What step follows after the unit cycles off when pumping down a system?

When a refrigeration system is pumped down, the process involves removing refrigerant from the evaporator and condenser to avoid refrigerant leakage and facilitate maintenance. After the unit cycles off and the desired amount of refrigerant has been removed, it's crucial to check the liquid line receiver because this component plays a pivotal role in temporarily storing refrigerant in a liquid state.

The liquid line receiver helps manage the refrigerant levels in the system, ensuring that the refrigerant is circulated correctly to maintain efficiency. By locating and assessing the liquid line receiver, a technician can determine if additional refrigerant needs to be added or if any maintenance is required on that part of the system.

While closing the service valves, checking refrigerant levels, and starting the recovery process are critical steps in the overall procedure, they typically occur after confirming the status of the liquid line receiver and ensuring that it is operating as intended. Therefore, focusing on the liquid line receiver is an essential follow-up action after the system has cycled off and the pumping down has taken place.