中央空调的水系统分为冷却水和冷冻水两个系统：1.冷却水系统主要靠冷却塔散热，水在冷却塔中因滴溅和活动后会与空气充分的接触，然后把空气中很多的尘土、微生物、可溶性盐及腐蚀性气体带入冷却塔中，使水杂质浓度不断增加，这给中央空调系统的工作带来很多危害。

Central air conditioning water system is divided into two cooling water and chilled water system: 1. The cooling water system mainly by the cooling tower cooling, the water in the cooling tower after the spatter and activities will be fully contact with air, and then put a lot of dust in the air, microorganism, soluble salt and corrosive gas into the cooling tower, water impurity concentration increasing, which caused a lot of harm for central air conditioning system work. 

危害表现：尘土、盐类、细菌、溶解氧等→发作水垢、菌藻、锈渣→堆积在主机铜管、过滤器→循环变慢→散热效果差→制冷效果差→浪费动力→缩短设备寿数。

Harm performance: dust, salt, bacterium and algae bacteria, dissolved oxygen and attacks such as scale, rust, slag to stack on the host brass, filters, slow loop to poor heat dissipation effect, poor cooling effect to waste power, shorten the equipment life. 

冷冻系统是一个密封系统，铢积寸累，水中溶解氧很简单构成盘管堵塞，机组及管路附件腐蚀，然后构成制冷量衰减和设备的过早损坏，直接影响到中央空调系统正常工作。

Refrigeration system is a sealing system, build up little by little, the water dissolved oxygen is simple coil plug, the unit and pipeline corrosion in the attachment, and then constitute the refrigerating capacity of premature decay and equipment damage, directly affect the central air conditioning system to work normally. 

危害表现：水腐蚀管道内壁→发作锈渣→堵塞主机盘管及风机盘管→致使盘管炸裂或没有制冷效果→浪费动力→缩短设备运用寿数。

Harm performance: water rust and corrosion of pipeline caused by attack slag to jam host coil and fan coil, the coil crack or no refrigeration effect to waste power, shorten the equipment using life spans.