{"product_id":"honeywell-rm7897a2002-burner-control-ready-to-ship","title":"RM7897A2002 | Honeywell On-Off Primary Burner Control with Programmable Post-Purge","description":"\u003ch4\u003eDescription\u003c\/h4\u003e\n\u003cp\u003eThe Honeywell RM7897A2002 is an on-off primary burner control designed for single-burner systems using gas, oil, or combination fuel. Operating at 120 VAC, it provides supervised pre-purge and programmable post-purge sequencing for safe burner operation. The RM7897A2002 also supports selectable recycle or lockout responses on airflow or flame loss, improving system protection.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003eHVAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003eRM7897A2002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003eBurner Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003eOn-Off Primary Control with Pre \u0026amp; Programmable Post Purge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003e120 VAC (+10%, –15%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eFrequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003e50\/60 Hz (±10%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eUsed With\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003e7800 Series Amplifiers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003ePrepurge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003eDetermined by ST7800A purge timer card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003ePostpurge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003eProgrammed with S7800A1142 display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eFlame Establishing Period\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003e4 s or 10 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eInterlocks\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003eSelectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003ePreignition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003ePilot Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003eSelectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eRequired Components\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003eQ7800A\/B subbases, R78xx amplifiers, ST7800A timer card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eVibration Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003e0.5 G environment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eDimensions (in.)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003e5 W × 5 H × 5¼ D (Q7800A); 6 3\/32 D (Q7800B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eDimensions (mm)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003e127 W × 127 H × 133 D; 155 D (Q7800B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eStorage Temperature (F)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003e–40°F to +140°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.25%;\"\u003e\u003cstrong\u003eStorage Temperature (C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.5307%;\"\u003e–40°C to +60°C\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 RM7897A2002\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe RM7897A2002 is part of Honeywell’s 7800 Series burner management platform, built to deliver standardized sequencing and flame supervision. Its modular design includes compatibility with Q7800A\/B subbases, plug-in flame signal amplifiers, and purge timer cards for flexible system configuration. The control integrates easily into industrial burner systems, supporting serial accessories such as display modules for programming and status indication. Designed for reliable ignition and safe shutdown, it is widely used in commercial and industrial heating systems requiring automatic burner sequencing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOn-off primary control: Provides supervised burner sequencing with integrated safety logic.\u003c\/li\u003e\n\u003cli\u003eProgrammable post-purge: Adjustable via S7800A1142 display for application-specific purge timing.\u003c\/li\u003e\n\u003cli\u003eSelectable interlocks: Allows configuration of airflow and flame-loss responses as recycle or lockout.\u003c\/li\u003e\n\u003cli\u003eModular component support: Compatible with 7800 Series subbases, amplifiers, and purge timer cards.\u003c\/li\u003e\n\u003cli\u003eDual flame-establishing periods: Selectable 4-second or 10-second pilot ignition windows.\u003c\/li\u003e\n\u003cli\u003eWide ambient rating: Operates from –40°F to 140°F for harsh industrial environments.\u003c\/li\u003e\n\u003cli\u003eLED status indication: Provides clear sequencing and diagnostic information.\u003c\/li\u003e\n\u003cli\u003eNonvolatile memory: Retains operational history and status in the event of power loss.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe RM7897A2002 delivers the reliability and precision required for automated industrial burner management.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":47409323278634,"sku":"RM7897A2002","price":949.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/RM7897A2002.webp?v=1706096270","url":"https:\/\/iqelectro.com\/products\/honeywell-rm7897a2002-burner-control-ready-to-ship","provider":"IQElectro","version":"1.0","type":"link"}