MRCOOL DIY 5th Gen Mini Split - 5-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 9K + 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 55K 5-Zone system includes one 12K, three 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 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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Flexible 5-Zone Cooling & Heating: Includes 12K + 9K + 9K + 9K + 6K ceiling cassette handlers for tailored comfort.
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Strong 55,000 BTU Output: Efficiently cools and heats larger homes or multiple rooms.
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DIY-Friendly 5th Gen Design: Simplifies installation, saving time and professional costs.
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Quiet Ceiling Cassette Units: Low noise and sleek design fit seamlessly in any space.
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Smart Home Ready: Wi-Fi compatible for easy remote control and automation.
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Energy-Efficient Heat Pump: Year-round performance reduces utility bills.
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Durability & Support: Built with quality materials and backed by reliable warranties.
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 five ceiling cassette air handlers (12K, 9K, 9K, 9K, 6K BTU) for efficient multi-zone climate control.
Q: Is the system easy to install?
A: Yes, it’s designed for DIY installation with pre-charged linesets—no HVAC technician required.
Q: How effective is it for heating and cooling?
A: It provides reliable, energy-efficient heating and cooling across five zones using inverter technology.
Q: What advantages do ceiling cassette air handlers offer?
A: They allow discreet ceiling installation with quiet, even air distribution.
Q: Can zones be controlled independently?
A: Yes, each zone has its own remote control for customized temperature settings.
Q: Is this system energy efficient?
A: Yes, it reduces energy use by conditioning only occupied areas with advanced inverter tech.
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 dust and debris.
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Schedule annual professional inspections for refrigerant levels and system health.
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Regularly clean ceiling cassette air handlers to maintain airflow.
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Ensure vents and airflow paths remain unobstructed.
