On which side of a compressor is the low pressure switch located, and what does it do?

The low pressure switch is located on the inlet side of the compressor, and its primary function is to shut down the system if the pressure drops too low. This is a critical safety feature to prevent damage to the compressor, as low pressure can indicate inadequate refrigerant levels or a restriction in the refrigerant flow. If the pressure falls below a certain threshold, the low pressure switch activates and sends a signal to shut down the compressor, thereby protecting it from potential harm caused by running without sufficient refrigerant to create the necessary pressure for operation. By doing so, the system ensures efficient and safe functioning, while also preventing compressor failure due to low refrigerant conditions.