Precautions For Debugging Fully Automatic Heat Exchanger Units

Display and set parameters through the control screen.First, the start and stop of the motor and the status indication,Alarm indication. The system collects and stores historical data according to the set time interval.Historical data is not lost when power is off.

When the water pump motor in the heat exchange unit has faults such as short circuit, phase loss, overload, etc.The control system will give a pump stop signal and the electric dispatching valve will automatically close.When the circulation pump is shut down normally, the primary side electric dispatching valve should be closed first, and then the secondary circulation pump should be interrupted after three minutes.

Due to the large thermal inertia of the heating system, if the electric control valve is used for continuous control,Oscillation will occur, causing the adjusted parameters to show an unstable phenomenon of repeated ups and downs.The electric control valve should be controlled intermittently, and the method of controlling it once every 1-2 hours can be adopted.

Check whether the set value of the unit pressure meets the requirements of the project itself.If it does not match, reset it and check whether the various maintenance devices of the unit can operate normally.When the system pressure is too high, the control system activates the pressure relief valve to release the pressure.

The controller constantly checks the pressure of the circulating pump.When the pressure drops, there may be leakage in the pipeline. In this case, the circulation pump should be stopped to protect the water in the pipeline network.The controller constantly checks the operating status of the circulation pump. When the circulation pump stops, the primary network flow control valve is closed and the water supply pump is stopped at the same time.