MRCOOL DIY 5th Gen 55,000 BTU 3-Zone Ductless Mini Split Air Conditioner and Heat Pump with 9K+18K+24K BTU Wall Mount Indoor Units

MRCOOL DIY 5th Gen 55,000 BTU 3-Zone Ductless Mini Split Air Conditioner and Heat Pump with 9K+18K+24K BTU Wall Mount Indoor Units

SKU: DIYM355HPW13D00

Sale price$6,974.00 Regular price$9,069.00


Line Set Length: 16 Ft. + 16 Ft. + 16 Ft.

In Stock Estimated delivery: Jul 1st-10th
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Package Overview

The MRCOOL® DIY® 55,000 BTU Multi-Zone Ductless Mini Split System delivers efficient heating and cooling for up to 2250 sq. ft., using three indoor air handlers for independent comfort in multiple rooms. Ideal for bedrooms, offices, or guest rooms, this system allows you to customize temperatures in each space while enjoying the convenience of a single outdoor condenser. Designed for true DIY installation, it features pre-charged Quick Connect® line sets and includes a remote for easy, flexible temperature control.

Built for energy efficiency and everyday comfort, the system uses eco-friendly R-454B refrigerant and supports smart app and voice control for seamless operation. Quiet performance, smart comfort features, and strong warranty coverage make this system a reliable, long-term solution for whole-home comfort.

  • 55,000 BTU outdoor condenser with three indoor air handlers
  • Recommended coverage: up to 2250 sq. ft. total
  • Multi-zone system with independent room temperature control
  • DIY installation with pre-charged Quick Connect® line sets
  • Smart Wi-Fi control via MRCOOL® SmartHVAC app
  • Voice control compatible with Amazon Alexa & Google Assistant
  • Quiet operation for everyday comfort
  • Remote control included
  • Strong warranty coverage for long-term peace of mind

Package Includes:

Description
Product Specs
Manuals & Guides

Our new 5th Generation MRCOOL® DIY® 55k BTU Multi-Zone Ductless Mini-Split Condenser is one of the most efficient and innovative units in the industry, and we’re excited to finally share it with you! On top of saving time and money because you won’t need an HVAC professional, this system will give you a good sense of accomplishment because you’ll have installed it yourself! The whole family will be able to enjoy the comfort of this condenser, because it can heat and cool up to 6 different spaces that equal up to 2290 sq. ft., giving you the ability to heat and cool an entire home to your exact specifications using a single MRCOOL® system.

The system’s patented pre-charged Quick-Connect® line sets essentially fast-forward the installation of this system, enabling you to skip the evacuation and charging steps and simplifying the entire process. We utilize new R-454B refrigerant in these line sets, which is a much more environmentally friendly and efficient choice. Features like these assist this unit in achieving its impressive SEER2 of 22, and its HSPF2-4 of 10.6, both of which signify that this system will help you save money throughout the entire time you use it. Once you install this condenser, you’ll be met with a variety of features to help you control your comfort.

One of these features is the Smart HVAC app, available on Apple and Android, that allows you to operate your system from the convenience of your phone. Set schedules, manage different modes, monitor energy consumption, and more all without having to leave the couch! You can also set up voice control through Amazon Alexa or Google Home, meaning you can control your comfort without moving a finger. This system ensures you’ll be enjoying ultimate convenience and superior comfort. The warranty for this unit is one of the best in the industry, and we’re proud to have your back. You can enjoy the peace of mind of a 5 year parts warranty, a 7 year compressor warranty, and, once you enroll in the MRCOOL® Care Program, a Limited Lifetime Replacement warranty. If you need perfect comfort but don’t want to break the bank, this MRCOOL® DIY® condenser is your answer!

Features

  • Intertek listed 5031495
  • Easy DIY installation
  • Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
  • Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
  • The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.
Dimensions 16.34" D x 52.48" H x 37.48" W

SEER2

22

EER2

12

HSPF2-4

10.6

HSPF2-5

8.5

Tonnage

4.6

Cooling Capacity (BTU)

47000

Heating Capacity (BTU)

55000

Voltage (V)

208/230

Phase

1

Cycle

60

Max Fuse Breaker (A)

45

Min Circuit Ampacity (A)

43

Color

White

Zone Capacity

6

Refrigerant Type

R-454B

Refrigerant Volume (OZ)

151.68

Decibel Rating (DBA)

64

Inverter

DC

Line Set Length

25

Max Lineset Length (FT)

221.4

Liquid LIne Size

1/4

Suctio Line Size

(3/8 X4) (1/2 X2)

