For those needing a 3-inch damper actuator with integrated bracketry

which prevent the ignition sequence if airflow is inadequate

Bypassing a blocked vent safety switch can lead to fire hazards or toxic gas exposure

For service technicians and mechanical contractors

Both part numbers represent the same 5-ton Lennox TXV with 3/8" x 1/2" ODF connections

Belimo LF24 Actuator Refrigerant For those needing a 3-inchThe Belimo LF24 Actuator is a rugged, 24V AC DC spring return damper actuator engineered for reliable on off control in HVAC systems. Delivering 35 in lb torque, this unit is designed for dampers up to approximately 8. 5 square feet, ensuring positive shut off and fail safe operation during power loss. As a direct replacement for the MA 7103, the LF24 features a universal power supply and a simplified mounting bracket that reduces installation time in