{"product_id":"bohn-5709l-defrost-thermostat-3-wire-refrigeration","title":"Bohn 5709l Defrost Thermostat 3-wire Refrigeration","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BOHN 5709l is a defrost thermostat designed for use in refrigeration systems such as unit coolers and evaporator coils. It monitors coil temperature and controls the defrost cycle by opening and closing at set temperature thresholds, helping prevent ice buildup and maintain efficient system operation. The thermostat features a 3-wire lead configuration with a lead length of 17 inches and is built with a combination of plastic and stainless steel construction. It closes at 35 degrees F and opens at 55 degrees F, providing a reliable operating range for standard low-temperature refrigeration applications. This component is typically installed by refrigeration technicians and commercial HVAC-R service professionals.\u003c\/p\u003e\u003cp\u003eThe BOHN 5709l is suited for commercial and light-industrial refrigeration equipment where automatic defrost control is required. It is commonly installed on evaporator coil assemblies in walk-in coolers, reach-in cases, and unit cooler systems. The 3-wire lead design accommodates standard defrost control wiring configurations found in these applications. Its compact sensor body and stainless steel material make it appropriate for the wet, low-temperature environments typical of refrigeration coil compartments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOpens at 55 degrees F and closes at 35 degrees F for precise defrost cycle control\u003c\/li\u003e\n\u003cli\u003e3-wire lead configuration with 17-inch lead length for flexible installation routing\u003c\/li\u003e\n\u003cli\u003eStainless steel and plastic construction suited for cold, humid refrigeration environments\u003c\/li\u003e\n\u003cli\u003eCompact sensor body designed for mounting on evaporator coil assemblies\u003c\/li\u003e\n\u003cli\u003eOperates within a 2 degrees C close and 13 degrees C open temperature range\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement defrost thermostat for commercial refrigeration unit coolers and evaporator assemblies requiring a 3-wire defrost thermostat with the stated temperature ratings.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified refrigeration or HVAC-R technician. Disconnect and lock out power to the refrigeration system before removing or installing the thermostat. The sensor body should be secured firmly against the evaporator coil surface per the original equipment mounting location. Verify wiring connections match the existing 3-wire defrost circuit before restoring power.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Configuration\u003c\/strong\u003e: 3-Wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Length\u003c\/strong\u003e: 17 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Body Length\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosing Temperature\u003c\/strong\u003e: 35 degrees F (2 degrees C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpening Temperature\u003c\/strong\u003e: 55 degrees F (13 degrees C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Material\u003c\/strong\u003e: Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Black \/ Silver\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: BOHN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5709l\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BOHN","offers":[{"title":"Default Title","offer_id":51161775112498,"sku":"5709L","price":128.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/306259346.jpg?v=1778881397","url":"https:\/\/voomisupply.com\/products\/bohn-5709l-defrost-thermostat-3-wire-refrigeration","provider":"Voomi Supply","version":"1.0","type":"link"}