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Honeywell EC7823A Installation Instructions Manual

7800 series relay modules
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APPLICATION
The Honeywell EC/RM7823A Relay Module is a
microprocessor based flame detector relay that can be fitted
with any 7800 SERIES Flame Amplifier to provide relay action
from one dpdt relay when flame is or is not present. The
EC/RM7823A system consists of a relay module, wiring
subbase and flame amplifier. Options include keyboard
display module (KDM), personal computer interface, Data
ControlBus Module™, remote display mounting and
Combustion System Manager™ Software.
Functions provided by the EC/RM7823A include flame
monitoring, self-diagnostics and troubleshooting.The
EC/RM7823A is a solid state replacement for the R7023B,C
Flame Detector Relays.
The EC7823/RM7823 is a flame detector relay only. A
switchable primary control must be used to provide safe-start
check, safety lockout, load switching and other functions
required in Flame Safeguard systems.
This document provides installation and static checkout
instructions. Other applicable publications are:
Form
Number
63-2278
Q7700A Network Interface Unit Product Data
65-0084
Q7800A,B 22-Terminal Wiring Subbase Product
Data
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
65-0109
R7824, R7847, R7848, R7849, R7851, 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 Test
® U.S. Registered Trademark
Copyright © 2003 Honeywell International Inc.
All Rights Reserved
7800 SERIES Relay Modules
Description
EC7823A;RM7823A
INSTALLATION INSTRUCTIONS
SPECIFICATIONS
Electrical Ratings, see Table 3:
Voltage and Frequency:
EC7823A: 220-240 Vac +10%/-15%, 50/60 Hz ±10%.
RM7823A: 120 Vac, +10%/-15%, 50/60 Hz, ± 10%.
Power Dissipation:
10W maximum.
Maximum Total Connected Load: 2000 VA.
Fusing: Total Connected Load: 15A, type SC, Fast Blow, or
equivalent.
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.
Approvals:
RM7823A:
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.
IRI Acceptable.
Federal Communications Commission:
Part 15, Class B, Emissions.
EC7823A:
Factory Mutual Approved: Report No. J.I.1V9A0.AF.
IRI Acceptable.
Federal Communications Commission:
Part 15, Class B, Emissions.
66-1086-2

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  Summary of Contents for Honeywell EC7823A

  • Page 1 Voltage and Frequency: with any 7800 SERIES Flame Amplifier to provide relay action EC7823A: 220-240 Vac +10%/-15%, 50/60 Hz ±10%. from one dpdt relay when flame is or is not present. The RM7823A: 120 Vac, +10%/-15%, 50/60 Hz, ± 10%.
  • Page 2: Installation

    EC7823A;RM7823A 7800 SERIES RELAY MODULES INSTALLATION Location Humidity When Installing this Product… Install the relay module where the relative humidity never 1. Read these instructions carefully. Failure to follow them reaches the saturation point. The relay module is designed to could damage the product or cause a hazardous condition.
  • Page 3 EC7823A;RM7823A 7800 SERIES RELAY MODULES (HOT) 120 Vac/220-240 Vac, TEST 50/60 Hz FLAME SIGNAL JACK MICROCOMPUTER PLUG-IN TEST FLAME RESET AMPLIFIER PUSHBUTTON RELAY DRIVE CIRCUIT STATUS LEDs CONTROL POWER SUPPLY POWER OPTIONAL KEYBOARD DISPLAY MODULE RS485 COMMON REMOTE COMMUNICATIONS RESET...
  • Page 4: Final Wiring Check

    EC7823A;RM7823A 7800 SERIES RELAY MODULES Q7800 COMMON NORMALLY (L1) CLOSED NORMALLY OPEN COMMON NORMALLY OPEN NORMALLY CLOSED FLAME DETECTOR (HOT) MASTER SWITCH 120V, 50/60 Hz (RM7823); 220-240V, 50/60 Hz (EC7823) POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
  • Page 5 9KB2 N.O. 1A Pilot Duty at 120 Vac; also rated for 5V control circuits. 16-21 Unused — Shutter 120 Vac, 0.5A. See Table 2. Table 4. Terminal Ratings for EC7823A. Terminal Number Description Ratings — Flame Sensor Ground Earth G —...
  • Page 6: Mounting Ec/Rm7823A Relay Module

    EC7823A;RM7823A 7800 SERIES RELAY MODULES Mounting EC/RM7823A Relay Module 3. Make sure no subbase wiring is projecting beyond the terminal blocks. Tuck in wiring against the back of the 1. Mount the EC/RM7823A on the Q7800 Subbase subbase so it does not interfere with the knife blade vertically, or mount horizontally with the knife blade terminals or bifurcated contacts.
  • Page 7: Static Checkout

    EC7823A;RM7823A 7800 SERIES RELAY MODULES OPERATION Static Checkout After checking all wiring, perform this checkout before installing the EC/RM7823A on the subbase. These tests verify Sequence of Operation the Q7800 Wiring Subbase is wired correctly, and the external controllers, limits, interlocks, actuators, valves, transformers, The EC/RM7823A has the following operating sequences, motors and other devices are operating properly.
  • Page 8: General Instructions

    EC7823A;RM7823A 7800 SERIES RELAY MODULES General Instructions 9. Check all wiring for correct connections, tight terminal screws, correct wire, and proper wiring techniques. 1. Perform all applicable tests listed in Static Checkout, Replace all damaged or incorrectly sized wires and Table 6, in the order listed.

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Rm7823a