The MRCOOL DIY 5th Gen 4-Zone Multi Zone Mini Split System brings whole-home flexibility with independent control across four areas. Whether you’re building a new house or upgrading your existing HVAC, this system balances performance, efficiency, and modern connectivity. Its inverter-driven design adjusts output dynamically, while its built-in smart capabilities let you monitor usage trends, set schedules, and adapt comfort to your lifestyle. General Features: Four-zone capability for full climate control across multiple rooms. Strong efficiency - reduces energy consumption compared to conventional systems. Operates in harsh conditions, from –13 F to 122 F. Quiet, multi-speed indoor blowers scale to load requirements. Smart control via SmartHVAC, Alexa, or Google Assistant. Corrosion-resistant Gold Fin® condenser coating for extended outdoor life. Energy-saving features like sleep mode and auto-adjusting fan speed. Auto return to last settings after power failure. Defrost control logic in heating mode protects performance in cold weather. Warranty support - 5-year parts, 7-year compressor.