Xuzhou Sheng Erda Refrigeration Electrical Services Limited II. When installed there to open the valve emptying: as follows: after the internal and external machine fixed, 1. Air conditioning is good, mainly to connect the inner and outer tubes are tight, pay attention to certain connected, to prevent refrigerant leaks. 2. Allen hit the autopilot switch on the air conditioning to work to open the high-pressure valve (thin tube valves), with hexagonal withstand fluoride mouth thimble (fluoride mouth on the low pressure), so that the inside of the gas ran out, 10 seconds around the clock on it, Xuzhou air conditioning maintenance and fluoride, do not wait too long, so as not to run too much refrigerant. So you can make the air inside the pipe to put out. 4. Then the high and low pressure valves are open, both inside and outside the machine's power cord is connected to it. Note: The connecting pipe is copper, not the disk into a dead corner, otherwise it will affect the flow of refrigerant can cause cooling and heating. Demolition when the first harvest of fluorine, otherwise it will cause leakage of fluorine. Xuzhou Sheng Erda Refrigeration Electrical Services Limited five, the indoor temperature does not drop down. Be the first to try his hand in the air conditioner and the air temperature anomaly has installed Xuzhou hand wedding dresses, if normal, then the air conditioner without failure. The cause may be due to many people indoors, excessive heat, high temperatures outside, the room is not shutting the windows, the curtains did not pull Yan, air conditioning repair air near the heat source, such as room door switch frequently. Six, central air cooling operation Xuzhou maintenance points, poor indoor ventilation, the wind is not too cold. New air conditioners generally use three filters, namely, nylon mesh, electrostatic filter layer, activated carbon filter layer, high filtration efficiency, strong purification ability to capture dust particles small diameter air, but the filter cleaning cycle shorter. If not cleaned, there will be poor access when the mesh is blocked, slow cooling air flow to reduce the phenomenon. Xuzhou Hisense air conditioning maintenance, refrigeration Sheng Erda (certified), air conditioning maintenance provided by Xuzhou 圣尔达 Refrigeration Electrical Services Limited. Xuzhou Sheng Erda Refrigeration Electrical Services Limited (xzktw.com) Xuzhou, Jiangsu, heat, refrigeration and air conditioning equipment leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Sheng Erda leader in refrigeration staff warmly welcome all inquiries negotiations to create a better future Sheng Erda refrigeration.