{"product_id":"honeywell-rm7850a1019-7800-series-burner-control-relay-module","title":"Honeywell RM7850A1019 7800 SERIES Burner Control Relay Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe Honeywell RM7850A1019 is a microprocessor-based burner management relay module designed for the 7800 SERIES control system. It provides reliable, programmable combustion sequencing for single-burner industrial applications, including gas, oil, and dual-fuel boilers. The module is engineered to manage critical safety functions such as interrupted pilot ignition, second-stage pilot valve control, and post-purge sequencing, ensuring safe and efficient burner operation in power plants, refineries, and process heating environments.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProgrammable burner management for single-burner firing systems.\u003c\/li\u003e\n\u003cli\u003eSupports user-selectable airflow check functions for enhanced safety.\u003c\/li\u003e\n\u003cli\u003eExecutes precise pre-ignition sequencing and intermittent second-stage pilot valve control.\u003c\/li\u003e\n\u003cli\u003eIntegrated 15-second post-purge cycle to ensure combustion chamber clearance.\u003c\/li\u003e\n\u003cli\u003eContinuous monitoring of lockout interlocks with deterministic fault handling.\u003c\/li\u003e\n\u003cli\u003eDesigned for seamless integration with the Honeywell 7800 SERIES backplane architecture.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eThe RM7850A1019 is widely utilized in industrial combustion control environments, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial and commercial boiler management systems.\u003c\/li\u003e\n\u003cli\u003eRefinery process heating units.\u003c\/li\u003e\n\u003cli\u003ePower generation combustion control.\u003c\/li\u003e\n\u003cli\u003eStaged combustion systems requiring intermittent pilot control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eRM7850A1019\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003e7800 SERIES\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e120 VAC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 10 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePilot Configuration\u003c\/td\u003e\n\u003ctd\u003eInterrupted pilot with intermittent second-stage pilot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePost Purge Duration\u003c\/td\u003e\n\u003ctd\u003e15 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure power is disconnected before installing or removing the module from the 7800 SERIES backplane.\u003c\/li\u003e\n\u003cli\u003eThe module must be installed in a clean, dry environment protected from excessive vibration and moisture.\u003c\/li\u003e\n\u003cli\u003eVerify that all wiring connections to the backplane are secure and conform to local electrical codes.\u003c\/li\u003e\n\u003cli\u003eUse anti-static precautions when handling the module to prevent damage to internal circuitry.\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding of the control cabinet to minimize EMI\/RFI interference.\u003c\/li\u003e\n\u003cli\u003eRegularly inspect the flame detection components and purge timers for optimal system performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the primary function of the RM7850A1019?\u003c\/strong\u003e\u003cbr\u003eThis module acts as a primary burner control relay, managing the ignition sequence, pilot valve control, and safety interlocks for single-burner combustion systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module support post-purge?\u003c\/strong\u003e\u003cbr\u003eYes, the RM7850A1019 includes a fixed 15-second post-purge cycle to clear the combustion chamber of residual gases after a shutdown.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this module compatible with other 7800 SERIES components?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed to interface directly with 7800 SERIES backplanes, display modules, and flame detection sensors.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":50912033243388,"sku":"RM7850A1019","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_3fa840f1-e16e-4eee-ad4b-8f41d4603d05.jpg?v=1785722315","url":"https:\/\/www.electronicplc.com\/ar\/products\/honeywell-rm7850a1019-7800-series-burner-control-relay-module","provider":"Electronic PLC","version":"1.0","type":"link"}