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Thermal Protection: Built-in automatic reset thermal overload prevents winding failure during restricted airflow conditions
it is critical to wrap the valve body with a wet rag or use a heat-blocking putty to prevent damaging the internal seals while brazing the 1 5/8" lines
Broad Compatibility: Serves as a direct technical cross for S1-H22J443DBEA
eliminating the need for field rewiring
providing accurate modulation with approximately 120 steps of control
Lennox 25W71 Gasket 326058-757 Thermal Protection: Built-in automatic resetThe Lennox 25W71 Gasket is a critical OEM replacement part designed specifically for sealing the collector box cover in high efficiency Lennox furnaces. As a veteran tech knows, a compromised seal at the secondary heat exchanger leads to pressure switch trips and dangerous flue gas leakage. This precision engineered furnace collector box gasket (also indexed under 100742 01) ensures an airtight, negative pressure environment required for the draft
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