Is it true or false that equipment with over 100 lbs. of refrigerant should have stop valves on each inlet of the liquid receiver?

Having stop valves on each inlet of the liquid receiver for equipment that contains over 100 lbs. of refrigerant is indeed a critical safety measure. This requirement is established to prevent refrigerant from escaping into the atmosphere during maintenance or repairs. By installing stop valves, technicians can effectively isolate the refrigerant in the system, ensuring that it remains contained while work is being performed on the receiver or associated piping.

Additionally, this practice helps maintain system integrity and ensures compliance with regulations set forth by environmental agencies and safety standards. Properly installing stop valves contributes to minimizing refrigerant leaks, which is not only an important safety consideration but also a legal requirement in many jurisdictions to protect the environment.

In summary, the answer is true, as stop valves play an essential role in the safety and proper maintenance of refrigeration systems containing significant amounts of refrigerant.