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this is a manual reset safety switch
Complete Hardware Loadout: Provided with a full assortment of ceramic bushings and insulators to handle most mounting requirements in one trip
High-Capacity Filtration: The 8-cubic-inch solid core provides advanced desiccant performance
Always inspect the vacuum lines for cracks before replacing the switch
Trane SWT2478 Switch this is a manual resetMaintenance of critical safety parameters in furnace combustion requires precise vacuum monitoring, which is exactly why the Trane SWT2478 is engineered as a high reliability SPNO furnace pressure switch. This single pole, normally open (SPNO) component is calibrated for specialized performance, featuring a nominal 1. 13" WC close setpoint and a 0. 94" WC open setpoint. Designed to verify inducer motor functionality and flue venting integrity, the
