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Description
MRCOOL DIY® 5th Gen 27,000 BTU Multi-Zone Mini Split Condenser 230V, DIY-MULTI4-27HP230D-OMRCOOL DIY 5th Gen 27,000 BTU 4 Zone Multi Zone Mini Split Condenser 230V Model: DIY MULTI4 27HP230D O Experience flexible zone control and energy efficient performance with the MRCOOL DIY 5th Gen 27,000 BTU Multi Zone Mini Split Condenser. Designed for fast DIY installation, this 230V outdoor unit supports up to four zones and connects with multiple air handler combinations for personalized comfort throughout your home or workspace. Requires at least
MRCOOL® DIY 5th Gen 27,000 BTU 4-Zone Multi-Zone Mini Split Condenser – 230V
Model: DIY-MULTI4-27HP230D-O
Experience flexible zone control and energy-efficient performance with the MRCOOL® DIY 5th Gen 27,000 BTU Multi-Zone Mini Split Condenser. Designed for fast DIY installation, this 230V outdoor unit supports up to four zones and connects with multiple air handler combinations for personalized comfort throughout your home or workspace. Requires at least 2 air handlers to operate and supports up to 33,000 BTU total indoor capacity.
Key Features
- DIY Installation: Tool-free setup with pre-charged Quick Connect® line sets – no vacuum or special tools required
- Smart Control: Compatible with Smart HVAC App, Amazon Alexa & Google Assistant for voice-activated comfort
- Eco-Friendly Refrigerant: Pre-charged with R-454B, a low-GWP refrigerant that reduces environmental impact
- Gold Fin® Condenser: Anti-corrosive finish protects against coastal conditions and extends lifespan
- DIYPRO® Cable: Armored communication wire eliminates the need for electrical conduit outdoors
- Trusted Warranty: 7-Year compressor warranty, 5-Year parts warranty, and optional Lifetime Replacement with MRCOOL® Care registration
System Specs
- Cooling Capacity: 27,000 BTU/h
- Heating Capacity: 28,400 BTU/h
- SEER2: Approx. 21.2 (varies by air handler configuration)
- HSPF2-4: ~10.3 | HSPF2-5: ~8.2
- Power Supply: 208–230V, 60Hz, 1 Phase
- Minimum Circuit Ampacity: 24 A
- Maximum Fuse: 25 A
- Refrigerant Type: R-454B (Charge: ~67.37 oz)
- Line Set Sizes: 3/8" Liquid x 5/8" Gas
- Recommended Coverage: 1,100 – 1,400 sq. ft. (based on configuration and insulation)
Compatible Air Handler Combinations (Max 33,000 BTU)
This condenser supports 6K, 9K, 12K, and 18K MRCOOL 5th Gen air handlers. A minimum of 2 air handlers must be connected, and total combined capacity should be between 70% and 122% of the rated output (18,900 – 33,000 BTU).
Examples of valid combinations include:
- 12K + 12K + 6K = 30K
- 9K + 9K + 9K = 27K
- 18K + 12K = 30K
- 6K + 6K + 12K = 24K
- 9K + 12K + 6K = 27K
Recommended Wire Size
- Recommended: 10 AWG copper wire – supports 24A MCA and 25A max fuse
- One Size Smaller (12 AWG): Not recommended – may overheat under load and violate NEC code
- One Size Larger (8 AWG): Ideal for long wire runs or added safety margin to reduce voltage drop
Note: Always verify total indoor air handler capacity before ordering. MRCOOL DIY condensers are pre-charged with R-454B and are not interchangeable with R-410A systems. Specifications may vary by production batch.
Buy confidently from MRCOOL DIY Direct – America’s most trusted source for DIY HVAC systems.
