Johnson Controls P70AA-118C Single Pole High Pressure/Condenser Fan Cycling Control

The Johnson Controls P70AA-118C High Pressure/Condenser Fan Cycling Control is a pressure-dependent component used to regulate the operation of the condenser fans depending on the pressure in the system. It operates on an internal pressure-sensing diaphragm that opens or closes the SPST switch in a 100-400 PSIG range with a 1/4-inch external flare connector to measure refrigerant pressure in operation in air conditioning and refrigeration HVAC systems. It is mounted to the refrigerant pressure line, whereby the connector is connected to the system piping and the electrical terminals are connected to the fan control circuit.