Local flame sensor vs. remote... When setting up the Copeland Company White-Rodgers All-Spark, we need to indicate if we're using local or remote flame sensors. Local flame sensor is when the flame sensor and ignitor are one. Remote flame sensor is when the sensor is stand alone. This is all done with the White-Rodgers Connect app using near-field communication. This universal control 50D50U-843, replaces 1000 other part numbers. #heatingcontrol #hvacsystem #hvaclife #hvacparts #ignitionmodule #