Lennox 71W27 Air Inlet Collar 319848-301 It is not designed for

It is not designed for zero-pressure or gravity-feed systems

When refrigerant pressures exceed this safety limit

and baseboard radiation where precise fluid management is required

making it a critical component for radiant floor heating

the valve will typically fail in the closed position

Lennox 71W27 Air Inlet Collar 319848-301 It is not designed forThe Lennox 71W27 is a precision engineered furnace air inlet collar designed for seamless integration with high efficiency residential and light commercial HVAC units. This OEM 614169 01 air inlet gasket assembly serves as the critical transition point between external ductwork and the equipment's air intake section, ensuring a rigid and reliable connection. By facilitating a secure duct to unit connection, the 71W27 minimizes energy robbing air