Trane SWT3031 Limit Switch R-407A this is the hinge component

this is the hinge component alone

Multi-Stage Compatibility: Engineered to control up to two stages of heating and cooling

it requires physical intervention to restart the burner following a low-water condition

Key Benefits Enhanced Efficiency: Precisely regulates R-410A flow to maximize cooling output and energy savings

While this part is primarily specified for the EnergyRite pool heater series

Trane SWT3031 Limit Switch R-407A this is the hinge componentThe Trane SWT3031 Limit Switch is a critical safety component engineered for HVAC furnace applications, specifically designed to monitor internal heat exchanger temperatures. This OEM Trane replacement part features a 7 inch insertion length, making it compatible with specific air handler and furnace configurations where precise thermal sensing is required. Operating as a normally closed SPST (Single Pole Single Throw) circuit, the switch is