MRCOOL DIY 5th Gen Mini Split - 5-Zone 48,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 12K + 12K + 9K + 6K Wall Mount Air Handlers - DIY5-5Z-48HP-18K12K12K9K6K
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 5-Zone system includes one 18K, two 12K, 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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Custom 5-Zone Comfort: Five wall-mounted air handlers (18K + 12K + 12K + 9K + 6K) provide precise heating and cooling across multiple rooms.
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48,000 BTU Capacity: Efficiently manages large homes or open layouts with consistent performance.
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Ductless Design: Simplifies installation and maximizes flexibility without requiring ductwork.
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Heat Pump Technology: Offers both heating and cooling for year-round climate control.
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DIY-Friendly Setup: Homeowner-oriented installation with clear instructions reduces the need for professional assistance.
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Energy-Efficient Operation: Inverter technology adjusts output per zone to save energy while maintaining optimal comfort.
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Smart Connectivity: WiFi-compatible and controllable via the MRCOOL app for remote monitoring and scheduling.
Q&A
Q: What is the MRCOOL DIY 5th Gen 5-Zone Mini Split?
A: A 48,000 BTU ductless air conditioner and heat pump system with five wall-mounted air handlers for efficient multi-zone cooling and heating.
Q: What are the air handler capacities?
A: One 18K BTU, two 12K BTU, one 9K BTU, and one 6K BTU units, providing flexible climate control across five zones.
Q: Can I install it myself?
A: Yes, it’s DIY-ready with pre-charged line sets—no professional HVAC installation required.
Q: Where is it ideal to use?
A: Perfect for homes, offices, or multi-zone spaces needing both heating and cooling with customizable comfort.
Q: Why choose the DIY5-5Z-48HP-18K12K12K9K6K model?
A: Energy-efficient, easy to install, and delivers precise temperature control for each zone, maximizing comfort and cost savings.
Maintenance Tips
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Clean Filters Monthly: Wash or vacuum all wall unit filters to maintain airflow and efficiency.
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Keep Outdoor Condenser Clear: Remove dust, leaves, and debris to ensure optimal heat exchange.
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Inspect Refrigerant Lines: Check for leaks or damage to maintain consistent performance.
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Ensure Proper Airflow: Keep vents and surrounding areas unobstructed for balanced cooling and heating across all zones.
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Maintain Drain Lines: Clear condensate lines regularly to prevent clogs and water damage.
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Seasonal Professional Check: Schedule annual inspections for coils, electrical connections, and refrigerant levels.
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Use MRCOOL App: Monitor performance, set schedules, and receive maintenance alerts for all units.
