MRCOOL DIY 5th Gen Mini Split - 5-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 18K + 12K + 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 5-Zone system includes two 18K, one 12K 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 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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Custom 5-Zone Comfort: Includes 18K + 18K + 12K + 6K + 6K ceiling cassette handlers for versatile temperature control.
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Powerful 55,000 BTU Capacity: Ideal for cooling and heating larger homes efficiently.
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DIY 5th Gen Installation: Streamlined setup reduces time and cost without professional help.
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Quiet, Sleek Ceiling Cassette Design: Blends seamlessly with interiors while operating quietly.
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Wi-Fi & Smart Home Compatible: Convenient remote control and smart automation features.
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Efficient Heat Pump Technology: Provides reliable year-round heating and cooling with lower energy consumption.
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Durable Build & Warranty: Quality components backed by solid manufacturer support.
Q&A
Q: What is the MRCOOL DIY 5th Gen 5-Zone Mini Split system?
A: A 55,000 BTU ductless air conditioner and heat pump with ceiling cassette air handlers sized 18K, 18K, 12K, 6K, and 6K BTU for versatile multi-zone climate control.
Q: Can I install this system myself?
A: Yes, it’s designed for DIY installation with pre-charged linesets, requiring no licensed HVAC technician.
Q: How does it perform for heating and cooling?
A: It delivers efficient heating and cooling across five zones with inverter technology for year-round comfort.
Q: What are the benefits of ceiling cassette air handlers?
A: They offer discreet ceiling installation, quiet operation, and even air distribution.
Q: Is each zone independently controllable?
A: Yes, every zone has its own remote control for personalized settings.
Q: Is this system energy efficient?
A: Yes, it optimizes energy use by conditioning only occupied zones using advanced inverter technology.
Maintenance Tips
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Clean or replace air filters every 1-3 months.
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Keep outdoor condenser coils free of dirt and debris.
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Schedule annual professional maintenance for refrigerant and system checks.
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Regularly clean ceiling cassette air handlers to maintain optimal airflow.
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Ensure vents and airflow pathways are unobstructed.
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Watch for unusual noises or reduced cooling/heating efficiency.
