MRCOOL Advantage Complete System - 5th Generation The 5th Generation MRCOOL Advantage Series offers advanced ductless mini-split systems that balance affordability, efficiency, and eco-friendly operation. Designed for a wide range of spaces—from small bedrooms and offices to large open-plan areas—these systems provide reliable, energy-efficient climate control for every environment. Each system utilizes R-454B refrigerant, which delivers enhanced energy efficiency and significantly reduces greenhouse gas emissions. With a Global Warming Potential approximately 80% lower than R-410A, the Advantage Series is a sustainable solution for environmentally conscious homeowners and businesses. All systems come with built-in Wi-Fi, allowing convenient control via smartphone, Amazon Alexa, or Google Assistant. Users can remotely adjust settings, monitor performance, and create schedules to maintain comfort at all times. Installation requires a professional HVAC technician, ensuring optimal performance and longevity. Warranty coverage includes a 1-year parts warranty and a 2-year compressor warranty, with eligibility for a Limited Lifetime warranty through the MRCOOL Care Program upon registration. Combining smart technology, quiet operation, and a ductless design, the Advantage Series offers fast, low-cost installation while providing consistent comfort throughout your space. Key Features R-454B Refrigerant – 80% lower GWP than R-410A Wi-Fi Built-in – Control via smartphone, Alexa, or Google Assistant Quiet Operation – Whisper-quiet performance Ductless Design – Faster, lower-cost installation Specifications 9k BTU Systems Voltage Coverage SEER2 HSPF2-4 Application 115V Up to 400 sq. ft. 21.5 9.0 Small rooms, bedrooms, offices 230V Up to 400 sq. ft. 21.2 9.1 Small rooms, bedrooms, offices 12k BTU Systems Voltage Coverage SEER2 HSPF2-4 Application 115V Up to 550 sq. ft. 21.2 8.7 Medium-sized rooms, small living spaces 230V Up to 500 sq. ft. 21.3 9.1 Medium-sized rooms, small living spaces 18k BTU System Voltage Coverage SEER2 HSPF2-4 Application 230V Up to 800 sq. ft. 19.2 9.3 Large bedrooms, living rooms, small open-plan areas 24k BTU System Voltage Coverage SEER2 HSPF2-4 Application 230V Up to 1,050 sq. ft. 18.7 9.3 Large living areas, open-plan spaces 36k BTU System Voltage Coverage SEER2 HSPF2-4 Application 230V Up to 1,550 sq. ft. 18.0 8.5 Extra-large spaces, large open-plan homes, light commercial