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Description
MRCOOL DIY Mini Split - 30,000 BTU 3 Zone Ductless Air Conditioner and Heat Pump with 35 ft. Install Kit, DIYM327HPW01C49This 4th Generation MRCOOL Mini Split includes everything you need to cool and heat three different rooms. You'll be sent: DIY 27,000 BTU Multi Zone Condenser, two 9,000 BTU Wall Mounted Air Handler, 12,000 BTU Wall Mounted Air Handler, three Remotes, and three 35 ft. Installation Kits. The best part about all of this is that you can install it yourself! This System includes enhanced Wi Fi engineering to make setup not only quick and easy, but the
This 4th Generation MRCOOL Mini Split includes everything you need to cool and heat three different rooms. You'll be sent: DIY 27,000 BTU Multi-Zone Condenser, two 9,000 BTU Wall Mounted Air Handler, 12,000 BTU Wall Mounted Air Handler, three Remotes, and three 35 ft. Installation Kits. The best part about all of this is that you can install it yourself! This System includes enhanced Wi-Fi engineering to make setup not only quick and easy, but the MRCOOL DIY Multi is flexible enough to be installed virtually anywhere without requiring specialized tools or expensive equipment.
Package Includes
- MRCOOL DIY Multi-Zone 3-Zone Condenser, 4th Gen Series, DIY-MULTI3-27HP230C
- MRCOOL DIY 4th Generation 9K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, DIY-09-HP-WMAH-230C25 (x2)
- MRCOOL DIY 4th Generation 12K BTU Wall Mount Air Handler 230 Volt with Enhanced WiFi, DIY-12-HP-WMAH-230C25
- MRCOOL DIY 35ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, DIY35-1412C (x3)
If all air handlers are run simultaneously, their combined BTU output will not exceed the BTU rating of the condenser. In this case, the combined BTU output of the Air Handlers will never exceed the 27K BTU rating of the Condenser.
Condenser
- Energy Efficient. This 3 Zone condenser, when paired with select MRCOOL air handlers, is capable of producing an impressive 22 SEER efficiency rating.
- Works In All Environments. The ability to heat even when temperatures drop to -13°F.
- Lifetime Warranty. For added peace of mind, this is the only condenser on the market that comes with a limited lifetime compressor warranty. Simply register into the MRCOOL Care Program to get the lifetime warranty!
Air Handler, 9K BTU, Quantity 2
- Large Coverage Area. Handler covers an area up to 375 sq. ft.
- Versatile. Incredibly versatile and equipped with multiple operating modes, which include COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Easy to Control. This unit also has the capability to be controlled by your Apple or Android smartphone through the use of the Smart HVAC app.
- Convenient Installation. With its light and compact design, it can be installed easily to most interior walls with the included mounting plate.
Air Handler, 12K BTU, Quantity 1
- Large Coverage Area. Handler covers an area up to 500 sq. ft.
- Versatile. Incredibly versatile and equipped with multiple operating modes, which include COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP.
- Easy to Control. This unit also has the capability to be controlled by your Apple or Android smartphone through the use of the Smart HVAC app.
- Convenient Installation. With its light and compact design, it can be installed easily to most interior walls with the included mounting plate.
Line Set 35 ft., Quantity 3
- This 35 ft. copper line set connects the 4th Generation MRCOOL Condenser to the MR COOL Air Handlers - 9K, 12K and 18K.
- Pre-Charged. These line sets come pre-charged with the precise amount of R-410A refrigerant.
- DIY & Save Money. This means the installation process can be performed without retaining the services of a certified technician - thus saving you money!
Additional Line Sets & Coupler
If you find the default line set lengths are not sufficient for your application, additional line sets are available for purchase. You will also need a coupler kit, which will allow two standard line sets to be connected together.
What does this package include?
This package also includes installation friendly tools: Mounting plate (for the air handlers), Anchor, Mounting plate screws, Remote control, Fixing screw for remote controller holder (optional), Remote control holder (optional), MRCOOL Mini-Stat (optional), MRCOOL Mini-Stat User Manual (optional), Magnetic Ring (optional), Line-Set Adapter Set (Included with 4-zone & 5-zone systems only), Batteries, Air Freshening Filter, Seal (for cooling & heating models), Allen Wrench, Installation & Owner’s Manual, Remote Control Manual, Smart Controller Kit, Plastic Wall Sleeve, Sound Deadening Pads, Drain Pipe, Cardboard Mounting Plate Template, Quick Connect® Line Set (refrigerant pipe)*, Insulation Material, Non-Adhesive U.V. Tape, Drain joint, Neoprene.
