MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (6K + 6K + 6K + 6K + 9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes
SKU: 54990273019

MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (6K + 6K + 6K + 6K + 9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes

Sale price$5403.15 Regular price$6003.50
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (6K + 6K + 6K + 6K + 9K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling CassettesThe MRCOOL DIY 5th Gen 55,000 BTU 6 Zone Ceiling Cassette Mini Split System is the largest capacity DIY unit available, capable of heating and cooling up to six individual zones with precision and efficiency. Designed for powerful whole home performance, it combines a high output condenser with your choice of low profile ceiling cassette air handlers all with smart control and DIY installation in mind. This system supports any combination of 6K, 9K,

The MRCOOL DIY 5th Gen 55,000 BTU 6-Zone Ceiling Cassette Mini-Split System is the largest capacity DIY unit available, capable of heating and cooling up to six individual zones with precision and efficiency. Designed for powerful whole-home performance, it combines a high-output condenser with your choice of low-profile ceiling cassette air handlers — all with smart control and DIY installation in mind.

This system supports any combination of 6K, 9K, 12K, and 18K ceiling cassettes, allowing full customization for bedrooms, living rooms, garages, offices, or large open spaces. With a 21.5 SEER2 rating, it maximizes efficiency while delivering serious comfort even in extreme weather conditions.

Whether you’re retrofitting an older home or building out a modern multi-room system, this DIY 6-zone setup offers unmatched versatility — without the need for a pro HVAC installer.

Key Features:

  • Supports six indoor zones with a single 55K condenser

  • Compatible with 6K, 9K, 12K, and 18K ceiling cassette units

  • 21.5 SEER2 energy efficiency for lower utility bills

  • Ideal for large homes, offices, shops, or multi-room spaces

  • Flush-mounted ceiling cassettes blend seamlessly into any décor

  • DIY installation with included quick-connect fittings

  • Operates in extreme temperatures: heats to -13°F, cools to 122°F

  • App, Alexa, and Google Assistant smart control integration

  • Corrosion-resistant Gold Fin® condenser coating

  • Backed by 5-year parts and 7-year compressor warranty

 

DIY OUTTASIGHT BROCHURE

MULTIZONE BROCHURE

INSTALL MANUAL

REMOTE MANUAL

WARRANTY DOC

ACCESSORY MANUAL

 

 

BRAND NAME MRCOOL
SERIES
DIY 5th gen Multi-Zone Mini-splits
MODEL
DIY-MULTI6-55HP230D-O
GTIN 840255587488
UPC 840255587488
SHORT DESCRIPTION
MRCOOL® 55k DIY 5th Generation 6 Zone Multi-Zone Mini-Split Condenser 230v
LONG DESCRIPTION
Our new 5th Generation MRCOOL® DIY® 55k BTU Multi-Zone Ductless Mini-Split Condenser is one of the most efficient and innovative units in the industry, and we’re excited to finally share it with you! On top of saving time and money because you won’t need an HVAC professional, this system will give you a good sense of accomplishment because you’ll have installed it yourself! The whole family will be able to enjoy the comfort of this condenser, because it can heat and cool up to 6 different spaces that equal up to 2290 sq. ft., giving you the ability to heat and cool an entire home to your exact specifications using a single MRCOOL® system. The system’s patented pre-charged Quick-Connect® line sets essentially fast-forward the installation of this system, enabling you to skip the evacuation and charging steps and simplifying the entire process. We utilize new R-454B refrigerant in these line sets, which is a much more environmentally friendly and efficient choice. Features like these assist this unit in achieving its impressive SEER2 of 22, and its HSPF2-4 of 10.6, both of which signify that this system will help you save money throughout the entire time you use it. These line sets are sold separately. Once you install this condenser, you’ll be met with a variety of features to help you control your comfort. One of these features is the Smart HVAC app, available on Apple and Android, that allows you to operate your system from the convenience of your phone. Set schedules, manage different modes, monitor energy consumption, and more all without having to leave the couch! You can also set up voice control through Amazon Alexa or Google Home, meaning you can control your comfort without moving a finger. This system ensures you’ll be enjoying ultimate convenience and superior comfort. The warranty for this unit is one of the best in the industry, and we’re proud to have your back. You can enjoy the peace of mind of a 5 year parts warranty, a 7 year compressor warranty, and, once you enroll in the MRCOOL® Care Program, a Limited Lifetime Replacement warranty. If you need perfect comfort but don’t want to break the bank, this MRCOOL® DIY® condenser is your answer!
FEATURE LIST
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.
SEER2 22
EER2 12
HSPF2-4 10.6
HSPF2-5 8.5
TONNAGE 4.6
COOLING CAPACITY (BTU) 47000
HEATING CAPACITY (BTU) 55000
VOLTAGE (V) 208/230
PHASE 1
CYCLE 60
MAX FUSE BREAKER (A) 45
MIN CIRCUIT AMPACITY (A) 43
COLOR White
ZONE CAPACITY 6
REFRIGERANT TYPE R-454B
REFRIGERANT VOLUME (OZ) 151.68
DECIBEL RATING (DBA) 64
INVERTER DC
LINE SET LENGTH 25
MAX LINESET LENGTH (FT) 221.4
LIQUID LINE SIZE 1/4
SUCTION LINE SIZE
(3/8 X4) (1/2 X2)
COMPRESSOR MOTOR TYPE Rotary
AUXILIARY HEATER INCLUDED No
AUXILIARY HEATER AVAILABLE No
FAN ONLY OPTION Yes
QUIET MODE Yes
AUTO COOL Yes
WIFI COMPATIBILITY Yes
APP COMPATIBILITY Yes
WORKS WITH IOS Yes
WORKS WITH ANDROID Yes
UL LISTED Yes
ETL LISTED Yes
ENERGY STAR CERTIFIED Yes
AHRI CERTIFIED Yes
REGISTERED WARRANTY
Extended Limited Lifetime*
BASE PARTS WARRANTY 5
BASE COMPRESSOR WARRANTY 7
HAS BATTERIES Yes
CONTAINS ELECTRONICS Yes
CONTAINS CHEMICALS Yes
CONTAINS AEROSOL Yes
CONTAINS COMPRESSED GAS Yes
PROPOSITION 65 WARNING Yes
NET DEPTH (IN) 16.34
NET HEIGHT (IN) 52.48
NET WIDTH (IN) 37.48
NET WEIGHT (LBS) 245.81
GROSS DEPTH (IN) 19.49
GROSS HEIGHT (IN) 58.27
GROSS WIDTH (IN) 43.11
GROSS WEIGHT (LBS) 267.46
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54990273019

