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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
4.8 ★★★★★
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Product Reviews
★★★★★ 5
Better than rechargeable
Color: Graphite
Easy Bluetooth connection and up and running with ease. Buying everything rechargeable, wasn't thrilled to see a replaceable battery until I found the battery was a simple AA battery and when using, simple battery replacement was faster than stopping to recharge. Good quality, compact and works.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
★★★★★ 5
Budget-Friendly Mouse
Color: Graphite
The Logitech M196 Bluetooth Wireless Mouse is a solid budget-friendly option that gets the job done. Setup was quick and easy, and the Bluetooth connection has been reliable. It's comfortable enough for everyday use, and the battery life is good. While it doesn't have premium features or an advanced design, it's a dependable mouse at an affordable price. If you're looking for a basic wireless mouse without spending a lot, this is a good choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
⚠️PLEASE READ⚠️
Color: White
This mouse is great but, if you were planning on hooking it up to an iPad or tablet or some kind it will work but, if you’re trying to play a game or something it’s not the best like if you’re trying to play Roblox I doesn’t work because Roblox doesn’t support keyboard and mouse on iOS. BENEFITS this mouse is lightweight, it’s very easy to hook up to devices, it’s very comfortable and smooth but, it’s a little small for me but besides that it’s GREAT. The mouse also looks clean and professional if you’re ever trying to brag😂. It’s also very compatible with all the devices I’ve tried I hope this review was helpful.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
★★★★★ 4
Great bluetooth mouse, easy connectivity and long battery life
Color: Graphite
I really do like this mouse, the price is great, the bluetooth connection is a great newer technology that I love, so nice not to have to worry about a dongle that can get lost, or can occupy a USB port you need for something else! This connects quickly and easily, does NOT take hardly any time to wake up (like some wireless mouse!), and is reliable. It's also fantastic this does not require charging and apparently the battery lasts like a year? So great. Only down side, the reason for 4 stars is the click is pretty loud. My old mouse had a lot of problems that were solved by this one but the click was very quiet so the sound of this one can be annoying.
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Reviewed in the United States on February 8, 2026
★★★★★ 5
Stopped Working
Color: White
Awesome little mouse that works great with my MacBook. I will say that the battery only lasted 6 months, not a year, but that's not a deal breaker for me. This is still a 5-star product. Smooth scrolling, comfortable in my hand, no glitchy-ness or functional issues at all. Thanks Logitech.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
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