{"product_id":"honeywell-rm7840l1026-burner-control-relay-module","title":"Honeywell RM7840L1026 Burner Control Relay Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Honeywell RM7840L1026 is a microprocessor-based integrated burner control relay module from the 7800 Series, specifically engineered for industrial combustion management. This module provides reliable ignition sequencing, flame supervision, and safety interlock management for applications including industrial boilers, process furnaces, and utility burner trains. By automating the startup, operation, and shutdown sequences, the RM7840L1026 ensures consistent combustion performance while maintaining strict safety protocols.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eProgrammable burner sequencing logic for precise combustion control.\u003c\/li\u003e\n\u003cli\u003eConfigured for interrupted pilot ignition and intermittent second-stage pilot valve operation.\u003c\/li\u003e\n\u003cli\u003eIntegrated 15-second post-purge cycle and 5-second early spark termination.\u003c\/li\u003e\n\u003cli\u003ePre-ignition safety verification and user-selectable airflow proving logic.\u003c\/li\u003e\n\u003cli\u003eAdvanced fault lockout and reset diagnostics to minimize system downtime.\u003c\/li\u003e\n\u003cli\u003eRobust construction designed for continuous duty in industrial environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis burner control module is suitable for a wide range of industrial heating applications, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIndustrial boiler management systems.\u003c\/li\u003e\n\u003cli\u003eProcess heaters and refinery furnace burner control.\u003c\/li\u003e\n\u003cli\u003eUtility-scale burner train sequencing.\u003c\/li\u003e\n\u003cli\u003eSystems requiring deterministic safety interlocks and flame supervision.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eRM7840L1026\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\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePost-Purge Time\u003c\/td\u003e\n\u003ctd\u003e15 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarly Spark Termination\u003c\/td\u003e\n\u003ctd\u003e5 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e6 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\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the system is fully powered down before inserting or removing the module from the subbase.\u003c\/li\u003e\n\u003cli\u003eMount the module on a compatible Honeywell 7800 Series subbase to ensure proper electrical contact and mechanical alignment.\u003c\/li\u003e\n\u003cli\u003eVerify that all field wiring is routed away from high-EMI sources to prevent signal interference with the flame amplifier.\u003c\/li\u003e\n\u003cli\u003eEnsure adequate ventilation in the control cabinet to maintain operating temperatures within the specified 0 to 60 deg C range.\u003c\/li\u003e\n\u003cli\u003eFollow all local safety codes and manufacturer documentation regarding grounding and terminal connections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs the RM7840L1026 compatible with all 7800 Series subbases?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed to mount on standard Honeywell 7800 Series subbases, but always verify the specific subbase wiring configuration against the module's terminal requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the primary function of the post-purge cycle?\u003c\/strong\u003e\u003cbr\u003eThe 15-second post-purge cycle ensures that any residual combustible gases are cleared from the combustion chamber after the burner shuts down, enhancing operational safety.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":51000396415228,"sku":"RM7840L1026","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_dcdbd165-1971-497c-b2c3-c82c74dd04c2.jpg?v=1787250029","url":"https:\/\/www.electronicplc.com\/es\/products\/honeywell-rm7840l1026-burner-control-relay-module","provider":"Electronic PLC","version":"1.0","type":"link"}