{"product_id":"honeywell-st9120u1011-fan-timer-control-trusted-supplier","title":"ST9120U1011 | Honeywell Universal Electronic Fan Timer Control Board for Gas Furnace Blower and Fan Sequencing","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"474\" data-start=\"21\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe Honeywell ST9120U1011 is a universal electronic fan timer control board designed to manage combustion blower and circulating fan operation in gas warm air furnace systems. This module provides timed control for heating and cooling fan delays while supporting optional humidifier and electronic air cleaner connections. The ST9120U1011 ensures stable sequencing performance and compatibility across multiple furnace platforms.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-end=\"474\" data-start=\"21\"\u003e \u003c\/p\u003e\n\u003cp data-end=\"474\" data-start=\"21\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHVAC Controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eST9120U1011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFan Timer Control Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUniversal Electronic Fan Timer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Voltage Requirements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18–30 VAC, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFan Motor Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCirculating fan up to two speeds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeating Delay On\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdjustable: 30 or 60 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeating Delay Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdjustable: 60, 100, 140, or 180 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling Delay On\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdjustable: 4 or 30 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling Delay Off\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFixed: 30 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccessory Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHUM and EAC terminals included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFuse Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReplaceable onboard fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to +79°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.5\"D × 7.6\"W × 3.5\"H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.98 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About \u003cmeta charset=\"utf-8\"\u003eST9120U1011\u003c\/h4\u003e\n\u003cp data-end=\"1127\" data-start=\"477\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe ST9120U1011 is a Honeywell universal fan timer module built as a central control board for blower and circulating fan management in gas heating appliances. It is designed for broad replacement compatibility, covering multiple legacy Honeywell fan timer series to simplify service and inventory needs. The board includes configurable timing controls through onboard DIP switches, allowing field adjustment of heat and cool fan delay settings. It also supports accessory integration through dedicated terminals for electronic air cleaners and humidifiers, providing expanded HVAC system control options.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2199\" data-start=\"1261\"\u003e\n\u003cli data-end=\"1387\" data-start=\"1261\"\u003e\n\u003cp data-end=\"1387\" data-start=\"1263\"\u003eUniversal Fan Timer Control Board: Integrates combustion blower and circulating fan operation in gas furnace applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1509\" data-start=\"1388\"\u003e\n\u003cp data-end=\"1509\" data-start=\"1390\"\u003eMulti-Model Replacement Capability: Designed to replace numerous Honeywell ST9120, ST9101, ST9141, and ST9160 boards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1633\" data-start=\"1510\"\u003e\n\u003cp data-end=\"1633\" data-start=\"1512\"\u003eAdjustable Heat and Cool Fan Delays: Field-selectable delay-on and delay-off settings through DIP switch configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1739\" data-start=\"1634\"\u003e\n\u003cp data-end=\"1739\" data-start=\"1636\"\u003eLED Diagnostic System Indicator: Provides onboard system status feedback for troubleshooting support.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1859\" data-start=\"1740\"\u003e\n\u003cp data-end=\"1859\" data-start=\"1742\"\u003eHUM and EAC Accessory Connections: Includes terminal outputs for humidifier and electronic air cleaner integration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1974\" data-start=\"1860\"\u003e\n\u003cp data-end=\"1974\" data-start=\"1862\"\u003eTwo-Speed Circulating Fan Support: Controls circulating fan demand operation with up to two selectable speeds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2085\" data-start=\"1975\"\u003e\n\u003cp data-end=\"2085\" data-start=\"1977\"\u003eReplaceable Fuse Protection: Equipped with an onboard serviceable fuse for improved electrical protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2199\" data-start=\"2086\"\u003e\n\u003cp data-end=\"2199\" data-start=\"2088\"\u003eContinuous Circulation Option: Supports optional continuous low-speed indoor air circulation when configured.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2354\" data-start=\"2201\"\u003eThe ST9120U1011 delivers the reliability and precision required for furnace blower sequencing and fan timing control in HVAC heating and cooling systems.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":51105625178410,"sku":"ST9120U1011","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/s-l1600_7aac9ed1-2f3f-495b-9d09-7e70f3542757.webp?v=1769939601","url":"https:\/\/iqelectro.com\/products\/honeywell-st9120u1011-fan-timer-control-trusted-supplier","provider":"IQElectro","version":"1.0","type":"link"}