Trane SWT4036 Door Switch 320788-702 This HVAC replacement contactor is

This HVAC replacement contactor is optimized for standard 24-volt control circuits

whereas this is an automatic furnace limit designed for temperature regulation

making it a staple for commercial boiler feeds and industrial heating loops

External capacitors are not required for this motor type

This two-way forward acting valve is a standard for contractors managing industrial heat exchangers and commercial cooling systems where reliable flow regulation based on thermal load is critical

Trane SWT4036 Door Switch 320788-702 This HVAC replacement contactor isThe Trane SWT4036 is a professional grade SPST 16A Door Switch engineered for high reliability circuit interruption in HVACR service panels, blower compartments, and electrical enclosures. This OEM Trane replacement part serves as a critical safety interlock, ensuring that power is cut to internal components when access panels are removed for maintenance or inspection. Rated for up to 16 amps at standard service voltages, the SWT4036 door switch