allowing the relay to close or open two independent circuits concurrently when the 24V coil is energized

Industrial Build Quality: Constructed to withstand high-cycle thermal environments common in residential gas furnaces

It is standard field practice to replace the insert when the pressure drop reaches 1 kPa (10 mbar) or at least once per year during routine gas system maintenance

maintaining phase balance and system efficiency

By adhering to IP67 protection standards when properly installed

Trane SWT1403 Pressure Switch Els PW 17895 allowing the relay to closeAs a seasoned technician, you know that a reliable Trane SWT1403 Pressure Switch is the first line of defense against compressor slugging and evaporator freeze ups. This genuine OEM Trane replacement part, also identified by the updated manufacturer number SWT01403, is a high precision low pressure control switch designed for critical monitoring in residential and commercial HVAC systems. Operating with a calibrated 7 22# setpoint, this switch is