Johnson F62 Air Flow Switches
The F62 airflow switch detecs air flow or the absence of air flow by responding only to the velocity of air movement within a duct.
The contril can be wired to open on e circuit and close a second circuit (SPDT) for either signalling or interlock purposes.
Failure of air flow during normal operation of air handling system may cause over-heating, coil icing and other conditions that may be detrimental to the equipment.
Typical applications include make-up air systems, air cooling or heating processes and exhaust systems