What does the low oil sump temperature protection device ensure before the compressor starts?

The low oil sump temperature protection device plays a crucial role in ensuring that the compressor operates within safe and effective parameters. By confirming that the refrigerant dissolved in the oil has been separated from the lubricant, the device ensures that the compressor starts with an appropriate lubrication condition. When the oil temperature is low, it can contain a significant amount of refrigerant, which can negatively impact the oil's lubricating properties. If the compressor starts while the oil is still contaminated with refrigerant, it can lead to inadequate lubrication, increased wear and tear, and potentially catastrophic failure of the compressor.

Therefore, this protection mechanism is vital to separate refrigerant from the oil before allowing the compressor to start, ensuring reliability and longevity in its operation. This careful monitoring and separation allow the compressor to run smoothly and efficiently, maximizing its performance and preventing damage.