MRCOOL DIY 5th Gen 18,000 BTU 2-Zone Ductless Mini Split Air Conditioner and Heat Pump with 9K+9K BTU Wall Mount Indoor Units

MRCOOL DIY 5th Gen 18,000 BTU 2-Zone Ductless Mini Split Air Conditioner and Heat Pump with 9K+9K BTU Wall Mount Indoor Units

SKU: DIYM218HPW03D00

Sale price$3,073.00 Regular price$3,999.00


Line Set Length: 16 Ft. + 16 Ft.
Air Handler Type: Wall

In Stock Estimated delivery: Jul 27th-5th
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Package Overview

The MRCOOL® DIY® 18,000 BTU Multi-Zone Ductless Mini Split System provides efficient heating and cooling for up to 800 sq. ft., using two indoor air handlers for independent comfort in multiple rooms. Designed for true DIY installation, this system pairs a powerful outdoor condenser with pre-charged Quick Connect® line sets and an included remote for easy, flexible temperature control.

Built for energy efficiency and everyday convenience, the system uses eco-friendly R-454B refrigerant and supports smart app and voice control, delivering quiet, reliable comfort with long-term peace of mind.

  • 18,000 BTU outdoor condenser with two indoor air handlers
  • Recommended coverage: up to 800 sq. ft. total
  • Multi-zone system with independent room control
  • DIY installation with pre-charged Quick Connect® line sets
  • Smart Wi-Fi control via MRCOOL® SmartHVAC app
  • Voice control with Amazon Alexa & Google Assistant
  • Quiet operation for comfortable daily use
  • Remote control included
  • Strong warranty coverage for long-term reliability

Package Includes:

Description
Product Specs
Manuals & Guides

We are thrilled to announce our new 5th Generation MRCOOL® DIY® 18k BTU Multi-Zone Ductless Mini Split Condenser, which is the best and most convenient way to get comfortable. You won’t need the services of an HVAC professional to install this unit, because it’s do-it-yourself! Achieving a SEER2 rating of 23.9 and an HSPF2-4 rating of 10, you can rest easy knowing this unit will help you save money as you chill. This condenser can also support up to three air handlers, meaning it can heat and cool three rooms that are a combined 750 square feet in size, making it a perfect option if you have spare bedrooms in need of heating and cooling.

What makes this system different is our patented pre-charged Quick Connect® line sets filled with R-454B, an incredibly efficient and eco-friendly refrigerant. This switch from the previous refrigerant makes the system even more efficient and sustainable than before. The design of these innovative line sets allow you to install the system yourself, saving you time and money.

This condenser is more than just a heating and cooling unit. When operating as a system, you will be able to experience total customization with the unit’s wealth of features. For example, you can integrate your system with Amazon Alexa or Google Home through the Smart HVAC app, allowing you to control your system with your voice and monitor its operation with the touch of a button. You can also set schedules, temperature ranges, and mode of operation through the app. The power of comfort is in your hands with this system. In the unlikely event that something happens to the system, we’ve got you covered. The DIY® series comes with one of the best warranties in the industry - a 7 year compressor warranty, a 5 year parts warranty, and a Limited Lifetime Replacement warranty with enrollment in the MRCOOL® Care Program. Give yourself the best comfort with the DIY®.

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 & WEIGHT
Dimensions 13.46" D x 26.5" H x 35.04" W
GENERAL INFORMATION
Color White
Inverter DC
Quiet Mode Yes
Contans Chemicals Yes
CAPACITY & PERFORMANCE
SEER2 23.9
EER2 13
HSPF2-4 10
HSPF2-5 7.8
Tonnage 1.5
Cooling Capacity (BTU) 18000
Heating Capacity (BTU) 18000
Cycle 60
Zone Capacity 3
COMPRESSOR & MOTORS
Compressor Motor Type Rotary
NOISE LEVELS
Decibel Rating (DBA) 60
ELECTRICAL REQUIREMENTS
Voltage (V) 208/230
Phase 1
Max Fuse Breaker (A) 20
Min Circuit Ampacity (A) 16
REFRIGERANT & PIPING
Refrigerant Type R-454B
Refrigerant Volume (OZ) 61.73
Line Set Length 25
Max Lineset Length (FT) 172.2
Liquid LIne Size 1/4
Suctio Line Size 3/8
FILTER & HEATING
Auxiliary Heater Included No
Auxiliary Heater Available No
CONTROLS & CONNECTIVITY
Fan Only Option Yes
Auto Cool Yes
WIFI Compatibility Yes
APP Compatibility Yes
Works with IOS Yes
Works with Android Yes
SAFETY
UL Listed Yes
ETL Listed Yes
Energy Star Certified Yes
AHRI Certified Yes
Has Batteries Yes
Contains Electronics Yes
Contains Aerosol Yes
Contains Compressed Gas Yes
Proposition 65 Warning Yes
WARRANTY
Registered Warranty Extended Limited Lifetime*
Base Parts Warranty 5
Base Compressor Warranty 7
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 & WEIGHT
Dimensions 7.44" D x 11.69" H x 31.57" W
GENERAL INFORMATION
Mount Type Wall
Color White
Max Coverage Area 400 sqft
Oscillation Yes
Quiet Mode Yes
CAPACITY & PERFORMANCE
Cycle 60
ELECTRICAL REQUIREMENTS
Voltage (V) 208/230
Phase 1
FILTER & HEATING
Filter Type Reusable
Auxiliary Heater Included No
Auxiliary Heater Available No
CONTROLS & CONNECTIVITY
Fan Only Option Yes
Auto Cool Yes
WIFI Compatibility Yes
APP Compatibility Yes
Works with IOS Yes
Works with Android Yes
Remote Control Included Yes
SAFETY
UL Listed Yes
ETL Listed Yes
AHRI Certified Yes
Has Batteries Yes
Contains Electronics Yes
Contains Chemicals Yes
Contains Aerosol Yes
Contains Compressed Gas Yes
Proposition 65 Warning Yes
WARRANTY
Registered Warranty Extended Limited Lifetime*
Base Parts Warranty 5
Base Compressor Warranty 7
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
Dimensions 2" W x 6" L x 1" H
GENERAL INFORMATION
Color White
Works with MRCOOL DIY 5th Generation Mini Splits
Restricted States
  • GU
  • PR
  • VI

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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