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specifically compatible with models ranging from PF1MNC049000AAAA to PF4MNB061T00AAAA
this unit is versatile and supports conventional 1H/1C systems as well as heat pump applications by configuring the system switches during installation
preventing the common "squirrel cage" scraping noises and vibration-induced wear that often plague aftermarket alternatives
Replacing a failing assembly often resolves drafting errors and "no-heat" calls
Lennox 79L57 Orifice 320788-702 specifically compatible with models rangingThe Lennox 79L57 is a critical Natural Gas Burner Orifice engineered specifically for high efficiency Lennox gas furnaces and heating units. This genuine OEM replacement part is precision machined to deliver an exact BTU output by regulating the volumetric flow of natural gas to the burner assembly. Using a Lennox 79L57 Orifice ensures your manifold pressure aligns with factory specifications, preventing issues like incomplete combustion, soot
US$ 140.00
US$ 742.50
US$ 50.00