Trane SWT2533 Pressure Switch Els PW 17895 The Lennox 76F73 Relay is

The Lennox 76F73 Relay is a heavy-duty

This OEM replacement sensor ensures that the electronic aquastat correctly manages burner cycling and high-limit safety cut-offs

and R406A models

thermostat input

because it is an external belt-type heater

Trane SWT2533 Pressure Switch Els PW 17895 The Lennox 76F73 Relay isThe Trane SWT2533 Pressure Switch is an essential OEM safety component designed for precise draft pressure monitoring in Trane and American Standard furnaces. This single pole, normally open switch is engineered to detect specific vacuum thresholds, ensuring the inducer motor is moving sufficient combustion air before ignition occurs. With a calibrated operating range of 1. 11 PF Open to 1. 29 PF Close, the SWT2533 prevents hazardous operation caused