MRCOOL DIY 5th Gen Mini Split - 6-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 12K + 12K + 12K + 9K + 9K 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 + 9K 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 one 18K, three 12K and two 9K 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

• Multi-Zone Comfort: Six-zone setup allows independent temperature control for multiple rooms or spaces.

• High-Capacity Performance: 55,000 BTU condenser efficiently heats and cools larger homes or commercial areas.

• Ceiling Cassette Handlers: Sleek, low-profile design integrates into ceilings for unobtrusive climate control.

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

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

• Trusted Innovation: MRCOOL is known for reliable, high-performance, and user-friendly ductless 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 + 9K).

Q: How many zones does it support?
A: Supports six independent zones for customized heating and cooling in different rooms.

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

Q: Is it energy efficient?
A: Yes, designed with high-efficiency DC inverter compressors for cost-effective, year-round climate control.

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

Maintenance Tips

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

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

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

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

• Inspect ceiling cassette drain lines for clogs to prevent water issues.

• Test thermostat and control settings for all zones seasonally.

• Schedule professional service annually to maintain system efficiency.

• Always disconnect power before performing cleaning or maintenance.