V2016 Series Motorized Valves are used to control the flow of hot water,freezed water in heating,cooling or air-conditioning applications,so as to control room temperature indirectly.It is made up of Actuator and Valve Body.The Valve is closed,configurations of valve body are closed off;the thermostat(NTC) transfers a signal to actuator that will connect to power,and then open valve,input hot water or freezed water to fan coil unit;if the room temperature reaches to set-point,thermostat transfer a signal to actuator to cut off the power,and spring switch returns,valve is closed,and the hot or freezed water is block to fan coil unit.Therefore,the room temperature could be controlled in the set-point through valve opened or closed.