MRCOOL DIY 5th Gen Mini Split - 4-Zone 36,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 12K + 12K + 6K Wall Mount Air Handlers - DIY5-4Z-36HP-18K12K12K6K
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 one 18K, two 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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Powerful Zoned Comfort: 36,000 BTU system with 18K, two 12K, and 6K BTU handlers for tailored climate control across four rooms.
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Effortless DIY Installation: Pre-charged Quick Connect lines enable fast, tool-free setup without a professional.
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Energy-Efficient Zoning: Individual temperature control reduces energy waste while maximizing comfort.
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Smart Connectivity: Compatible with MRCOOL app, Alexa, and Google Assistant for easy remote control and scheduling.
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Quiet Operation: Advanced inverter technology ensures efficient, whisper-quiet performance.
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Year-Round Reliability: Heat pump design provides consistent heating and cooling with a solid.
Q&A
Q: What is the MRCOOL DIY 5th Gen 4-Zone Mini Split?
A: A 36,000 BTU ductless heat pump and AC system with 18K + 12K + 12K + 6K wall-mounted air handlers for efficient multi-zone climate control.
Q: Can I install it myself?
A: Yes. Pre-charged Quick Connect lines allow easy DIY installation without professional tools.
Q: Does it offer heating and cooling?
A: Yes. It provides reliable heating in winter and efficient cooling in summer.
Q: How energy efficient is this system?
A: It features inverter technology and high SEER2 ratings for quiet, energy-saving performance.
Q: What smart features are included?
A: Built-in Wi-Fi enables control via the MRCOOL app, Alexa, or Google Assistant for convenient zone management.
Q: What comes in the package?
A: One 36K BTU outdoor condenser, four indoor air handlers (18K + 12K + 12K + 6K), pre-charged line sets, communication cables, and mounting hardware.
Q: Who is this product best for?
A: Ideal for homes or offices requiring customizable temperature control across multiple rooms.
Maintenance Tips
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Clean Filters Monthly: Wash indoor filters to maintain airflow and efficiency.
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Clear Outdoor Unit: Remove dirt and debris to ensure proper heat exchange.
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Flush Drain Lines: Prevent clogs and leaks by regularly clearing condensate drains.
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Check Connections: Secure refrigerant and electrical fittings to avoid issues.
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Seasonal Inspection: Test system before peak heating and cooling seasons for reliable operation.
