Description
The International Comfort Products 1398446 Sequencer manages the activation order of electric heating stages and blower operation during furnace startup and shutdown cycles. Through heat-responsive internal contacts, the part delays circuit involvement to allow electrical operations to energize in a controlled pattern rather than simultaneously. It is integrated into electric furnaces and air-handler HVAC systems, where staged heat distribution and airflow coordination are required for proper operating sequences. Controlled timing between electrical stages assists with steady heater involvement, reduces abrupt current demand across connected circuits, and promotes uniform temperature transition throughout electrically heated air-distribution systems.
