Source 1 S1-THEC11NS Thermostat While this PTC can operate

While this PTC can operate the start winding independently in many RSIR configurations

it ensures the correct flame pattern and bridge-over for the main burner

Whether you are performing a propane conversion or replacing a fouled burner orifice

Key Benefits for Technicians: Universal Coil Compatibility: Operates on both 24 VAC/DC and 120-277 VAC

or corrosion are present

Source 1 S1-THEC11NS Thermostat While this PTC can operateThe York S1 THEC11NS is a commercial grade, non programmable digital thermostat designed for 1 heat 1 cool configurations in residential and light commercial applications. This low voltage control is engineered for compatibility with conventional single stage gas or electric furnaces, air conditioners, and millivolt heating systems. As a veteran preferred HVAC replacement part, it offers a reliable digital upgrade for older mechanical mercury bulb