Schneider Electric (Barber Colman) 2374-401 Relay Refrigerant check your specific unit wiring

check your specific unit wiring diagram to determine if it requires manual intervention after a trip event or if it resets automatically once temperatures drop below the 140°F threshold

System Stability: Specifically rated at 50VA to support the complex power requirements of Ultra boiler control logic

Standard HVAC rotation is determined by looking at the wheel from the hub/drive side

Shock Absorption: The 4-way flexing action prevents end float and minimizes stress on motor bearings during startup

Schneider Electric (Barber Colman) 2374-401 Relay Refrigerant check your specific unit wiringThe Schneider Electric 2374 401 Air Motion Relay, formerly under the Barber Colman brand, is a critical pneumatic component engineered for precise HVAC air pressure sensing and airflow monitoring. Designed to function as a differential pressure switch, this device triggers a pneumatic signal based on the presence or absence of air velocity. It operates with a minimum 0. 15" W. C. setpoint, making it sensitive enough to detect subtle changes in suction