If your existing manifold is 1/2"

the white wire serves as the common for all primary voltages

this valve provides the flow control and access reliability necessary for accurate HVAC pressure monitoring and automated system diagnostics

this motor requires a 5 MFD / 370 VAC run capacitor

Universal Compatibility: Facilitates seamless integration between LF series actuators and various third-party damper shafts

Carrier 320711-303 Limit Shield 320720-756 If your existing manifold isThe Carrier 320711 303 Limit Shield is a critical OEM component designed to protect the high limit switch from direct flame impingement and excessive heat radiation within the furnace heat exchanger assembly. Engineered for precise fitment in Carrier, Bryant, and Payne gas furnaces, this shield ensures systemic integrity by preventing premature limit switch tripping or thermal fatigue. It serves as a thermal barrier, maintaining the necessary