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27,000 BTU MRCOOL DIY 4th Gen Tri Zone Wall Mount Mini Split Heat Pump System R410A | 230V 9 + 12 + 12

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MRCOOL

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Model

DIY-MULTI3-27HP230C / 2-DIY-12-HP-WMAH-230C25 / DIY-09-HP-230C25

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216995

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Customize 27,000 BTU MRCOOL DIY 4th Gen Tri Zone Wall Mount Mini Split Heat Pump System R410A | 230V 9 + 12 + 12
MRCOOL DIY 4th Gen Multi-Zone 3-Zone Condenser - R-410A
MRCOOL DIY 4th Gen Multi-Zone 3-Zone Condenser - R-410A   + $1,604.99
MRCOOL DIY 4th Gen 9,000 BTU Multi-Zone Wall Mounted Air Handler with Enhanced WiFi-R410A
MRCOOL DIY 4th Gen 9,000 BTU Multi-Zone Wall Mounted Air Handler with Enhanced WiFi-R410A   + $465.00
MRCOOL DIY 4th Gen 12,000 BTU Multi-Zone Wall Mounted Air Handler with Enhanced WiFi-R410A
MRCOOL DIY 4th Gen 12,000 BTU Multi-Zone Wall Mounted Air Handler with Enhanced WiFi-R410A   + $499.99
MRCOOL DIY 4th Gen 12,000 BTU Multi-Zone Wall Mounted Air Handler with Enhanced WiFi-R410A
MRCOOL DIY 4th Gen 12,000 BTU Multi-Zone Wall Mounted Air Handler with Enhanced WiFi-R410A   + $499.99
MRCOOL DIY 16' Quick Connect Line Set for 9k, 12k, and 18k Air Handlers-R410A
MRCOOL DIY 16' Quick Connect Line Set for 9k, 12k, and 18k Air Handlers-R410A
MRCOOL DIY 16' Quick Connect Line Set for 9k, 12k, and 18k Air Handlers-R410A
27,000 BTU MRCOOL DIY 4th Gen Tri-Zone Wall Mount Mini Split Heat Pump System R-410A | 230V 9 + 9 + 9 - DIY-MULTI3-27HP230C / 3-DIY-09-HP-WMAH-230C25

$3,069.97

27,000 BTU MRCOOL DIY 4th Gen 21.8 SEER2 Tri Zone Wall Mount Mini Split Heat Pump System | R-454B | 230V 9 + 12 + 12

The MRCOOL DIY 4th Generation 27,000 BTU Tri Zone Wall Mount Mini Split Heat Pump System delivers efficient heating and cooling for up to 3 zones, making it perfect for providing customizable comfort throughout your home or office.

Equipped with a high-efficiency 21.8 SEER2 rating and environmentally friendly R454B refrigerant, this system ensures energy savings while reducing environmental impact. The wall-mount indoor units offer space-saving installation and quiet operation for a comfortable and unobtrusive experience.

Key Features

  • Tri Zone Independent Control: Set heating and cooling preferences for each room individually.
  • Wall-Mount Indoor Units: Compact design with optimal airflow for consistent comfort.
  • High Energy Efficiency: 21.8 SEER2 rating reduces energy consumption and operating costs.
  • Smart Home Compatible: Works with MRCOOL SmartHVAC app and supports voice control via Alexa and Google Assistant.
  • Quiet Operation: Low noise levels ensure a peaceful indoor environment.
  • Eco-Friendly Refrigerant: Uses R454B for safe and efficient cooling and heating.

System Components

  • Outdoor Unit: 27,000 BTU inverter-driven multi-zone condenser built for reliable performance.
  • Remote Controls: Individual remotes for each indoor unit for precise temperature control.

Applications

Ideal for residential or small commercial spaces that need efficient, multi-zone heating and cooling. Perfect for living rooms, bedrooms, offices, or small conference areas. Pre-Charged Line Set required, sold separately.

MRCOOL DIY 4th Gen 9,000 BTU Multi-Zone Wall Mounted Air Handler with Enhanced WiFi-R410A

OVERVIEW

Coming in as one of the first brands to offer a multi zone DIY mini split, MRCOOL offers the DIY-09-HP-WMAH-230C25 wall mounted air handler for use in almost any installation need while providing a simple installation process. When paired with the proper installation materials, installation is fast, convenient, and cost-effective with MRCOOL’s DIY-09-HP-WMAH-230C25.

FEATURES

  • 9,000 BTU multi zone DIY wall mounted air handler
  • Generally suitable to cover a small room in ideal climates
  • Direct-from-manufacturer customer technical support available for all MRCOOL DIY units
  • 100% sealed and pre-charged system when installed with the right accessories
  • Energy Star certified
9,000 BTU

With a rated output of 9,000 BTU, the MRCOOL DIY-09-HP-WMAH-230C25 wall mounted air handler can generally heat and cool a small room in ideal climates. Please note that in order to function, this air handler must be installed with a compatible condenser, controllers, MRCOOL precharged line sets, and other installation equipment, available at an additional cost. If you have any questions, please do not hesitate to contact us for details.

