Lennox 31W19 Flue Transition 318423-701 ideal for signaling alarms or

ideal for signaling alarms or interlocks

As the direct 040-0163-01 replacement

Field technicians typically utilize this hard-shutoff TXV in residential and light commercial split systems to improve seasonal energy efficiency

this valve utilizes a solid wax hydraulic principle thermostat to maintain outlet temperatures within a tight +/- 3°F tolerance

Lennox 31W19 Flue Transition 318423-701 ideal for signaling alarms orThe Lennox 31W19 Flue Transition is a critical induced draft component engineered for high performance Lennox packaged HVAC systems. As an essential OEM replacement part, this flue exhaust transition manages the path of combustion gases from the heat exchanger to the external vent, preventing backdraft and ensuring safe equipment operation. Fabricated to strict factory tolerances, the 31W19 eliminates the alignment issues ????? associated with