Trane SWT1999 Pressure Switch Els PW 17895 Smith parts ensures that the

Smith parts ensures that the electrical resistance and mounting clearances meet original manufacturer tolerances for Lochinvar heating systems

Precise Ignition Geometry: The 90-degree left-hand hood directs fire accurately for rapid main burner crossover and flame sensor feedback

ensuring terminal alignment and mounting hole synchronization

White is 120V

Is this restrictor suitable for outdoor use

Trane SWT1999 Pressure Switch Els PW 17895 Smith parts ensures that theThe Trane SWT1999 is a critical SPDT differential pressure switch engineered for precision monitoring in residential and commercial HVAC applications. As an OEM Trane replacement part, this single pole double throw switch maintains system safety by detecting pressure variances across heat exchangers and inducer assemblies. Operating on a 0. 43 PSI set point, the SWT1999 ensures the inducer motor establishes proper draft before ignition, effectively