PRODUCT SPECIFICATIONS:
Condenser Specifications
| Product Dimensions | 37.24'W x 16.14'D x 31.89'H |
| Cooling Capacity | 27,000 BTU |
| Heating Capacity | 27,000 BTU |
| Zone Capacity | 3 |
| Min Ambient Cool | 5F ~ 122F |
| Min Ambient Heat | -13F ~ 75.2F |
| SEER | 22 |
| EER | 12 |
| Voltage | Requires a minimum of 208V-230V/60HZ/26-40A (please check your home meets this electrical requirement prior to purchase) |
| Registered Warranty | 7 Years Replacement on Condenser, 5 Years Parts |
Air Handler 9K BTU
| Product Dimensions | 31.57'W x 7.44'D x 11.69'H |
| Mount Type | Wall |
| Cooling Capacity | 9,000 BTU |
| Heating Capacity |
9,000 BTU |
| Registered Warranty |
5 Years Parts |
| Modes | Auto - auto selects from Cool, Heat or Fan-Only Dry - dehumidify Cool Heat Fan Only Quiet Sleep |
Air Handler 12K BTU
| Product Dimensions | 31.57'W x 7.44'D x 11.69'H |
| Mount Type | Wall |
| Cooling Capacity | 12,000 BTU |
| Heating Capacity |
12,000 BTU |
| Registered Warranty |
5 Years Parts |
| Modes | Auto - auto selects from Cool, Heat or Fan-Only Dry - dehumidify Cool Heat Fan Only Quiet Sleep |
Line Set
| Length | 35 Feet |
| Liquid Line Size |
1/4' |
| Suction Line Size | 1/2' |
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 29 reviews
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Product Reviews
★★★★★ 5
Great
Size: 36inch, Color: Light Walnut, Size: 36inch, Color: Light Walnut
Got the job done very light weight but durable great condition installation was super easy
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Reviewed in the United States on April 29, 2026
★★★★★ 4
Not a bad buy
Size: 36inch, Color: Light Walnut, Size: 36inch, Color: Light Walnut
Very Light weight, they look great though. Fairly easy to put together. Came with all parts I’ll be it scattered and the screws don’t look sturdy but I won’t be using the ones that it came with. Overall, fair price, quality is fair as well.
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Reviewed in the United States on January 16, 2026
★★★★★ 5
Love these shelves!
Size: 48inch, Color: Light Walnut
These are incredible for the price! Feel & look like wood. Easy-ish to install - just take your time, measure twice & use a level. Very sturdy! Great hardware & instructions. Now my daughter wants some for her apt.
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Reviewed in the United States on February 22, 2025
★★★★★ 5
Perfect!
Size: 24inch, Color: Walnut, Size: 24inch, Color: Walnut
Perfect! Just what I wanted. Sturdy, came with all the pieces, and very pretty wood.
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Reviewed in the United States on November 20, 2025
★★★★★ 3
They worked for replacing shelves but I wouldn’t mount them on my wall
Size: 24inch, Color: Walnut
I specifically bought these shelves because of their dimensions. I have a built-in cabinet and when we moved in 6 or so years ago, the previous owners must have taken them with them when they moved. It’s been bothering me the whole time I’ve lived here and wanted to make some but just never found the time to get around to it. I measured them out and these floating shelves were perfect for the dimensions I needed to replace the missing shelves. Would I put these on my wall(s)? Absolutely not unless I corrected the mounting issues. One thing that really stuck out to me was how bad the design was for mounting these shelves. When I took them out of the packaging, the brackets were falling out of the back everywhere. This did not inspire too much confidence that if I hung them up, they would be stable. I’ve had a ton of floating shelves similar to this mounting design, but the arms that the boards slide into on the wall for this particular shelving are thin and flat (while being easily mailable with your hand alone) in comparison to every other one I’ve had being round, or at least decently thick, sometimes with additional screws that you can insert under the board and into the mounting arms for extra stability. Also, any time I’ve ever had to mount a similar floating shelf, it took some finesse and strength to release the mounting arms from the back of the shelf because they fit very snugly. The fact that the mounting brackets were falling out of the back means that they are not snug and prone to be very loose. Another thing that stuck out to me is that the shelves are hollow. Now, for my purposes, this is fine, but again, detracts significantly from the confidence that these would be stable if mounted on the wall and would most likely droop when weight was applied. I also took issue with the fact the boards had no protective covering and were jammed into a box, with the hardware pressing against one of the boards tightly. I just flipped the shelf over to mask the defect from packaging but the side I wanted to use because it had better coloring was the damaged side. Mine did not come with any mounting directions but some common sense would be all you needed to put up something so simple. However, it did not come with a template to mark the wall for spacing, which adds to the difficulty because you have to have precise DIY measurements to slide the boards onto the mounting arms correctly. To be honest, if I were to mount these, I would bypass the shoddy mounting provided and go with some heavy, durable brackets underneath. Overall, these shelves worked for my purposes but I can see how the reviews would be very mixed in terms of mounting and quality. I did get these on a limited time deal and they were priced at approximately $8 per shelf, which was a really good deal to get 4 shelves for that price in comparison to the “normal” price resulting in approximately $11/shelf. I wouldn’t have paid full price for these and would have been highly disappointed had I with the intention to mount them, especially since I would have needed to provide better and more stable mounting hardware. They are lesser quality than others within the same price range and I think you could do much better if your intention is to mount them.
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Reviewed in the United States on January 11, 2025