When a compressor service valve is back seated, what happens to the service port?

When a compressor service valve is back seated, the service port is closed. In this position, the valve is designed to prevent refrigerant from flowing through the service port, essentially isolating it from the system. This is crucial for safe service and maintenance of the refrigeration system, as it ensures that no refrigerant escapes and no contaminants enter.

Maintaining proper pressure in the system and preventing any leaks is important for the efficient operation of the refrigeration system. In this closed state, technicians can perform necessary maintenance or repairs without risk of refrigerant loss or pressure disruption in the system.