Designated as the TFS4

it can be wired to replace a Single Pole Single Throw (SPST) unit by utilizing only one set of contacts

While functionally similar to other thermal links

The Honeywell 32004629-004 Bonnet Adapter Kit is a specialized interface solution designed for field-mounting Honeywell Q5020 Globe Valve Linkages onto non-Honeywell valves

Lennox 10G90 Control Limit 323613-751 Designated as the TFS4As an HVAC technician, you know that a failed limit switch isn't just a nuisance service callits a safety risk that indicates airflow or combustion issues. The Lennox 10G90 is a genuine OEM Lennox 180F control limit engineered specifically for high efficiency gas furnaces and commercial rooftop units. This SPST furnace limit switch (Part # 102610 02) is designed to monitor internal plenum temperatures, providing a critical safety interface by