Carrier 320711-303 Limit Shield 30067439-890 and a black indicator signifies

and a black indicator signifies the "Open" state

but you should verify your specific unit's wiring schematic to ensure proper low-voltage terminal alignment

this model typically includes a bezel and dial

If you are servicing a residential or light commercial air side unit

Carrier 320711-303 Limit Shield 30067439-890 and a black indicator signifiesThe 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