power outage
  • Multiple Fan Speeds: Adjustable airflow settings for increased comfort

The MRCOOL 36k DIY 5th Generation Multi-Zone Condenser is the ideal solution for homeowners who want full control, top-tier performance, and hassle-free installation. With smart features and powerful climate management across five zones, it delivers dependable comfort all year long.

9,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B

MRCOOL® 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 – R454B

MRCOOL® 12k DIY 5th Generation Mini-Split Air Handler 230v

The MRCOOL® 12k DIY 5th Generation Mini-Split Air Handler is an efficient, user-friendly solution for heating and cooling medium-sized spaces. With a capacity of 12,000 BTU and a 230-volt configuration, this air handler is part of the innovative MRCOOL® DIY series, designed for fast installation without specialized HVAC tools or training. Ideal for homeowners looking to upgrade their comfort without added labor costs, it combines smart technology with dependable performance.

Key Features:

  • DIY-Friendly Installation
  • Efficient Performance: High SEER2 efficiency helps reduce energy bills while maintaining reliable comfort all year long.
  • Smart Controls: Compatible with the MRCOOL® SmartHVAC app, as well as Alexa and Google Assistant, for remote operation and scheduling.
  • Low Noise Operation: Engineered for quiet performance, making it perfect for bedrooms, offices, and other quiet zones.
  • Versatile Functionality: Supports cooling, heating, fan-only, and dehumidification modes to suit any seasonal need.
  • Auto Restart and Sleep Mode: Automatically resumes with previous settings after power outages and adjusts temperatures overnight for energy savings.
  • Wall-Mounted Design: Sleek and compact unit fits easily into most interior layouts without taking up valuable floor space.

Specifications:

  • Model Number: DIY-12-HP-WMAH-230D25-O
  • Voltage: 230V
  • Cooling/Heating Capacity: 12,000 BTU
  • Refrigerant: R-454B
  • Mounting Style: Wall-mounted

The MRCOOL® 12k DIY Air Handler delivers the performance and features you need to efficiently control your home’s climate without the complexity of traditional HVAC systems. Ideal for bedrooms, living rooms, and other medium-sized spaces, this unit blends technology, convenience, and cost-saving efficiency into one smart package.

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.

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 23" long. The condensing unit is mounted onto the L-shaped brackets and fastened using the bolts and anti-vibration washers provided.

Features:
  • 23" Arm Length
    • Weight capacity of 220 lbs per arm
    • Bolts and anti-vibration washers included
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!

More Information
MRCOOL 9,000 BTU DIY 5th Generation Single Zone Wall Mount Mini Split Air Handler - R454B | 230V
FeatureSpec
SKUDIY-09-HP-WMAH-230D25-O
Weight (in lbs)24.470000
Brand/ManufacturerMRCOOL
ReplacesDIY-09-HP-WMAH-230C25
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
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
MRCOOL 12,000 BTU DIY 5th Generation Single Zone Wall Mount Mini Split Air Handler - R454B | 230V
FeatureSpec
SKUDIY-12-HP-WMAH-230D25-O
Weight (in lbs)24.470000
Brand/ManufacturerMRCOOL
ReplacesDIY-12-HP-WMAH-230C25
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
BTU/Tonnage12,000 BTU/1 Ton
Mini Split TypeWall Mounted
Zone CompatibilityMulti Zone
Height11.63
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
MRCOOL 36,000 BTU DIY 5th Generation 5 Zone Multi-Zone Mini Split Condenser - R454B | 230V
FeatureSpec
SKUDIY-MULTI5-36HP230D-O
Weight (in lbs)169.240000
Brand/ManufacturerMRCOOL
HSPF29.9
Cooling BTU34,000
Heating BTU36,000
Decibel Level (dBA)64
RefrigerantR454B
SEER2 (Efficiency)23
Compressor TypeRotary
Liquid Line1/4
Liquid Valve Size 1/4
Suction Valve Size 3/8
Electrical208/230
Max Breaker Size35
Min. Breaker Size30.5
BTU/Tonnage36,000 BTU/3 Ton
Zone CompatibilityMulti Zone
Height31.89
Width37.24
Depth16.14
Warranty7 Year Compressor/5 Year Parts Warranty
Resources You will need Adobe Acrobat Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
Installation Kit for Condensers - Accessory Set
FeatureSpec
SKUMSK001
Weight (in lbs)15.000000
Brand/ManufacturerOnline Supply
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
17" Wall Mount Bracket for Mini Split Systems
FeatureSpec
SKUHW-600
Weight (in lbs)9.200000
Brand/ManufacturerOnline Supply
Length17"
Height20"
Width6"
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
50ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable - R454B   
FeatureSpec
SKUDIY50-1438C-O
Weight (in lbs)24.000000
Brand/ManufacturerMRCOOL
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
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
FeatureSpec
SKUDIY35-1438C-O
Weight (in lbs)17.600000
Brand/ManufacturerMRCOOL
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
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 
FeatureSpec
SKUDIY25-1438-O
Weight (in lbs)10.400000
Brand/ManufacturerMRCOOL
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
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.
16ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor - R454B
FeatureSpec
SKUDIY16-1438-O
Weight (in lbs)7.900000
Brand/ManufacturerMRCOOL
RefrigerantR454B
Liquid Valve Size 1/4
Suction Valve Size 3/8
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.
Write Your Own Review
You're reviewing:MRCOOL 36,000 BTU DIY 5th Gen 23 SEER2 3 Zone Wall Mount Mini Split Heat Pump System R454B | 230V 9 + 12 + 12
Your Rating
Customer Questions
No Questions
Did you find what you were looking for?