Currently cooler water resistance determining factor, purify air conditioner cooler, such as heat transfer coefficient air resistance coefficient by touching the specimen experiment results sorted out by the empirical formula, the same structural parameters and test specimens mainly refers to material sheet from the sheet discharge tube from the number of rows of different sizes from surface heat exchanger, the heat transfer coefficient of air resistance coefficient can be contacted directly experimental formula. But many manufacturers, coolers, water resistance to the user when the surface heat exchanger provided by product samples or, often experimental formula directly test specimens calculate the surface heat exchanger with the same structure parameter test specimen The water resistance. The heat exchanger directly empirical formula for calculating test specimen, when the water flow rate in the branch pipe too, the water resistance is applied to a project, the cooler manufacturers, found that the system of water is small, Shandong cooler manufacturers, affect the normal operation, the water resistance of this air-conditioners on-site measurement, when the water flow rate in the manifold resistance, its water resistance is much greater than the calculated value of 8K guard. Air supply duct design specifications generally assumed velocity method, the main duct holding 8-10 m / s, books duct 6-8 m / s, the wind kept most marginalized 4-6 m / s. Air duct pipe materials are generally made of galvanized plate (white metal) also uses glass, steel, plastic duct, PP board, cloth air duct. Cooler air duct economy overall requirement is the lowest air resistance and air flow noise and energy-saving air-conditioning duct bend radius can reach the maximum value is generally less than 2 times the diameter of the duct ventilation resistance reducing elbow. Air supply piping length of piping design pressure based on different models of environmentally friendly air-conditioning different characteristics. Air conditioning air outlet pipe set actual decline takes place in Chur, socket design air volume is that the temperature must reduce the amount of it where it is needed, to determine the specifications of the wind outlet socket wind speed air flow. Blowers material plastic and aluminum products, biting wind tone pattern according to the actual situation in all its forms, is recommended to select the warm air-conditioning special socket biting wind, the average velocity of the throat control 3-6 m / sec, the recommended 4-5 meters / sec. Cooler manufacturers drill_16 cooler (certified) _ coolers provided by the Texas Huaxin air-conditioning plant. Texas Watson conditioning plant (www.wchuaxin.com) (www.wchuaxin.com) Shandong Dezhou, heat, refrigeration and air conditioning equipment leader, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Air conditioning leader at Watson with the staff warmly welcome all inquiries negotiations to create Watson conditioned a better future.