SKU: 72821525027

MRCOOL DIY 5th Gen Multi-Zone 4-Zone 55,000 BTU 22 SEER2 (9K + 9K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump

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Description

MRCOOL DIY 5th Gen Multi-Zone 4-Zone 55,000 BTU 22 SEER2 (9K + 9K + 18K + 18K) Ductless Mini-Split Air Conditioner and Heat PumpMRCOOL DIY Multi Zone 5th Generation 55K BTU Four Zone Ductless Mini Split A Heating and AC System You Can Install By Yourself! Heat or cool up to five rooms with the MRCOOL DIY Multi Zone 55,000 BTU 22 SEER2 4 Zone Ductless Heat Pump Split System 9K + 9K + 9K + 12K. This DIY Series multi zone product features easy installation that requires no special tools or training. You'll save thousands of dollars on installation and you can get the amazing air

MRCOOL DIY Multi-Zone 5th Generation 55K BTU Four Zone Ductless Mini Split - A Heating and AC System You Can Install By Yourself!

Heat or cool up to five rooms with the MRCOOL DIY Multi-Zone 55,000 BTU 22 SEER2 4 Zone Ductless Heat Pump Split System - 9K + 9K + 9K + 12K. This DIY Series multi-zone product features easy installation that requires no special tools or training. You'll save thousands of dollars on installation and you can get the amazing air comfort of your dreams due to the condenser’s 48,000 BTU capacity. This units consists of four 9,000 btu air handlers (400 square feet) and one 12,000 btu (550 square feet). A heat pump by design, this ductless HVAC solution can run in reverse and pull in heat from the outdoors when in a heating mode. It comes with a 7 year compressor warranty, (Plus a limited lifetime compressor warranty), 5 year parts manufacturer warranty! 

MRCOOL DIY 5th Gen Multizone 55,000 BTU systems can support up to FIVE indoor units.

The MRCOOL DIY Multi-Zone 55,000 BTU 22 SEER2 4 Zone Ductless Heat Pump Split System - 9K + 9K + 9K + 12K units are super easy to install and require no special training or expensive specialty tools. The DIY system includes Quick Connect lines that are pre-charged with eco-friendly R-454B refrigerant. Due to the Quick Connect line set, you don’t have to hire an HVAC technician to complete the install. We also have simple video instructions on how to install a DIY Multi-Zone unit yourself!

The MRCOOL DIY Multi-Zone 55,000 BTU 22 SEER2 4 Zone Ductless Heat Pump Split System - 9K + 9K + 9K + 12K can cool through the Summer, heat through the Winter, and dehumidify through the wet seasons. Plus, you can quickly check the temperature of each room in your home from the easy to read digital display or from the MRCOOL Smart Controller mobile app. The display on the front of each indoor air handler unit can also display troubleshooting codes and alerts, so you are always aware of any issues with your system. Operate each unit wirelessly with either the included remote or with the MRCOOL Smart Controller app for Apple or Android devices. You also have the ability to control your mini-split unit with Amazon Alexa or Google Home.

The four MRCOOL DIY Multi-Zone air handlers included in this set provide directional control of the heated or cooled air. This distributes the air evenly so everyone in the room can stay comfortable. If you are in a situation that requires forced cooling, you can set your MRCOOL DIY System to manual with the button located on the right side of the unit under the front panel. In this emergency operation mode, you can test the cooling operation of your unit after installation or to complete a maintenance task.

In auto mode, each unit provides air for your home at your desired comfort level. Set your desired temperature, and the HVAC unit will determine how much heat or air conditioning is needed. You can also set this system to a drying function, which will continue to control the space’s air temperature while dehumidifying.

Use the sleep mode at night to save money on your utilities bills and use less energy. Sleep mode operates in an 8 hour window once turned on.

The MRCOOL DIY Multi-Zone 55,000 BTU 22 SEER four-Zone Ductless Heat Pump Split Air Conditioner System - 9K + 9K + 9K + 12K comes with many options, so you can customize your system based on your needs. Limit your energy usage and save money on your utility bill by using the system’s timer function. If your system begins to run low on refrigerant, an alert will appear on the easy-to-read display on the front of each air handler, letting you know there may be a leak. If you desire to keep a room quiet and minimize lighted alerts, you can mute each indoor unit. By muting the system, the buzzer for alerts will not sound and the LED lit display will turn off. Should the unfortunate event of a power outage occur, the MrCool system will automatically shut off and then back on with the same settings once power returns.

