energy management

Designated as the TFS4

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

it features an oil-immersed motor for superior heat dissipation and extended service life

PO compatibility: Optimized for use with Polyolester (POE) oils and mineral oils without the risk of additive stripping

Lennox 10G90 Control Limit 323613-751 energy managementAs 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