Lennox 45M66 Collar Assembly 322838-754 Key Benefits: Maximum Air Circulation:

Key Benefits: Maximum Air Circulation: The open wire mesh design prevents heat trapping

and Black for High) and check for proper 208-230V HVAC motor alignment to prevent premature wear on the blower wheel or housing

How do I verify if the 1173838 is compatible with my current HK42FZ017 or similar older revision

If you have verified that the line voltage is correct but the secondary output is below 24V

Key Benefits for Technicians: Refrigerant Flow Monitoring: Provides a clear visual confirmation of a full liquid line

Lennox 45M66 Collar Assembly 322838-754 Key Benefits: Maximum Air Circulation:The Lennox 45M66 Collar Assembly is an essential OEM replacement part designed specifically for high efficiency HVAC cabinet and ductwork transitions. This Right Hand Collar Assembly (part number LB 96380A) provides the structural interface required to maintain rigid connections at the unit discharge or return plenum, ensuring no static pressure loss at critical junction points. Manufactured to original Lennox HVAC equipment tolerances, the 45M66