MRCOOL DIY 5th Gen Mini Split - 5-Zone 48,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 12K + 12K + 12K + 9K Wall Mount Air Handlers - DIY5-5Z-48HP-12K12K12K12K9K
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 55K BTU 5-Zone system includes one 18K, one 9K and three 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 22 and 10.6 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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Effortless Installation: Designed for DIY setup with Quick Connect™ fittings and pre-charged line sets, eliminating the need for special tools or professional assistance.
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Energy Efficient: 48,000 BTU system with a 22 SEER2 rating reduces electricity consumption while providing powerful heating and cooling.
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Customizable Climate Control: Five wall-mounted air handlers (12K + 12K + 12K + 12K + 9K) allow independent temperature control across multiple zones for maximum comfort.
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Smart Home Integration: Wi-Fi enabled for remote control via smartphone, compatible with modern smart home systems.
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Durable & Reliable: Backed by a 7-year compressor and 5-year parts warranty for long-term performance.
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User-Friendly Features: Includes auto-restart, sleep mode, and multiple fan speeds for personalized comfort.
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Professional Installation Option: DIY-friendly, but professional setup is available for those seeking expert installation.
Q&A
Q: What type of system is the MRCOOL DIY5-5Z-48HP?
A: It is a 5-zone, 5th Generation ductless mini split system with air conditioning and heat pump capabilities.
Q: What is the total cooling capacity?
A: The system provides a combined 48,000 BTU cooling capacity across all zones.
Q: What are the capacities of the individual air handlers?
A: Four wall-mounted units are 12,000 BTU each, and one is 9,000 BTU.
Q: Is installation DIY-friendly?
A: Yes, this system is designed for do-it-yourself installation with pre-charged lines.
Q: Does it provide heating as well as cooling?
A: Yes, the heat pump condenser allows efficient year-round heating and cooling.
Q: Can it control multiple rooms independently?
A: Yes, each zone has its own thermostat for customized temperature control.
Q: What makes the 5th Gen MRCOOL system special?
A: It offers high efficiency, wireless control, and energy-saving features without professional installation.
Maintenance Tips
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Clean or replace air filters monthly to maintain airflow and system efficiency.
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Wipe indoor air handler coils and vents with a soft, damp cloth to remove dust and debris.
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Check outdoor condenser coils for dirt, leaves, and debris; clean gently with a soft brush or hose.
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Ensure proper clearance around the outdoor unit for optimal airflow and performance.
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Inspect refrigerant lines and connections periodically for leaks or damage.
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Check drain lines and pans to prevent clogs and water buildup.
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Use the system regularly in heating and cooling modes to keep components lubricated and operational.
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Monitor system performance via the MRCOOL app for alerts and maintenance reminders.
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Schedule a professional inspection annually to check refrigerant levels and overall system health.
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Avoid blocking vents or air handlers indoors to ensure even distribution and efficient operation.
