Air conditioning system is the biggest consumer of electric energy in the subway station

consumes more than 60%of the electricity consumption of low-voltage equipments. According to the different environmental requirements of Metro management rooms

the actual cooling demands and the flexible use of the VRV system

we can achieve the goal of effective energy saving by reasonable regulation and control of the water chilling unit. Take a subway station for example

analyze and calculate the practical energy saving which is more than 25%.