{"product_id":"braemar-overtemp-switch-110-deg-auto-hx-ot1-sy621838","title":"Braemar Overtemp Switch 110 Deg Auto HX OT1","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThis Braemar overtemp switch is a crucial safety component for ducted gas heating systems, specifically designed to prevent overheating by tripping at 110 degrees. It's an auto-reset type, meaning it will reset itself once temperatures drop after a fault is cleared.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eAs any tech knows, keeping these safety limits in spec is non-negotiable for system longevity and homeowner safety, especially heading into a long winter season. Installing a genuine replacement ensures your heater's protective circuits are functioning as intended.\u003c\/p\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eBest For\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003eDucted gas heater service and maintenance.\u003c\/li\u003e\n\u003cli\u003eReplacement in compatible Braemar and Seeley heating units.\u003c\/li\u003e\n\u003cli\u003eEnsuring system safety and compliance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eCompatibility\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThis overtemp switch is designed for Braemar ducted gas heaters and can also be used in some Seeley systems that require the 110 Deg Auto HX OT1 switch, identified by part number 632605. If you're running a different model, check fittings and specs before ordering.\u003c\/p\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eFeatures\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003eGenuine Braemar overtemp switch for reliable operation.\u003c\/li\u003e\n\u003cli\u003ePre-set trip temperature of 110°C to protect heat exchangers.\u003c\/li\u003e\n\u003cli\u003eAuto-reset functionality, allowing the system to restart once temperature drops.\u003c\/li\u003e\n\u003cli\u003eSpecifically coded as HX OT1 for direct replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 16px; margin-bottom: 20px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"color: #007acc; border: 1px solid #e0e0e0; padding: 10px; text-align: left; background-color: #f5f5f5;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"color: #007acc; border: 1px solid #e0e0e0; padding: 10px; text-align: left; background-color: #f5f5f5;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eTrip Temperature\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e110°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eReset Type\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003ePart Identifier\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eHX OT1 (Seeley PN: 632605)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003e1 x Braemar Overtemp Switch 110 Deg Auto HX OT1 (SY621838)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eUsing It on the Job\u003c\/h2\u003e\n\u003col style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003eBefore beginning any work, ensure the main power supply to the heater is isolated and locked out to prevent accidental energisation.\u003c\/li\u003e\n\u003cli\u003eLocate the existing overtemp switch, usually mounted near the heat exchanger or within the burner compartment.\u003c\/li\u003e\n\u003cli\u003eCarefully disconnect the wiring from the old switch, making note of the orientation and connection points.\u003c\/li\u003e\n\u003cli\u003eUnmount the faulty switch. If it's secured with screws or clips, ensure you use the correct tools to avoid damage to the heater casing.\u003c\/li\u003e\n\u003cli\u003eInstall the new Braemar overtemp switch, ensuring it is securely fastened in its correct position.\u003c\/li\u003e\n\u003cli\u003eReconnect the wiring, double-checking all connections for tightness and correct polarity.\u003c\/li\u003e\n\u003cli\u003eRestore power to the heater and perform a functional test, monitoring for proper operation and ensuring the system does not trip the overtemp switch under normal operating conditions.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eLimitations \u0026amp; Safety Notes\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003eThis switch is designed for specific Braemar and Seeley ducted gas heating systems. Verify compatibility with your unit's model and original part number before installation.\u003c\/li\u003e\n\u003cli\u003eAlways ensure power is isolated and locked out before commencing any electrical work on HVAC systems.\u003c\/li\u003e\n\u003cli\u003eInstallation should only be performed by a qualified and licensed technician.\u003c\/li\u003e\n\u003cli\u003eFollow all manufacturer's instructions and relevant Australian safety standards during installation and testing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eTradie Pro Tip\u003c\/h2\u003e\n\u003cblockquote style=\"border-left: 4px solid #007acc; background-color: #f9f9f9; font-style: italic; padding: 15px; margin: 20px 0;\"\u003eAlways check for the root cause of an overtemp trip, not just replacing the switch. Common culprits are blocked filters, restricted airflow, or a faulty fan motor. Replacing the switch without fixing the underlying issue is a recipe for a callback.\u003c\/blockquote\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003ePair With\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003ePair this overtemp switch with other ducted gas heater spares like gas valves or control boards if performing a full system overhaul. Consider a digital multimeter for comprehensive diagnostic checks of electrical circuits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Automated FAQ Schema --\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What temperature does this overtemp switch trip at?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Braemar overtemp switch (SY621838) is designed to trip and shut down the heater at a temperature of 110\u0026#176;C. This is a crucial safety limit to prevent damage from overheating.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this switch an auto-reset type?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, this Braemar overtemp switch features auto-reset functionality. This means once the temperature within the heater drops below the trip point after a fault is cleared, the switch will automatically reset itself, allowing the heater to resume operation.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What systems is this switch compatible with?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This overtemp switch is primarily compatible with Braemar ducted gas heating systems, and also fits some Seeley models that use the HX OT1 (part number 632605) specification. Always verify compatibility with your specific heater model and existing part before ordering.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Braemar","offers":[{"title":"Default Title","offer_id":43660724731963,"sku":"SY621838","price":33.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0316\/7787\/4235\/files\/717_632605_1W_500x500_5bfb8239-bf5d-40ac-88d4-1ca351c32d53.png?v=1781670428","url":"https:\/\/www.hvacshop.com.au\/products\/braemar-overtemp-switch-110-deg-auto-hx-ot1-sy621838","provider":"HVAC Supply Shop","version":"1.0","type":"link"}