MRCOOL DIY 5th Gen Mini Split - 5-Zone 48,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 12K + 12K + 12K + 12K Wall Mount Air Handlers - DIY5-5Z-48HP-12K12K12K12K12K

MRCOOL DIY 5th Gen Mini Split - 5-Zone 48,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 12K + 12K + 12K + 12K Wall Mount Air Handlers - DIY5-5Z-48HP-12K12K12K12K12K

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

• Customize mini-split system: choose the perfect line set length for each zone just above the “Add to Cart” button.
• Ultra-Efficient Cooling & Heating: Enjoy up to 22 and 10.6 HSPF2-4 for energy-efficient year-round comfort.
• DIY-Friendly QuickConnect® Installation: No vacuuming or professional tools needed — pre-charged line sets make setup fast and simple.
• Smart Voice & App Control: Full control via SmartHVAC app, Alexa, Google Assistant, or included wireless remote.
• Eco-Conscious Refrigerant: Uses R-454B refrigerant with a low environmental impact.
• Industry-Leading Warranty: Includes 5-year parts, 7-year compressor, and lifetime replacement with MRCOOL® Care registration.

What our Experts Think

• Effortless Installation: Designed for DIY installation, the MRCOOL DIY 5th Gen Mini Split features patented Quick Connect™ fittings and pre-charged line sets, eliminating the need for special tools or professional assistance.

• Energy Efficient: With a 22 SEER2 rating, this system offers high energy efficiency, potentially reducing electricity bills compared to traditional HVAC systems.

• Versatile Climate Control: The 48,000 BTU capacity, combined with five wall-mounted air handlers (12K + 12K + 12K + 12K + 12K), provides customizable heating and cooling for multiple zones, enhancing comfort throughout your space.

• Smart Home Integration: Equipped with Wi-Fi capabilities, the system allows remote control via smartphone, integrating seamlessly with smart home setups for added convenience.

• Durable and Reliable: Backed by a 7-year compressor and 5-year parts warranty, MRCOOL ensures long-term reliability and customer satisfaction.

• User-Friendly Features: The system includes features like auto-restart, sleep mode, and multiple fan speeds, allowing for personalized comfort settings.

• Professional Installation Option: While designed for DIY installation, professional installation is available for those who prefer expert setup.

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 functionality.

Q: What is the total cooling capacity?
A: The system delivers a combined 48,000 BTU across all five zones.

Q: What are the capacities of the individual air handlers?
A: Each of the five wall-mounted units provides 12,000 BTU.

Q: Is this system DIY-friendly?
A: Yes, it comes with pre-charged lines for easy do-it-yourself installation.

Q: Can each zone be controlled independently?
A: Yes, each air handler has its own thermostat for customized temperature control.

Q: Does it provide heating as well as cooling?
A: Yes, the heat pump condenser ensures efficient year-round heating and cooling.

Q: What are the key benefits of this 5th Gen system?
A: High efficiency, energy savings, wireless control, and simple DIY installation without professional setup.

Maintenance Tips

• Clean or replace air filters monthly to maintain airflow and efficiency for all five zones.

• Wipe indoor air handler coils and vents with a soft, damp cloth to remove dust and debris.

• Check outdoor condenser coils regularly for dirt, leaves, and debris; clean gently with a soft brush or hose.

• Ensure proper clearance around the outdoor unit for optimal airflow and performance.

• Inspect refrigerant lines and connections periodically for leaks or damage.

• Check drain lines and pans to prevent clogs and water buildup.

• Operate all zones regularly in both heating and cooling modes to keep components lubricated and functional.

• Monitor system performance via the MRCOOL app for alerts, maintenance reminders, and efficiency optimization.

• Schedule a professional inspection annually to check refrigerant levels, electrical connections, and overall system health.

• Avoid blocking vents or air handlers in any zone to ensure even air distribution and efficient operation.