When testing a refrigerant system for leaks, how is the maximum pressure determined?

In determining the maximum pressure for testing a refrigerant system for leaks, it's essential to refer to the lowest rated test pressure of the equipment. This ensures that the system is not subjected to pressures that could exceed the safe limits of its components. Each part of the refrigerant system has a specific pressure rating that is designed to withstand during normal operation. By adhering to the lowest rating, technicians can prevent damage to the system while still effectively checking for leaks.

This approach is crucial for safety and integrity, as exceeding the lowest rated pressure could risk rupturing components or causing other failures. Moreover, testing beyond manufacturer specifications could void warranties or lead to unsafe operating conditions. Thus, considering the lowest rated test pressure aligns with best practices in HVAC safety and reliability.