Small & lightweight The Samsung DUCT S Air Conditioner is easy and convenient to install and maintain. Its exceptionally compact design reduces its volume and weight by 30% compared with conventional air conditioners. So it's much easier to handle and install, even in small spaces. Auto ESP Adjustment The Samsung DUCT S Air Conditioner's Auto ESP Adjustment function efficiently and automatically senses the external static pressure (ESP), whatever the length of duct. The ESP can also be easily adjusted using a remote control, which reduces the installation time. 3-way access The Samsung DUCT S Air Conditioner is designed to be accessed from three directions – top, side and bottom – using an easy to remove Slide Fit cover. As a result, it’s much easier to maintain wherever it's installed – saving you time and money. Smart Inverter System The large Sirocco Fan features aerodynamic blades, so it generates more air, with less noise. The compact Flat Micro Heat Exchanger is also extremely efficient, while the Twin Rotary BLDC Compressor reduces vibration, so it’s quieter and more reliable.