MRCOOL DIY Multi-Zone Ductless Mini-Split Air Conditioner with Heat Pump - 3 Zone Wall Mounted, 230 Volt

MRCOOL DIY Multi-Zone Ductless Mini-Split Air Conditioner with Heat Pump - 3 Zone Wall Mounted, 230 Volt


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$2,865.00 - $4,787.00

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Ductless Home Solution for Do-It-Yourself Heating & Cooling

The MRCOOL DIY Multi-Zone Series ductless mini-split is the only whole-home mini-split solution that you can install yourself. Simple, easy air comfort in up to four zones.

Don't see the exact configuration you need? Take advantage of all MRCOOL has to offer with their complete DIY system creator. Choose between 2 condenser sizes, multiple head options with several BTU ratings, and a plethora of lineset combinations giving you the ability to create nearly 700 MRCOOL DIY systems! You can configure your perfect DIY system for your home, grow room, or anything in between! To start on your own custom configuration, click here!

MRCOOL's DIY Multi-Zone heat pump air conditioner, the latest and greatest iteration of the only ductless mini-split system on the market explicitly designed for amateur installation, is now even more efficient, versatile and easy to install. You don't need special tools or training to install this high-efficiency heat pump.

Between the money you save by installing yourself and the rebates available for ENERGY STAR models, the MRCOOL DIY is the most cost-efficient air conditioner on the market today.

When appropriately sized this system is the ideal DIY solution for room comfort and with the factory-installed low ambient cooling technology it's also the ideal DIY solution for server rooms, greenhouses, and any other application that requires cooling all year.

The MRCOOL DIY includes the new SmartHVAC Wi-Fi control module that features an easier setup process, improved functionality, and works with Amazon Alexa and Google Assistant. If you want great air comfort without paying an arm and a leg for installation, you want an easy-to-use MRCOOL DIY Series ductless heat pump.

Home with 4 units

There are several combinations of BTU ratings to choose from for the DIY Multi-Zone series.

DIY 3-Zone Includes:

  • Multi-Zone Condenser
  • Wall Mounted Air Handlers (x3)
  • Remote Controls (x3)
  • Installation Kits (x3)

BTU options:

  • 27,000 BTU (9,000 + 9,000 + 9,000)
  • 27,000 BTU (9,000 + 9,000 + 12,000)
  • 30,000 BTU (9,000 + 9,000 + 12,000)
  • 33,000 BTU (9,000 + 12,000 + 12,000)
  • 36,000 BTU (9,000 + 12,000 + 18,000)

  • 36,000 BTU (9,000 + 18,000 + 18,000)
  • 36,000 BTU (9,000 + 9,000 + 18,000)
  • 36,000 BTU (9,000 + 9,000 + 24,000)
  • 36,000 BTU (12,000 + 12,000 + 12,000)
  • 36,000 BTU (12,000 + 12,000 + 18,000)

Note: *If all indoor units (handlers) run simultaneously, their combined BTU output will not exceed the BTU rating of the outdoor unit (condenser).

Need more zone options for air conditioning in multiple areas? Check out the MRCOOL DIY 2-Zone and MRCOOL DIY 4-Zone

Features and Benefits of MRCOOL DIY Multi-Zone

Multi Zone


One Hose, One Solution

Multi-zone technology gives you flexibility and control whenever and wherever you want it.

Easy DIY Installation

Easy DIY® Installation

Precharged 410 Quick Connect Lineset

Available in 16', 25', 50', & 75' options, pre-charged linesets allow you to install this innovative ductless system without special tools, equipment, or training.

Smartphone App

Smartphone App

Enhanced Control from Anywhere

Control your MRCOOL DIY® anywhere with your Apple or Android smart device and an internet connection.

Follow Me Function

Follow Me® Function

Personalized Performance

Keep the remote close by, and MRCOOL DIY® will track the air temperature around you to ensure you receive maximum comfort.

Leakage Detection

Leakage Detection

Protecting Your Investment

When the MRCOOL DIY® detects low coolant an alarm will sound to alert you to the problem. This will prevent damage to the compressor while you maintain high air comfort.

Low Ambient Cooling

Low Ambient Cooling

Cooling down to 5°F

This feature makes the MRCOOL DIY® the ideal system for server rooms, greenhouses, and any other application that requires cooling all year.

Auto Restart

Auto Restart

Never Lift a Finger

Power outage? Don’t worry, the MRCOOL DIY® auto restart will have the unit running again in no time at all.

Sleep Mode

Sleep Mode

24-Hour Comfort

We made Sleep Mode easy to program to save money, and let you sleep a little easier.

Louver Memory

Louver Position Memory

Remembers So You Don’t Have To

Horizontal louver will automatically move to the same position as you set last time the unit was turned on.

Gold Fin Condenser

Gold Fin Condenser

Corrosion Resistant

Live on the coast? Don’t worry, our condenser is built to resist long term corrosion.

Works with Goole and Amazon Assistant

Digital Assistant Ready

Google Assistant & Amazon Alexa

The new MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.

DIY Quick Connect Line Set

The MRCOOL DIY Quick Connect Line Set is 100% accurately precharged with R410A refrigerant. This makes installation quick and easy with no vacuum required. The MRCOOL DIY® Quick Connect® Line Set is intended for use with the MRCOOL DIY Single or Multi-Zone Units.

NOTE ON EXTENDING LINE SETS: To properly extend MRCOOL DIY line sets, you must match the line set and coupler size with the indoor air handler that you are needing to expand. The MRCOOL Quick Connect Line Sets and line set couplers come in two size options depending on the BTU rating of your air handlers you are needing to extend.

  • Line sizes 1/4", 1/2" & 3/8", 5/8"
  • Available in 16ft, 25ft, 50ft, & 75ft lengths
  • Multi-Zone Condenser includes adapter for 24K Air Handler (3/8", 5/8" Line Size)
  • Simple to Use Screw-on Quick Connect Valves
  • Kink Resistant & Leak Proof
  • 100% Accurately Pre-charged R-410A Refrigerant
  • Connect Line Sets Together to Create Longer Length Using the MRCOOL DIY Coupler
MRCOOL Coupler
MRCOOL Condenser

MRCOOL DIY Multi-Zone Ductless Mini-Split Air Conditioner with Heat Pump - 3 Zone Wall Mounted, 230 Volt Videos

Tech Specs