{"product_id":"l140-40f-nordyne-limit-switch-626619","title":"626619 Nordyne Auto Limit Switch","description":"\u003ch1\u003e626619 Nordyne Auto Limit Switch\u003c\/h1\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe 626619 is an OEM auto-reset auxiliary limit switch for Nordyne and Intertherm gas furnaces. It safeguards the heat exchanger by opening its internal contacts at 140 °F and closing them at 100 °F, providing reliable temperature regulation and system protection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTemperature close point: 100 °F (38 °C)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTemperature open point: 140 °F (60 °C)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSwitch type: Normally closed auto-reset limit\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eElectrical rating: 1 A @ 120 VAC\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTerminals: Two 1\/4 inch quick-connect spade connectors\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHousing: Steel enclosure with bimetallic sensing element\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOperating ambient: –40 °F to 150 °F\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWeight: 3.2 oz\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAuxiliary limit switch, L140-40F. Size T-O-D36TX11 or INT01EL-6833.\u003c\/p\u003e\n\u003cp\u003eReplaces 626279, 626472 \u0026amp; 626472R.\u003c\/p\u003e\n\u003ch2\u003eCross-Reference Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReplaces Nordyne 626472, 626472R, and 626279\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAlso sold as 626619R\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for Nordyne and Intertherm single-stage gas furnaces (MG1E series models 056, 070, 077, 090) and packaged HVAC units that use an auxiliary limit switch. Always confirm the part number on the furnace’s data plate or service manual before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eTechnician Notes\u003c\/h2\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCut power to the furnace; lock out\/tag out all line-voltage and 24 VAC circuits.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRemove the access panel and locate the existing limit switch.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePhotograph or label wiring to preserve terminal identification.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUnscrew the mounting bracket and disconnect both spade terminals.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInstall the new 626619 switch in the same orientation; torque mounting screws snugly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReattach wiring per your reference photos, ensuring tight, corrosion-free connections.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRestore power and observe normal operation: the switch should close at 100 °F and open at 140 °F.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIf the switch trips out of sequence, verify airflow, venting, and proper sizing of the heat exchanger before replacing components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Quinn","offers":[{"title":"Default Title","offer_id":13173328835,"sku":"626619","price":16.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/products\/l140-40f-nordyne-limit-switch-626472r-8.jpeg?v=1566072920","url":"https:\/\/hvacpartstore.com\/products\/l140-40f-nordyne-limit-switch-626619","provider":"HVACpartstore","version":"1.0","type":"link"}