Question 114Refrigeration & AC - 1st Asst/Chief

The correct answer is D) at the suction side of the compressor. The low pressure cutout switch is designed to protect the compressor from operating under low suction pressure conditions, which could damage the compressor. By connecting the sensing line to the suction side of the compressor, the switch can accurately monitor the suction pressure and shut off the compressor if the pressure drops below a safe level. The other options are incorrect because: A) the receiver outlet is not an appropriate location to monitor suction pressure, B) the discharge side of the compressor would not provide an accurate reading of suction pressure, and C) the inlet side of the receiver is also not the correct location to sense suction pressure.