Description

VA****0 Series Motorized Two-way Valve , consisting of valve body and actuator driven by hysteresis motor, are specially coupled with fan coil of commercial air conditioners to control the medium( hot or cold water) in the coil through a room thermostat. As a result, it can achieve automatic temperature control. When power on, actuator started by synchronous hysteresis motor open valve, and when power off, spring (return) switch close valve. Valve is closed off when it is not in use. When the room temperature is above the set-point, thermostat send a power signal to actuator that will connect to power, open valve , input hot water or chilled water to fan coil unit. By doing this, the cooling or heating air will be provided to the room. When the room temperature reached the set-point, thermostat cut off power, motorized valve closes, spring switch returns , the hot water or chilled water is blocked in fan coil unit. By valve opening and closing, the room temperature can be maintained at the set-point. Technical specifications 1. Power supply : **0/**0/*4土*0% V, *0ï&frac*2;ž*0Hz 2. Ambient temp. : 0ï&frac*2;ž*0℃ 3. Medium :cold & hot water 4. Power input : ï&frac*4;œ6W 5. Medium temperature : 0ï&frac*2;ž*5℃ 6. Valve open/close : within 7 seconds after power on/off 7. Pressure : 1.6Mpa 8. Motor : Synchronous hysteresis motor