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

MRCOOL DIY 5th Gen 6-Zone 55,000 BTU Mini Split System

The MRCOOL DIY 5th Gen 6-zone mini split delivers 55,000 BTU of ductless heating and cooling across 6 zones with ceiling cassette air handlers. This air conditioner and heat pump system covers approximately 2,200-2,750 sq ft total, making it a solid fit for whole-home comfort or large multi-room setups.

Air Handler Configuration

This package includes 6 ceiling cassette air handlers sized at 12K + 12K + 12K + 6K + 6K + 6K BTU. Each handler operates independently, so you can set different temperatures in different rooms. Ceiling Cassette units mount flush in the ceiling for a clean, built-in look.

Key Specs

• Total capacity: 55,000 BTU across 6 zones
• Air handlers: 12K + 12K + 12K + 6K + 6K + 6K BTU (ceiling cassette)
• Type: Ductless mini split heat pump (heating + cooling)
• Installation: DIY with pre-charged line sets — no HVAC license needed
• Voltage: 230V
• Refrigerant: R-410A pre-charged
• Coverage: ~2,200-2,750 sq ft total

Why DIY

MRCOOL's DIY line ships with pre-charged refrigerant lines that connect with simple flare fittings. No vacuum pump, no manifold gauges, no HVAC certification. You'll save $2,000-$5,000 in labor compared to a traditional ducted system.

Good Fit For

Homeowners tackling whole-home HVAC without ductwork. Works well in open-concept homes, additions, finished basements, multi-story houses, and spaces where running ductwork isn't practical or cost-effective. The 6-zone setup lets you heat and cool each room on its own schedule.