MRCOOL DIY 5th Gen 18,000 BTU 2-Zone Ductless Mini Split Air Conditioner and Heat Pump with 6K+6K BTU Ceiling Cassette Indoor Units

MRCOOL DIY 5th Gen 18,000 BTU 2-Zone Ductless Mini Split Air Conditioner and Heat Pump with 6K+6K BTU Ceiling Cassette Indoor Units

SKU: DIYM218HPC00D00

Sale price$4,633.00 Regular price$6,029.00


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

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 400 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 400 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® Series OuttaSight® 6K BTU 230V One-Way Ceiling Cassette is a powerful and efficient climate control solution for spaces up to 200 sq. ft. Engineered for easy DIY installation, this system eliminates the need for specialized tools, making setup simple, cost-effective, and hassle-free. Designed to integrate seamlessly into multi-zone configurations, the cassette fits neatly between 16” ceiling joists, including pre-manufactured I-joists, for a clean, flush-mounted appearance. Unlike traditional ceiling cassettes that require extensive ductwork or inconvenient wall space, rethis unit offers a flexible installation ideal for both new builds and retrofit projects.

The cassette pairs effortlessly with the MRCOOL® DIY® Quick Connect® line set, which comes pre-charged with R-454B, an environmentally friendly refrigerant that eliminates the need for vacuuming. Advanced filtration enhances indoor air quality, while the Elevation function allows easy filter maintenance by lowering the panel for convenient access. With quiet operation and multiple control options—including a wireless remote, SmartHVAC app, and voice commands via Amazon Alexa and Google Assistant—this system offers personalized comfort. Backed by an industry-leading limited lifetime warranty, a 7-year compressor warranty, and a 5-year parts warranty, the MRCOOL® DIY® Outtasight® Ceiling Cassette delivers long-term reliability, advanced technology, and year-round comfort.

Features

  • Low Profile Installation
  • Fits between 16" Ceiling Joists
  • Works with Multi and Single Zone Systems
  • Two-Stage DC motor
  • Quiet Operation
  • Multiple Operating Modes
  • Remote Included
  • Advanced Filtration
  • Swing Technology
DIMENSIONS & WEIGHT
Dimensions 13.19" D x 8.98" H x 50.31" W
Net Weight (Lbs) 45
Gross Weight (Lbs) 88
GENERAL INFORMATION
Mount Type Ceiling
Color White
Max Coverage Area 200
Air Flow Direction 1-Way
Quiet Mode Yes
CAPACITY & PERFORMANCE
CFM 341 / 294 / 259 / 235 / 235
Cycle 60
COMPRESSOR & MOTORS
Blower Motor RPM 1024/944/784
NOISE LEVELS
Decibel Rating (DBA) 35.5
Decibel Rating Low (DBA) 23.5
Decibel Rating High (DBA) 46.5
ELECTRICAL REQUIREMENTS
Voltage (V) 208-230
Phase 1
Max Fuse Breaker (A) 15
Min Circuit Ampacity (A) 3
Rated Load 0.8
REFRIGERANT & PIPING
Refrigerant Type R-454B
Liquid Line Size 1/4
Suction Line Size 3/8
FILTER & HEATING
Filter Type Reusable
CONTROLS & CONNECTIVITY
Fan Only Option Yes
Sleep Mode Yes
Auto Cool Yes
WIFI Compatibility Yes
APP Compatibility Yes
Works with IOS Yes
Works with Android Yes
Remote Control Included Yes
SAFETY
Has Batteries Yes
Contains Electronics Yes
Contains Chemicals Yes
Contains Aerosol Yes
Contains Compressed Gas Yes
Proposition 65 Warning Yes
Restricted States
  • GU
  • PR
  • VI
WARRANTY
Registered Warranty Limited Lifetime Compressor
Base Warranty 5-Year Part/7-Year Compressor
Bas Parts Warranty 5 Years
Registered Compressor Warranty Limited Lifetime Compressor
Base Compressor Warranty 7 Years
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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