Description
The Lennox 97H76 Damper Door Spring is a simple and essential component of your HVAC system. It is a spring device designed to modulate airflow in Lennox furnaces and possibly other makes of similar furnaces. The damper door is situated in the burner box and opens and shut to regulate the amount of air admitted into the combustion chamber. The spring also keeps constant tension so that the door opens wide enough for proper burner operation during heating cycles and then shuts tightly to seal the combustion chamber when the furnace is off.
