Fan-coil GuanAn electric two-way pneumatic valve is the cause of what

when fan coil units in the use of hot and cold water has been circulating, if not installed electric two-way pneumatic valve, so when the fan coil motor power was shut down within the machine of hot and cold water in the cycle of energy consumption, also does not conform to the principle of energy conservation. Fan coil electric two-way electromagnetic pneumatic valve, pneumatic valve commonly known as its working principle is to use the magnetic field generated by electromagnetic coil to pull the pneumatic valve core and transform the on-off of the pneumatic valve, power coil, will depend on the pressure of the spring return pneumatic valve core.
fan coil electropneumatic valve normally closed normally open and two general points, normally closed type power refers to the pneumatic valve closed, normally open type is pneumatic valve is fully open when power; Also connection points and three lines and two wire system, large diameter were mostly three-wire system, there will be two line of small diameter and three-wire system two kinds.
we usually touch the fan coil primary have horizontal dark outfit fan coil, horizontal surface mounted fan coil units, vertical with the fan coil units, vertical dark fan coil units installed this several ways, as for other ways to coil the ultimate is the evolution of several kinds of coil may be fine transformation.