MRCOOL DIY 5th Gen Mini Split - 6-Zone 48,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 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 12K + 9K + 9K + 9K + 9K + 9K Ceiling Cassette Air Handlers

Take control of your home’s comfort with the MRCOOL5th Gen DIYMulti-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 12K 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 QuickConnectInstallation: 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 MRCOOLCare registration.

What our Experts Think

• Custom Multi-Zone Comfort – One 12K cassette handles a larger room, while five 9K cassettes cover smaller bedrooms, offices, or compact living areas.

• Energy-Efficient Operation – DC inverter technology ensures smooth temperature control, quiet operation, and reduced energy costs.

• DIY Installation Friendly – Pre-charged No-Vac line sets allow for easy installation without professional HVAC tools.

• Year-Round Climate Control – Heat pump system provides reliable heating in winter and cooling in summer.

• Ceiling Cassette Design – Discreet airflow distribution keeps rooms comfortable without taking up wall or floor space.

Q&A

Q: What does this system include?
A: A 48,000 BTU DIY heat pump condenser paired with six ceiling cassette air handlers: one at 12K BTU and five at 9K BTU.

Q: Is it DIY-friendly?
A: Yes. It features pre-charged R-410A No-Vac Quick Connect lines, allowing easy installation without vacuum pumps or refrigerant charging.

Q: Can it provide both heating and cooling?
A: Absolutely. This ductless heat pump system delivers efficient cooling in summer and heating in winter.

Q: What spaces is it ideal for?
A: Best for one medium-sized room (12K) and five smaller rooms (9K each), all with independent zone control.

Q: Why choose ceiling cassette air handlers?
A: They install flush with the ceiling, save wall space, and provide 360° airflow for consistent comfort throughout each zone.

Q: How energy efficient is it?
A: With DC inverter technology, the system achieves high SEER2 efficiency, quiet operation, and lower energy bills.

Q: Who should choose this setup?
A: Ideal for homeowners or small offices wanting zoned comfort across multiple smaller spaces, with a DIY-friendly installation.

Maintenance Tips

• Clean or replace cassette filters every 1–3 months.

• Keep ceiling cassette panels and vents dust-free for optimal airflow.

• Inspect and clean outdoor condenser coils regularly.

• Check refrigerant lines, insulation, and connections for wear or leaks.

• Schedule annual professional service to maintain reliable multi-zone performance and energy efficiency.