MRCOOL DIY 5th Gen Mini Split - 5-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 12K + 12K + 12K + 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 18K, three 12K 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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Efficient Multi-Zone Cooling & Heating: Supports up to 5 zones with precise temperature control, ideal for whole-home comfort.
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High Capacity: 55,000 BTU system balances powerful cooling and heating performance with energy efficiency.
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Easy DIY Installation: 5th Gen design simplifies setup, saving time and professional installation costs.
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Quiet Ceiling Cassette Handlers: Discreet, low-noise operation enhances comfort without sacrificing style.
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Smart Climate Control: Compatible with Wi-Fi and smart home integration for convenient remote management.
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Reliable Heat Pump: Efficient heating performance extends usability beyond cooling seasons, cutting energy bills.
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Durability & Warranty: Built for long-term use with robust materials and strong manufacturer support.
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 five ceiling cassette air handlers (18K, 12K, 12K, 12K, 6K BTU) for customizable multi-room climate control.
Q: Is this system easy to install?
A: Yes, it features a DIY design with pre-charged linesets, enabling straightforward, professional-quality installation without a licensed HVAC technician.
Q: What heating and cooling capabilities does it offer?
A: It provides efficient cooling and heating across five zones, ideal for year-round comfort with energy-saving inverter technology.
Q: How does the ceiling cassette design benefit me?
A: Ceiling cassette air handlers offer discreet, space-saving installation with even air distribution and quiet operation.
Q: Can I control each zone independently?
A: Yes, each zone has its own remote control for personalized temperature settings.
Q: Is this system energy-efficient?
A: Yes, the inverter technology and multi-zone design reduce energy consumption by heating or cooling only occupied spaces.
Maintenance Tips
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Clean or replace air filters every 1-3 months.
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Keep outdoor condenser coils clear of debris and dust.
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Schedule annual professional inspections for refrigerant and performance checks.
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Clean ceiling cassette air handlers regularly to maintain airflow.
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Ensure proper airflow by keeping vents unobstructed.
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Monitor system for unusual noises or performance drops.
