关于中央空调节能改造方案，在中央空调的循环系统（冷却泵、冷冻泵及冷却风机）中接入变频系统，利用变频技术改变电机转速来调节流量和压力的变化用来取代阀门控制流量，能取得明显的节能效果。-Central air-conditioning energy-saving programs on access frequency central air-conditioning system in the circulatory system (cooling pumps, refrigeration pumps and cooling fans), the use of inverter technology to change the motor speed to adjust to changes in flow and pressure to replace valves control the flow, can achieved significant energy savings.