The principle of the group is not comparable compared with the application principle of the central air conditioner, but the new group is divided into one -way flow, two -way flow new and full heat exchange.The new energy -saving temperature control system, the working principle is more complicated, the use effect is also better.Let me take a look at it below.
Before using the fresh air unit to understand the regulating valve and the fan chain, the wind valve is also closed at the same time when the power supply of the fan is cut off.The temperature control system consists of a proportional integral temperature controller, a temperature sensor installed in the air supply pipe 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 air supply air duct to compare the temperature set by the temperature controller and the controller. According to the results of the PI operation, the temperature controller gives electric to electric to electricThe regulating valve has a signal of an open/closed valve, so that the air supply temperature is maintained in the needed range.
When the filter is blocked or when it exceeds the specified value, the pressure difference switch will give the switch signal.When the cooling is needed, 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, and the control valve contact of the electric valve is turned on to close the valve.If 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.
In order to method, when the temperature of the coil will be too low, the low -temperature anti -freezer switch will give the switch signal. The wind turbine stops running to prevent the disk from frozen and cracking. The above content will help you.Sort out and publish it on the website, thank you for your watching.
The above is the introduction of the principle of running the fresh air unit. I hope it can be helpful to you. If you want to learn more about more information, please pay more attention to us- ——