MRCOOL DIY 5th Gen Mini Split - 6-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 12K + 12K + 12K + 9K + 6K Ceiling Cassette Air Handlers

MRCOOL DIY 5th Gen Mini Split - 6-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 12K + 12K + 12K + 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 6-Zone system includes four 12K, 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

• Custom Multi-Zone Comfort: Six-zone system allows independent temperature control for diverse room sizes.

• High-Capacity 55,000 BTU: Efficiently heats and cools large homes or commercial spaces.

• Ceiling Cassette Handlers: Sleek design fits into ceilings for unobtrusive, evenly distributed airflow.

• DIY-Friendly Installation: 5th Gen MRCOOL system simplifies setup without professional HVAC expertise.

• Energy Efficient Operation: Optimized for reduced electricity use while maintaining consistent comfort.

• Trusted Brand: MRCOOL is known for reliable, user-friendly, and long-lasting ductless HVAC solutions.

Q&A

Q: What is the MRCOOL DIY 5th Gen 6-Zone Mini Split?
A: A 55,000 BTU ductless air conditioner and heat pump system with six ceiling cassette air handlers (12K + 12K + 12K + 12K + 9K + 6K).

Q: How many zones does it support?
A: Six independent zones allow precise heating and cooling in multiple rooms.

Q: What are the key features?
A: DIY-friendly installation, energy-efficient DC inverter technology, quiet operation, and individual zone control.

Q: Is it energy efficient?
A: Yes, it features high-efficiency inverter compressors for cost-effective, year-round comfort.

Q: Where is it best used?
A: Perfect for large homes, offices, or multi-room spaces requiring flexible, zone-specific HVAC solutions.

Maintenance Tips

• Clean or replace air filters in each indoor unit regularly to ensure optimal airflow.

• Inspect and clean condenser coils on the outdoor unit to prevent dust and debris buildup.

• Keep outdoor unit area clear of obstructions for proper ventilation.

• Check refrigerant lines and insulation for leaks or damage periodically.

• Inspect ceiling cassette drain lines to avoid clogs and water damage.

• Test thermostats and zone controls seasonally to ensure accurate performance.

• Schedule professional service annually to maintain efficiency and longevity.

• Always disconnect power before performing maintenance or cleaning.