MRCOOL DIY 5th Gen Mini Split - 5-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 12K + 12K + 9K + 9K Ceiling Cassette Air Handlers
Take control of your home’s comfort with the MRCOOL® 5th Gen DIY® Multi-Zone Mini Split System — the ultimate solution for efficient, customizable, and true DIY-friendly heating and cooling.
This powerful 55K 5-Zone system includes one 18K, two 12K and two 9K ceiling cassette air handlers.
Features
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Customize mini-split system: choose the perfect line set length for each zone just above the “Add to Cart” button.
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Ultra-Efficient Cooling & Heating: Enjoy up to 22 SEER2 and 10.6 HSPF2-4 for energy-efficient year-round comfort.
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Low-Profile Ceiling Cassette Design: Flush-mounted unit fits between standard ceiling joists for a clean, built-in look.
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DIY-Friendly QuickConnect® Installation: No vacuuming or professional tools needed — pre-charged line sets make setup fast and simple.
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Smart Voice & App Control: Full control via SmartHVAC app, Alexa, Google Assistant, or included wireless remote.
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Eco-Conscious Refrigerant: Uses R-454B refrigerant with a low environmental impact.
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Industry-Leading Warranty: Includes 5-year parts, 7-year compressor, and lifetime replacement with MRCOOL® Care registration.
What our Experts Think
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Powerful 5-Zone Configuration: 55,000 BTU total with an 18K, two 12K, and two 9K ceiling cassette units for customized climate control.
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Efficient Year-Round Comfort: Heat pump technology provides reliable heating and cooling in every season.
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DIY-Friendly Installation: Designed for straightforward, cost-saving self-installation.
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Quiet & Discreet Design: Ceiling cassettes operate silently and integrate seamlessly into any room.
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Energy-Saving Inverter Technology: Optimizes efficiency to lower energy bills without sacrificing comfort.
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MRCOOL 5th Gen Durability: Built for long-lasting performance with advanced features and smart controls.
Q&A
Q: What is the MRCOOL DIY 5th Gen Mini Split system?
A: A 5-zone, 55,000 BTU ductless air conditioner and heat pump with ceiling cassette air handlers for tailored climate control.
Q: What air handler sizes are included?
A: One 18K BTU, two 12K BTU, and two 9K BTU ceiling cassette air handlers.
Q: Is installation DIY-friendly?
A: Yes, designed for easy, professional-free installation.
Q: Does it provide both heating and cooling?
A: Yes, it offers year-round comfort with air conditioning and heat pump functions.
Q: What spaces is this system best for?
A: Ideal for multi-room homes or offices needing efficient zoned temperature control.
Q: How energy efficient is it?
A: It uses inverter technology and zoning to maximize energy savings and reduce costs.
Maintenance Tips
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Clean or replace air filters every 1-3 months.
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Keep the outdoor condenser free from dirt and debris.
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Inspect and clean ceiling cassette air handlers quarterly.
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Regularly check for refrigerant leaks and unusual noises.
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Schedule annual professional maintenance for optimal performance.
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Maintain clear airflow around indoor and outdoor units.
