Central air conditioning is the largest public building energy-consuming equipment, has great potential in energy efficiency. Research shows that: the scale of the cooling water circulation generated in the process, dirt, algae directly reduce the condenser heat exchange efficiency and cooling capacity, thereby greatly increasing the power consumption, and it will reduce the life of the equipment. Traditional condenser condenser fouling solution in order to prevent scaling the wall, usually by chemical treatment, and physical scrubbing will inhibitor dosing in the water system, scale sterilization agents and several pharmaceutical agents . Corrosion can form a protective film on metal surfaces to prevent corrosion of the wall; inhibitor effect on the formation of calcium carbonate and other ingredients scale crystals, it twisted, dislocation, deformation, and ultimately achieve the purpose hinder the growth of scale; sterilization agents inhibit algae and bacteria to prevent them from breeding to produce microbial slime. Although most users take chemical water treatment technology, but the actual results are not satisfactory, the year also requires periodic mechanical brush to poke the condenser and evaporator, not only cumbersome, but costs are increasing, so I can not guarantee results from the chiller The efficient operation. FC-CACS condenser automatic line cleaning system works: First, set the ball drive the ball emits rubber ball through ball into the condenser tubes, rubber ball speed friction depend on the cooling water condenser brass wall wash dirt, and then from the water recycled rubber ball by ball-side water separator, and finally managed to close the ball back from the ball drive the ball is set to form a loop. Features: 1, simple operation: condenser line cleaning system fully automatic operation, the device automatically controlled by PLC operation, the inner wall of the tubes in the condenser cleaning cleaning, automatic line cleaning does not affect the normal operation of the chiller. 2, to prevent reverse back to the ball, the ball still cards mechanical process, without the ball and card loss goals. 3. Easy to install: FC-CACS system easy to install, without changing the existing pipeline, installation can be completed in one to two days. 4, no manual cleaning gun barrel and keep clean the condenser tubes, it is always at the highest state heat transfer efficiency. 5, to reduce power consumption 5--15%. 6, to eliminate the root causes corrosion and prolong the life of the condenser tubes. 7, slowing the chiller compressor losses, extend its life and reduce maintenance costs. 8, to reduce the use of chemical agents, so that environmental pollution is reduced. 9, no wastewater discharge, low operating costs. FC-CACS condenser line cleaning system energy analysis: an end poor (small temperature difference) = cooling water outlet temperature difference between the saturation temperature of the condenser. 2, usually newly acquired chiller, condenser end difference (small temperature difference) in less than 1.2 ℃, as time increases, the difference becomes larger end. 3, on the basis of checking the accuracy of the chiller cooling water inlet and outlet piping of the thermometer accuracy, and chiller condenser condensing temperature above the FC-CACS system installation: use chemical cleaning or mechanical cleaning brush Machine gun barrel cleaning condenser tubes wall, the inner wall clean and free of dirt confirm tubes after running in the current percentage is 100% and the nominal conditions, the cleaning system to normal use, the temperature difference between the end (small temperature difference) △ t ??of increase the amount of not more than 0.3 ℃ ± 0.1 ℃, ie after installing FC-CACS line cleaning system condenser end difference (small temperature) should be controlled within 1.5 ℃ of.