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Honeywell RM7800E manual

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Table of contents for the manual

  • Page 1

    INST ALLATION INSTRUCTIONS 66-1085-04 SIL 3 Capable RM7800E,G ,L,M; RM7840E,G ,L,M 7800 SERIES Relay Modules APPLICATION The Honeywell RM7800/R M7840 Relay Modules ar e microprocessor-based integrated burner control s for automatically fired gas, oil, or combination fuel single burner applications. The RM7800/RM7840 Rel ay Modules are used for UL/C[...]

  • Page 2

    RM7800E,G ,L,M; RM7840E,G ,L,M 7800 SERIES RELAY MODULES 66-1085—0 4 2 WARNING Electrical Shock Hazard. Can cause ser ious injury or d eath. Disconnect the power suppl y before beginning installation. More than one power supply disconnect may be required. IMPORT ANT 1. Wiring connections for the relay modul es are unique; therefore, refer to Fig.[...]

  • Page 3

    RM7800E,G ,L,M; RM7840E,G ,L,M 7800 SERIES RELAY MODULES 3 66-1085—04 a. Do not run high voltage ignition transfo rmer wires in the same conduit with the flame detector , Data Controlbus Module™, or Remote Reset Module wiring. b. Do not route flame detector , Data Controlbus Module™, or Remote Reset Module leadwires in conduit with line volta[...]

  • Page 4

    RM7800E,G ,L,M; R M7840E,G ,L,M 7800 SERIES RELAY MODULES 66-1085—0 4 4 Fig. 1. Internal block diagram of the RM7800L/RM7840L (See Fig. 2, 3, 4 or 5 for individual det ailed wiring instructions). CONFIGURATION JUMPERS MICROCOMPUTER RESET PUSHBUTTON RUN/TEST SWITCH STATUS LEDs PLUG-IN PURGE TIMER CARD SAFETY RELAY CIRCUIT POWER SUPPLY KEYBOARD DIS[...]

  • Page 5

    RM7800E,G ,L,M; RM7840E,G ,L,M 7800 SERIES RELAY MODULES 5 66-1085—04 T able 2. Rec ommended Grounding Practices. T able 3. T erminal Ra tings. . a The relay module must have an earth groun d providing a c onnecti on between the subbase a nd the control panel or the equipment. The earth ground wire must be capable of conducting th e current to bl[...]

  • Page 6

    RM7800E,G ,L,M; R M7840E,G ,L,M 7800 SERIES RELAY MODULES 66-1085—0 4 6 T able 4. Combin ations for T erminals 8, 9, 10 and 21. T able 5. Explan ation of Each Combination. Mounting RM7800/RM7840 Relay Module (Fig. 5) 1. Mount the RM7800/RM7840 vertically on the Q7800 Subbase, or mount horizontally with the knife blade terminals pointing downwa rd[...]

  • Page 7

    RM7800E,G ,L,M; RM7840E,G ,L,M 7800 SERIES RELAY MODULES 7 66-1085—04 Fig. 2. Wiring subbase and sequ ence for RM7800E,L/RM7840E,L. RM7800/RM7840E,L POWER 00 OPERATING CONTROLS AND INTERLOCKS BURNER FLAME SIGNAL FIRING RATE MOTOR INITIATE (INITIAL POWERUP ONLY) POWER STANDBY POWER PREPURGE HOLD DRIVE TO HIGH FIRE PREPURGE HOLD DRIVE TO LOW FIRE P[...]

  • Page 8

    RM7800E,G ,L,M; R M7840E,G ,L,M 7800 SERIES RELAY MODULES 66-1085—0 4 8 Fig. 3. Wiring subbase and sequence for RM78 00G/RM7840G . M12260B G L2 3 4 5 6 7 8 9 10 F (L1) 13 14 15 16 17 18 19 20 21 22 12 RUNNING INTERLOCKS (INC. AIR FLOW SWITCH) MASTER SWITCH LOW FIRE START SWITCH 5 SECOND IGNITION (EARLY SPARK TERMINATION) MAIN FUEL VALVE(S) BURNER[...]

