Its working principle is constantly recirculated air McQuay fan coil units located within the room, the air through the cold water (hot water) after the cooling coil (heating) Horizontal concealed fan coil to maintain a constant room temperature . Typically, a new air handling unit after the new air into the room to meet the needs of fresh air through the air-conditioned room. 9 Development Trend editor of fan coil has gone through several different process of change. Early fan coil units, fan coil units on the basis of understanding to stay mainly to meet the requirements on the amount of wind. As long as the air volume to meet the requirements, that is a good fan coil units. Under the guidance of this concept, the main feature was the production of fan coil units are generally excessive amount of wind and brought the crew noise, large energy consumption, testing was produced by fan coil units cooling capacity per unit of power only about 40W. Due to the large fan coil noise parameters, the situation is that people enjoy the air conditioning blowing cold air brought, but also have to suffer from annoying noise. To solve this problem, the state began to modify the fan coil units of product standards. The rapid development of China's fan coil manufacturing, the annual output from the early eighties to tens of thousands of units surged more than one million units, product performance has long hovered at the level of foreign seventies fan coil electric valves, fan coil, Dual Carrier air conditioning provided by the Texas two-Carrier Air Conditioning Equipment Co., Ltd. Carrier Air Conditioning Equipment Co., Texas two (www.slktsb.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the double benefit air conditioning and you hand into the brilliant, for a better future!