{"product_id":"r7910a1027-honeywell-hydronic-boiler-controller-with-flame-supervision","title":"R7910A1027 | Honeywell Hydronic Boiler Controller With Flame Supervision","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"376\" data-start=\"85\"\u003eThe Honeywell \u003cspan data-sheets-root=\"1\"\u003eR7910A1027\u003c\/span\u003e is a hydronic controller designed to manage boiler operation with integrated flame supervision and system safety monitoring. It operates on a 120 VAC supply and supports coordinated control of ignition, pumps, fans, and boiler limits.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 450.657px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eHVAC Controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003eR7910A1027\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eHydronic Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eController Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eHydronic boiler controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003e120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eSupply Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003e50–60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eControl Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003ePID load control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eFlame Sensing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eUV sensor or flame rod\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eIgnition Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eInternal or external spark generator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eDigital inputs, analog NTC sensor inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eDigital outputs, analog outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003ePump Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eCirculation pump control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eFan Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 39.1875px;\"\u003e\u003cstrong\u003eBoiler Control Functions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 39.1875px;\"\u003eHeat control, boiler enable, limit management\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eProtection Functions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eFrost protection, slow start, anti-condensate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eTemperature Limits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eBoiler ΔT, stack limit, boiler limit, DHW limit, outlet T-rise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eStatus Indication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003ePower, flame, alarm LEDs (3 total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eDiagnostics\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003e15 alert codes, 15 fault history records\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eOperating Application\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003eHydronic boiler systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 28.3774%; height: 19.5938px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.259%; height: 19.5938px;\"\u003e2.1 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\"\u003e R7910A1027\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe \u003cspan data-sheets-root=\"1\"\u003eR7910A1027\u003c\/span\u003e is part of Honeywell’s hydronic control portfolio developed for integrated boiler management in heating systems. It combines heat demand control, flame supervision, circulation management, and ignition sequencing within a single controller. The unit supports both UV and flame rod sensing and provides detailed alert and fault histories with equipment status captured at the time of events. Advanced control algorithms prioritize system functions while maintaining operational safety and efficiency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated Hydronic Boiler Control: Manages heat demand, boiler enable, circulation pumps, fans, and ignition in a unified control platform.\u003c\/li\u003e\n\u003cli\u003eAdvanced PID Load Control: Uses PID algorithms to regulate boiler output and maintain stable system performance.\u003c\/li\u003e\n\u003cli\u003eComprehensive Safety Supervision: Supports UV or flame rod sensing with continuous flame monitoring and alarm indication.\u003c\/li\u003e\n\u003cli\u003eExtensive Protection Functions: Includes frost protection, slow start, anti-condensate control, and multiple temperature limit safeguards.\u003c\/li\u003e\n\u003cli\u003eFlexible Sensor And I O Support: Accepts analog NTC temperature sensors along with digital and analog inputs and outputs.\u003c\/li\u003e\n\u003cli\u003eDetailed Diagnostics And History: Stores up to 15 alert codes and 15 fault history records with system status snapshots.\u003c\/li\u003e\n\u003cli\u003eClear Status Indication: Three onboard LEDs provide immediate visibility of power, flame, and alarm conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cspan data-sheets-root=\"1\"\u003eR7910A1027\u003c\/span\u003e delivers the reliability and precision required for safe and efficient hydronic boiler control in heating systems.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":49105024319744,"sku":"R7910A1027","price":1240.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/R7910A1027-U.webp?v=1785538229","url":"https:\/\/alotechparts.com\/products\/r7910a1027-honeywell-hydronic-boiler-controller-with-flame-supervision","provider":"Alo Tech Solutions","version":"1.0","type":"link"}