Johnson Controls P20AA-244 Pressure Control Open Low Auto Reset 100-425 PSI 36" Capillary

The Johnson Control P20AA-244 is a pressure switch that is designed mainly for use with air conditioning systems. This small drawing is essential in terms of equipment safety and effectiveness to be used. When it reaches the pressure set at 100 psi and below, the switch is triggered usually in a manner that electricity supply to the compressor motor is switched off. This avoids losses arising from low refrigerant charge in the system. The pressure switch is designed such that when pressure goes above the maximum power of 425 psi, it is immediately reset to allow the provision of power. A 36" capillary tube joins the pressure sensor with the main switch body for possible installation within the AC system.