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

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

This remote alarm indicator is compatible with both Fenwal smoke detectors and THD series electronic heat detectors

Replacing a degraded or saturated boiler insulation disk is vital for preventing heat loss and protecting the floor substrate from high-temperature exhaust exposure

Trane SWT1729 Limit Switch 322838-753 Plenum-Rated Lead Wires: Meets ULWhen 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