Mr. Cool DIY 55,000 BTU 6 Zone Ductless Multi-Zone Outdoor Unit - R454B

MRCOOL® DIY-MULTI6-55HP230D-O DIY® 55K BTU R-454B Multi-Zone Ductless Mini-Split Condenser
The DIY-MULTI6-55HP230D-O 5th Generation MRCOOL® DIY® 55K BTU Multi-Zone Ductless Mini-Split Condenser delivers whole-home comfort for up to six zones totaling 2,290 sq ft. With 22 SEER2 and 10.6 HSPF2-4 performance, this system offers outstanding efficiency and the freedom of true DIY installation—no HVAC professional required. It pairs with MRCOOL® Quick Connect® pre-charged line sets (sold separately) filled with eco-friendly R-454B refrigerant, allowing you to skip evacuation and charging for a faster, easier setup. Control your comfort from anywhere via the SmartHVAC app, or enjoy hands-free operation with Amazon Alexa or Google Assistant. The app also enables scheduling, mode adjustments, and energy monitoring for each zone. Backed by a limited lifetime replacement warranty (with MRCOOL® Care Program enrollment), plus 7-year compressor and 5-year parts coverage, this condenser provides lasting performance, customization, and efficiency for larger homes.

General Information
System Type: Multi-zone ductless mini-split condenser
Model: DIY-MULTI6-55HP230D-O - MRCOOL® DIY® 55K BTU Multi-Zone
Capacity: 55,000 BTU Heating & Cooling
Zones Supported: Up to 6 air handlers
Total Room Size: Up to 2,290 sq ft combined
Efficiency Ratings: 22 SEER2 / 10.6 HSPF2-4
Refrigerant: R-454B (pre-charged Quick Connect® line sets compatible, sold separately)

Key Features
High Efficiency: 22 SEER2 and 10.6 HSPF2-4 ratings
DIY Installation: Install without professional tools or services
Eco-Friendly Refrigerant: R-454B for sustainability and efficiency
Multi-Zone Support: Connect up to 6 air handlers for full-home coverage
Smart Controls: Remote, app, Alexa & Google Assistant integration
Custom Comfort: Scheduling, mode control, and energy monitoring per zone
Warranty Protection: Limited lifetime replacement, 7-year compressor, 5-year parts

Included Components
DIY-MULTI6-55HP230D-O- MRCOOL® DIY® 55K BTU multi-zone condenser

Ideal For
Large homes needing powerful, efficient, DIY-installed multi-zone heating and cooling with smart control features and long-term reliability.