White-Rodgers uses color-coded leads where the black lead is common relative to the transformer winding for the primary side

0 SCFH bleed rate for accurate one-pipe control

Does this unit require a secondary fuse

and spring) and a durable bonnet O-ring

An "OL" or infinite reading indicates an open winding that requires immediate replacement

Reznor 42089 Pilot Orifice White-Rodgers uses color-coded leads whereThe Reznor 42089 Pilot Orifice is a high precision HVAC replacement part specifically engineered for Liquid Propane (LP) gas fired heating systems. Designed for use in commercial and industrial Reznor unit heaters, this LP Pilot Orifice regulates the critical delivery of fuel to the pilot burner assembly. Its calibrated opening ensures a stable pilot flame, which is essential for consistent thermocouple heating and reliable main burner ignition. Using