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The McDonnell & Miller FS4-3RP-T (Part #114639) is a standard-setting liquid flow switch engineered for heavy-duty service in commercial HVAC and hydronic systems
due to the lower conductivity of the liquid
000-ohm sensitivity to ensure accurate detection in various water qualities
Common indicators include the furnace short cycling
York S1-024-25840-700 Contactor 323055-751 The McDonnell & Miller FS4-3RP-TThe York S1 024 25840 700 is an OEM 2 pole magnetic contactor engineered for heavy duty HVAC compressor control and motor switching. Supporting a 40 amp current rating and 1. 0 inductive load, this electrical component is specifically designed for 24V control circuits, ensuring precise actuation of high draw system loads. As the direct replacement for S1 024 25840 000, it maintains original equipment standards for form factor and terminal alignment,