The Bard HVAC 1804-0107BX A/R Low Pressure Control Assembly is an OEM replacement component designed to protect compatible Bard wall-mounted air conditioners and heat pump systems. It monitors refrigerant suction pressure and interrupts the control circuit when pressure falls below the specified threshold, helping prevent compressor damage caused by refrigerant loss or other system fa... https://www.partshnc.com/bard-hvac-1804-0107bx-a-r-low-pressure-control-assembly