MRCOOL DIY 36,000 BTU Ductless Mini-Split AC with Heat Pump - 4 Zone Wall Mounted 9K+9K+9K+9K with 16FT, 16FT, 16FT & 25FT Install Kit, 230 Volt

MRCOOL DIY 36,000 BTU Ductless Mini-Split AC with Heat Pump - 4 Zone Wall Mounted 9K+9K+9K+9K with 16FT, 16FT, 16FT & 25FT Install Kit, 230 Volt

SKU #: DIYM436HPW00B00

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Lead time: This product ships in 5-10 Business Days

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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.

    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 4-Zone Includes:

    • Multi-Zone Condenser
    • Wall Mounted Air Handlers (x4)
    • Remote Controls (x4)
    • Installation Kits (x4)

    BTU options:

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

    • 36,000 BTU - (9,000 + 9,000 + 12,000+ 18,000)
    • 36,000 BTU - (9,000 + 12,000 + 12,000+ 12,000)
    • 36,000 BTU - (12,000 + 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 less than 4 zones? Check out the MRCOOL DIY 2-Zone and MRCOOL DIY 3-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' and 25' 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.

    MRCOOL DIY Coupler


    When one standard size DIY QUICK CONNECT LINE SET is not long enough, two standard QUICK CONNECT LINE SETS can be combined using our DIY COUPLER to increase the desired length of the QUICK CONNECT LINE SETS.

    Select the DIY QUICK CONNECT LINE SET size to be lengthened (1/4 or 1/2) or (3/8 or 5/8). Then select the second standard line set with corresponding specifications for combined connection using the coupler (as shown here).

    Use a wrench to assemble the coupler with both F1 and F2 on the corresponding lineset. Make sure the thread is screwed to the bottom until it stops (as shown here).

    After the connection is complete, cover the F1, F2, and coupler connections with the grey insulating sleeve to help prevent condensation. Slide the insulation sleeves together ensuring no copper wiring is exposed and secure in place using tape.

    MRCOOL Coupler MRCOOL Coupler
    Tech Specs


    Lead TimeThis product ships in 5-10 Business Days
    UL ListedNo
    Prop 65No
    Warranty5 Year Parts; 7 Year Compressor
    Weight (lb.)419.7
    Height (in.)34.06
    Width (in.)19.69
    Length (in.)42.91