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Honeywell RM7800E User Manual

Honeywell burner user manual.
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RM7800E,G,L,M; RM7840E,G,L,M
7800 SERIES Relay Modules
INSTALLATION INSTRUCTIONS
APPLICATION
Maximum Total Connected Load: 2000 VA.
Fusing: 15A maximum, Type SC or equivalent Fast Blow.
The Honeywell RM7800/RM7840 Relay Modules are
microprocessor-based integrated burner controls for
Environmental Ratings:
automatically fired gas, oil, or combination fuel single burner
Ambient Temperature:
applications. The RM7800/RM7840 Relay Modules are used
Operating: -40°F to +140°F (-40°C to +60°C).
for UL/CSA On/Off, UL/CSA Modulating, and FM/IRI
Storage: -40°F to +150°F (-40°C to +66°C).
Modulating burner applications. The RM7800/RM7840 system
Humidity: 85% relative humidity continuous, noncondensing.
consists of a Relay Module. Keyboard Display Modules
Vibration: 0.5G environment.
(standard with RM7800), Dust Cover (standard with RM7840),
Subbase, Amplifier, and Purge Card. Options include DATA
SIL 3 Capable:
CONTROLBUS MODULE™, Remote Display Mounting, First-
SIL 3 Capable in a properly designed Safety Instrumented
Out Expanded Annunciator and Communications through
System. See form number 65-0312 for Certificate Agree-
Modbus™.
ment.
Functions provided by the RM7800/RM7840 include
Approvals:
automatic burner sequencing, flame supervision, system
Underwriters Laboratories Inc. Listed: File No. MP268,
status indication, system or self-diagnostics and
Guide No. MCCZ.
troubleshooting. The RM7800/RM7840 is a solid state
Canadian Standards Association Certified: LR9S329-3.
replacement for the electromechanical R4140 Automatic
Factory Mutual Approved: Report No. J.I.1V9A0.AF.
Programming Control.
Swiss Re (formerly IRI): Acceptable.
Federal Communications Commission, Part 15,
This document provides installation and static checkout
Class B—Emissions.
instructions. Other applicable publications are:
65-0084:Q7800A,B 22-Terminal Wiring Subbase Product
INSTALLATION
Data.
65-0089:ST7800A Plug-In Purge Timer Installation
Instructions.
When Installing this Product...
65-0090:S7800A Keyboard Display Module Product Data.
65-0091:S7810A Data ControlBus Module™ Product Data.
1. Read these instructions carefully. Failure to follow
65-0095:S7820 Remote Reset Module Product Data.
them could damage the product or cause a hazardous
65-0097:221729C Dust Cover Packing Sheet.
condition.
65-0101:S7830 Expanded Annunciator Product Data.
2. Check the ratings given in the instructions and marked
65-0109:R7824, R7847, R7848, R7849, R7851, R7852,
on the product to make sure the product is suitable for
R7861, R7886 Flame Amplifiers for the 7800 SERIES
the application.
Product Data.
3. Installer must be a trained, experienced, flame
65-0131:221818A Extension Cable Assembly Product
safeguard service technician.
Data.
4. After installation is complete, check out the product
65-0229:7800 SERIES RELAY MODULES Checkout and
operation as provided in these instructions.
Troubleshooting Product Data.
65-0249:S7810M ModBus™ Module Product Data.
WARNING
SPECIFICATIONS
Fire or Explosion Hazard.
Can cause property damage, severe injury,
or death.
Electrical Ratings, see Table 3:
To prevent possible hazardous burner operation, verify
Voltage and Frequency: 120 Vac (+10/-15%), 50 or 60 Hz
safety requirements each time a control is installed on
(±10%).
a burner.
Power Dissipation: RM7800/RM7840: 10W maximum.
SIL
3
Capable
66-1085-04

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   Summary of Contents for Honeywell RM7800E

  • Page 1: Installation Instructions, Specifications

    RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES Relay Modules APPLICATION The Honeywell RM7800/RM7840 Relay Modules are microprocessor-based integrated burner controls for automatically fired gas, oil, or combination fuel single burner applications. The RM7800/RM7840 Relay Modules are used for UL/CSA On/Off, UL/CSA Modulating, and FM/IRI Modulating burner applications.

  • Page 2

    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;...

  • Page 3

    Data ControlBus Module™ Remote Reset Module 13 Vdc full-wave rectified transformer power input. RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES c. Remote Reset leadwires—The maximum length of wire is 1000 feet to a Remote Reset pushbutton. d. Data Controlbus Module™—The maximum Data Controlbus Module™...

