At what percentage is a low-stage recirculator liquid call considered abnormal?

A low-stage recirculator liquid call refers to the return of refrigerant liquid from the low-stage evaporator to the compressor, and monitoring its percentage is key for maintaining system efficiency. When the percentage of this liquid call hits 25%, it is viewed as a threshold indicating that the system might not be operating optimally.

At 25% or below, the system might start to experience performance issues, such as lower efficiency, increased energy consumption, or potential damage due to improper lubrication of the compressor components. Recognizing when the liquid call percentage is at 25% is crucial, as it allows operators to take corrective actions before further complications arise. Monitoring these levels helps in maintaining the system within its designed operational parameters, ensuring optimal performance and longevity of the equipment. Thus, understanding that a 25% reading marks the point at which maintenance or adjustments should be considered is vital for effective refrigeration system management.