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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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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
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
Installation Benefits
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.
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.
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.
| MRCOOL DIY 4th Gen 9,000 BTU Multi-Zone Wall Mounted Air Handler with Enhanced WiFi-R410A | |
|---|---|
| SKU | DIY-09-HP-WMAH-230C25 |
| Weight | 23.800000 |
| Manufacturer | MRCOOL |
| Product Features | Quick Connect, WiFi |
| Cooling BTU | 9,000 BTU |
| Heating BTU | 9,000 BTU |
| Decibel Level (dBA) | 25-40 |
| Refrigerant | R410A |
| SEER | 22 |
| Liquid Line | 1/4" |
| Suction Line | 1/2" |
| Electrical | 208/230 V. 1 Phase 60 Hz |
| Max Breaker Size | 15 |
| Min. Breaker Size | 3 |
| BTU/Tonnage | 9,000 BTU/0.75 Ton |
| Mini Split Type | Wall Mounted |
| Height | 11.69" |
| Width | 31.57" |
| Depth | 7.44" |
| Warranty | 5-year Parts / 7-year Compressor |
| Resources | You will need Adobe® Acrobat® Reader to view PDF documents. |
| Safety Information | PROPOSITION 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.
|
| MRCOOL DIY 4th Gen 12,000 BTU Multi-Zone Wall Mounted Air Handler with Enhanced WiFi-R410A | |
| SKU | DIY-12-HP-WMAH-230C25 |
| Weight | 23.600000 |
| Manufacturer | MRCOOL |
| Product Features | Quick Connect, WiFi |
| Cooling BTU | 12,000 BTU |
| Heating BTU | 12,000 BTU |
| Refrigerant | R410A |
| Liquid Line | 1/4" |
| Suction Line | 1/2" |
| Electrical | 208/230 V. 1 Phase 60 Hz |
| Max Breaker Size | 15 Amps |
| Min. Breaker Size | 3 Amps |
| BTU/Tonnage | 12,000 BTU/1 Ton |
| Mini Split Type | Wall Mounted |
| Height | 11.69" |
| Width | 31.57" |
| Depth | 7.44" |
| Warranty | 5-year Parts / 7-year Compressor |
| Resources | You will need Adobe® Acrobat® Reader to view PDF documents. |
| Safety Information | PROPOSITION 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.
|
| MRCOOL DIY 4th Gen Multi-Zone 3-Zone Condenser - R-410A | |
| SKU | DIY-MULTI3-27HP230C |
| Weight | 157.190000 |
| Manufacturer | MRCOOL |
| Cooling BTU | 27,000 BTU |
| Heating BTU | 27,000 BTU |
| Approximate Heating Area | 1,000 - 1,500 Sq Ft |
| Decibel Level (dBA) | 61 dBA |
| Energy Star | No |
| Refrigerant | R410A |
| SEER2 | 22 |
| Liquid Line | 1/4" |
| Suction Line | 1/2" |
| Electrical | 208-230V | 1 Phase | 60Hz |
| Amperage Requirement | 40 Amps |
| Zone Compatibility | Multi Zone |
| Operating Mode | Cooling, Heating |
| Height | 31.89" |
| Width | 37.24" |
| Depth | 16.14" |
| Warranty | 5 Year Parts, 7 Year Compressor |
| Resources | You will need Adobe Acrobat Reader to view PDF documents. |
| Safety Information | PROPOSITION 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.
|
| MRCOOL DIY 16' Quick Connect Line Set for 9k, 12k, and 18k Air Handlers-R410A | |
| SKU | DIY16-1412 |
| Weight | 20.000000 |
| Manufacturer | MRCOOL |
| Refrigerant | R410A |
| Liquid Line | 1/4" |
| Suction Line | 1/2" |
| Electrical | 230 V. 1 Phase 60 Hz |
| Mini Split Type | Wall Mounted |
| Warranty | 5-year Parts / 7-year Compressor |
| Resources | You will need Adobe® Acrobat® Reader to view PDF documents. |
| Safety Information | PROPOSITION 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.
|
| MRCOOL DIY 25' Quick Connect Line Set for 9k, 12k, and 18k Air Handlers-R410A | |
| SKU | DIY25-1412 |
| Weight | 30.000000 |
| Manufacturer | MRCOOL |
| Refrigerant | R410A |
| Liquid Line | 1/4" |
| Suction Line | 1/2" |
| Electrical | 230 V. 1 Phase 60 Hz |
| Mini Split Type | Wall Mounted |
| Warranty | 5-year Parts / 7-year Compressor |
| Resources | You will need Adobe® Acrobat® Reader to view PDF documents. |
| Safety Information | PROPOSITION 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.
|
| DIY 4th Generation 35ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor | |
| SKU | DIY35-1412C |
| Weight | 20.000000 |
| Manufacturer | MRCOOL |
| Refrigerant | R410A |
| Liquid Line | 1/4" |
| Suction Line | 1/2" |
| Electrical | 230 V. 1 Phase 60 Hz |
| Mini Split Type | Wall Mounted |
| Warranty | 5-year Parts / 7-year Compressor |
| Resources | You will need Adobe® Acrobat® Reader to view PDF documents. |
| Safety Information | PROPOSITION 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.
|
| DIY 4th Generation 50ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor | |
| SKU | DIY50-1412C |
| Weight | 20.000000 |
| Manufacturer | MRCOOL |
| Refrigerant | R410A |
| Liquid Line | 1/4" |
| Suction Line | 1/2" |
| Electrical | 230 V. 1 Phase 60 Hz |
| Mini Split Type | Wall Mounted |
| Warranty | 5-year Parts / 7-year Compressor |
| Resources | You will need Adobe® Acrobat® Reader to view PDF documents. |
| Safety Information | PROPOSITION 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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