MRCOOL DIY 5th Gen Mini Split - 4-Zone 48,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 12K + 6K + 6K Wall Mount Air Handlers - DIY5-4Z-48HP-12K12K6K6K
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 48K BTU 4-Zone system includes one 24K, one 18K, one 9K and one 6K wall mounted 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 21.8 and 10 HSPF2-4 for energy-efficient year-round comfort.
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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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Balanced 4-Zone Climate: 48,000 BTU system with two 12K and two 6K wall-mounted handlers for versatile temperature control in multiple rooms.
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Simple DIY Setup: Pre-charged Quick Connect lines allow easy, tool-free installation—no professional needed.
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Energy-Saving Zoning: Independent control for each zone improves comfort while reducing energy use.
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Smart Home Compatible: Works with MRCOOL app, Alexa, and Google Assistant for convenient remote management.
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Quiet & Efficient: Advanced inverter tech ensures low noise and high SEER efficiency.
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Reliable Heating & Cooling: Heat pump functionality delivers consistent comfort all year, supported by MRCOOL’s warranty.
Q&A
Q: What is the MRCOOL DIY 5th Gen 4-Zone Mini Split?
A: A 48,000 BTU ductless heat pump and air conditioner system with 12K + 12K + 6K + 6K wall-mounted air handlers for multi-zone comfort.
Q: Is installation DIY-friendly?
A: Yes. Pre-charged Quick Connect lines let homeowners install it easily without special tools or professional help.
Q: Does it provide heating and cooling?
A: Yes. It efficiently cools in summer and heats in winter for year-round comfort.
Q: How energy efficient is it?
A: Equipped with inverter technology and high SEER2 ratings, it ensures quiet operation and energy savings.
Q: What smart controls are available?
A: Built-in Wi-Fi enables control via the MRCOOL app, Alexa, or Google Assistant for easy zone management.
Q: What’s included?
A: One 48K BTU outdoor condenser, four indoor air handlers (12K + 12K + 6K + 6K), pre-charged line sets, communication cables, and installation hardware.
Q: Who is this system designed for?
A: Perfect for homes or offices needing customizable, energy-efficient temperature control across four zones.
Maintenance Tips
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Clean Filters Monthly: Wash or replace indoor filters to ensure optimal airflow and efficiency.
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Keep Condenser Clear: Remove debris and dirt from the outdoor unit to maintain proper heat exchange.
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Flush Drain Lines: Regularly clear condensate drains to prevent blockages and leaks.
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Inspect Connections: Check refrigerant and electrical connections for tightness and corrosion.
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Seasonal Check: Test the system before peak seasons to catch any performance issues early.
