Nordyne 632443R Pressure Switch Common Questions What causes a

Common Questions What causes a limit switch like the HH12ZB220 to trip frequently

Does this sensor require a specific orientation when mounting

Its robust construction ensures consistent thermal cutoff accuracy

For contractors servicing SST

Standard oils often lack the thermal rating required for the high-heat exhaust environment of a power venter

Nordyne 632443R Pressure Switch Common Questions What causes aThe Nordyne 632443R is a critical OEM replacement pressure switch designed for induced draft furnaces. Engineered to monitor the differential pressure between the draft inducer motor and the flue, this SPST (Single Pole Single Throw) switch is factory calibrated to a precise 0. 85" WC (Water Column) trip point. It features a 1 4" barbed connection for standard pneumatic tubing and two terminal electrical contacts for direct furnace control board