Analysis of the causes of water pump failure:
The overload protector on the AC contactor of the water pump is activated.
The water pump capacitor is burnt out (single-phase).
Problems with the water pump itself, such as burnt coils and dead bearings.
Troubleshooting methods for water pump faults:
Simply press the RESET button in the overcurrent protector.
Replace the capacitor.
Replace the water pump (pay attention to the direction of rotation when replacing the water pump).
matters needing attention:
Before troubleshooting the above faults of chiller units and industrial chillers, it is necessary to check whether the power connection lines are disconnected, damaged, short circuited, etc., to avoid unnecessary trouble during maintenance.
When the machine malfunctions, professional personnel should be hired for machine inspection and maintenance. It is strictly prohibited to forcefully start the machine while handling the malfunction.
Industrial chiller start-up and operation
Open the inlet and outlet gates of the switching well according to the scheduling instructions, and close all other gates.
Before starting the water pump, clean water should be injected into the connecting pipe on the packing box to lubricate the rubber bearings. After the pump has discharged water, it can be turned down. If there are water droplets, it is advisable to check the oil level at the pump bearing position to ensure smooth water and oil flow in all areas.
Before starting the water pump, check that all connecting parts are not loose. Rotate the coupling by hand to see if it is flexible and if there is any noise inside the pump.
When starting the water pump, no one is allowed to stand beside the machine. After starting, the machine should be observed for at least five minutes to check the equipment condition. If there are abnormal vibrations, sounds, or abnormal water discharge, the machine should be stopped immediately for inspection. It is not allowed to leave the pump immediately after it is put into operation.