{"product_id":"rm7895d1011-honeywell-on-off-primary-control-with-prepurge","title":"RM7895D1011 | Honeywell On-Off Primary Control With Prepurge","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003eThe Honeywell RM7895D1011 is a microprocessor-based relay module used for primary burner control in single-burner gas, oil, or combination-fuel systems. It supports interrupted pilot operation with programmable purge timing and dynamic airflow check functionality.\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 width=\"100%\" style=\"height: 657.917px; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.9306px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 35.9306px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eCondition\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 35.9306px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 25.2917px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 25.2917px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eBrand\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 25.2917px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e\u003cspan data-sheets-root=\"1\"\u003eHoneywell\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.4306px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 26.4306px;\"\u003eCategory\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 26.4306px;\"\u003e\n\u003cdiv class=\"mt-1 md:mt-0 column-left basis-2\/4 divide-y divide-rad-gray-10 border-b-[0.0625rem] border-rad-gray-10 md:border-0\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem] md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"max-w-[8rem] break-words\"\u003e\n\u003cspan\u003eHVAC\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 21.9167px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 21.9167px;\"\u003ePart Number\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 21.9167px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003eRM7895D1011\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 24.1806px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 24.1806px;\"\u003e\u003cspan\u003eSubcategory\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 24.1806px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003eBurner Control\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.625px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 26.625px;\"\u003eSeries\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 26.625px;\"\u003e7800 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 27.25px;\"\u003e\n\u003cth class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\" style=\"width: 29.9961%; text-align: left; height: 27.25px;\"\u003eProduct Type\u003c\/th\u003e\n\u003ctd class=\"text-left text-body1 py-10 desktop:w-[60%]\" style=\"width: 69.6403%; height: 27.25px;\"\u003eRelay Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1806px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 39.1806px;\"\u003eApplication Type\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 39.1806px;\"\u003eSingle-burner gas\/oil\/combination fuel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1806px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 39.1806px;\"\u003eIgnition Type\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 39.1806px;\"\u003eInterrupted Pilot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.7917px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 58.7917px;\"\u003ePilot Flame Establishing Period\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 58.7917px;\"\u003eSelectable: 4 or 10 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.7917px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 58.7917px;\"\u003eMain Flame Establishing Period\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 58.7917px;\"\u003e10 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 19.5972px;\"\u003eVoltage Supply\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 19.5972px;\"\u003e120 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 19.5972px;\"\u003eFrequency\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 19.5972px;\"\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1944px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 39.1944px;\"\u003ePre-Ignition Purge\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 39.1944px;\"\u003eProgrammable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 19.5972px;\"\u003eAirflow Check\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 19.5972px;\"\u003eDynamic airflow switch verification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1806px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 39.1806px;\"\u003eLED Indicators\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 39.1806px;\"\u003e5 sequence status LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1944px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 39.1944px;\"\u003eDisplay Compatibility\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 39.1944px;\"\u003eS7800 Keyboard Display Module (optional)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1944px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 39.1944px;\"\u003eOptional Interfaces\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 39.1944px;\"\u003eModbus, Remote Annunciator, First-Out Indicators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1944px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 39.1944px;\"\u003eContact Configuration\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 39.1944px;\"\u003eRequires external amplifier and subbase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003cth style=\"width: 29.9961%; text-align: left; height: 19.5972px;\"\u003eWeight\u003c\/th\u003e\n\u003ctd style=\"width: 69.6403%; height: 19.5972px;\"\u003e\u003cspan\u003e2.30 lbs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eRM7895D1011\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe RM7895D1011 is a 7800 Series relay module from Honeywell, developed for managing the on-off firing sequence of industrial or commercial burners using gas, oil, or mixed fuels. It integrates programmable pre-purge cycles, a selectable 4- or 10-second pilot flame establishing period, and a fixed 10-second main flame trial. Operating on 120 VAC at 50\/60 Hz, the controller includes features such as dynamic airflow switch check, selectable relight or lockout on flame loss, and history retention via non-volatile memory. The unit requires a separate subbase, amplifier, and prepurge timer for complete system integration and is compatible with Honeywell’s S7800 display and annunciator modules for extended diagnostics and monitoring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAutomatic Burner Control: Manages sequencing, flame supervision, purge timing, and diagnostics.\u003c\/li\u003e\n\u003cli\u003eInterrupted Pilot Operation: Supports timed pilot ignition with a switch to main flame.\u003c\/li\u003e\n\u003cli\u003eFlame Failure Response Time: Configurable to 4 or 10 seconds for pilot; 10 seconds for main.\u003c\/li\u003e\n\u003cli\u003eDynamic Airflow Check: Verifies combustion airflow conditions prior to ignition.\u003c\/li\u003e\n\u003cli\u003eSelectable Lockout Behavior: User can set relight or lockout upon flame loss.\u003c\/li\u003e\n\u003cli\u003eStatus LEDs: Five onboard LEDs provide real-time sequence status indication.\u003c\/li\u003e\n\u003cli\u003ePlug-In Amplifier Support: Compatible with interchangeable flame amplifier modules.\u003c\/li\u003e\n\u003cli\u003eOptional S7800 Display: Allows local or remote annunciation of faults and operating status.\u003c\/li\u003e\n\u003cli\u003eNon-Volatile Memory: Maintains event logs and lockout state after power loss.\u003c\/li\u003e\n\u003cli\u003eModular Design: Subbase, amplifier, and prepurge timer required for full operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe RM7895D1011 delivers advanced, modular, and configurable control for safe and efficient single-burner applications.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":49105349411072,"sku":"RM7895D1011","price":2229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/1_da025389-e964-485b-b010-8f8c9ed1bbe7.jpg?v=1785545383","url":"https:\/\/alotechparts.com\/products\/rm7895d1011-honeywell-on-off-primary-control-with-prepurge","provider":"Alo Tech Solutions","version":"1.0","type":"link"}