The Belimo LMB24-3-S is a high-performance rotary actuator engineered for precise control in HVAC applications requiring 45 in-lb torque

For technicians performing a TXV valve replacement

Use a manometer to confirm the system is generating the required negative pressure to close the switch contacts

the P500472 is specifically calibrated for vent monitoring (L280) rather than the higher temperatures typically found at the burner manifold where flame rollout switches are located

Technicians should use a manometer to verify the static pressure before replacing the 1

Nordyne 667374R Blower Wheel 326058-755 The Belimo LMB24-3-S is aThe Nordyne 667374R Blower Wheel is a precision engineered 11x8 CW convex blower wheel designed for high static pressure applications in Intertherm, Miller, and Nordyne furnace systems. This centrifugal blower fan features a convex hub configuration and clockwise rotation (determined by viewing from the hub motor side), ensuring optimal airflow through the evaporator coil and heat exchanger. As the direct factory replacement for the legacy Nordyne