Schneider Electric (Barber Colman) 2252-250 Temperature Transmitter 30067439-890 Buzzing is typically caused by

Buzzing is typically caused by low voltage or debris between the plunger and the tube head

making it the standard choice for low water cut-off (LWCO) applications where clearance is restricted

Designed for secondary or auxiliary circuit management

representing the same OEM fan timer control unit

It is designed to slide onto the existing pilot valve tube of the Ranco assembly

Schneider Electric (Barber Colman) 2252-250 Temperature Transmitter 30067439-890 Buzzing is typically caused byThe Schneider Electric (Barber Colman) 2252 250 Temperature Transmitter is a precision engineered pneumatic temperature transmitter designed for direct acting proportional control in commercial HVACR environments. This high stability unit measures air or fluid temperatures and converts them into a standardized 3 to 15 psig output signal. With a calibrated 0 to 100 degree temperature range and a corresponding 100 degree span, it provides a reliable