Amana-Goodman 11177117 Pressure Switch

The Amana-Goodman 11177117 Pressure Switch part of a residential and light commercial HVAC system. This switch measures the pressure in the refrigerant system and shuts the system down if it reaches hazardous levels. It usually works by measuring the pressure of refrigerant moving in the system. When the pressure drops below a certain low pressure level, the switch will turn off the compressor. if pressure increases beyond high pressure limit, the switch will also open to prevent pressure build up in the system. This safety function is useful in the protection of the compressor, the condenser and other important parts of the HVAC system.