The chiller shows several reasons for overloaded water pumps

1. Excessive load: When the installation method or piping of the pump is incorrect, such as the water pipe of the pump is too thin, or the customer's load (the number of intercooled titanium pipes is too small), the running resistance of the pump will increase, resulting in an increase in the operating current, triggering the action of the householder, and displaying the overload fault of the pump.

2, the centrifugal water pump of the industrial chiller has dirty things entering, stuck centrifugal impeller: when the water refrigeration equipment resources have dirty things sucked in by the centrifugal water pump, it will cause the centrifugal impeller of the centrifugal water pump to be stuck, expanding the frictional resistance of the centrifugal water pump operation, the same centrifugal water pump operating current expansion, open the protective device posture.
　3. Problems in the water pump itself: poor bearings, decreased insulation resistance after long-term operation of the heating coil, etc.

4. The switching power supply of the power supply system is abnormal: when the working voltage of the switching power supply of the centrifugal water pump of the industrial chiller centrifugal water pump is too high or too low, it is a common fault problem that causes the operating current of the centrifugal water pump to be too large and causes the load of the centrifugal water pump.

The chiller regulation system adjustment object is a more basic link in the refrigeration equipment section system, all the regulating equipment serves it, and according to the characteristics of the adjustment object to design and adjust the adjustment system, the quality of the regulation system is not only related to the dynamic characteristics of the regulator, but also related to the dynamic characteristics of the adjustment object.