Engineered for broad compatibility

As a 210F CO AUTO Limit Switch

If power is interrupted at any point during the timing cycle

Frequent tripping usually indicates an airflow restriction rather than a switch failure

Schneider Electric (Barber Colman) 22-021 Mounting Kit Engineered for broad compatibilityThe Schneider Electric 22 021 Mounting Kit (formerly Barber Colman) is a heavy duty universal wall mounting kit engineered for securing pneumatic thermostats and legacy HVAC controllers in commercial environments. Built to facilitate the installation of the Wall Box Mounting Plate, this kit provides vibration resistant mounting for sensitive pneumatic sensing equipment. For technicians retrofitting older Barber Colman systems, the 22 021 ensures