Lennox 79J89 Limit Switch Key Benefits for HVACR Contractors

Key Benefits for HVACR Contractors Durable Construction: Fabricated from 304 stainless steel to resist oxidation and scale buildup in hot or chilled water applications

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It is a vital furnace spark electrode that minimizes ignition delays and prevents lockout codes caused by incomplete combustion cycles

which allows for direct control of the load during commissioning or system diagnostics

always verify your regulator settings before installation

Lennox 79J89 Limit Switch Key Benefits for HVACR ContractorsThe Lennox 79J89 Limit Switch is a critical OEM replacement part designed for precise thermal regulation in Lennox residential and commercial furnaces. This 140 170F AUTO Limit Switch functions as a primary safety mechanism, monitoring internal plenum temperatures to prevent heat exchanger damage or unsafe operating conditions. Engineered with a 170F cut out temperature and a 140F cut in temperature, this automatic reset limit switch ensures the