Precise Comfort with Precision Inverter® Traditional room air conditioners have on/off compressors that result in wild temperature swings, inefficient energy use, and hard stops/starts that may shorten the life of the unit. Friedrich’s Precision Inverter® variable speed compressor adjusts up or down based on need, providing the user precise temperature control, exceptional energy efficiencies, and dependably quiet operation. Additionally, the frequent on/off operation of traditional units puts strain on both the unit and the power grid during hot summers. Friedrich Soft-Start™ technology starts the compressor with significantly less strain at start up, saving energy. QuietMaster® Technology Engineered for quiet performance with superior components. As much as 45% quieter than competitor’s products. * Steel inner wall and extra dense insulation blocks outdoor noise * Vibration isolating design and components reduce operating noise * Precision engineering delivers maximum air flow and air dispersion at low sound levels Smart Wi-Fi Control with Voice Command Integrated Wi-Fi control from your smartphone and voice command compatible. New intuitive platform. Simplified 7-day programmability. With our advanced grouping program, you can control multiple units to work independently or as a single system. You can even invite other users to manage one or more of your units. Adjust set point, schedule, control multiple units, and more—at home or remotely via the FriedrichLink® app. Commercial Grade Quality & Durability Superior components and construction. Attention to every detail. Every aspect of Kühl is ultra-premium, outside and in, down to the tiniest component. Constructed with only the finest-quality materials, Kühl is extremely durable and designed to withstand tough use in virtually any commercial setting. Smart & Sustainable Heat Pump Kühl offers both electric and heat pump options. Heat Pumps provide energy-efficient heating by extracting heat from the outside air. They can be used for primary heating in moderate climates and as supplemental heating in colder climates. 230-volt models have backup electric heat that will activate when outside temperatures are too cold for efficient heat pump operation. Kühl+ Room Air Conditioners heat effectively down to 45 degrees—eliminating the need for a second unit to provide warmth. In addition to all the great features you can expect from Kühl ACs, heat pump-enabled Kühl+ units offer: * Increased efficiency * Year-round comfort * Decreased cost * ENERGY STAR® certified models Superior Air Filtration All Kühl units are designed with a unique fresh air intake and stale air exhaust, for improved air quality and circulation. The equipped washable air filter and check filter reminder make fresh air maintenance easy. Kühl air conditioners can utilize an optional FreshAire® MERV 13 air filter that’s effective at capturing and removing microorganisms from the air, which according to ASHRAE*, the leading authority on the science behind advanced indoor air quality, include harmful airborne viruses. . Click HERE for more information on our MERV 13 filters.  *Based on ASHRAE Guidance for Building Operations during the COVID-19 Pandemic. Installation Kühl units are designed with a slideout chassis for more permanent installation and easier access for maintenance. Heavy duty window installation hardware is included with Kühl units and an optional accessory for Kühl+ units.