you must verify the frame size

As a 7" gas vent damper

As the primary logic controller

Repeated tripping usually indicates a system-wide airflow restriction

and pump systems where standard controls fail due to mechanical stress

Schneider Electric (Barber Colman) 2252-251 Temperature Transmitter Els PW 17895 you must verify the frameThe Schneider Electric (Barber Colman) 2252 251 is a high precision pneumatic temperature transmitter engineered for heavy duty commercial HVAC applications. Featuring a 20 foot averaging element, this "one pipe" device is specifically designed to eliminate inaccuracies caused by air stratification in large supply or return air ducts. It operates on a 3 to 15 psig output signal, providing a fixed 100 degree span over a 0 to 100F temperature range. The