{"product_id":"honeywell-r7140l2007-burner-controls","title":"Honeywell R7140L2007 Burner Controls","description":"\u003cp\u003eConfigured for dynamic relay testing and flame surveillance in Honeywell 7800 SERIES relay systems, the \u003cstrong\u003eHoneywell R7140L2007\u003c\/strong\u003e (\u003cstrong\u003eR7140L\u003c\/strong\u003e Programmer Burner Control) provides direct physical\/electrical execution. This microprocessor-based hardware enforces pre-purge timing, automatic pilot ignition, main flame trial, and fail-safe safety shutdown sequences without relying on high-level software overrides.\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\u003eR7140L2007\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\u003eApproximately 0.82 kg (1.8 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e12.7 x 12.7 x 13.3 cm (5 x 5 x 5.25 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +60 deg C (-40 to +140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e10 W maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e120 Vac (+10% \/ -15%), 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Connected Load\u003c\/td\u003e\n\u003ctd\u003e2000 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlame Detection Types\u003c\/td\u003e\n\u003ctd\u003eRectification, UV scanner, PNR, PNP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Certification\u003c\/td\u003e\n\u003ctd\u003eSIL 3 Capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Hardware\u003c\/td\u003e\n\u003ctd\u003eQ7800 subbase (required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHoneywell DCS Process \u0026amp; Loop Safety Diagnostics\u003c\/h3\u003e\n\u003cp\u003eThe module integrates continuous optical flame surveillance and channel-to-channel isolation safeguards across its input matrix. Embedded firmware conducts dynamic self-checking on internal safety relays prior to every burner ignition cycle. If a flame signal, power surge, or component failure breaches pre-set safety thresholds, the execution state instantly transitions to a fail-safe lock-out. Fault history and first-out annunciation parameters remain stored in nonvolatile memory, preventing data degradation during total power disruption.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the unit support hot-swapping on an energized Q7800 subbase?\u003c\/p\u003e\n\u003cp\u003eA: No. Power to the Q7800 subbase must be de-energized before removing or installing the module to prevent electrical arcing across edge connectors and accidental safety trips.\u003c\/p\u003e\n\u003cp\u003eQ: How does the system retain fault logs during an unannounced power loss?\u003c\/p\u003e\n\u003cp\u003eA: Diagnostic history and first-out lockout codes write directly to nonvolatile EEPROM memory, maintaining complete status retention without needing external battery backup.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eStrip control panel power and verify zero voltage on line contacts before subbase engagement.\u003c\/li\u003e\n\u003cli\u003eAlign the module housing guide pins precisely into the target Q7800 subbase receptacles.\u003c\/li\u003e\n\u003cli\u003eDrive side retaining screws firmly to complete electrical earth grounding and physical latching.\u003c\/li\u003e\n\u003cli\u003eKeep flame signal sensor wiring separate from high-voltage ignition transformer leads in independent metallic conduits to reduce EMI coupling.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":45503442649203,"sku":"R7140L2007","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/R7140G-1000_Cocoai_03b41406-b78e-420f-b936-d7b9b9990a5c.jpg?v=1789524812","url":"https:\/\/www.dcssupplier.com\/products\/honeywell-r7140l2007-burner-controls","provider":"DcsSupplier Limited","version":"1.0","type":"link"}