Integral vent limiter simplifies installation by meeting safety standards for indoor venting without extra piping

providing the centrifugal force necessary for efficient combustion air or ventilation

The Bard 8402-154 Limit Switch is a critical safety component designed for high-performance HVAC systems

Diagnostic LED and Test Button: Facilitates rapid troubleshooting and burner circuit verification without compromising system water levels

Plenum-Rated Lead Wires: Meets UL standards for safety in overhead air handling spaces

Trane SWT1729 Limit Switch 322838-753 Integral vent limiter simplifies installationWhen you are troubleshooting a furnace that is tripping on high limit, you need a reliable Trane SWT1729 to ensure system safety and prevent heat exchanger damage. This OEM Trane limit switch is a critical safety component designed for air handlers and gas furnaces, specifically engineered to monitor internal plenum temperatures. As a veteran grade HVAC replacement part, it features an automatic reset function, meaning the switch opens the control