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As a veteran-grade HVAC furnace part
While designed for Secop/Danfoss specifications
The gas-filled
this component is frequently used for managing high-current loads like blower motors and condenser fans through low-voltage thermostat circuits
OEM Armstrong parts include the necessary set screw
Lochinvar 100170641 Limit Switch 100170641 Freon As a veteran-grade HVAC furnaceThe Lochinvar 100170641 Limit Switch is a critical safety component designed for high performance hydronic systems, serving as the direct OEM replacement for the obsolete TST30010. Engineered with an operating range of 30 210F, this auto reset high limit switch monitors internal water temperatures to prevent catastrophic overheating in Lochinvar Copper Fin II boilers and pool heaters. When temperatures exceed the 210F threshold, the switch opens the
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