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Description
MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (9K + 9K + 9K + 12K + 12K + 12K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling CassettesMRCOOL DIY 5th Gen 55,000 BTU 6 Zone Ceiling Cassette Mini Split System DIY MULTI6 55HP230D O The MRCOOL DIY 5th Generation 55,000 BTU 6 Zone Ceiling Cassette Mini Split System is the largest capacity DIY system MRCOOL has ever produced engineered for whole home comfort and true do it yourself installation. Perfect for homeowners who want professional grade performance without professional labor, this high efficiency system pairs a 55K BTU condenser
MRCOOL DIY 5th Gen 55,000 BTU 6-Zone Ceiling Cassette Mini-Split System | DIY-MULTI6-55HP230D-O
The MRCOOL DIY 5th Generation 55,000 BTU 6-Zone Ceiling Cassette Mini-Split System is the largest-capacity DIY system MRCOOL has ever produced — engineered for whole-home comfort and true do-it-yourself installation. Perfect for homeowners who want professional-grade performance without professional labor, this high-efficiency system pairs a 55K BTU condenser with your choice of low-profile ceiling cassette air handlers for quiet, concealed heating and cooling.
Designed around MRCOOL’s revolutionary Quick-Connect® pre-charged line sets, installation is fast, clean, and safe — no vacuum pump or refrigerant tools required. With a 21.5 SEER2 rating and R-454B refrigerant, this 6-zone system delivers powerful comfort, high efficiency, and eco-friendly performance year-round.
Key Features & Benefits
- ✔ Supports up to six indoor zones with one 55K BTU condenser.
- ✔ Compatible with 6K, 9K, 12K, and 18K ceiling cassette units for flexible room coverage.
- ✔ 21.5 SEER2 / 10.6 HSPF2-4 efficiency rating for reduced energy costs.
- ✔ Heats to −13°F and cools to 122°F for dependable year-round performance.
- ✔ Flush-mounted ceiling cassettes blend seamlessly with your interior design.
- ✔ Smart control through the MRCOOL app, Alexa, or Google Assistant.
- ✔ Gold Fin® anti-corrosion coating for extended outdoor durability.
- ✔ DIYPro® cable included — simplifies wiring without conduit.
- ✔ Energy Star, AHRI, and ETL listed for performance and safety verification.
- ✔ 5-Year Parts and 7-Year Compressor Warranty (Lifetime optional with MRCOOL Care).
💡 Pro Tip: Skip the contractor markup and save thousands by installing this system yourself! The MRCOOL DIY 5th Gen’s pre-charged Quick-Connect® line sets make it possible for most homeowners to complete their installation in a weekend — no refrigerant handling, vacuum pump, or pro labor required. It’s the perfect combination of innovation, affordability, and independence.
Technical Specifications
- Brand: MRCOOL
- Series: DIY 5th Gen Multi-Zone Mini-Split
- Model: DIY-MULTI6-55HP230D-O
- Cooling Capacity: 47,000 BTU
- Heating Capacity: 55,000 BTU
- Zones: 6
- Refrigerant: R-454B (Pre-Charged Quick-Connect®)
- Efficiency: 21.5 SEER2 | EER2 12 | HSPF2-4 10.6
- Voltage: 208/230V, 1 Phase, 60 Hz
- Compressor: DC Inverter Rotary
- Operating Range: Heat down to −13°F | Cool up to 122°F
- Noise Level: 64 dBA (Outdoor Unit)
- Max Line Set Length: 221.4 ft combined
- Certifications: Energy Star, AHRI, ETL, UL
- Warranty: 5-Year Parts | 7-Year Compressor | Lifetime (MRCOOL Care Registration)
Nationwide Shipping from MRCOOL DIY Direct: Fast delivery anywhere in the U.S. — systems ship factory-direct, fully warrantied, and ready for installation. Enjoy secure freight delivery and real-time tracking from our warehouse to your door.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.4 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Great book
Format: Kindle
I absolutely feel in love with all 4 characters!!! The bedroom scenes were 🌋🌡🔥🔥🔥. I couldn't put this book down!!! I'm hooked for the whole series Book 2 here I come!!!!! Its a fun easy book and story to read!!
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Reviewed in the United States on October 4, 2024
★★★★★ 4
Fun with a late blooming omega
Format: Kindle
I like this book. The story is fun, cute, and sexy. There's just a little drama, some excellent, steamy scenes, and a fairly good relationship building storyline. I especially like how all the main characters are a bit older than the usual 20 somethings I tend to see in this kind of book.
Having said that, I wish there were more descriptions of the places, as well as the food in the fancy restaurant. I enjoyed the cocktails at the club, so I missed that kind of detail when Gray took Madison on a dinner date. I also wish there had been more interaction between Lucas and Madison, and Lucas and Rian. It felt a bit lopsided, with a focus on Rian, Madison, and Gray.
I wish it had been proofread - there are a lot of typos, but nothing too distracting.
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Reviewed in the United States on September 12, 2022
★★★★★ 3
Madison Deserved Better
Format: Kindle
Madison was a beta...except she wasn't any longer. She was a late presenting Omega. And she was struggling. She was tall and thin, not tiny and curvy. She was opinionated. She was everything an Omega was not. After suffering through her first heat, her friends took her to Ardor, a club where Omegas came to safely find Alphas. She's not expecting much but then she connects with a sexy beta. And when she meets his Alphas, they set her body on fire. Maybe, she's found her no-strings-attached heat pack. Maybe, she's found something more.
I could not connect with the characters in this book, so their story never resonated with me. And there was no love story; there was sex. Grey made it clear from the beginning that he had a true love and it was his beta boy, Rian. He went so far as to reassure Rian “Say the word, I’ll never touch her again. Lucas can put the babies in her. I only need you, beta boy”. So, Madison was there for babies, no emotions needed. Nice. No, thank you. I want the Omega to be the center of their world, not an incubator. Lucas and Rian weren't any better. After her heat, they let her leave. Not one of them made her feel valued. No one gave her a reason to stay or even offered a cuddle. And the sex didn't even come across as mind-blowing. Madison deserved better.
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Reviewed in the United States on March 11, 2025
★★★★★ 5
No breakup, very sweet, instalove
Format: Kindle
Omegaverse and doesn't disappoint! Sweet guys, newly Omega FMC. The boyfriends are boyfriends. What's not to love? No angst, no breakup.
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Reviewed in the United States on February 23, 2025
★★★★★ 4
Pretty Darn Good
Format: Kindle
So I’ve been on a omega kick and this definitely hit the spot. Madison was frustrating at times with how she acted towards Lucas, Gray, and Rian. It was like she said towards the end, she didn’t believe she deserved nice things.
It would have been nice to hear from her best friends again. They kind of were there in the beginning and the gone except for mention of text messages received from them. I feel like her friends would have been great help in encouraging Madison to go with the pack and never give Brent another chance because he was toxic.
I loved Rian. His personality was awesome. His humor. His ability to make Madison comfortable whenever she was feeling overwhelmed. And the fact he fell for her and she fell for him first. They are cute together.
I do feel like Lucas was the odd man out though. Like Lucas didn’t develop as much of a relationship with Madison. I would have really liked to see more development in the relationship between them. It was also the same with him and Rian. There is really no relationship displayed. Most of the relationship being displayed is between Rian and Gray.
Nevertheless, I loved reading about the dynamic that came to fruition during the entirety of this story. Madison finally got her happiness. And Brent finally got punched in the face. Everyone got exactly what they deserve.
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Reviewed in the United States on September 6, 2022