Central air conditioning maintenance in the home central air conditioning maintenance, experts recommend that you do the following two points: first, the proper use and operation of home central air conditioning units, regular maintenance, useful for extending the service life, we recommend at least two years testing and maintenance should be done once. Secondly, in front of the home central air conditioning maintenance host convert warm up for 24 hours. When cleaning the air conditioner condenser and evaporator coil can be directly hosed, if there are no conditions can also be used dry soft brush, brush the dust filter online Xuzhou used central air conditioning recovery, we must pay attention to the horizontal cleaning Directions cleaning hand air conditioning, so as not to damage the finned coil. 1 fan coil unit installation, carefully check the appearance before installation, commissioning tests should be stand-alone, whether audition sound normal, functioning smoothly. The system should be installed after the pressure test, the test pressure of not less than 6 kg (residential central air-conditioning). Experimental observation time of 24 hours, Xuzhou hand air conditioning maintenance, no leakage in compliance. 2, the unit should be set up stand-alone, hangers, installation location, height and slope should be correct, firmly fixed. 3, below the ceiling unit should be set aside inspection port to run maintenance work. 4, the unit with hot and cold water pipes, condensate pipes, ducts, flexible to take over the connection box or return air vents should be tight and reliable. 5. During the installation process, you must note the following: do not touch (1) Transportation volute coil handling to prevent deformation of the scroll noise. (2) In order to ensure smooth drainage, in normal operation Xuzhou hand air conditioning repair parts, the unit must be installed to ensure low noise, easy maintenance, condensate drain smoothly. (3) Saving the session can not be a foreign body accumulating, and all foreign bodies were cleared from the water dish to ensure smooth drainage path. (4) fan coil power line zero line must be connected to the specified zero line position, otherwise it will burn the motor. (5) does not allow a thermostat to control many different types of fan coil units. (6) When tightening the connecting pipes should be the correct approach. (7) is installed, add water to the front coil must open coil catchment head purge valve, the air inside the coil to be drained before the air drain valve is closed. (8) The machine must be installed coil connected to the outlet flexible connection and closing valves, shut-off valve is installed between the outlet and then soft connection. (9) the system is installed, the outlet size should be in written form to the user. 6, the outlet can not use white canvas, in order to avoid leakage. Xuzhou used central air conditioning recovery, Sheng Erda refrigeration (certified), second-hand air conditioning provided by Xuzhou 圣尔达 Refrigeration Electrical Services Limited. Xuzhou Sheng Erda Refrigeration Electrical Services Limited (xzktw.com) is in 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. In Sheng Erda refrigeration leadership with the staff warmly welcome all inquiries negotiations to create a better future for refrigeration Sheng Erda.