MRCOOL DIY 5th Gen Mini Split - 5-Zone 48,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 12K + 12K + 12K + 6K Wall Mount Air Handlers - DIY5-5Z-48HP-12K12K12K12K6K
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 two 18K, one 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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Balanced 5-Zone Comfort: Five wall-mounted air handlers (12K + 12K + 12K + 12K + 6K) provide consistent, customized heating and cooling across multiple rooms.
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48,000 BTU Capacity: Efficiently maintains comfort in larger homes or open layouts with reliable performance.
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Ductless Design: Eliminates the need for complex ductwork, simplifying installation and increasing flexibility.
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Heat Pump Technology: Offers both heating and cooling for year-round climate control.
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DIY-Friendly Installation: Homeowner-friendly setup with clear instructions minimizes the need for professional help.
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Energy-Efficient Inverter Operation: Adjusts power 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 operation 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 condenser with five equal 9K wall-mounted air handlers, offering customizable heating and cooling for multiple rooms.
Q: What are the key benefits?
A: Energy-efficient multi-zone climate control, DIY installation, WiFi smart control, and quiet, even airflow for consistent comfort across the home.
Q: How does the 5-zone system help?
A: Each zone can be controlled independently, providing precise temperatures and energy savings in every room.
Q: Who is this system ideal for?
A: Homeowners seeking flexible, ductless heating and cooling for mid-sized homes, multi-room layouts, or retrofit installations.
Q: What makes it stand out?
A: Equal-capacity air handlers, high BTU performance, DIY-friendly installation, and smart app control for complete comfort management.
Maintenance Tips
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Clean Filters Monthly: Wash or vacuum all wall unit filters to maintain airflow and system efficiency.
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Keep Outdoor Condenser Clear: Remove debris, dust, and leaves 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.