Easily maintain your MRCOOL DIY Multi-Zone 55,000 BTU 22 SEER Four-Zone Ductless Heat Pump Split Air Conditioner Unit with alerts and reminders. Any troubleshooting codes will appear on the front display and the user manual contains an index for common codes. Air filter cleaning alerts are automatic, and you can easily keep the minimal indoor units clean with a dry or damp cloth.

Features:

  • Easy DIY® Installation
  • "Pre-charged DIY®
  • Quick Connect Line Set"
  • Simple to Use
  • Multi-room Comfort
  • Energy Efficient DC Inverter
  • 100% Sealed System
  • Gold Fin® Condenser
  • Eco Safe R-454B Refrigerant
  • Smartphone App Controls
  • Lifetime Technical Support
  • Follow Me® Feature
  • Low Ambient Cooling
Shipping Notes
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SKU: 72821525027

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4.8 ★★★★★
Based on 7 reviews
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Twark Main
Boise, US
★★★★★ 5
foundational, dense
Format: Paperback
An extremely important book for anyone interested in the humanities or the sciences, particularly astronomy. It's a foundational work to help guide us towards understanding all of the past, present, and possibly future of humanity. The authors' style is a bit dense and may be more greatly appreciated by polyglots, but they get their points across extremely thoroughly.
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Reviewed in the United States on January 18, 2026
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Jaybird
Natrona Heights, US
★★★★★ 5
Deepest Wisdom Within
Format: Paperback
Fantastic and engaging read. A must for serious comparison into myths. Esoteric wisdom found along paths of clear knowledge from the collective nature source of all epochal imagery (hidden history of the Ancients) unfolds within. Helpful in putting much confusion of modernity into context. Causes one to consider the scientific accomplishments of previous cultures rather than pondering thru occulted and poorly choreographed explanations about how such advanced civilizations achieved their grandeur; which were obviously far more advanced technologically than NASA is by light years! We are re-discovering what many peoples already understood long long ago. Recorded and referenced histories go back 100s of thsds of years and more. The book does not make judgements upon written records or of oral traditions but would implore readers come to a self realization by discovering information that causes one to expand their own minds and concur with known facts and of what remains from the past. High above the casual status quo official, sidetracked narratives that lead to reckless abandon and despair. Dialed in and deep! A real treasure trove. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2019
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Tom Waylett
Fort Morgan, US
★★★★★ 5
Packed with knowledge and mystery!
Format: Paperback
I gave this book 5 stars because this is an exhaustive compendium of mythological knowledge in one short (505 pages) volume. It is professorial in writing design, which includes excerpts in Latin, French and German, as well as the many words and phrases from India, Mesopotamia, northern Europe, Pacifiic islands and so forth. I recommend reading the appendices in the order they are referred to in the main text. I read them last and did not glean an understanding that accompanied the chapters. All in all, this is a researcher's book with 29 pages of bibliography material, with extensive notes at the bottom of the pages so one can stay on text. Good luck and enjoy the perusal of mythology, astronomy/astrology, history, poetry and fable. Great reading!
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Reviewed in the United States on September 8, 2015
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Serendipitygirl
San Leandro, US
★★★★★ 4
Interesting connections made.
Format: Paperback
I bought this because or had been referred to in several other excellent books I've read. Very scholarly and good case made but a bit dry and overdone/redundant at times when making a point. And if you've studied a lot, nothing really new revealed- but if just starting down this road, some great comparisons made.
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Reviewed in the United States on August 19, 2025
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David Warner Mathisen
Natrona Heights, US
★★★★★ 5
Seminal
Format: Paperback
As many have noted, Hamlet's Mill is not an "easy" read, but it is an absolutely worthwhile experience not only to read but to re-read this seminal thesis on the transmission of ancient astronomical knowledge through mythology and legend. Perhaps the fact that a reader must wrestle with this text is part of the reason that it has generated so many fruitful inquiries and theories by later authors. The entire book is rich with ideas, many of which the authors drop and then pick up again and again later in the text, some of which are simply left for later analysts to pursue further on their own. Slice into it at any point and you will find a rich vein of material that can suggest new avenues for you to explore in the ancient history and literatures of the world. Sometimes an easy read or a text that hands you all of its answers and does the work for you is not "what the doctor ordered." Hamlet's Mill definitely makes more sense the second and even third time through. That in and of itself makes this book worth your while -- it's a gift that keeps on giving, a book you can keep on reading, even after you reach the end!
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Reviewed in the United States on April 21, 2011

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