MRCOOL DIY 5th Gen Mini Split - 6-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 12K + 6K + 6K + 6K + 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 6-Zone system includes two 12K and four 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
-
Versatile Multi-Zone Cooling & Heating: 55,000 BTU total with six ceiling cassette air handlers (two 12K, four 6K) for tailored comfort across rooms.
-
DIY Installation Friendly: Designed for easy setup without professional assistance.
-
Advanced Inverter Efficiency: Quiet, energy-saving operation reduces utility costs.
-
Compact Ceiling Cassettes: Sleek design integrates seamlessly into ceilings for discreet climate control.
-
Smart Home Ready: Wi-Fi enabled for remote control and scheduling convenience.
-
Individual Zone Control: Allows room-by-room temperature customization to maximize comfort and savings.
-
Durable & Reliable: Built with high-quality materials for lasting performance.
Q&A
Q: What size area does the MRCOOL DIY 6-Zone Mini Split system cover?
A: Designed for multi-room spaces up to 3,000 sq. ft. with flexible zoned heating and cooling.
Q: What are the capacities of the included air handlers?
A: Two 12,000 BTU and four 6,000 BTU ceiling cassette units for customizable comfort.
Q: Does this system provide both heating and cooling?
A: Yes, it offers reliable heat pump heating and air conditioning for year-round use.
Q: Is this system DIY-friendly?
A: Yes, built for easy DIY installation with no need for professional tools or refrigerant handling.
Q: What energy-saving features does it include?
A: Utilizes inverter technology for efficient operation and precise temperature control.
Maintenance Tips
-
Clean or replace air filters in each indoor unit every 30–60 days
-
Inspect and clear condensate drain lines monthly to prevent blockages
-
Clean indoor coils and fan blades annually for optimal airflow
-
Keep outdoor condenser unit free of debris with 2–3 feet clearance
-
Schedule annual professional maintenance to check refrigerant levels and system health
-
Ensure ceiling cassette vents remain unobstructed for balanced airflow
-
Regularly inspect electrical connections for safety and efficiency
