Analysis of the problem of excessive refrigerant charging in the chiller refrigeration system

For some users who use industrial chillers, it may be necessary to fill the refrigerant for some reasons, but it is impossible to judge whether the refrigerant is overcharged, and how the overfilling will cause harm to the unit. In fact, when the refrigerant in the chiller refrigeration system is excessive, the following phenomena generally occur:
1. If the refrigerant in the chiller refrigeration system is excessive, it will take up part of the volume inside the condenser, thus reducing the heat transfer area, weakening the heat exchange, causing the condensing temperature to rise and the condensing pressure to rise.
2. It will cause the evaporation temperature of the chiller refrigeration system to rise, the evaporation pressure to rise, and the cooling effect of the chiller to decrease.
3. Excessive refrigerant charging will increase the suction pressure of the chiller refrigeration compressor.
4. Due to excessive refrigerant, refrigerant liquid or droplets that have not completely evaporated enter the compressor cylinder, which may cause wet compression or even liquid hammer.
5, the starting load is aggravated, the motor is difficult to start, in severe cases, the motor will be burnt due to excessive current.