MRCOOL DIY 5th Gen Mini Split - 5-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 18K + 12K + 9K + 9K 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 9K 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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Robust 5-Zone Cooling & Heating: 55,000 BTU condenser supports varied room sizes with efficient climate control.
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Optimized Air Handler Mix: Two 18K, one 12K, and two 9K ceiling cassette units deliver precise, balanced airflow.
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DIY-Friendly Installation: Streamlined design reduces installation time and professional service costs.
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Energy-Efficient Heat Pump: Reliable year-round comfort with lower energy consumption.
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Discreet Ceiling Cassette Design: Sleek, space-saving units blend seamlessly into ceilings.
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Smart Control Ready: Compatible with remote and smart thermostats for easy temperature management.
Q&A
Q: What is the MRCOOL DIY 5th Gen Mini Split?
A: A 5-zone, 55,000 BTU ductless air conditioner and heat pump system with ceiling cassette air handlers.
Q: What are the air handler capacities?
A: Two 18,000 BTU, one 12,000 BTU, and two 9,000 BTU ceiling cassette units.
Q: Is it DIY installable?
A: Yes, designed for easy do-it-yourself installation—no professional needed.
Q: Does it provide heating and cooling?
A: Yes, it offers efficient heating and cooling for year-round comfort.
Q: How many zones can it control?
A: Five independent zones for customized climate management.
Maintenance Tips
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Clean or replace air filters every 1-3 months to maintain airflow.
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Keep outdoor condenser unit free from leaves, dust, and debris.
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Regularly dust and clean ceiling cassette air handlers.
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Check and clear condensate drain lines to avoid water damage.
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Have a professional inspect refrigerant levels and system annually.
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Follow all manufacturer care guidelines for optimal performance.
