MRCOOL® 55k DIY 5th Generation 6 Zone Multi-Zone Mini-Split Condenser 230v

Take full control of your home’s climate with the MRCOOL® 55K DIY 5th Generation 6-Zone Mini-Split Condenser (230V)—a high-capacity, professional-grade system designed to heat and cool up to six separate spaces with one powerful outdoor unit.

Built for maximum coverage and flexibility, this system combines advanced efficiency, smart technology, and true DIY installation, making it one of the most capable multi-zone solutions available today.

Designed to support up to 6 indoor air handlers, this condenser allows you to independently control temperatures in multiple areas such as:

• Whole-home heating & cooling
• Large multi-room homes
• Garage + living space setups
• Renovations & additions
• Small commercial spaces
  

It can efficiently cover up to ~2,290 sq. ft., making it ideal for full-home comfort or large multi-room setups.

MRCOOL’s patented system makes installation simple and cost-effective:

• Pre-charged QuickConnect® line sets (no vacuuming required)
• No specialized tools or certifications needed
• Faster setup compared to traditional HVAC systems

This allows homeowners to install a complete multi-zone system without hiring a professional

With an impressive up to 22 SEER2 rating, this system delivers:

• Lower energy consumption
• Reduced monthly utility bills
• Consistent heating and cooling across all zones

Designed for long-term savings without sacrificing performance.

This 5th generation system uses R-454B refrigerant, which:

• Improves efficiency
• Reduces environmental impact
• Meets modern HVAC standards

A future-ready upgrade over older refrigerants.

Take full control of your system from anywhere with:

• SmartHVAC® app (iOS & Android)
• Voice control via Alexa & Google Assistant
• Zone scheduling and energy monitoring

Manage each room independently for maximum comfort and efficiency.

Each connected air handler operates independently, allowing you to:

• Customize temperatures room-by-room
• Eliminate hot and cold spots
• Reduce energy waste in unused areas

Perfect for families or multi-use homes.

Built for Long-Term Reliability

• Durable outdoor condenser construction
• Advanced safety and protection systems
• Industry-leading warranty options, including compressor coverage

Designed for dependable, year-round performance.

Includes DIYPRO® cable:

• Eliminates the need for electrical conduit
• Adds durability for outdoor conditions
• Speeds up installation time

Compatible With:

• MRCOOL® 6K, 9K, 12K, 18K, and 24K 5th Gen air handlers
• DIY QuickConnect® line sets and accessories

If you need maximum power, flexibility, and coverage, the MRCOOL 55K system delivers industry-leading performance with the simplicity of DIY installation—making it one of the best solutions for large homes without the cost of traditional HVAC systems.