{"product_id":"honeywell-rm7800m1011-relay-module","title":"Honeywell RM7800M1011 Relay Module","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell RM7800M1011\u003c\/strong\u003e , also cataloged as the \u003cstrong\u003eRM7800M1011\u003c\/strong\u003e Relay Module, operates as a dedicated hardware component for automatic burner sequencing, flame supervision, and safe firing rate execution within Honeywell 7800 Series burner control systems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\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\u003eRM7800M1011\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.7 kg (1 lb 10 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e127 mm x 127 mm x 133 mm (Q7800A Subbase)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e120 VAC (+10%, -15%), 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePilot Flame Period\u003c\/td\u003e\n\u003ctd\u003e4 sec or 10 sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain Flame Period\u003c\/td\u003e\n\u003ctd\u003e10 sec or Intermittent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePostPurge\u003c\/td\u003e\n\u003ctd\u003e15 sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface \/ Display\u003c\/td\u003e\n\u003ctd\u003eS7800 Keyboard Display Module included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol \u0026amp; Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe module manages automatic burner programming sequences, low-fire proven purge checks, and interrupted\/intermittent pilot timing using an internal microprocessor. System status is indicated via five front-panel LEDs and the included S7800 Keyboard Display Module. Integrated flame supervision circuitry interfaces with interchangeable plug-in flame amplifiers (R7847, R7848, R7849, R7851, R7852, R7861, or R7886) to execute dynamic self-checks and force a fail-safe safety shutdown upon flame failure or loss of running interlocks. Non-volatile memory preserves lockout history, sequence position, and diagnostic fault logs across main power loss events.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Which plug-in accessories are mandatory for the operation of the RM7800M1011 module?\u003c\/p\u003e\n\u003cp\u003eA: The module requires a Q7800A or Q7800B universal wiring subbase, an ST7800A plug-in purge timer card to define pre-purge duration, and an R78 Series flame signal amplifier tailored to the optical or ionization flame sensor in use.\u003c\/p\u003e\n\u003cp\u003eQ: How is the low-fire proven purge state verified during the burner startup sequence?\u003c\/p\u003e\n\u003cp\u003eA: Onboard sequence logic monitors the low-fire switch interlock circuit during the pre-purge cycle; if the low-fire position is not proven prior to ignition trial, the controller holds the sequence and prevents pilot valve energization.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eIsolate and disconnect all 120 VAC line power from the subbase prior to installing, removing, or wiring the RM7800M1011 relay module.\u003c\/li\u003e\n\u003cli\u003eSecurely mount the Q7800 subbase to the panel and verify that subbase ground terminals are bonded directly to cabinet chassis earth.\u003c\/li\u003e\n\u003cli\u003eRoute flame scanner lead wires in isolated grounded conduit, strictly separated from high-voltage ignition transformer cabling to prevent high-frequency noise coupling.\u003c\/li\u003e\n\u003cli\u003eInsert the required ST7800A purge timer card and R78 series flame amplifier into the module before seating the unit onto the Q7800 subbase and tightening mounting screws.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":45443210117235,"sku":"RM7800M1011","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/RM7838C1004_417d460c-39ee-42e2-869b-d35f3ea48af4.png?v=1788494412","url":"https:\/\/www.dcssupplier.com\/ar\/products\/honeywell-rm7800m1011-relay-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}