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The solid copper ODF solder connections ensure leak-proof integration during brazing
Confirming the model and serial number prefix is recommended to ensure seamless duct and vent integration on 48-series equipment
-40 to 160°F) to ensure accurate visual feedback of the 3-15 psig signal
Enhanced Flame Sensing: Advanced flame rectification circuitry prevents false signals and ensures safe operation
Lennox 17J65 Orifice 326010-701 The solid copper ODF solderThe Lennox 17J65 Natural Gas Orifice (Part Number LB 69645) is a precision engineered heating component designed specifically for secondary burner regulation in residential furnaces. With a drill size specification of 0. 0935, this OEM Lennox replacement part ensures the exact volumetric flow rate required for efficient combustion and peak AFUE ratings. As a veteran technician knows, maintaining the correct manifold pressure depends entirely on the