The Friedrich Wallmaster Smart Through-The-Wall Air Conditioner With Heat Pump Model Offers Energy-Efficient Heating And Cooling Solutions Year-Round And Is Designed To Provide Precise And Customizable Comfort While Maximizing Energy Efficiency. As The Only Perfect Fit For Existing 27″ Sleeves, The Wallmaster Seamlessly Replaces Old Units, Ensuring A Hassle-Free Installation. With A Commercial-Grade, Durable Design, It Performs Exceptionally Even In Extreme Conditions, Making It Ideal For Both Residential And Commercial Applications. Fredrich S Precision Inverter Compressor Adjusts Up Or Down Based On Need, Providing The User Precise Temperature Control, Exceptional Energy Efficiencies, And Dependably Quiet Operation. Additionally, The Soft-Start Technology Starts The Compressor With A Slow Ramp Up, Optimizing Energy Savings And Reducing Compressor Strain At Start Up Compared To The Frequent On/Off Operation Of Traditional Units. The Quietmaster Technology Ensures Whisper-Quiet Operation, Reducing Noise Levels Significantly Compared To Traditional Air Conditioners. Built-In Wi-Fi Connectivity Allows Users To Control Settings Remotely Via The App Or Voice Commands With Amazon Alexa And Google Home. Committed To Sustainability, Wallmaster Models Use R-32 Refrigerant, Reducing Environmental Impact While Maintaining Exceptional Performance. Friedrich Wallmaster Provides The Cooling And Heating Power Needed With Industry-Leading Innovation And Reliability.