MRCOOL DIY 5th Gen Mini Split - 6-Zone 48,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 12K + 12K + 9K + 9K + 6K 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 48K 6-Zone system includes three 12K, two 9K and one 6K 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 21.8 SEER2 and 10 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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Efficient Multi-Zone Cooling & Heating: 48,000 BTU total with six ceiling cassette air handlers (three 12K, two 9K, one 6K) for balanced climate control.
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DIY Installation Friendly: Easy setup designed for homeowners—no professional needed.
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Energy-Saving Inverter Technology: Quiet and efficient operation reduces energy costs.
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Sleek Ceiling Cassettes: Low-profile units fit seamlessly into ceilings for discreet comfort.
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Smart Control Ready: Wi-Fi compatible for remote monitoring and adjustments.
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Individual Zone Control: Customize temperatures room-by-room for maximum comfort and savings.
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Durable Build: Quality materials ensure long-lasting reliability.
Q&A
Q: What size space does the MRCOOL DIY 6-Zone Mini Split system cover?
A: Designed for multi-room areas up to 2,500 sq. ft. with zoned heating and cooling.
Q: What are the capacities of the included air handlers?
A: Three 12,000 BTU, two 9,000 BTU, and one 6,000 BTU ceiling cassette units for customizable comfort.
Q: Does this system provide both heating and cooling?
A: Yes, it operates as a heat pump and air conditioner for year-round climate control.
Q: Is this system DIY-friendly?
A: Yes, built for easy DIY installation without professional tools or refrigerant handling.
Q: What energy-saving features does it include?
A: Features inverter technology for efficient performance and precise temperature control.
Maintenance Tips
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Clean or replace air filters in each indoor unit every 30–60 days
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Inspect and clear condensate drain lines monthly to prevent clogs
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Clean indoor coils and fan blades annually for optimal airflow
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Keep outdoor condenser unit free of debris with at least 2–3 feet clearance
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Schedule annual professional maintenance to check refrigerant levels and system performance
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Ensure ceiling cassette vents stay unobstructed for balanced airflow
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Regularly inspect electrical components for safety and efficiency
