{"product_id":"123966-aerco-boiler-and-water-heater-over-temp-switch-w-auto-reset","title":"123966 AERCO Boiler and Water Heater OVER TEMP SWITCH W\/ AUTO RESET","description":"\u003ch2\u003e123966 AERCO Boiler and Water Heater OVER TEMP SWITCH W\/ AUTO RESET\u003c\/h2\u003e\n\u003ch2\u003e\n\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cstrong\u003eNormal Stock Item in our Warehouse\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eAERCO 123966 is the OEM Over‑Temperature Switch with Auto Reset\u003c\/strong\u003e, a safety device designed to prevent overheating in AERCO boilers and water heaters. Grounded distributor data confirms its specifications, operating ranges, materials, and purpose. \u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"relative pb-6 w-full after:border-b after:border-stroke-300 after:w-full after:absolute after:mt-3\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e🔧 \u003cstrong\u003eCore Identity \u0026amp; Function\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 123966 \u003cstrong\u003eComponent:\u003c\/strong\u003e Over‑Temperature Switch (Auto Reset) \u003cstrong\u003eOEM:\u003c\/strong\u003e AERCO\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis switch monitors system temperature and \u003cstrong\u003eautomatically opens the safety circuit\u003c\/strong\u003e if water temperature exceeds its rated limit. Once temperature drops back into the safe range, the switch \u003cstrong\u003eresets itself without manual intervention\u003c\/strong\u003e, restoring normal operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts role is to prevent:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHeat‑exchanger damage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOver‑temperature lockouts\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSafety hazards caused by runaway heating\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003ePartsHnC confirms it is used to \u003cstrong\u003eprotect against heat‑related harm\u003c\/strong\u003e and is built for reliability in harsh boiler environments. \u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"relative pb-6 w-full after:border-b after:border-stroke-300 after:w-full after:absolute after:mt-3\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e📐 \u003cstrong\u003eTechnical Specifications (Grounded)\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e 0°F to 180°F \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ps-2\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePressure Rating:\u003c\/strong\u003e Up to 150 PSI \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ps-2\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e High‑grade stainless steel (corrosion‑resistant) \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ps-2\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eConnections:\u003c\/strong\u003e 1\" or 2\" NPT \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ps-2\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.47 lb \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ps-2\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eReset Type:\u003c\/strong\u003e Automatic (no manual reset required) \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eUsed in:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAERCO commercial boilers\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAERCO commercial water heaters\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eTypical service scenarios:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOver‑temperature faults\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSafety‑circuit failures\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReplacement of worn or drifting limit switches\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePreventive maintenance on high‑duty hydronic systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eAERCO 123966 Over‑Temperature Switch w\/ Auto Reset — Genuine OEM safety switch for AERCO boilers and water heaters. Rated for 0°F–180°F and up to 150 PSI, this stainless‑steel switch protects the system from overheating and automatically resets once temperatures return to safe levels. Ensures reliable, code‑compliant operation in demanding hydronic environments.\u003c\/span\u003e\u003c\/p\u003e","brand":"Neuco","offers":[{"title":"Default Title","offer_id":45558659645506,"sku":"123966","price":327.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/files\/Pic_large_a4caf841-7d6b-4087-954d-4a18bfb7992f.webp?v=1739516863","url":"https:\/\/hvacpartstore.com\/products\/123966-aerco-boiler-and-water-heater-over-temp-switch-w-auto-reset","provider":"HVACpartstore","version":"1.0","type":"link"}