MRCOOL DIY 5th Gen Mini Split - 5-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 12K + 12K + 6K + 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 three 12K and two 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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Powerful 5-zone cooling & heating: 55,000 BTU capacity with tailored air handlers for balanced comfort.
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Air handler setup: Three 12K and two 6K ceiling cassette units provide efficient, even airflow.
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DIY installation made easy: Pre-charged line sets simplify setup, reducing time and cost.
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Advanced heat pump: Efficient year-round heating and cooling performance.
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Quiet and space-saving: Ceiling cassettes operate quietly and blend seamlessly into ceilings.
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Reliable support: MRCOOL’s warranty ensures lasting peace of mind.
Q&A
Q: What is the MRCOOL DIY 5th Gen Mini Split?
A: A 5-zone, 55,000 BTU ductless AC and heat pump with ceiling cassette air handlers (12K + 12K + 12K + 6K + 6K BTU).
Q: How many zones does it support?
A: Five zones with varied capacities for tailored comfort.
Q: Can I install it myself?
A: Yes, it’s designed for easy DIY installation—no professional required.
Q: What are the key benefits?
A: Efficient heating/cooling, quiet operation, and precise zone control.
Q: What spaces is it ideal for?
A: Multi-room homes needing discreet, ceiling-mounted climate control.
Maintenance Tips
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Clean or replace air filters every 1-2 months for efficient airflow.
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Keep outdoor condenser free from dirt, leaves, and debris.
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Maintain at least 2 feet clearance around the outdoor unit.
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Wipe indoor ceiling cassette air handlers regularly to prevent dust buildup.
Damage 
Loss 
Theft 
