Johnson Controls D-3244-4 Damper Actuator Refrigerant this 170-200F furnace limit switch

this 170-200F furnace limit switch is the primary replacement part to ensure the system remains protected against overheating while maintaining consistent air distribution cycles

What mounting configuration is required

It provides a high-capacity flow of 150

By detecting restricted airflow or flue spillage

Johnson Controls D-3244-4 Damper Actuator Refrigerant this 170-200F furnace limit switchThe Johnson Controls D 3244 4 Damper Actuator is a heavy duty pneumatic piston actuator engineered for high torque applications in commercial HVAC systems. This swivel mounted pneumatic actuator utilizes a robust 23. 4 sq. in. diaphragm to provide proportional control for medium to large sized dampers and fan vanes. With a standard 8 13 psi spring range and a generous 4 inch stroke, the D 3244 4 delivers consistent positioning accuracy under varying