MRCOOL DIY 5th Gen Mini Split - 5-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 12K + 12K + 12K + 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 one 18K, three 12K and one 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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Powerful 5-Zone System: 55,000 BTU condenser efficiently cools and heats multiple rooms.
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Versatile Air Handler Configuration: One 18K, three 12K, and one 9K ceiling cassette units for tailored comfort.
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Easy DIY Installation: Designed for straightforward setup, minimizing professional costs.
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Energy-Saving Heat Pump: Provides efficient year-round temperature control.
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Space-Smart Ceiling Cassettes: Low-profile units blend seamlessly into any room.
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Smart Home Compatible: Supports remote and smart thermostat controls for convenience.
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: One 18,000 BTU, three 12,000 BTU, and one 9,000 BTU ceiling cassette units.
Q: Is it easy to install?
A: Yes, designed for easy DIY installation—no professional needed.
Q: Does it provide both heating and cooling?
A: Yes, it offers efficient year-round heating and cooling.
Maintenance Tips
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Clean or replace air filters every 1-3 months to ensure airflow.
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Keep the outdoor condenser clear of debris and dust.
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Regularly clean ceiling cassette air handlers to prevent dust buildup.
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Inspect and clear condensate drain lines to avoid blockages.
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Schedule annual professional checks for refrigerant and system health.
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Follow manufacturer’s usage and maintenance guidelines closely.
