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Description
MRCOOL DIY 5th Gen Multi-Zone 6-Zone 55,000 BTU 22 SEER2 (12K + 12K + 12K + 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 Gen 55,000 BTU 6 Zone Ceiling Cassette Mini Split is the largest capacity DIY multi zone system available. Pair the high output condenser with your choice of low profile ceiling cassette air handlers to heat and cool up to six individual zones with whisper quiet performance, premium efficiency, and true DIY installation. Mix and match 6K,
MRCOOL DIY 5th Gen 55,000 BTU 6-Zone Ceiling Cassette Mini-Split System | DIY-MULTI6-55HP230D-O
The MRCOOL DIY 5th Gen 55,000 BTU 6-Zone Ceiling Cassette Mini-Split is the largest-capacity DIY multi-zone system available. Pair the high-output condenser with your choice of low-profile ceiling cassette air handlers to heat and cool up to six individual zones with whisper-quiet performance, premium efficiency, and true DIY installation.
Mix and match 6K, 9K, 12K, and 18K cassette sizes for bedrooms, living areas, offices, shops, garages, or large open spaces. With up to 22 SEER2 cooling efficiency and HSPF2-4 10.6, this system delivers serious comfort while helping lower utility bills — even in extremes (heats to -13°F, cools to 122°F).
Key Features & Benefits
- ✔ 6 zones from a single 55K condenser for whole-home or multi-room comfort.
- ✔ Compatible with 6K / 9K / 12K / 18K ceiling cassette air handlers (flush-mount, low-profile).
- ✔ Up to 22 SEER2, HSPF2-4 10.6, HSPF2-5 8.5 for excellent efficiency.
- ✔ Quick-Connect® pre-charged line sets: no vacuum pump, no charging required (sold separately).
- ✔ DIYPro® cable included — eliminates electrical conduit for easier installs.
- ✔ Smart control with app, Alexa, and Google Assistant; Energy usage stats & scheduling.
- ✔ Gold Fin® anti-corrosion coating on the condenser for long life.
- ✔ Follow Me® remote tracks temp around you for pinpoint comfort.
- ✔ Energy Star, AHRI, ETL/UL listed for verified performance.
- ✔ Strong warranty: 5-yr parts, 7-yr compressor, and extended Limited Lifetime with MRCOOL® Care enrollment.
💡 Pro Tip: MRCOOL DIY ceiling cassettes include the WMK-19 Smart HVAC Wi-Fi Controller (plug-and-play). Connect it to your air handler, pair to Wi-Fi, and control the system via the MRCOOL or SmartHVAC apps — with built-in Alexa and Google voice support.
Technical Specifications
- Brand / Series: MRCOOL — DIY 5th Gen Multi-Zone Mini-Splits
- Model (Condenser): DIY-MULTI6-55HP230D-O
- Cooling / Heating Capacity: 47,000 BTU / 55,000 BTU
- Zones: Up to 6
- Efficiency: SEER2 22; EER2 12; HSPF2-4 10.6; HSPF2-5 8.5
- Refrigerant: R-454B (151.68 oz)
- Electrical: 208/230V, 1-Phase, 60 Hz; Min. Circuit Ampacity 43A; Max Fuse/Breaker 45A
- Sound Rating: 64 dBA
- Line Set Compatibility: 25 ft standard; max combined length 221.4 ft
- Line Sizes: Liquid 1/4"; Suction: (3/8" × 4) and (1/2" × 2)
- Inverter Compressor: DC Rotary
- Operating Range: Heat to −13°F; Cool to 122°F
- Certifications: Energy Star, AHRI, ETL/UL, Intertek Listed 5031495
- Smart Control: Wi-Fi, App, Alexa, Google Assistant (WMK-19)
- Color: White
- Condenser Dimensions (WxHxD): 37.48" × 52.48" × 16.34" (Net)
- Condenser Weight: 245.81 lbs (Net)
- Shipping Dimensions (WxHxD): 43.11" × 58.27" × 19.49" (Gross)
- Shipping Weight: 267.46 lbs (Gross)
- Warranty: 5-yr parts / 7-yr compressor; Extended Limited Lifetime with MRCOOL® Care (registration required)
- SKU / UPC / GTIN: DIY-MULTI6-55HP230D-O / 840255587488 / 840255587488
Note: Quick-Connect® pre-charged line sets and ceiling cassette air handlers are sold separately to build your ideal 6-zone package.
Why buy from MRCOOL DIY Direct? Genuine MRCOOL equipment, expert support, and nationwide delivery — perfect for DIYers who want pro-level results without pro-level labor costs.
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
4.6 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Fantastic quality
Style: Wi-Fi, Size: 128GB, Color: Pink, Configuration: Without AppleCare+
iPad works great. I had some issues with the delivery, but once I received the package everything was fine. I use it every day and it’s super easy to use, battery life is really good and it does everything I need it to
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Reviewed in the United States on May 18, 2026
★★★★★ 5
To use or not to use
Style: Wi-Fi, Size: 128GB, Color: Silver, Configuration: Without AppleCare+
Very easy to set up
Looked brand new
Works like new
Well worth the money
The battery lasts all damn day
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
★★★★★ 4
Its Great! Except one tiny detail
Style: Wi-Fi, Size: 512GB, Color: Pink, Configuration: Without AppleCare+, Style: Wi-Fi, Size: 512GB, Color: Pink, Configuration: Without AppleCare+
Ipad works great, easy to set up and everything transferred from the cloud from a backup I had (thank god because my other ipad is completely dead). Everything is in order except they put the magnets in the wrong spot xD. It doesnt matter functionality wise and I feel its more hassle to exchange than its worth so I am going to keep the iPad. With the case its in it doesnt really matter because theres a spot already for the pen.
4/5 stars
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Reviewed in the United States on May 13, 2026
★★★★★ 5
My iPad A16 Experience
Style: Wi-Fi, Size: 256GB, Color: Blue, Configuration: Without AppleCare+
The Gameplay Handles Very Well As It's Condition Is Really Good, The Screen Protection Is Very Durable On Hard Objects Tho Especially W Scratches Which Is Surprisingly different And Ofc The Battery Life It Does Last All Day So They Are Very Reliable On Their Answer, Very Good iPad.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
I like the style, fit, and quality of these tank shirts.
Color: Hot Pink, Size: Large
I absolutely love these tanks!!! They are very light and comfortable to wear anytime/ anywhere. I have bought lots of colors to mix and match my wardrobe. I'm 5'4" tall and weigh around 135 lbs. I normally wear a medium, but I am a busty girl, so I chose the large size instead. I'm happy with my choice. I wouldn't size up, if you are planning to buy, unless you have a bigger bust like myself. Then I would recommend sizing up. It can be worn either by itself or with a light jacket, vest, or cardigan sweater with a skirt/ slacks/ jeans/ whatever you fancy. This style tank can be worn for a casual occasion, lounging around your home, or can be paired for a fancier event depending on what you wear it with. Love that!
I wash mine in cold, with like colors. Then hang dry so my tanks will last. These tanks have held their color nicely after several washes later. As long as I take care of them, I know they'll last. I prefer this seller when I buy various color tanks and styles because the fit and quality are a great value to me. These tanks don't feel cheap, ultra- thin, and are not see through like others. Go for it if your on the fence to try it! I don't think you'll regret it!
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Reviewed in the United States on May 1, 2026
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