What should never be done with a high-pressure cut-out switch?

A high-pressure cut-out switch is an important safety feature in ammonia refrigeration systems, designed to shut down the system if the refrigerant pressure exceeds a safe threshold. This is crucial for preventing equipment damage or failure that could lead to hazardous situations.

Jumping or bypassing a high-pressure cut-out switch undermines its safety function and can lead to dangerous operating conditions. When the switch is bypassed, the system continues to run even when it should be shut off due to excessive pressure, increasing the risk of equipment failure, leaks, or explosions. Therefore, it is critical that this safety device remains fully operational and never bypassed.

The necessity for proper operation and maintenance of the high-pressure cut-out switch emphasizes the importance of following safety protocols in the refrigerant system. Other practices, such as resetting or testing the switch, are appropriate under specific circumstances and do not compromise the system's safety when performed correctly. Additionally, while regular testing and potential replacement are important, doing so without jumping the switch aligns with best practices for maintaining safe operational conditions.