Trane ORF1406 Orifice 340155-7024 Is there a difference between

Is there a difference between the 0901755A and the 0901755A/U

Housed in a rugged NEMA 1 enclosure with an all-steel case

this unit provides the necessary RPM range and service factor to maintain system SEER2 ratings and reliable HVAC airflow performance

providing superior watertight and dust-tight protection for both indoor and outdoor installations

its primary function is to redirect internal cabinet air pressure away from the pilot assembly to prevent blow-outs

Trane ORF1406 Orifice 340155-7024 Is there a difference betweenNat Burner Orifice Trane ORF1406 Natural Gas Burner Orifice Genuine OEM Replacement Ensure reliable gas flow and optimal burner performance with the Trane ORF1406 Orifice, a genuine OEM natural gas burner orifice designed specifically for Trane heating systems. Also known as ORF01406, this precision engineered component regulates gas flow to maintain efficient combustion and safe operation. Key Features: OEM Part Number: ORF1406 (also listed as