Description
The Johnson Controls P77AAA-9451 is a heavy duty pressure controller that is used to adjust pressure points in HVAC systems with a high levels of accuracy. This small instrument effectively translates a 4-20 mA input signal into a corresponding output signal that can easily be implemented in different control loops. The P77AAA-9451 can also work stably under different environments with temperature between -20 and 70°C in degree. Used in HVAC systems, this pressure controller is one of the most essential components that affect the functionality of systems and comfort of occupants.
