this wheel is specifically designed with a 1/2" bore

significantly reducing its ability to hold water and humidify the air

which prevents the armature from seating properly (causing overheating)

The HK35AA008 is strictly for 230V control circuits (typically 60Hz units)

For technicians performing furnace repair or routine service

Reznor 193811 Pressure Switch 326058-758 this wheel is specifically designedThe Reznor 193811 Pressure Switch is a critical safety component engineered for precision monitoring of combustion air and venting pressures in commercial and industrial heating systems. As a genuine Reznor OEM pressure switch, it features a Single Pole Double Throw (SPDT) configuration, allowing for versatile control of both normally open and normally closed circuits depending on the system's differential requirements. This specific model is equipped