Warranty

MRCOOL offers a 5 year parts and 7 year compressor warranty on their multi zone DIY units when installed following the installation instructions and registered online through the manufacturer.

Intelligent Comfort Whenever You Need It

With MRCOOL's WiFi compatibility built-in to each DIY air handler, you can control your home's comfort from anywhere in the world that you have Internet—across town or across the world. This WiFi is easily set up, further improving the ease of this unit's installation.

A DIY Installation Built to Last

When paired with MRCOOL's easy-install precharged line sets and air handlers, the DIY-09-HP-WMAH-230C25 is installation ready for almost any wall-mounted application. With no need to evacuate the line sets or add refrigerant, this unit can support multi-room heating and cooling without the expensive labor cost of a regular mini split. With this major obstacle out of the way, you will only need to follow the instructions for the unit and hard wire the condenser to power.

MRCOOL DIY 4th Gen 12,000 BTU Multi-Zone Wall Mounted Air Handler with Enhanced WiFi-R410A

OVERVIEW

Coming in as one of the first brands to offer a multi zone DIY mini split, MRCOOL offers the DIY-12-HP-WMAH-230B wall mounted air handler for use in almost any installation need while providing a simple installation process. When paired with the proper installation materials, installation is fast, convenient, and cost-effective with MRCOOL’s DIY-12-HP-WMAH-230B.

FEATURES

  • 12,000 BTU multi zone DIY wall mounted air handler
  • Generally suitable to cover a small room in ideal climates
  • Direct-from-manufacturer customer technical support available for all MRCOOL DIY units
  • 100% sealed and pre-charged system when installed with the right accessories
  • Energy Star certified
12,000 BTU

With a rated output of 12,000 BTU, the MRCOOL DIY-12-HP-WMAH-230B wall mounted air handler can generally heat and cool a small room in ideal climates. Please note that in order to function, this air handler must be installed with a compatible condenser, controllers, MRCOOL precharged line sets, and other installation equipment, available at an additional cost. If you have any questions, please do not hesitate to contact us for details.

Warranty

MRCOOL offers a 5 year parts and 7 year compressor warranty on their multi zone DIY units when installed following the installation instructions and registered online through the manufacturer.

Intelligent Comfort Whenever You Need It

With MRCOOL's WiFi compatibility built-in to each DIY air handler, you can control your home's comfort from anywhere in the world that you have Internet—across town or across the world. This WiFi is easily set up, further improving the ease of this unit's installation.

A DIY Installation Built to Last

When paired with MRCOOL's easy-install precharged line sets and air handlers, the DIY-12-HP-WMAH-230B is installation ready for almost any wall-mounted application. With no need to evacuate the line sets or add refrigerant, this unit can support multi-room heating and cooling without the expensive labor cost of a regular mini split. With this major obstacle out of the way, you will only need to follow the instructions for the unit and hard wire the condenser to power.

MRCOOL DIY 4th Gen Multi-Zone 3-Zone Condenser - R-410A

DIY-MULTI3-27HP230C MrCool DIY® 4th Generation Multi-Zone 27,000 BTU Condenser — 230V

Product Overview

The MrCool DIY® 4th Generation 27,000 BTU Multi-Zone Condenser is designed to deliver efficient heating and cooling for up to three zones. Operating on 230V power, this outdoor unit pairs with compatible indoor air handlers to provide inverter-driven performance, quiet operation, and durable weather protection. With its DIY-friendly installation, it offers a reliable and cost-effective solution for customized multi-zone climate control.

Key Features

  • Capacity: 27,000 BTU/h to support up to three zones
  • Inverter compressor technology for precise temperature control and energy efficiency
  • DIY installation with pre-charged refrigerant and quick-connect fittings
  • Smart control compatibility for remote operation and monitoring
  • Gold Fin® condenser coating for enhanced corrosion resistance
  • Low ambient heating capability with automatic defrost functionality
  • Quiet design suitable for residential and light commercial use

Performance & Coverage

Perfect for mid-sized applications, this condenser ensures year-round comfort with consistent heating and cooling. The inverter system adjusts output to match demand, improving comfort while lowering energy consumption.

Specifications

  • Power supply: 230V, single-phase, 60Hz
  • Refrigerant: R-410A, pre-charged
  • Liquid line size: 1/4"
  • Gas line size: 1/2"
  • Maximum number of zones: 3
  • SEER2 rating: Up to 22
  • Heating performance down to: -13°F

Installation Benefits

  • Pre-charged refrigerant and quick-connect fittings simplify installation
  • Single-phase 230V power supply requirement
  • Accessible service panels for easier maintenance
  • Durable outdoor construction with Gold Fin® protection

Why Choose This Model?

The DIY-MULTI3-27HP230C is an excellent choice for homeowners seeking a dependable, energy-efficient multi-zone HVAC system with easy DIY installation and smart control options.

