MRCOOL DIY 5th Gen Mini Split - 6-Zone 48,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 9K + 9K + 9K + 9K + 9K Ceiling Cassette Air Handlers

MRCOOL DIY 5th Gen Mini Split - 6-Zone 48,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 18K + 9K + 9K + 9K + 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 48K 6-Zone system includes one 18K and five 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 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

• Custom Multi-Room Comfort – 48,000 BTU condenser with 18K and 9K cassettes delivers balanced heating and cooling for a variety of room sizes.

• DIY-Friendly Installation – Pre-charged No-Vac line sets enable fast, simple setup without special tools.

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

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

• Independent Zone Control – Each cassette operates separately, allowing precise comfort and energy savings per room.

Q&A

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

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

Q: Is installation DIY-friendly?
A: Yes, the No-Vac pre-charged line sets simplify setup without specialized tools.

Q: Who is this system ideal for?
A: Homeowners with mixed room sizes, needing efficient, zone-specific climate control.

Maintenance Tips

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

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

• Inspect all condensate drain lines to avoid clogs and water leaks.

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

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

• Test remote and smart control functions across all zones.

• Schedule annual professional maintenance to maximize efficiency and extend system lifespan.