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and LB-74940A
OEM Compatibility: Specifically engineered for York Millennium air-cooled chillers and corresponding HVAC control enclosures
Does the 10-617-05 require specific mounting orientation
As a direct identical replacement for 195B0428
This SKU typically refers to the mounting plate assembly itself
Lennox 17W11 Defrost Thermostat 319847-401 and LB-74940AThe Lennox 17W11 Defrost Thermostat is a critical OEM replacement part designed to regulate the defrost cycle in high efficiency heat pump systems. Engineered for precise temperature monitoring, this Lennox L60 31F sensor prevents seasonal ice accumulation on the outdoor evaporator coil, ensuring consistent heat transfer and protecting the HVAC compressor from liquid slugging. As an SPST switch, it operates on a fixed temperature differential,