MRCOOL DIY 16' Quick Connect Line Set for 9k, 12k, and 18k Air Handlers-R410A

Coming in as one of the first brands to offer a multi zone DIY mini split, MRCOOL offers the DIY16-1412 as a means of coupling two of MRCOOL's precharged line sets together to allow for a longer line for installations that need it, all the while keeping the system precharged in nature. This coupler furthers MRCOOL's ability to provide a simple DIY installation to almost any wall mounted installation. Please note that this line set will only function with MRCOOL's DIY multi zone line of products and will not function with any other brand or system series.

MRCOOL DIY 25' Quick Connect Line Set for 9k, 12k, and 18k Air Handlers-R410A

Coming in as one of the first brands to offer a multi zone DIY mini split, MRCOOL offers the DIY25-1412 as a means of coupling two of MRCOOL's precharged line sets together to allow for a longer line for installations that need it, all the while keeping the system precharged in nature. This coupler furthers MRCOOL's ability to provide a simple DIY installation to almost any wall mounted installation. Please note that this line set will only function with MRCOOL's DIY multi zone line of products and will not function with any other brand or system series.

More Information
MRCOOL DIY 4th Gen 9,000 BTU Multi-Zone Wall Mounted Air Handler with Enhanced WiFi-R410A
SKUDIY-09-HP-WMAH-230C25
Weight23.800000
ManufacturerMRCOOL
Product FeaturesQuick Connect, WiFi
Cooling BTU9,000 BTU
Heating BTU9,000 BTU
Decibel Level (dBA)25-40
RefrigerantR410A
SEER22
Liquid Line1/4"
Suction Line1/2"
Electrical208/230 V. 1 Phase 60 Hz
Max Breaker Size15
Min. Breaker Size3
BTU/Tonnage9,000 BTU/0.75 Ton
Mini Split TypeWall Mounted
Height11.69"
Width31.57"
Depth7.44"
Warranty5-year Parts / 7-year Compressor
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
MRCOOL DIY 4th Gen 12,000 BTU Multi-Zone Wall Mounted Air Handler with Enhanced WiFi-R410A
SKUDIY-12-HP-WMAH-230C25
Weight23.600000
ManufacturerMRCOOL
Product FeaturesQuick Connect, WiFi
Cooling BTU12,000 BTU
Heating BTU12,000 BTU
RefrigerantR410A
Liquid Line1/4"
Suction Line1/2"
Electrical208/230 V. 1 Phase 60 Hz
Max Breaker Size15 Amps
Min. Breaker Size3 Amps
BTU/Tonnage12,000 BTU/1 Ton
Mini Split TypeWall Mounted
Height11.69"
Width31.57"
Depth7.44"
Warranty5-year Parts / 7-year Compressor
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
MRCOOL DIY 4th Gen Multi-Zone 3-Zone Condenser - R-410A
SKUDIY-MULTI3-27HP230C
Weight157.190000
ManufacturerMRCOOL
Cooling BTU27,000 BTU
Heating BTU27,000 BTU
Approximate Heating Area1,000 - 1,500 Sq Ft
Decibel Level (dBA)61 dBA
Energy StarNo
RefrigerantR410A
SEER222
Liquid Line1/4"
Suction Line1/2"
Electrical208-230V | 1 Phase | 60Hz
Amperage Requirement40 Amps
Zone CompatibilityMulti Zone
Operating ModeCooling, Heating
Height31.89"
Width37.24"
Depth16.14"
Warranty5 Year Parts, 7 Year Compressor
Resources You will need Adobe Acrobat Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
MRCOOL DIY 16' Quick Connect Line Set for 9k, 12k, and 18k Air Handlers-R410A
SKUDIY16-1412
Weight20.000000
ManufacturerMRCOOL
RefrigerantR410A
Liquid Line1/4"
Suction Line1/2"
Electrical230 V. 1 Phase 60 Hz
Mini Split TypeWall Mounted
Warranty5-year Parts / 7-year Compressor
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
MRCOOL DIY 25' Quick Connect Line Set for 9k, 12k, and 18k Air Handlers-R410A
SKUDIY25-1412
Weight30.000000
ManufacturerMRCOOL
RefrigerantR410A
Liquid Line1/4"
Suction Line1/2"
Electrical230 V. 1 Phase 60 Hz
Mini Split TypeWall Mounted
Warranty5-year Parts / 7-year Compressor
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
DIY 4th Generation 35ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor
SKUDIY35-1412C
Weight20.000000
ManufacturerMRCOOL
RefrigerantR410A
Liquid Line1/4"
Suction Line1/2"
Electrical230 V. 1 Phase 60 Hz
Mini Split TypeWall Mounted
Warranty5-year Parts / 7-year Compressor
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
DIY 4th Generation 50ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor
SKUDIY50-1412C
Weight20.000000
ManufacturerMRCOOL
RefrigerantR410A
Liquid Line1/4"
Suction Line1/2"
Electrical230 V. 1 Phase 60 Hz
Mini Split TypeWall Mounted
Warranty5-year Parts / 7-year Compressor
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety InformationPROPOSITION 65 WARNING
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Why Choose MRCOOL?
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.