Honeywell S8910U Wiring Diagram. Check the wiring diagram furnished by the appliance manufacturer, if available, and compare. S8910u universal hot surface ignition moduleterminal. Honeywell Th5220d1003 Wiring Diagram Free Wiring Diagram from groover.sch.bme.hu The wiring labels are included to assure proper marking of the wires attached to the existing module. Turn thermostat up to call for […]