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MRCOOL DIY® 5th Gen 55,000 BTU Multi-Zone Mini Split Condenser 230V
$3,809.00$4,837.43
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Description
Engineered for Whole-Home Multi-Zone Comfort and DIY Installation
The MRCOOL DIY® 5th Gen 55,000 BTU Multi-Zone Mini Split Condenser delivers robust, energy-efficient heating and cooling for large homes, offices, or multi-area spaces. Supporting up to six independent zones with a total connected capacity of up to 61,000 BTU, this outdoor unit gives you true zone-by-zone climate control from one powerful condenser.
Designed for straightforward do-it-yourself installation, the unit comes pre-charged with eco-friendly R-454B refrigerant and works with MRCOOL DIY® Quick Connect® pre-charged line sets, no vacuum pumps or specialized HVAC tools needed. A minimum of two indoor air handlers must be connected to operate, and you can mix and match compatible 5th Gen air handlers (6K, 9K, 12K, 18K, 24K, and 36K) to tailor comfort in every room.
Whether you’re conditioning a large living area, multiple bedrooms, bonus rooms, garages, or an open-plan floor, this condenser provides dependable performance with smart controls and efficiency that helps lower operating costs over time.
Important Notes and Recommended Coverage Area
- This listing includes the outdoor mini split condenser only. Indoor air handlers and line sets are sold separately.
- Designed to serve 2,800 – 3,200 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-Friendly Installation -Pre-charged Quick Connect® line sets make it fast and tool-free — no vacuuming or special tools required.
- Up to Six Zone Heating & Cooling - Supports combinations of MRCOOL 5th Gen air handlers (up to 61,000 BTU total) for personalized comfort in multiple spaces.
- Smart Climate Control Options - Compatible with SmartHVAC App, Amazon Alexa, and Google Assistant for remote and voice-activated comfort management.
- Eco-Friendly R-454B Refrigerant - Reduces environmental impact while maintaining efficient performance that meets modern regulatory standards.
- Gold Fin® Corrosion Protection - Anti-rust coating on the condenser enhances durability, especially in coastal or harsh environments.
- DIYPRO® Armored Cable - Weather-resistant communication wiring eliminates the need for outdoor conduit while increasing durability.
- Strong Warranty Coverage - Includes a 7-Year compressor warranty, 5-Year parts warranty, and optional Limited Lifetime Replacement with MRCOOL® Care Program registration.
Compatible Air Handler Combinations (Max. 61,000 BTU)
A minimum of two indoor units must be connected. Total combined indoor capacity must not exceed 61,000 BTU:
- 36K + 18K + 6K = 60K
- 24K + 18K + 12K = 54K
- 18K + 12K + 9K + 9K + 6K + 6K = 60K
- 12K + 12K + 12K + 12K + 6K + 6K = 60K
📌 Always verify total connected BTU capacity before purchasing.
Recommended Wire Size
- 6 AWG (Recommended): Supports 30A MCA and 40A max fuse
- 8 AWG (Smaller): May be acceptable for very short runs but could overheat or violate local codes
- 4 AWG (Larger): Ideal for long runs to improve voltage stability and safety margin
Specifications
- Model Number: DIY-MULTI6-55HP230D-O
- Cooling Capacity: 55,000 BTU/h
- Heating Capacity: 56,000 BTU/h
- Recommended Coverage Area: 2,000–2,600 sq. ft. (varies by layout & zone use)
- Total Connected Capacity: Up to 61,000 BTU
- SEER2 (Estimated): Up to 21.5 (configuration dependent)
- HSPF2-4 (Approx.): ~10.3
- HSPF2-5 (Approx.): ~8.2
- Power Supply: 208–230V, 60Hz, 1 Phase
- Minimum Circuit Ampacity: ~34 A
- Maximum Fuse: 40 A
- Refrigerant Type: R-454B (~160 oz charge)
- Line Set Sizes: 3/8" Liquid × 5/8" Gas
- Net Dimensions (W × D × H): Approx. 42.91" × 19.88" × 37.01"
- Net Weight: Approx. 185–195 lbs
Frequently Asked Questions
How many zones can this condenser support?
It supports up to six indoor air handlers, with at least two required to operate.
Does it require professional installation?
No. This condenser pairs with MRCOOL DIY® Quick Connect® line sets for DIY-friendly installation without vacuuming or special HVAC tools.
What size space is this condenser suited for?
It’s ideal for large applications ranging 2,000–2,600 sq. ft., depending on air handler configuration and building insulation.
What refrigerant does this condenser use?
It comes pre-charged with R-454B, a lower-GWP refrigerant aligned with current EPA standards.
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.
We truly care. We’re here before, during, and after your purchase. Good products and great service—that’s how we earn your trust. We see and celebrate EVERY sale that comes in!
We choose quality. If we wouldn’t use it ourselves, we won’t offer it. Our goal is to make you happy enough to tell your friends.
Thanks for supporting our family and being part of the Wild Oak Trail community!