Lennox 74W71 Manifold 319825-402 ensure the mating surfaces are

ensure the mating surfaces are clear of old sealant to maintain the pressure differential required by the draft inducer motor

this 2-pole fan relay utilizes a 110/120V AC coil to effectively manage high-voltage circuits in air handlers and furnaces

The 13-511-B15 is rated for saturated steam service up to 250°F (121°C)

Common Questions Is the Teflon seal included with this valve kit

this furnace ignitor is critical for maintaining the sequence of operation in Carrier

Lennox 74W71 Manifold 319825-402 ensure the mating surfaces areThe Lennox 74W71 Gas Manifold (OEM part 103087 02) is a precision engineered component designed for high efficiency fuel distribution in Lennox gas furnaces and select commercial rooftop units. As a direct fit HVAC replacement part, it ensures balanced gas flow to the burner assembly, mitigating pressure fluctuations that cause combustion instability and resonance noise. Constructed from aluminized steel, this manifold resists the high heat corrosion