MRCOOL DIY 5th Gen Mini Split - 5-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 18K + 18K + 9K + 6K Ceiling Cassette Air Handlers

MRCOOL DIY 5th Gen Mini Split - 5-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 18K + 18K + 9K + 6K Ceiling Cassette Air Handlers

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 5-Zone system includes three 18K, one 9K and one 6K ceiling cassette 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 SEER2 and 10.6 HSPF2-4 for energy-efficient year-round comfort.
• Low-Profile Ceiling Cassette Design: Flush-mounted unit fits between standard ceiling joists for a clean, built-in look.
• 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

• Advanced Multi-Zone Comfort: Experts praise the 5-zone setup for delivering precise temperature control across multiple rooms, enhancing energy efficiency.

• Powerful Cooling & Heating: With a total of 55,000 BTU capacity and heat pump functionality, it handles large spaces and fluctuating climates with ease.

• DIY-Friendly Installation: The 5th Gen MRCOOL DIY design simplifies setup, reducing the need for professional installation and lowering upfront costs.

• Quiet, Discreet Air Handlers: Ceiling cassette units ensure unobtrusive airflow and minimal noise, ideal for residential or office environments.

• Energy Efficiency: High SEER ratings and inverter technology contribute to lower energy bills and reduced environmental impact.

Q&A

Q: What is the MRCOOL DIY 5th Gen Mini Split?
A: It’s a 5-zone ductless air conditioner and heat pump system with a 55,000 BTU condenser and five ceiling cassette air handlers (18K + 18K + 18K + 9K + 6K BTU).

Q: Is this system easy to install?
A: Yes, the MRCOOL DIY 5th Gen is designed for easy, do-it-yourself installation without professional help.

Q: What zones does it support?
A: It supports five separate zones, allowing customizable climate control in multiple rooms.

Q: Can it heat and cool?
A: Yes, it functions as both an air conditioner and a heat pump for year-round comfort.

Q: What are the benefits of ceiling cassette air handlers?
A: Ceiling cassette units provide efficient, discreet airflow ideal for rooms with limited wall space.

Q: Is this system energy efficient?
A: Yes, it uses advanced inverter technology to optimize energy use and reduce utility costs.

Maintenance Tips

• Clean Filters Monthly: Remove and wash air filters to ensure optimal airflow and efficiency.

• Check Outdoor Unit: Keep the condenser free of debris, leaves, and dirt to prevent overheating.

• Inspect Drain Lines: Clear condensate drain lines regularly to avoid water buildup and mold.

• Monitor Refrigerant Levels: Have a professional check refrigerant annually for peak performance.

• Schedule Annual Professional Service: Ensure system components and electrical connections are inspected and maintained.