Lennox 76W34 Limit Freon Lead-Free Construction: Complies with low-lead

Lead-Free Construction: Complies with low-lead plumbing mandates for potable and non-potable heating system configurations

Interchangeable Design: Serves as a 100% functional match for the 10H11 sheave commonly found in Lennox equipment

Key Benefits Direct OEM Replacement: Seamlessly replaces discontinued part 9004028105 without requiring complex manifold modifications

Industrial Strength: Built to withstand the high-temperature environment found within modern heat exchanger cabinets

Lennox 76W34 Limit Freon Lead-Free Construction: Complies with low-leadThe Lennox 76W34 Limit Switch is a high precision furnace high limit safety control engineered for Lennox HVAC systems. As a critical genuine OEM replacement part (also identified as Lennox 102610 01), this component features a factory set 200F limit to protect the heat exchanger from thermal stress. When supply air temperatures exceed the safe threshold, the open on rise mechanism interrupts the burner circuit, preventing system damage and ensuring