MRCOOL DIY 5th Gen Mini Split - 6-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 6K + 6K + 6K + 6K + 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 55K 6-Zone system includes one 18K and five 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 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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Balanced Multi-Zone Comfort: 55,000 BTU total with one 18K and five 6K ceiling cassette air handlers, perfect for varied room sizes.
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DIY Installation Ready: Easy-to-install design empowers homeowners to set up without pros.
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Energy-Efficient Inverter Technology: Quiet, cost-saving operation for year-round comfort.
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Low-Profile Ceiling Cassettes: Discreet units blend seamlessly into ceilings for clean aesthetics.
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Smart Control Compatibility: Wi-Fi enabled for remote management via smartphone.
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Individual Zone Temperature Control: Customize each room’s climate for maximum comfort and energy savings.
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Durable Construction: Built for long-term reliability with quality materials.
Q&A
Q: What size space does the MRCOOL DIY 6-Zone Mini Split system cover?
A: Perfect for multi-room homes or offices up to 3,000 sq. ft. with zoned climate control.
Q: What are the capacities of the included air handlers?
A: One 18,000 BTU and five 6,000 BTU ceiling cassette units for tailored comfort.
Q: Does this system provide both heating and cooling?
A: Yes, it functions as both a heat pump and air conditioner for year-round use.
Q: Is this system DIY-installation friendly?
A: Absolutely, designed for easy DIY setup without specialized tools or refrigerant handling.
Q: What energy-saving features does it include?
A: Features inverter technology for efficient operation and precise temperature management.
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
