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DIY-MULTI4-27HP230D-O
MRCOOL DIY® 5th Gen 27,000 BTU Multi-Zone Mini Split Condenser 230V
$2,100.00$2,667.00
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- ⚡ Energy Star® Efficient Heating & Cooling
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- Description
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Description
Flexible Multi-Zone Comfort for Your Home - MRCOOL DIY® 5th Gen 27,000 BTU Multi-Zone Mini Split Condenser
The MRCOOL DIY® 5th Gen 18,000 BTU Multi-Zone Mini Split Condenser is built to deliver efficient heating and cooling across multiple rooms from a single outdoor unit. Designed for up to three indoor air handlers, this mini split condenser allows you to control different zones independently, ideal for small homes, apartments, offices, workshops, or additions.
Engineered for DIY installation, this condenser pairs with pre-charged DIY® Quick Connect® line sets, eliminating the need for vacuum pumps, refrigerant handling, or HVAC certification. With ENERGY STAR® efficiency, inverter-driven performance, and smart control compatibility, it provides reliable comfort with lower energy usage.
Important Notes and Recommended Coverage Area
- This listing includes the outdoor mini split condenser only.
- At least two air handlers are required to operate. Supports up to 33,000 BTU total indoor capacity.
- Designed to serve 1,100 – 1,400 sq. ft., depending on insulation quality, ceiling height, and climate zone.
Whole-Home Comfort with a Flexible Ducted Mini Split Solution
Designed to work seamlessly with MRCOOL DIY® condensers, this hybrid ducted air handler delivers efficient heating and cooling throughout your main living space while allowing additional zones to be served separately. Pair it with a wall-mounted air handler or an OuttaSight® Ceiling Cassette to independently condition a garage, office, or bonus room, giving you more control, better efficiency, and a cleaner installation without sacrificing comfort anywhere in your home.
Key Features & Benefits
DIY Installation – No HVAC Technician Required
- Tool-free, vacuum-free setup using pre-charged Quick Connect® line sets.
- Ideal for homeowners who want fast, hassle-free installation.
Flexible Multi-Zone Comfort
- Supports up to four indoor air handlers for customizable heating and cooling.
- Compatible with 6K, 9K, 12K, and 18K MRCOOL 5th Gen air handlers.
- Total system output can range from 18,900 – 33,000 BTU, depending on configuration.
Energy-Efficient & Eco-Friendly
- Uses R-454B refrigerant with low GWP for environmentally responsible operation.
- Approx. SEER2 of 21.2, reducing electricity costs while maximizing comfort.
Smart Climate Control
- Control each zone via the SmartHVAC app (iOS & Android), Amazon Alexa, or Google Assistant.
- Precise temperature control for each zone without complicated wiring.
Durable Outdoor Design
- Gold Fin® condenser coating resists corrosion and extends life, especially in coastal areas.
- DIYPRO® armored cable eliminates the need for outdoor conduit and protects wiring.
Trusted Warranty & Certified Quality
- 7-Year compressor warranty, 5-Year parts warranty, and optional Lifetime Replacement with MRCOOL Care registration.
- Intertek listed 5031495 for safety, performance, and reliability.
Compatible Air Handler Combinations
This mini split condenser supports up to three zones with flexible configurations, including:
- 12K + 12K + 6K = 30K
- 9K + 9K + 9K = 27K
- 18K + 12K = 30K
- 6K + 6K + 12K = 24K
- 9K + 12K + 6K = 27K
📌 Always verify total connected BTU capacity before purchasing.
Recommended Wire Size
- 10 AWG: Ideal for 24A MCA and 25A max fuse – standard recommendation.
- 12 AWG (Smaller): Not recommended; may overheat or violate NEC code.
- 8 AWG (Larger): Provides extra safety and reduces voltage drop for long runs.
Specifications
- 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: ~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 (~67.37 oz)
- Line Set Sizes: 3/8" Liquid x 5/8" Gas
- Net Dimensions (W x D x H): 37.24" x 16.14" x 31.89"
- Net Weight: 122.80 lbs
Frequently Asked Questions
How many zones can this condenser support?
Up to 4 indoor air handlers, with a minimum of 2 required for operation.
What refrigerant does this unit use?
Pre-charged with R-454B, a low-GWP, environmentally friendly refrigerant.
Can I control each zone individually?
Yes, each zone can be controlled via the SmartHVAC app, Amazon Alexa, or Google Assistant.
What is the recommended wire size for installation?
10 AWG copper wire is recommended. 12 AWG is too small, and 8 AWG can be used for longer runs or extra safety.
Best Price Guarantee!
Best Price Guarantee
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Why Buy From Us
Why Buy From Wild Oak Trail?
We’re a family-run business. My Wife Hailey and I run this business with our small staff of 3 awesome people. When you shop with Wild Oak Trail, you're supporting real people, not a big corporation.
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