Description
The Johnson Controls P74BA-1 Differential Pressure Control is an essentialdevice in HVAC systems and its function is to measure and control the differential pressures in a range of 8-70 PSI. This control employs an SPST switch configuration and an open-decremental control type. To support its functionality, it has an auto reset feature. The is most often used in HVAC systems for pressure differential control to enhance the durability of the system and its efficiency. Because of its construction and reliability, it is suitable for various applications where precise pressure regulation is required. The control has a capillary length of 36” which gives installation versatility to suit different system configurations.









