Trane SWT3937 Switch 319852-301 Proper installation of this gas

Proper installation of this gas burner tube involves verifying the screw-neck gasket integrity to prevent bypass leakage

Precision Control: Calibrated for 160°F maximum temperature to maintain consistent hot water supply and tank protection

this specific model is designed and ASME Section IV certified for hot water heating boilers and hydronic systems only

Its rigid aluminum construction ensures vibration-free operation under high RPMs

Key Benefits: Factory-Authorized Fit: The Carrier HC43SQ116 is an exact HVAC OEM part

Trane SWT3937 Switch 319852-301 Proper installation of this gasThe 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