MRCOOL DIY 5th Gen Mini Split - 5-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 12K + 9K + 6K + 6K Ceiling Cassette Air Handlers
Take control of your home’s comfort with the MRCOOL5th Gen DIYMulti-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, one 12K, one 9K and two 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 QuickConnectInstallation: 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 MRCOOLCare registration.
What our Experts Think
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Versatile Multi-Zone Cooling & Heating: Five zones with 18K + 12K + 9K + 6K + 6K BTU capacities provide precise temperature control in every room.
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Powerful 55,000 BTU System: Efficient heat pump technology ensures reliable year-round climate comfort.
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DIY-Friendly 5th Gen Design: Simplifies installation, reducing the need for professional help and lowering costs.
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Space-Saving Ceiling Cassette Units: Quiet, discreet air handlers that blend seamlessly into ceilings for minimal visual impact.
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Energy-Efficient Performance: High SEER ratings and inverter tech optimize energy use, saving on utility bills.
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 (18K + 12K + 9K + 6K + 6K BTU).
Q: Is this system DIY-friendly?
A: Yes, it’s designed for easy do-it-yourself installation with no professional needed.
Q: How many zones does it support?
A: It supports 5 zones, providing customized heating and cooling for multiple rooms.
Q: Does it offer both heating and cooling functions?
A: Yes, it operates as both an air conditioner and heat pump for year-round comfort.
Q: What advantages do ceiling cassette air handlers provide?
A: They deliver efficient, space-saving airflow ideal for rooms without wall space.
Q: Is the system energy efficient?
A: Yes, it features inverter technology to optimize energy use and reduce costs.
Maintenance Tips
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Clean air filters monthly to ensure efficient airflow.
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Keep the outdoor condenser clear of debris and dust.
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Regularly check and clear condensate drain lines.
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Have refrigerant levels inspected annually by a professional.
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Schedule yearly professional maintenance for system reliability.
