When using a screw compressor with an oil separator, how should the heater operate?

The correct answer states that the heater should shut on and off as needed during the operation of a screw compressor with an oil separator. This operation is essential for maintaining the correct temperature of the oil. Proper oil temperature ensures optimal lubrication and efficient operation of the compressor.

If the heater operates continuously, it may cause the oil to overheat, leading to potential breakdown and reduced oil effectiveness. Conversely, if the heater is only activated during specific times, such as startup or shutdown, it may not respond adequately to fluctuations in oil temperature during regular operation. Thus, a responsive approach of turning the heater on and off as needed allows for maintaining optimal temperatures, ensuring that the oil remains effective in lubricating and cooling the compressor while efficiently managing energy use.