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and HP972 series pneumatic humidistats
Whether you are performing a propane conversion or replacing a fouled burner orifice
if the motor is humming but not starting
or corrosion are present
Source 1 S1-THEC11NS Thermostat and HP972 series pneumatic humidistatsThe 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