MRCOOL DIY 5th Gen Mini Split - 6-Zone 48,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 6K + 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 48K 6-Zone system includes one 18K and five 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 21.8 SEER2 and 10 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
-
Scalable Comfort – 6-zone setup with 48,000 BTU total capacity lets you cool or heat multiple rooms with one system.
-
DIY-Friendly Design – Pre-charged linesets and plug-and-play architecture simplify installation without professional HVAC tools.
-
Energy Efficiency – “5th Gen DIY” series features improved SEER2/HSPF2 ratings and better thermal performance.
-
Flexible Air Distribution – Ceiling cassette handlers deliver discrete, low-profile climate control that blends into interiors.
-
Reliable Operation – Designed for variable load across zones, maintaining consistent comfort without overworking.
-
Best For – Homeowners or small commercial users wanting a multi-room, efficient ductless split system with lower installation complexity.
Q&A
Q: What is the MRCOOL DIY 5th Gen 6-Zone Mini Split System?
A: A 48,000 BTU ductless air conditioner and heat pump with six ceiling cassette air handlers for customizable whole-home comfort.
Q: What sizes are included?
A: One 18K BTU and five 6K BTU ceiling cassette air handlers for flexible zone control.
Q: Is professional installation required?
A: No, the DIY system is designed for easy installation without specialized tools or HVAC experience.
Q: What are the main benefits?
A: Energy-efficient heating and cooling, quiet operation, smart controls, and precise zone temperature management.
Q: Who is this system ideal for?
A: Homeowners seeking a reliable, customizable, and easy-to-install multi-zone climate solution.
Maintenance Tips
-
Clean or replace air filters every 4–6 weeks for optimal airflow.
-
Wipe ceiling cassettes and indoor units with a soft, damp cloth.
-
Inspect outdoor condenser for debris and clear obstructions regularly.
-
Check refrigerant lines and connections for leaks annually.
-
Schedule professional servicing once a year for peak efficiency.