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S
Verified Purchase
SD
Waukegan, US
★★★★★ 5
.
Format: Paperback
Good for Kids
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
B
Verified Purchase
Bridget Sheppard
Alexandria, US
★★★★★ 5
The perfect summer romance in a beautiful setting!
Format: Kindle
I give this book 4.75 stars rounded up to five for the purposes of this review. I really liked this story and flew through! Anyone looking for a great summer romance can find it here. This was my first Carley Fortune book, but I’d like to read more (and plan to read the sequel to this one very soon). It was so fun to experience Percy and Sam’s relationship as it developed from close friends at the age of thirteen to something much more as they got older. Their relationship was so deep and respectful. They knew everything about each other and shared so many wonderful experiences together. It felt like a very natural evolution from friendship to romance (although I did want to smack Sam a couple times, but he was young, so I’ll give him a pass). And the setting of Barry’s Bay was a beautiful, relaxing place. I wish I could live in a cabin on that lake! There were some great side characters in this book too. Sue was such a kind, loving person. Charlie was sometimes difficult to like, but he really wasn’t a bad person. Delilah definitely annoyed me at times, but she turned out to be such a good friend to Percy. I wish we’d gotten a little bit more of Chantal, because she also seemed like an amazing friend. I don’t always like a miscommunication trope in terms of breakups in romances, but this one actually made sense, because Percy and Sam were so young and trying to figure themselves out, as well as their romantic relationship. So, that part of it didn’t turn me off the overall story. I loved the ending (it made me cry), although I wish Sue’s storyline could have been different. In my opinion, this was the perfect summer romance, so if that’s what you’re looking for, I would definitely encourage you to read it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 19, 2025
S
Verified Purchase
Sjeswani23
Charlottesville, US
★★★★★ 4
Sam + Percy 💕
Format: Kindle
Every Summer After is a perfect summer read and although it had been in my TBR for so long, I really enjoyed it. I’m a sucker for second chance romance and childhood friends to lovers and I was captivated immediately. Their friendship blossomed into a cute young love romance until one impulsive decision during a vulnerable moment lead to the downfall of Sam & Percy’s relationship. Now over a decade later, Percy makes the trip back to the lake to attend a funeral and memories flood back of her summers with Sam. But does time heal all wounds? Read to find out. I really love young love romances because they are innocent with heighten emotions, personal growths and can be extremely messy. Not to mention the angst that keeps me wanting to read more and this book definitely kept me engaged.
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Reviewed in the United States on September 7, 2025
N
Verified Purchase
Nate
Lexington, US
★★★★★ 5
Warm Blanket Read
Format: Paperback
Wow, I didn’t know how much I needed this and I inhaled it. I needed to feel a bit of summer. I needed a small town. What I didn’t know I needed was a big love story. This was perfect and escapist. A perfect read to make you feel good and characters to swoon over. Can’t wait for the show now.
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Reviewed in the United States on May 30, 2026
S
Verified Purchase
Sarah W.
Houston, US
★★★★★ 5
Heartfelt and Nostalgic
Format: Paperback
What can I say to effectively capture the beauty, sweetness, and depth of this story? Sam and Percy’s story is sweet and nostalgic, and it made me feel like I was a teenager again right along with them. It brought back memories of my own teenage years spent camping at various lakes with family and friends; memories I hadn’t thought about in awhile. Barry’s Bay is a character in its own right as well, and I had such a vivid picture in my mind of what it must have looked like. There were moments when I laughed out loud, and moments that made me cry. The exploration of guilt and what it does to a person and the ones they love was so emotional and real. And the sweetness and love between Percy and Sam, despite all their mistakes and miscommunications, is something that will stick with me for a long time. There is so much heart in this story. I love a good friends-to-lovers romance, and have read quite a few, but this is easily one of the best.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026

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