Specifications & Dimensions
| Specification | Details |
|---|---|
| Model Number | DIY-MULTI4-27HP230D-O |
| Cooling Capacity | 27,000 BTU/h |
| Heating Capacity | 28,400 BTU/h |
| Recommended Coverage Area | 1,100 – 1,400 sq. ft. |
| SEER2 | Approx. 21.2 |
| HSPF2-4 | 10.3 |
| HSPF2-5 | 8.2 |
| Power Supply | 208–230V, 60Hz, 1 Phase |
| Minimum Circuit Ampacity | 24 A |
| Maximum Fuse | 25 A |
| Refrigerant Type | R-454B |
| Refrigerant Charge | ~67.37 oz |
| Line Set Sizes | 3/8" Liquid x 5/8" Gas |
| Net Dimensions (WxDxH) | 37.24" x 16.14" x 31.89" |
| Net Weight | 122.80 lbs |
| Recommended Wire Size | 10 AWG (recommended for 24A load) |
| One Size Smaller (Risk) | 12 AWG – May overheat or fail to meet code under full load |
| One Size Larger (Benefit) | 8 AWG – Increased safety margin and reduced voltage drop |
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
4.5 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Skye's Absolute Favorite Ball! 🐾
Size: 1 Pack, Style: Ball
Hello, I am Skye! I am an Australian Mountain Doodle puppy, and my humans finally found a ball that can keep up with me! The Benebone Natural Rubber Dog Ball is officially my prized possession.
Why I give it five paws:
The Perfect Chew: It is made of natural rubber, which means it has this amazing, springy texture that feels so good on my teeth. It's super tough, but it still has a satisfying squish when I chomp down on it.
Funky Bounces: Because of the rubber and the design, it doesn't just roll in a boring straight line. When it hits the floor, it bounces all over the place in crazy directions, which makes chasing it so exciting.
Easy to Carry: The texture makes it really easy for me to grab with my paws and hold onto in my mouth, even when it gets a little slobbery during a long game of fetch.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
So far this is the perfect alternative to other wobble toy feeders. Please make a bigger size!
Size: 1 Pack, Style: Pawbler
Why did you pick this product vs others?:
I bought the Pawbler because the two most popular wobble treat feeders on the market are plastic, and one of my dogs just absolutely destroys those in no time because he bites them and throws them rather then nudging them and then he has plastic cutting him so I am forced to throw away a costly treat toy/dispenser. I thought maybe a rubber one would work out better. So far my dogs love it, it works well spitting out their kibble, seems to be holding up and is easy to clean and feels like a good weight, not a super flimsy toy.
I would love to see it made in a slightly larger size, I think this current size is good for medium dogs. It holds just under a cup of small round kibble but I would like to see one that can hold more and is slightly larger in size.
I have 4 german shorthaired pointers, my test subject for this toy is mostly my 70 pounder who bites the toys instead of nudging them and throws them across the room, so it is taking a beating. I think for him a larger size would be helpful in deterring that behavior but I also think this may be too small for larger breeds.
Durability:
So far this toy looks just like when I bought it. It has no punctures or scratches and unscrews without problem. We have only had it a week or so but we use puzzle/toy feeders to feed our dogs lunch every day so it is pretty easy to tell which toys won't last long. Obviously, I can't speak to long-term durability at the moment, but I can say that most toys similar to this end up already scratched or punctured in a few days, so this is already sturdier when compared to what I have tried before.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 26, 2025
★★★★★ 4
Well made and durable, not a toy the pups seek out
Size: 1 Pack, Style: Tug
Well made. Thought our staffies would love since they live tugging with each other. Sadly not something they seek out. We love ALL the benebone chews though!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
★★★★★ 5
Durable fun enrichment toy
Size: 1 Pack, Style: Pawbler
I had been wanting to buy one of these kinds of toys for some time but thought that the other brands I had seen were too pricey so this was a great compromise for the price. My 5 yr old Portuguese water dog loves it. He spent 25 min playing with it the first day. The trick is to find a treat that is just big enough where it doesn’t fall out right away so it makes it challenging and fun for them. He has been chewing on it a lot for a week and it has not broken or shown signs of damage. One thing to note is that there is a small hole on the bottom of the toy so you cannot freeze liquids in it without covering the hole in some way so that would be my only complaint. Besides that it’s a great toy that keeps him busy and happy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2025
★★★★★ 3
Dog doesn’t care for it
Size: 1 Pack, Style: Bone
Hard to review product for its durability because my dog has never chewed it once. Doesn’t care about it at all. The bone feels rugged but smells like playdoh. It’s sat on the floor for over a month untouched.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
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