maintaining factory performance standards

For enhanced circuit protection

while moving it outward increases the travel distance

If the switch is open under normal operating temperatures without a blockage

Lennox 39H24 Damper Coupler maintaining factory performance standardsThe Lennox 39H24 Damper Coupler Left is a critical genuine OEM replacement part engineered for precise airflow management in commercial and residential Lennox HVAC systems. As a veteran technician knows, maintaining the integrity of the linkage between the damper actuator and the louver blades is essential for pressure control and ventilation efficiency. This left hand specific coupler is designed to eliminate slippage and ensure responsive adjustment