What device is located on the condenser side of the system and shuts off the compressor before the pressure relief valve opens?

The high pressure cut out is a safety device that is specifically designed to monitor the pressure within the refrigeration system, particularly on the condenser side. It automatically shuts off the compressor if the pressure exceeds a predetermined threshold. This function is crucial for protecting the system from excessive pressures that could lead to potential damage or failure.

When the pressure in the system rises to a critical level, the high pressure cut out will activate, disconnecting the compressor from the power source. This action occurs before the pressure relief valve opens, ensuring that the system has an additional layer of protection against overpressure conditions. By stopping the compressor, the high pressure cut out helps to prevent catastrophic failures, such as ruptures or leaks, which can pose significant safety hazards.

The high pressure cut out plays a vital role in maintaining the efficiency and reliability of refrigeration systems, ensuring that they operate within safe and optimal pressure ranges. Understanding the function of this device is essential for anyone working with refrigeration operating systems, as it is a key component in maintaining system safety and integrity.