{"product_id":"st9120c4057-honeywell-furnace-control-circuit-board","title":"ST9120C4057 | Honeywell Furnace Control Circuit Board","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e\u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eThe Honeywell ST9120C4057 is a furnace fan control circuit board designed for residential HVAC systems.\u003c\/span\u003e \u003cspan class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\"\u003eIt serves as the central control unit, managing essential functions such as blower operation, ignition sequencing, and safety monitoring by coordinating signals from various sensors and switches.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"height: 114px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\" style=\"width: 27.045%; text-align: left; height: 19.6px;\"\u003eCondition\u003c\/th\u003e\n\u003ctd class=\"text-left text-body1 py-10 desktop:w-[60%]\" style=\"width: 72.7856%; height: 19.6px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 25.6px;\"\u003e\n\u003cth class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\" style=\"width: 27.045%; text-align: left; height: 25.6px;\"\u003eBrand\u003c\/th\u003e\n\u003ctd class=\"text-left text-body1 py-10 desktop:w-[60%]\" style=\"width: 72.7856%; height: 25.6px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003eHoneywell\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"width: 27.045%; text-align: left; height: 19.6px;\"\u003eCategory\u003c\/th\u003e\n\u003ctd style=\"width: 72.7856%; height: 19.6px;\"\u003e\u003cspan\u003eHVAC Components\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"width: 27.045%; text-align: left; height: 19.6px;\"\u003ePart Number\u003c\/th\u003e\n\u003ctd style=\"width: 72.7856%; height: 19.6px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003eST9120C4057\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"width: 27.045%; text-align: left; height: 19.6px;\"\u003e\u003cspan\u003eSubcategory\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 72.7856%; height: 19.6px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003eFurnace Control Boards\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 10px;\"\u003e\n\u003cth style=\"width: 27.045%; text-align: left; height: 10px;\"\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 72.7856%; height: 10px;\"\u003e\u003cspan\u003e0.23 kgs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About ST9120C4057\u003c\/h4\u003e\n\u003cp\u003eThe Honeywell ST9120C4057 is a furnace fan control circuit board designed for residential HVAC systems. It serves as the central control unit, managing essential functions such as blower operation, ignition sequencing, and safety monitoring by coordinating signals from various sensors and switches. This board ensures efficient and reliable furnace performance and is compatible with a range of furnace models. It is known for its durability and ease of installation.\u003c\/p\u003e\n\u003ch4\u003eKey Features:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated Fan Control: Manages blower operation to ensure optimal airflow and comfort.\u003c\/li\u003e\n\u003cli\u003eIgnition Sequencing: Coordinates the ignition process for safe and efficient furnace startup.\u003c\/li\u003e\n\u003cli\u003eSafety Monitoring: Continuously monitors system safety switches and sensors to prevent malfunctions.\u003c\/li\u003e\n\u003cli\u003eDiagnostic LEDs: Provides visual indicators for system status and troubleshooting.\u003c\/li\u003e\n\u003cli\u003eCompact Design: Facilitates easy installation and integration into existing furnace systems.\u003c\/li\u003e\n\u003cli\u003eVoltage Compatibility: Operates on standard 24 VAC control voltage.\u003c\/li\u003e\n\u003cli\u003eWeight: Approximately 8 ounces (0.23 kg).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe ST9120C4057 offers dependable performance and is a suitable replacement for various Honeywell furnace control boards. Its design ensures compatibility with multiple furnace models, making it a reliable choice for maintaining or restoring efficient furnace operation.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":49105376116992,"sku":"ST9120C4057","price":404.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/s-l1600_77a72c00-932f-4dda-812e-5d07220eb8ab.webp?v=1785545801","url":"https:\/\/alotechparts.com\/products\/st9120c4057-honeywell-furnace-control-circuit-board","provider":"Alo Tech Solutions","version":"1.0","type":"link"}