Description
Carrier HK02ZB074 Low Pressure Switch is a refrigerant control component used to monitor suction-side pressure in cooling equipment. In HVAC systems, it is mounted on the refrigerant circuit where it protect the compressor during operation by detecting pressure drop caused by factors such as low refrigerant charge or restricted flow. When pressure is below the set limit, the switch opens the control circuit to stop compressor operation and resumes normal operation once pressure recover. It help prevent compressor damage, supports stable refrigerant circulation, and maintains system operation in residential and light commercial equipment.