Compressor Motor Type

Rotary

Auxiliary Heater Included

No

Auxiliary Heater Available

No

Fan Only Option

Yes

Quiet Mode

Yes

Auto Cool

Yes

WIFI Compatibility

Yes

APP Compatibility

Yes

Works with IOS

Yes

Works with Android

Yes

UL Listed

Yes

ETL Listed

Yes

Energy Star Certified

Yes

AHRI Certified

Yes

Registered Warranty

Extended Limited Lifetime*

Base Parts Warranty

5

Base Compressor Warranty

7

Has Batteries

Yes

Contains Electronics

Yes

Contans Chemicals

Yes

Contains Aerosol

Yes

Contains Compressed Gas

Yes

Proposition 65 Warning

Yes

Description
Product Specs
Manuals & Guides

The 5th Generation MRCOOL® DIY® 9K BTU 22.5 SEER Ductless Mini-Split Heat Pump is a highly efficient and powerful solution for heating and cooling areas up to 400 sq. ft. Designed specifically for easy DIY installation, this system removes the need for specialized tools or professional help, allowing for a quick, hassle-free, and budget-friendly setup. One of its most convenient features is the pre-charged 25-foot DIY® QuickConnect® line set, which comes filled with R-454B refrigerant. This eliminates the need for vacuuming, reducing both installation time and labor costs.

Additionally, the DIYPRO® cable replaces the need for electrical conduit, enhancing durability and protection against outdoor elements and wildlife. With multiple control options, adjusting your system is effortless. You can operate it using the wireless remote, the SmartHVAC app for Apple and Android devices, or voice commands via Amazon Alexa and Google Assistant. The Follow Me function enhances comfort by adjusting airflow based on the remote’s location, ensuring even temperature distribution. Dry Mode also helps regulate humidity, keeping indoor conditions comfortable.

Built for long-term durability, the Gold Fin® Condenser offers superior corrosion resistance, making it ideal for coastal environments. Supported by industry-leading warranties—including a limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty—this MRCOOL® DIY® system delivers reliable, year-round climate control with innovative features and easy installation.

Features

  • Intertek listed 5031495
  • Easy DIY installation
  • Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
  • Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
  • The MRCOOL® Smart HVAC Controller® Module and App fully support Google
  • Assistant & Amazon Alexa out of the box.
Dimensions 7.44" D x 11.69" H x 31.57" W

Voltage (V)

208/230

Phase

1

Cycle

60

Mount Type

Wall

Color

White

Max Coverage Area

400 sqft

Oscillation

Yes

Filter Type

Reusable

Auxiliary Heater Included

No

Auxiliary Heater Available

No

Fan Only Option

Yes

Quiet Mode

Yes

Auto Cool

Yes

WIFI Compatibility

Yes

APP Compatibility

Yes

Works with IOS

Yes

Works with Android

Yes

Remote Control Included

Yes

UL Listed

Yes

ETL Listed

Yes

AHRI Certified

Yes

Registered Warranty

Extended Limited Lifetime*

Base Parts Warranty

5

Base Compressor Warranty

7

Has Batteries

Yes

Contains Electronics

Yes

Contains Chemicals

Yes

Contains Aerosol

Yes

Contains Compressed Gas

Yes

Proposition 65 Warning

Yes

Description
Product Specs
Manuals & Guides

The 5th Generation MRCOOL® DIY® 18k BTU Ductless Heat Pump Single Zone Mini-Split Air Handler delivers powerful, energy-efficient heating and cooling for spaces up to 800 sq. ft. Designed for easy, tool-free installation, this system requires no professional experience, specialized tools, or costly service calls—making it a fast and affordable comfort solution for homeowners.

This model features the rugged DIYPRO® cable, which eliminates the need for traditional electrical conduit while offering added durability and protection against outdoor elements, animals, and harsh weather conditions. Installation is not only simplified but also built to last. You can manage your comfort your way. Use the included wireless remote, connect through the SmartHVAC app available on iOS and Android devices, or control the system using voice commands via Amazon Alexa and Google Assistant. The Gold Fin® condenser coating enhances corrosion resistance, making the unit a great fit for coastal or high-humidity areas.

The system also includes advanced comfort features. Follow Me® technology senses the temperature around the remote and adjusts airflow accordingly, ensuring consistent comfort where you are. Dry Mode reduces humidity for better air quality and comfort. To protect your investment, MRCOOL® offers a strong 7-year compressor and 5-year parts warranty, and is also eligible for the MRCOOL® Care Program. Experience hassle-free installation, advanced features, and reliable year-round comfort with the MRCOOL® DIY® 18k Mini-Split Air Handler.

Features

  • Intertek listed 5031495
  • Easy DIY installation
  • Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
  • Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
  • The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.

