Honeywell 3 Way 110Vac Full DN Size Optional Water Flow Control Thermostatic Motorized Valve

HTW-W27 Series Motorized Valves are used to control the flow of hot water/chilling

water, in heating/cooling or air-conditioning applications so as to control room

temperature indirectly. It consists of Actuator and Valve Body. The valve is normally

closed. When thermostat(with NTC sensor)transfers a signal to actuator, which switch on

power supply, and then opens valve letting hot water or chilling water to fan coil unit. If

the room temperature reaches set-point, the thermostat transfers a signal to actuator to cut

off the power supply and spring return switches the valve off, and stops the flow of hot

or chilling water. Therefore, the room temperature could be kept as a constant

temperature through valve opened or closed