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manual abstract
The RM7800/RM7840 system consists of a Relay Module. Keyboard Display Modules (standard with RM7800), Dust Cover (standard with RM7840), Subbase, Amplifier, and Purge Card. Options include DATA CONTROLBUS MODULE™, Remote Display Mounting, First- Out Expanded Annunciator and Communications through Modbus™. Functions provided by the RM7800/RM7840 include automatic burner sequencing, flame supervision, system status indication, system or self-diagnostics and troubleshooting. The RM7800/RM7840 is a solid state replacement for the electromechanical R4140 Automatic Programming Control. This document provides installation and static checkout instructions. Other applicable publications are: 65-0084:Q7800A,B 22-Terminal Wiring Subbase Product Data. 65-0089:ST7800A Plug-In Purge Timer Installation Instructions. 65-0090:S7800A Keyboard Display Module Product Data. 65-0091:S7810A Data ControlBus Module™ Product Data. 65-0095:S7820 Remote Reset Module Product Data. 65-0097:221729C Dust Cover Packing Sheet. 65-0101:S7830 Expanded Annunciator Product Data. 65-0109:R7824, R7847, R7848, R7849, R7851, R7852, R7861, R7886 Flame Amplifiers for the 7800 SERIES Product Data. 65-0131:221818A Extension Cable Assembly Product Data. 65-0229:7800 SERIES RELAY MODULES Checkout and Troubleshooting Product Data. 65-0249:S7810M ModBus™ Module Product Data. SPECIFICATIONS Electrical Ratings, see Table 3: Voltage and Frequency: 120 Vac (+10/-15%), 50 or 60 Hz (±10%). Power Dissipation: RM7800/RM7840: 10W maximum. Maximum Total Connected Load: 2000 VA. Fusing: 15A maximum, Type SC or equivalent Fast Blow. Environmental Ratings: Ambient Temperature: Operating: -40°F to +140°F (-40°C to +60°C). Storage: -40°F to +150°F (-40°C to +66°C). Humidity: 85% relative humidity continuous, noncondensing. Vibration: 0.5G environment. SIL 3 Capable: SIL 3 Capable in a properly designed Safety Instrumented System. See form number 65-0312 for Certificate Agreement. Approvals: Underwriters Laboratories Inc. Listed: File No. MP268, Guide No. MCCZ. Canadian Standards Association Certified: LR9S329-3. Factory Mutual Approved: Report No. J.I.1V9A0.AF. Swiss Re (formerly IRI): Acceptable. Federal Communications Commission, Part 15, Class B—Emissions. INSTALLATION When Installing this Product... 1. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition. 2. Check the ratings given in the instructions and marked on the product to make sure the product is suitable for the application. 3. Installer must be a trained, experienced, flame safeguard service technician. 4. After installation is complete, check out the product operation as provided in these instructions. WARNING Fire or Explosion Hazard. Can cause property damage, severe injury, or death. To prevent possible hazardous burner operation, verify safety requirements each time a control is installed on a burner. SIL3Capable 66-1085-04 RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES WARNING Electrical Shock Hazard. Can cause serious injury or death. Disconnect the power supply before beginning installation. More than one power supply disconnect may be required. IMPORTANT 1. Wiring connections for the relay modules are unique; therefore, refer to Fig. 2, 3, 4, or the correct Specifications for proper subbase wiring, and sequence charts. 2. Wiring must comply with all applicable codes, ordinances and regulations. 3. Wiring must comply with NEC Class 1 (Line Voltage) wiring. 4. Loads connected to the RM7800/RM7840 must not exceed those listed on the RM7800/RM7840 label or the Specifications, see Table 1. 5. Limits and interlocks must be rated to simultaneously carry and break current to the ignition transformer, pilot valve, and main fuel valve(s). 6. All external timers must be listed or component recognized by authorities who have jurisdiction for the specific purpose for which they are used. 7. For on-off gas-fired systems, some authorities who have jurisdiction prohibit the wiring of any limit or operating contacts in series between the flame safeguard control and the main fuel valve(s). 8. Two Flame Detectors can be connected in parallel with the exception of Infrared Flame Detectors (C7015, C7915), Ultraviolet Flame Detectors (C7927, C7961) or Visible Light Detector (C7962). 9. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class B computing device of Part 15 of FCC rules which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area may cause interference; in which case, the users at their own expense may be required to take whatever measures are required to correct this interference. 10...
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