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eliminating field modification requirements
The proportional valve action ensures smooth modulation
Efficient Heat Exchange: Maintains 1075 RPM to provide the necessary airflow across refrigerant coils for optimal condenser thermal transfer
and differential pressure sensing for furnaces
the 621917 is the current OEM replacement for the discontinued 621917R
Texas Furnace(Consolidated Ind) 4035003 Limit Switch 321142-301 eliminating field modification requirementsFor service calls involving legacy hardware, the Texas Furnace 4035003 Limit Switch serves as the direct OEM L190 20F replacement for Consolidated Industries and Texas Furnace units. This high limit safety control is engineered with a set point of 190F and a 20F differential, ensuring the furnace high limit switch trips precisely to prevent heat exchanger damage or unsafe plenum temperatures. As a critical HVAC safety control, this bimetal disc sensor