Johnson Controls P70AA-119 Ammonia Pressure Switch 50-300 PSI Open Low

The Johnson Controls P70AA-119 Ammonia Pressure Switch is a strategic apparatus controls pressures in HVAC systems. This switch is meant to turn on when the pressure is below a certain low level and it works between 50 and 300 PSI. Pressure fluctuations in the ammonia system are observed. The switch opens when the pressure is below the set pressure and this informs the control system of the required action. This could include switching off alarms, starting shutdown processes, or indicating that the system needs some repair work to be done. It has several benefits: two of them are high mechanical durability and stable performance in commercial and industrial climate control systems.