During vapor removal from a low-pressure refrigeration system, which should be true about the system operations?

In a low-pressure refrigeration system during vapor removal, it is essential for all components to be operational to ensure efficient system performance and safety. When vapor is being removed, the recovery compressor needs to be on to appropriately capture and compress the vapor from the evaporator.

Simultaneously, the water pumps should also be running. This ensures that the coolant or water circulating through the system can absorb heat effectively from the condenser, allowing it to reject heat and maintain proper operating temperatures. If the water pumps were off, the system could overheat, leading to potential damage or inefficiency.

Moreover, having all the systems operational helps maintain balanced and consistent pressures within the refrigeration system. Such operation minimizes the risk of liquid refrigerant entering the compressor and ensures that vapor is efficiently condensed back into a liquid for storage or further processing. Therefore, all systems being on is crucial for effective vapor removal and overall system integrity.