  • Page 9

    RM7800E,G ,L,M; RM7840E,G ,L,M 7800 SERIES RELAY MODULES 9 66-1085—04 Fig. 4. Wiring subbase and sequen ce for RM7800M/RM7840M. M12262A G L2 3 4 5 6 7 8 9 10 F (L1) 13 14 15 16 17 18 19 20 21 22 12 MASTER SWITCH LOW FIRE START SWITCH 5 SECOND IGNITION (EARLY SPARK TERMINATION) MAIN FUEL VALVE(S) BURNER CONTROLLER/LIMITS BURNER MOTOR (BLOWER) COMM[...]

  • Page 10

    RM7800E,G ,L,M; R M7840E,G ,L,M 7800 SERIES RELAY MODULES 66-1085—0 4 10 Fig. 5. RM7800/RM7840 Re lay Module exploded view. SAFETY SHUT DOWN Safety Shut down (Lockout) occurs if any of the followin g occur during the indicated period: 1. INITIA TE Peri od: a. Purge card is not installed or is removed. b. Purge card is bad. c. Configuration jumper[...]

  • Page 11

    RM7800E,G ,L,M; RM7840E,G ,L,M 7800 SERIES RELAY MODULES 11 66-1085—04 g. Lockout Interlock opens during PREPURGE (RM7840E,L). h. Ignition/pilot valve/intermitt ent pilot valve terminal is energized. i. Main valve terminal is energized. j. Internal system fault occurred. k. Purge card is removed. l. Purge card is bad. 4. PILOT FLAME EST ABLISHI N[...]

  • Page 12

    RM7800E,G ,L,M; R M7840E,G ,L,M 7800 SERIES RELAY MODULES 66-1085—0 4 12 terminal 21. The RM780 0/RM7840G has an interrupted or intermittent pilot valve, terminal 21, depending on the selection of configuratio n jumper 2. The RM7800/RM78 40E,L has a fifteen-second interrupted pilot valve, terminal 21. All of the RM7800/RM7840s have a ten-second i[...]

  • Page 13

    RM7800E,G ,L,M; RM7840E,G ,L,M 7800 SERIES RELAY MODULES 13 66-1085—04 • Lockout information (Lockout, Faul t Code, Message and Sequence). The extreme right side o f the firs t line is either b lank or shows a small arrow pointing to the second line follo wed by a two-letter code (DI-Diagnostic Information, Hn-Faul t History Information, and EA[...]

  • Page 14

    RM7800E,G ,L,M; R M7840E,G ,L,M 7800 SERIES RELAY MODULES 66-1085—0 4 14 T able 7. Site Con figurable Jumper Optio ns. a Pilot V alve /First S tage Oil V alve (V alve/S tart) T erminal 21. b A 30 second MFEP can be accomplished by addi ng a jumper wire between T erminals 19 and 5. SERVICE NOTE :Clipping and removing a site-configurable jumper enh[...]

  • Page 15

    RM7800E,G ,L,M; RM7840E,G ,L,M 7800 SERIES RELAY MODULES 15 66-1085—04 T able 8. Static Checkout. T est No. RM7800/ RM7840 Models Te s t Jumpers V oltmeter Normal Operatio n If Operation is Abnormal, Check the Item s Listed Below 1 All None 4-L2 Line voltage at T erminal 4. 1. Master Switch. 2. Power connected to the Master Switch. 3. Overload pr[...]

  • Page 16

    RM7800E,G ,L,M; R M7840E,G ,L,M 7800 SERIES RELAY MODULES Automation and Co ntrol Solutions Honeywell Internationa l Inc. 1985 Douglas Drive North Golden Valley, MN 55422 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Toronto, Ontario M1V 4Z9 customer.honeywell.com ® U.S. Regi stered T rademark © 2010 Honeywell International Inc. 66-1085?[...]