Johnson Controls P47AA-1 Pressure Switch 0-15 PSI Open-High SPDT

The Johnson Controls P47AA-1 Pressure Switch is an essential and fundamental part in the HVAC systems used to control and measure pressure. It’s of SPDT contact type and uni-directional and is used for sensing pressure change in liquids and gases pressures varying from 0-15psi. Designed in a robust metallic casing it has the reliability to work well even in impossible situations. This pressure pick-up switch is mainly used in the air conditioning systems, refrigeration and heat pump systems. It works based on pressure which will control equipment like compressor turn on or turn off or also shutdown to avoid situations like overpressure.