Siam Compressor Industry Co., LTD. (SCI) is the leading manufacturer and developer of compressors for Variable Refrigerant Flow (VRF). Our product is obvious for saving by inverter technology, its wide capacity range (15-120 RPS) and its durability. Supported by Vapor Injection technology, SCI compressor for VRF still works well even outside temperature as low as -25 °C to -30 °C (lowest evaporating temperature at -37 °C). Furthermore, Fast Oil Return Management system together with SCI identity technology; Smart Oil Sensor, will definitely vanish all your concern about oil. All is to ensure that SCI compressor for VRF gives your system the highest efficiency and the highest satisfaction to you.