MRCOOL DIY 5th Gen Mini Split - 4-Zone 36,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 12K + 12K + 6K Wall Mount Air Handlers - DIY5-4Z-36HP-12K12K12K6K
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 36K BTU 4-Zone system includes three 12K 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 23 and 9.9 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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Versatile 4-Zone System: 36,000 BTU with three 12K and one 6K wall-mounted handlers for precise temperature control in multiple rooms.
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DIY-Friendly Installation: Pre-charged Quick Connect lines simplify setup—no professional HVAC needed.
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Energy-Efficient Zoning: Independent controls help reduce energy consumption while maximizing comfort.
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Smart Home Integration: Compatible with MRCOOL app, Alexa, and Google Assistant for easy remote control and scheduling.
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Quiet & Reliable: Advanced inverter technology ensures low noise and consistent performance year-round.
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All-Season Comfort: Heat pump functionality delivers efficient heating and cooling, backed by a solid warranty.
Q&A
Q: What is the MRCOOL DIY 5th Gen 4-Zone Mini Split?
A: A 36,000 BTU ductless heat pump and air conditioner system with 12K + 12K + 12K + 6K wall-mounted air handlers for multi-zone climate control.
Q: Is it DIY-friendly?
A: Yes. Pre-charged Quick Connect lines allow easy installation without professional tools or HVAC experience.
Q: Does it provide both heating and cooling?
A: Yes. It offers efficient cooling in summer and reliable heating in winter for year-round comfort.
Q: How energy efficient is this system?
A: Equipped with inverter technology and high SEER2 ratings, it delivers quiet operation and energy savings.
Q: What smart features are included?
A: Built-in Wi-Fi enables control via the MRCOOL app, Alexa, or Google Assistant for convenient temperature and zone management.
Q: What’s included in the package?
A: One 36K BTU outdoor condenser, four indoor air handlers (12K + 12K + 12K + 6K), pre-charged line sets, communication cables, and installation accessories.
Q: Who is this product ideal for?
A: Perfect for homes or offices needing customizable temperature control across multiple rooms with energy efficiency.
Maintenance Tips
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Clean Filters Monthly: Wash indoor filters to maintain airflow and boost efficiency.
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Clear Outdoor Unit: Remove dirt and debris from the condenser for optimal heat transfer.
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Flush Drain Lines: Prevent blockages by regularly clearing condensate drains.
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Check Connections: Inspect refrigerant and electrical connections for tightness and corrosion.
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Seasonal Inspection: Test the system before peak cooling and heating seasons to ensure reliable operation.
