{"product_id":"s87d1012-honeywell-direct-spark-ignition-dsi-control-module","title":"S87D1012 | Honeywell Direct Spark Ignition (DSI) Control Module","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"500\" data-start=\"143\"\u003eThe Honeywell S87D1012 is a direct spark ignition (DSI) control module designed to manage gas burner ignition and safety sequences. It generates high-voltage potential for main burner ignition, monitors flame presence, and provides automatic lockout protection if ignition fails within 11 seconds.\u003c\/p\u003e\n\u003ch3 data-end=\"534\" data-start=\"502\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 99.964%; height: 450.8px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eHVAC Controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eS87D1012\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eIgnition Control Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eIgnition Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eDirect Spark Ignition (DSI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eLockout Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003e11 Seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eControl Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eIgnition Sequence and Gas Control Operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eIgnition Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eHigh Voltage Spark Output (Generated by Module)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eReset Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eManual Reset via Thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eCompatible Systems\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eGas Burners, Furnaces, and Boilers with Direct Spark Ignition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 39.2px;\"\u003e\u003cstrong\u003eGas Control Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 39.2px;\"\u003eModules (Except S87C) for Gas Controls Rated 2.0A or Less\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eTrial for Ignition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eOne Trial Before Lockout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003ePower Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eLow Voltage AC (from Furnace Control Circuit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eFlame Detection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eFlame Rectification Sensing Circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eProtection Feature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eAutomatic Lockout on Ignition Failure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eEnclosure Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eCompact, Surface-Mount Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eControls Ignition, Gas Valve, and Flame Supervision\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eOperating Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003eHVAC Equipment, Heating Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003ePanel or Chassis Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 27.0576%; height: 19.6px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8092%; height: 19.6px;\"\u003e1.00 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eS87D1012\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe S87D1012 is part of Honeywell’s proven S87 Series of ignition control modules, designed for reliable operation in residential and light commercial heating systems. It coordinates all essential ignition and flame safety functions, including spark generation, gas valve control, and system lockout. When the thermostat calls for heat, the module energizes the gas valve and produces a high-voltage spark to ignite the main burner. If ignition does not occur within 11 seconds, the module enters lockout mode to prevent unsafe gas buildup. The control can be manually reset from the thermostat, restoring operation after fault correction. Built for durability, the S87D1012 ensures consistent ignition performance in demanding HVAC environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReliable Ignition Control: Generates high-voltage potential for direct spark ignition of main burners, ensuring quick and stable lighting.\u003c\/li\u003e\n\u003cli\u003eAutomatic Safety Lockout: Initiates a system lockout after 11 seconds if ignition fails, preventing unburned gas accumulation.\u003c\/li\u003e\n\u003cli\u003eThermostat Reset Function: Allows convenient reset of the module directly from the room thermostat after a lockout event.\u003c\/li\u003e\n\u003cli\u003eGas Valve Compatibility: Works with any combination gas control rated at 2.0A or less for direct spark applications.\u003c\/li\u003e\n\u003cli\u003eSingle Trial Ignition Design: Provides one ignition attempt per heating cycle for precise and safe burner operation.\u003c\/li\u003e\n\u003cli\u003eIntegrated Flame Detection: Uses flame rectification to confirm burner operation and maintain system safety.\u003c\/li\u003e\n\u003cli\u003eCompact, Durable Construction: Engineered for long service life in HVAC systems with stable electronic components and robust housing.\u003c\/li\u003e\n\u003cli\u003eSimplified System Integration: Easily integrates with Honeywell gas valves, thermostats, and safety interlocks for cohesive control.\u003c\/li\u003e\n\u003cli\u003eReliable Safety Performance: Tested for consistent ignition response and dependable flame supervision under varied conditions.\u003c\/li\u003e\n\u003cli\u003eMaintenance-Friendly Design: Offers clear lockout indication and fast reset capability, minimizing service downtime.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe S87D1012 delivers the reliability and precision required for safe, efficient ignition control in gas-fired HVAC systems, ensuring consistent burner performance and dependable safety operation.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":49105131733248,"sku":"S87D1012","price":624.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/169582357.jpg?v=1785540974","url":"https:\/\/alotechparts.com\/products\/s87d1012-honeywell-direct-spark-ignition-dsi-control-module","provider":"Alo Tech Solutions","version":"1.0","type":"link"}