Always inspect the vacuum lines for cracks before replacing the switch

Designed for heavy-duty HVACR environments

This #43 orifice is primarily used in Nordyne

this specific part is sized exclusively for 1/8 inch pilot tubing

Nordyne 632445R Pressure Switch Always inspect the vacuum linesFor field technicians and contractors managing residential HVAC units, the Nordyne 632445R Pressure Switch is the mandatory OEM replacement part for ensuring safe furnace inducer motor operation. This single pole single throw (SPST) switch is factory calibrated to a 1. 10" WC (water column) setpoint, critical for monitoring vacuum pressure within the combustion assembly. As the direct updated version of the 632445, it carries forward the same 1 4