Trane SWT2478 Switch which restricts flow and leads

which restricts flow and leads to improper suction pressure levels

this is a manual reset safety switch

Always inspect the vacuum lines for cracks before replacing the switch

the gasket loses its ability to reseal effectively

Secure Installation: Integrated set screws provide a positive lock onto the timer dial to maintain scheduling accuracy

Trane SWT2478 Switch which restricts flow and leadsMaintenance 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