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.
There are several combinations of BTU ratings to choose from for the DIY Multi-Zone series.
DIY 4-Zone Includes:
Note: *If all indoor units (handlers) run simultaneously, their combined BTU output will not exceed the BTU rating of the outdoor unit (condenser).
Need less than 4 zones? Check out the MRCOOL DIY 2-Zone and MRCOOL DIY 3-Zone
One Hose, One Solution
Multi-zone technology gives you flexibility and control whenever and wherever you want it.
5 Zone Options
Now you'll be able to heat and cool up to 5 rooms at a time with the MRCOOL® DIY® 5 Zone Multi-Zone unit.
Easy DIY® Installation
Pre-charged 410 Quick Connect Line-set
Available in 16', 25', 35', 50', 66', & 75' options, pre-charged linesets allow you to install this innovative ductless system without special tools, equipment, or training.
NEW DIYPRO™ Cable
Safety & Durability
The included DIYPro™ Cable eliminates the need for electrical conduit providing higher mechanical protection and durability.
Follow Me® Function
Keep the remote close by, and MRCOOL DIY® will track the air temperature around you to ensure you receive maximum comfort.
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
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.
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.
Enhanced Control from Anywhere
Control your MRCOOL DIY® anywhere with your Apple or Android smart device and an internet connection.
We made Sleep Mode easy to program to save money, and let you sleep a little easier.
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
Live on the coast? Don’t worry, our condenser is built to resist long term corrosion.
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.
Best Warranty in the Business
Limited Lifetime Compressor*, 7 Year Compressor Replacement*, 5 Year Parts
The DIY® 4th Gen Multi-Zone comes with a LIMITED LIFETIME compressor warranty, a 7-year compressor replacement warranty, and a standard 5-year parts warranty for the original registered owner.
The MRCOOL DIY Quick Connect Line Set is 100% accurately pre-charged with R410A refrigerant. This makes installation quick and easy with no vacuum required. Strong UV protective insulation provides extra protection against sun damage, weather, or destruction from animals or insects. The MRCOOL DIY® Quick Connect® Line Set is intended for use with the MRCOOL DIY Single or Multi-Zone Units.
NOW INCLUDED - The DIYPro™ cable - a stronger electrical conduit that protects your cables from the weather and from gardening tools.
Line Set Features & Benefits: