The Daikin-McQuay 6023719 Low Pressure Sensor is a monitoring component designed to detect refrigerant pressure levels in HVAC systems. It continuously senses low-side pressure and sends electrical signals to the control board when pressure falls below the specified operating range, allowing the system to initiate protective measures. Used in Daikin-McQuay chillers and air conditionin... https://www.partshnc.com/6023719-daikin-mcquay-low-pressure-sensor