
Start by identifying the sequencer terminals, typically marked as M1-M2 and H1-H2. These control the heating elements in staged intervals. A standard setup includes two sequencers, each linked to separate heating coils. Confirm the alignment with the model’s control board and ensure 24V signal lines are properly routed from the thermostat.
“Wiring Diagram and Component Connections for Intertherm Electric Furnace Models”








