MRCOOL DIY 5th Gen Mini Split - 5-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 9K + 9K + 9K + 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, 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 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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Powerful Multi-Zone Cooling & Heating: Efficiently manages up to 5 zones with a total of 55,000 BTU, perfect for large homes or offices.
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DIY-Friendly Installation: Designed for easy, professional-level installation without costly contractors, saving time and money.
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Energy Efficient: Advanced inverter technology reduces energy consumption while maintaining consistent comfort.
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Quiet Operation: Ceiling cassette air handlers ensure discreet, noise-free airflow in every zone.
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Smart Control: Compatible with smart thermostats and apps for convenient, remote temperature management.
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Reliable Brand: MRCOOL is trusted for quality HVAC solutions with solid warranty support and customer service.
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 for efficient multi-zone heating and cooling.
Q: What are the zone sizes?
A: Zones include 18K, 9K, 9K, 9K, and 6K BTU ceiling cassette air handlers for tailored climate control.
Q: Is this system DIY-friendly?
A: Yes, designed for easy installation without specialized HVAC tools.
Q: Does it provide both heating and cooling?
A: Yes, it’s a heat pump system that offers year-round heating and cooling.
Q: How does it save energy?
A: Zoned operation and high SEER ratings optimize energy efficiency and lower utility bills.
Q: What spaces are best suited for this system?
A: Ideal for multi-room homes, offices, or spaces needing flexible, zone-specific comfort.
Q: Are ceiling cassette units included?
A: Yes, five ceiling cassette air handlers are included for discreet, space-saving installation.
Maintenance Tips
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Clean or replace air filters every 1-3 months.
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Keep the outdoor condenser clear of dirt and debris.
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Schedule annual professional inspections for refrigerant and system performance.
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Regularly clear condensate drain lines to prevent clogs.
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Maintain unobstructed airflow around ceiling cassette air handlers.
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Avoid covering or blocking air handlers.
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Use the system regularly to ensure optimal efficiency.
