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

MRCOOL DIY 5th Gen Mini Split - 6-Zone 55,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 9K + 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 55K 6-Zone system includes one 9K 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 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 – 55,000 BTU condenser paired with 9K and 6K cassettes provides efficient heating and cooling across multiple small to medium rooms.

• DIY-Friendly Setup – Pre-charged No-Vac line sets allow fast, easy installation without professional tools.

• Discreet Ceiling Design – OuttaSight cassettes provide quiet, even airflow while keeping walls and floors free.

• Energy-Efficient Year-Round Performance – Inverter heat pump ensures reliable cooling in summer and efficient heating in winter.

• Independent Zone Control – Each cassette operates individually for precise comfort and energy savings per room.

Q&A

Q: What area can this system cover?
A: Up to 3,300 sq. ft., depending on insulation and layout.

Q: Can each room be controlled independently?
A: Yes, each cassette has its own thermostat for zone-specific comfort.

Q: Is it suitable for heating and cooling?
A: Yes, it’s a heat pump system for year-round use.

Q: Why is this system DIY-friendly?
A: No-Vac pre-charged line sets allow installation without special tools or vacuum pumps.

Q: Who is this setup ideal for?
A: Homeowners with mostly smaller rooms or multiple compact spaces needing flexible climate control.

Maintenance Tips

• Clean or replace air filters in each cassette every 1–2 months to maintain optimal airflow.

• Wipe cassette panels and vents regularly to reduce dust buildup.

• Inspect all condensate drain lines to prevent clogs and leaks.

• Ensure pre-charged line set connections are secure and leak-free.

• Keep the outdoor condenser clear of debris, leaves, and obstructions.

• Test remote and smart controls across all zones for proper operation.

• Schedule annual professional servicing to maintain efficiency and prolong system life.