Electric two ventilation valve technology principle

electric two ventilation valve by temperature sensor, pid temperature controller and electric control of pneumatic valve supply air temperature control system, installed in supply air temperature sensor, the temperature of the detected signal transmission to the temperature controller, the temperature controller compare the readings and setting of the temperature sensor constantly, constantly output signal at the same time, control of electric pneumatic valve opening connection is adjustable, eventually to keep temperature sensor measuring the temperature in setting temperature range.
pipes, is used to control the cold water or hot water air conditioning system of open or closed, to achieve the purpose of the control room temperature.
and drive from single hysteresis synchronous motor drive, spring return pneumatic valve, pneumatic valve does not work in a normally closed state, when the need to work, provided by a thermostat open signal to make the electric pneumatic valve connected to the ac power and action.
, electric pneumatic valve opens two ventilation valve, chilled water or hot water into the fan coil units, to provide room air conditioning or heating, when the room temperature reaches the thermostat set point, the thermostat to power electric pneumatic valve, reset spring to close the pneumatic valve, thus cutting into the fan coil currents, closed by a pneumatic valve and open, make the room temperature always stay in the temperature control setting temperature range.
electric two ventilation valve the operational matters information
, return air blower and the new, electric pneumatic valve interlocking operation.
, when stop return air pneumatic valves, air pneumatic valve is seated.
interlocked with fan, fire prevention system. Air conditioner in the fire automatic stop.
, fan and pneumatic valve interlocking, chilled water fan stopped, frozen water pneumatic valve automatically shut down.
and through time program for timing rev. Stop, air conditioner time for up to one year.
, can according to the actual circumstances of the site and the user's requirements, to modify parameters and chain point of these programs and Settings.
, with indoor setting temperature control return air and fresh air, the proportion of the wind.
and DDC controller will detect the air temperature and outdoor temperature setting after ratio calculation logic judgment, adjust the appropriate air pneumatic valve and the return air pneumatic valve opening, to ensure that in the four seasons can provide enough new air volume, and when the air temperature close to room temperature setting, try to introduce more fresh air, to the efficiency of energy saving.