The group temperature control system consists of a proportional integral temperature controller, a temperature sensor installed in the delivery and the electric regulating valve.The role of the controller is to compare the air supply temperature detected by the temperature sensor placed in the wind channel to the temperature controller and the temperature setting of the controller. According to the result of the PI operation, the temperature controller is adjusted by the electric controller to the electric adjustment.A signal of a valve on/off the valve, so that the air delivery temperature is maintained in the required range.
2. Electric regulating valve and fan chain to ensure that the air valve is also closed at the same time when cutting off the power of the fan.The electric adjustment valve can also be connected with the fan. When the fan is cut off the power, the electric regulating valve is turned off.(Anti -frozen requirements can keep the hot water valve position on the required opening through the stroke limiter).
3. When the cooling needs, the temperature controller is placed in the refrigeration mode. When the temperature measured by the sensor is reached or lower than the set temperature, the temperature controller gives the electric valve to a valve signal.EssenceIf the measurement temperature does not reach the set temperature, the temperature controller gives an electric valve to open a valve signal, and the electric valve open valve connection connecting the valve to open it.When the heating is needed, the temperature controller is placed in the heating mode. When the temperature measured by the sensor reaches or higher than the set temperature, the temperature controller gives the electric valve to a valve signal.EssenceIf the measurement temperature does not reach the set temperature, the temperature controller gives an electric valve to open a valve signal, and the electric valve open valve connection connecting the valve to open it.
4. When the filter is blocked or when it exceeds the specified value, the switch signal given by the pressure difference switch.
5. When the temperature of the tray is too low, the low -temperature anti -freezer switch gives the switch signal, and the fan stops running to prevent the disk from frozen and cracking.