Nordyne 661055R Orifice THPU32HP7Y The precision-machined outside diameter serves

The precision-machined outside diameter serves as a reliable reference surface

Durable Construction: Built with professional-grade materials to withstand the corrosive nature of flue gas and elevated thermal fluctuations

Smith SNA series models

How do I verify if the coil has failed

Whether you are performing a zone valve replacement or a new HVAC zone control installation

Nordyne 661055R Orifice THPU32HP7Y The precision-machined outside diameter servesThe Nordyne 661055R Orifice is a precision engineered #55 drill main burner orifice designed to maintain consistent manifold pressure and gas flow in high efficiency heating systems. As a veteran HVACR technician knows, precise gas metering is critical for achieving a clean blue flame and preventing incomplete combustion or sooting. This OEM main burner orifice serves as the direct replacement for the legacy part 661055, ensuring that gas velocity and