Dimensions

8.9" D x 13.19" H x 42.52" W

Tonnage

1.5

Voltage (V)

208/230

Phase

1

Cycle

60

Max Fuse Breaker (A)

15

Min Circuit Ampacity (A)

3

Mount Type

Wall

Color

White

Max Coverage Area

800 sqft

Decibel Rating Low (DBA)

19

Decibel Rating High (DBA)

54.5

Number of Speeds

5

Oscillation

Yes

Liquid Line Size

1/4

Suction Line Size

1/2

Filter Type

Reusable

Auxiliary Heater Included

No

Auxiliary Heater Available

No

Fan Only Option

Yes

Quiet Mode

Yes

Auto Cool

Yes

WIFI Compatibility

Yes

APP Compatibility

Yes

Works with IOS

Yes

Works with Android

Remote Control Included

Yes

UL Listed

Yes

ETL Listed

Yes

Energy Star Certified

AHRI Certified

Yes

Registered Warranty

Extended Limited Lifetime*

Base Parts Warranty

5

Base Compressor Warranty

7

Has Batteries

Yes

Contains Electronics

Yes

Contains Chemicals

Yes

Contains Aerosol

Yes

Contains Compressed Gas

Yes

Proposition 65 Warning

Yes

Net Weight (Lbs)

35.49

Gross Depth (In)

17.68

Gross Height (In)

14.29

Gross Width (In)

46.73

Gross Weight (Lbs)

49.6

Description
Product Specs
Manuals & Guides

The 5th Generation MRCOOL® DIY® 24k BTU Ductless Mini-Split Heat Pump offers powerful and efficient heating and cooling for areas up to 1,050 sq. ft. Designed for true DIY installation, it requires no specialized tools or professional help, making it a cost-effective and user-friendly solution for homeowners. This system includes the durable DIYPRO® cable, which eliminates the need for electrical conduit while protecting against weather and wildlife damage, simplifying the setup even further. Controlling your comfort is simple and flexible.

Use the included remote, connect via the SmartHVAC app for iOS and Android, or control the system hands-free with Amazon Alexa or Google Assistant. The Follow Me® feature helps maintain consistent comfort by adjusting based on the temperature near the remote. Dry Mode also contributes to a more pleasant indoor environment by reducing excess humidity. The outdoor unit features a Gold Fin® condenser coating that resists corrosion, making it especially suited for coastal or humid climates.

For peace of mind, the system includes a powerful 7-year compressor warranty and a 5-year parts warranty, and is eligible for the MRCOOL® Care Program. With smart features, easy setup, and long-term reliability, this system delivers comfort you can trust.

Features

  • NEEP ccASHP Listed
  • Intertek listed 5031495
  • Easy DIY installation
  • Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
  • Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
  • The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.
Dimensions 8.9" D x 13.19" H x 42.52" W

Tonnage

2

Voltage (V)

208/230

Phase

1

Cycle

60

Max Fuse Breaker (A)

15

Min Circuit Ampacity (A)

3

Mount Type

Wall

Color

White

Max Coverage Area

1050 sqft

Decibel Rating Low (DBA)

20

Decibel Rating High (DBA)

54

Number of Speeds

5

Oscillation

Yes

Liquid Line Size

3/8

Suction Line Size

5/8

Filter Type

Reusable

Auxiliary Heater Included

No

Auxiliary Heater Available

No

Fan Only Option

Yes

Quiet Mode

Yes

Auto Cool

Yes

WIFI Compatibility

Yes

APP Compatibility

Yes

Works with IOS

Yes

Works with Android

Yes

Remote Control Included

Yes

UL Listed

Yes

ETL Listed

Yes

Energy Star Certified

Yes

AHRI Cetified

Yes

Registered Warranty

Extended Limited Lifetime*

Base Parts Warranty

5

Base Compressor Warranty

7

Has Batteries

Yes

Contains Electronics

Yes

Contains Chemicals

Yes

Contains Aerosol

Yes

Contains Compressed Gas

Yes

Proposition 65 Warning

Yes

Description
Product Specs
Manuals & Guides

This remote is included with each air handler in MRCOOL's 5th Generation DIY or Advantage Mini Split Systems.

Dimensions 2" W x 6" L x 1" H
Works with MRCOOL DIY 5th Generation Mini Splits
Restricted States GU;PR;VI
Color White

Mini Split FAQ

 

What BTU rating should I choose for my air handler?

  • This depends on the coverage area/room size you are trying to heat/cool
  • An Air Handler's BTU is how powerful the fan is. A higher BTU rating will be able to heat/cool a larger area
Air Handler BTU Coverage Area/Room Size (Sq. Ft.)*
6K
Up to 200 Sq. Ft.
9K
Up to 375 Sq. Ft.
12K Up to 500 Sq. Ft.
18K Up to 750 Sq. Ft.
24k Up to 1,000 Sq. Ft.
36k Up to 1,500 Sq. Ft.

 

*Ceiling height, insulation, and local climate may impact the coverage area. For example, an uninsulated room will require more power than a well insulated room.

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