{"product_id":"heatcraft-7075819-defrost-termination-fan-delay-switch-3-wire","title":"Heatcraft 7075819 Defrost Termination Fan Delay Switch 3-Wire","description":"\u003ch3\u003e\u003cstrong\u003eProduct description\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe Heatcraft 7075819 is a genuine OEM 3-wire defrost termination and fan delay switch used in commercial evaporator coil assemblies. This Klixon-type termination switch mounts directly onto 3\/8\" OD refrigerant tubing via its spring-tension mounting clip, monitoring coil temperature to control both the end of the defrost cycle and the delay before the evaporator fans resume operation. The switch is factory-calibrated to open at 50 degrees F and close at 2 degrees F, ensuring the fans only restart once the coil has returned to a sufficiently cold temperature, preventing warm, moist air from being blown into the refrigerated space after a defrost cycle. It is supplied with three 17\" color-coded leads (blue, red, and black) for straightforward integration into standard 3-wire defrost\/fan delay wiring diagrams, and is a widely used component across Heatcraft, Bohn, and Larkin evaporator coil systems.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eProduct highlights\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Function Control:\u003c\/strong\u003e Manages both defrost cycle termination and fan delay from a single switch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Factory Calibration:\u003c\/strong\u003e Opens at 50 degrees F and closes at 2 degrees F for consistent, repeatable defrost cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/8\" Tube Mount Clip:\u003c\/strong\u003e Spring-tension clip snaps directly onto standard refrigerant tubing for accurate coil temperature sensing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor-Coded 3-Wire Leads:\u003c\/strong\u003e 17\" blue, red, and black leads simplify wiring to existing defrost control circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide OEM Compatibility:\u003c\/strong\u003e Used across Heatcraft, Bohn, and Larkin walk-in cooler and freezer evaporator units.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Heatcraft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 7075819\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Defrost Termination \/ Fan Delay Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch Type:\u003c\/strong\u003e Klixon-Type Termination Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e 3-Wire, 17\" Leads (Blue, Red, Black)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen Temperature:\u003c\/strong\u003e 50 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClose Temperature:\u003c\/strong\u003e 2 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Spring-Tension Clip for 3\/8\" OD Tubing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eDirect replacement models\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eHeatcraft 7075819, 5709L, H50892\u003c\/p\u003e\u003cp\u003eYou will receive the same product or an OEM-Equivalent that meets the highest standard of the OEM with warranty that will be a direct-fit. Designed in the USA with superior quality to the OEM.\u003c\/p\u003e","brand":"Heatcraft","offers":[{"title":"Default Title","offer_id":48152086347941,"sku":"7075819","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/4743\/4661\/files\/Acaf6736a24f1401cbbcc192363eeec8fk.webp?v=1786767086","url":"https:\/\/aepn.co\/products\/heatcraft-7075819-defrost-termination-fan-delay-switch-3-wire","provider":"AEPN - All Equipment Parts Network","version":"1.0","type":"link"}