{"product_id":"honeywell-rm7840e1016-7800-series-relay-module","title":"Honeywell RM7840E1016 7800 Series Relay Module","description":"\u003cdiv class=\"qk-md-paragraph\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell RM7840E1016\u003c\/strong\u003e is a microprocessor-based burner control relay module designed for automatically fired gas, oil, or combination fuel single-burner applications. Operating as part of the 7800 Series system, this programming control provides automatic burner sequencing, flame supervision, system status indication, and self-diagnostics to ensure safe ignition and continuous monitoring during operation.\u003c\/p\u003e\n\u003ch3\u003eFunctional Features and Operation\u003c\/h3\u003e\n\u003cp\u003eThis module integrates precise timing functions to optimize combustion safety and operational control. Features include user-selectable airflow check functionality, a 15-second post-purge cycle, pre-ignition verification, and a 5-second early spark termination sequence. It supports interrupted pilot arrangements alongside interrupted second-stage pilot valve timing, ensuring defined fuel-ignition timing during startup.\u003c\/p\u003e\n\u003ch3\u003eSystem Components and Enclosure\u003c\/h3\u003e\n\u003cp\u003eThe assembly includes a protective dust cover to shield internal electronic components from industrial contamination. The relay module mounts directly onto a standard 7800 Series wiring subbase, requiring a plug-in flame signal amplifier and a purge card to establish complete burner management capability.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eRM7840E1016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eBurner Control Relay Module\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\u003ePilot Type\u003c\/td\u003e\n\u003ctd\u003eInterrupted pilot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecond Stage Pilot\u003c\/td\u003e\n\u003ctd\u003eInterrupted second-stage pilot valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEarly Spark Termination\u003c\/td\u003e\n\u003ctd\u003e5 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePost Purge Time\u003c\/td\u003e\n\u003ctd\u003e15 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAirflow Check\u003c\/td\u003e\n\u003ctd\u003eUser selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.00 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What additional components are required to operate the RM7840E1016? A: The module requires a compatible 7800 Series wiring subbase, a plug-in purge card to set pre-purge timing, and a plug-in flame signal amplifier selected for the specific flame detector in use.\u003c\/p\u003e\n\u003cp\u003eQ: How does the early spark termination feature function during burner ignition? A: Early spark termination cuts off the direct ignition spark 5 seconds before the main fuel valve period expires, allowing the system to verify pilot stability prior to main flame establishment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53088272023832,"sku":"RM7840E1016","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/R7120M1001_Cocoai_5c999417-8187-4a25-a7b3-95826dcae33d.jpg?v=1792028189","url":"https:\/\/www.innoplcsync.com\/products\/honeywell-rm7840e1016-7800-series-relay-module","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}