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The disc is factory-installed to provide the equal percentage flow characteristic
Will this work with both Natural Gas and Liquid Propane units
the internal logic or relay has likely failed
offering precise fitment to reduce installation time for technicians
For technicians managing Venco damper parts
Trane SWT3937 Switch 319852-301 The disc is factory-installed toThe Trane SWT3937 is a precision engineered thermal limit switch designed for critical temperature regulation in HVAC and light commercial applications. This OEM thermal switch features a reliable 125F open and 95F close threshold, serving as a primary safety control to monitor airstream temperatures and prevent overheating conditions. Built with an SPST contact arrangement and an enclosed disc design, the SWT3937 ensures consistent performance with a
US$ 36.58
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