  • Page 4

    RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES RUN/TEST SWITCH RESET PUSHBUTTON STATUS LEDs PRE-IGNITION INTERLOCK LIMITS CONTROLLER KEYBOARD DISPLAY MODULE RS485 COMMUNICATIONS PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. Fig. 1. Internal block diagram of the RM7800L/RM7840L (See Fig. 2, 3, 4 or 5 66-1085—04...

  • Page 5

    2000 VA maximum connected load to relay module assembly. See tables 4 and 5. RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES Table 2. Recommended Grounding Practices. 1. Use to provide a connection between the subbase and the control panel of the equipment.

  • Page 6

    RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES Pilot Fuel 8 No Load No Load No Load No Load 4.5A ignition. 50 VA Pilot Duty plus 4.5A ignition. 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 downward.

  • Page 7

    FOR THE R7800/R7840E: THE HIGH FIRE SWITCH MUST BE WIRED CORRECTLY TO PERFORM ENERGY SAVING PURGE FUNCTIONS. THE BURNER/BLOWER MOTOR DOES NOT START UNTIL THE HIGH FIRE SWITCH MAKES. RM7800L1053, RM7840L1026: TERMINAL 21 PROVIDES INTERMITTENT PILOT FUNCTION. Fig. 2. Wiring subbase and sequence for RM7800E,L/RM7840E,L. RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES SERIES 90...

  • Page 8

    RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES 120V ALARM BURNER MOTOR (BLOWER) BURNER CONTROLLER/LIMITS RUNNING INTERLOCKS (INC. AIR FLOW SWITCH) 10 SEC. INTERRUPTED PILOT/IGNITION MAIN FUEL VALVE(S) 5 SECOND IGNITION (EARLY SPARK TERMINATION) FLAME DETECTOR INITIATE (INITIAL POWERUP ONLY) POWER DISPLAY...

  • Page 9

    FLAME SAFE START CHECK SIGNAL RM7800M/7840M SWITCHING MOTOR ACTION DAMPER MOTOR Fig. 4. Wiring subbase and sequence for RM7800M/RM7840M. RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES COMMON FOR DIRECT SPARK IGNITION (OIL OR GAS) MODULATE DAMPER MOTOR LOW FIRE START SWITCH 120V, 50/60 Hz POWER SUPPLY.

  • Page 10

    RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES PURGE TIMER SEQUENCE STATUS LED PANEL RESET BUTTON KEYBOARD DISPLAY MODULE (STANDARD ON RM7800E,G,L,M) SC RO LL Fig. 5. RM7800/RM7840 Relay Module exploded view. SAFETY SHUTDOWN Safety Shutdown (Lockout) occurs if any of the following occur during the indicated period: 1.

  • Page 11: Sequence Of Operation

    RM7800/RM7840E,L does not begin until the Lockout Interlock String and High Fire Switch are both closed. The blower motor output for the RM7800E is not energized until the High Fire Switch is closed. c. The Preignition Interlock input must remain closed throughout PREPURGE;...

  • Page 12

    RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES terminal 21. The RM7800/RM7840G has an interrupted or intermittent pilot valve, terminal 21, depending on the selection of configuration jumper 2. The RM7800/RM7840E,L has a fifteen-second interrupted pilot valve, terminal 21. All of the RM7800/RM7840s have a ten-second interrupted pilot valve/ignition, terminal 8.

  • Page 13

    PFEP is selected or during the first three seconds when a four second PFEP is selected, RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES allowing pilot-turn-down test and other burner adjustments to be made. This activates a fifteen second flameout timer that permits pilot flame adjustment without nuisance safety shutdowns.

  • Page 14

    RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES Jumper Number Description Pilot Flame Establishing Period (PFEP) Pilot Valve /Main Flame Establishing Period (MFEP) Start-up Interlock Check Pilot Valve /First Stage Oil Valve (Valve/Start) Terminal 21. A 30 second MFEP can be accomplished by adding a jumper wire between Terminals 19 and 5.

  • Page 15

    19-L2 RM7840E,L 14-13 RM7800E,G,L; 15-13 — RM7840E,G,L RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES Table 8. Static Checkout. Normal Operation Line voltage at Terminal 4. 1. Master Switch. 2. Power connected to the Master Switch. 3. Overload protection (fuse, circuit breaker, Line voltage at Terminal 6.

  • Page 16

    RM7800E,G,L,M; RM7840E,G,L,M 7800 SERIES RELAY MODULES RM7800/ Test RM7840 Test Models Jumpers Voltmeter RM7800M; 14-13 — RM7840M with open damper contacts.. RM7800M; 18-L2 RM7840M with open damper contacts.. RM7800M; 18-L2 RM7840M with open damper 4-13 contacts.. Final CAUTION Equipment Damage Hazard.

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Rm7800g

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