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ManualsBrandsHoneywell ManualsHeating SuppliesFlame Detector Relay w/ 2 SPDT Output

Table Of Contents

SPECIFICATION DATA

66-2031-3

® U.S. Registered Trademark

7800 SERIES

EC7823/RM7823 Relay Module

APPLICATION

The Honeywell EC7823/RM7823 is a microprocessor based

Flame Detector Relay that can be fitted with any 7800

SERIES amplifier to provide relay action from one relay with

2 single poles, double throw (spdt) circuits when flame is

present or not present. The EC7823/RM7823 Relay Module,

Q7800 Wiring Subbase and Amplifier are required to complete

the system. Options include Keyboard Display Module,

Personal Computer Interface, DATA CONTROLBUS

MODULE™, Remote Display Module, First-Out Expanded

Annunciator and COMBUSTION SYSTEM MANAGER™

Software.

Functions provided by the EC7823/RM7823 include flame

monitoring, system status indication, system or self-

diagnostics and troubleshooting.

The EC7823/RM7823 is a flame detector relay only. Suitable

primary control must be used to provide safe-start check,

safety lockout, load switching and other required in flame

safeguard systems.

FEATURES

• Safety features:

— Dynamic AMPLI-CHECK™.

— Dynamic self-check logic.

— Tamper resistant logic.

• Access for external electrical voltage checks.

• Application flexibility with interchangeable plug-in

flame amplifiers.

• Communication interface capability.

• Dependable, long-term operation provided by

microcomputer technology.

• System and device diagnostics are provided by an

optional 2 row by 20 column Vacuum Fluorescent

Display (VFD) located on the optional Keyboard

Display Module.

• Three (LEDs) for status information. See Fig. 1.

• EC7823/RM7823 provide either 0.8 or 3.0 second FFRT,

depending on amplifier selected.

• Local or remote annunciation of EC7823/RM7823

operation and fault information (optional).

• Nonvolatile memory; EC7823/RM7823 retains history

files after loss of power.

• Remote reset (optional).

• Report generation (optional).

• Shutter drive output.

• Burner controller data (optional):

— Flame signal strength.

— Total hours of operation.

— Total cycles of operation.

— Fault history providing the six most recent faults:

• Cycles of operation at the time of the fault.

• Fault message and code.

• Hours of operation at the time of the fault.

— Diagnostic information:

• Device type.

• Flame amplifier type.

• Flame failure response time.

• Manufacturing code.

• Software revision and version of EC7823/RM7823

and optional Keyboard Display Module.

Summary of content (8 pages)

PAGE 1
7800 SERIES EC7823/RM7823 Relay Module SPECIFICATION DATA FEATURES • Safety features: — Dynamic AMPLI-CHECK™. — Dynamic self-check logic. — Tamper resistant logic. • Access for external electrical voltage checks. • Application flexibility with interchangeable plug-in flame amplifiers. • Communication interface capability. • Dependable, long-term operation provided by microcomputer technology.
PAGE 2
7800 SERIES EC7823/RM7823 RELAY MODULE SPECIFICATIONS Electrical Rating see Tables 1 and 2: RM7823: Voltage and Frequency: 120 Vac (+10%/-15%), 50 or 60 Hz (±10%). EC7823: Voltage and Frequency: 220 to 240 Vac (+10%/-15%), 50 or 60 Hz (±10%). Power Dissipation: 10W maximum. Maximum Total Connected Load: 2000 VA. Fusing: Total Connected Load: 15A Fast Blow fuse, Type SC or equivalent. Approval Bodies: RM7823: Underwriters Laboratories Inc.: listed, file no. MP268, guide no. MCCZ.
PAGE 3
7800 SERIES EC7823/RM7823 RELAY MODULE Table 1. Terminal Ratings for RM7823A. Terminal No. Description Ratings G Flame Sensor Earth G Earth Grounda — L2(N) Line Voltage Common — — Grounda 3 Line Voltage Supply (L1) 120 Vac (+10/-15%), 50/60 Hz (±10%). 4-7 Unused — 8 9KA Common — 9 9KA1 N.O. 9.8 AFL, 58.8 ALR at 120 Vac. 10 9KA2 N.C. 1A Pilot Duty at 120 Vac. F(11) Flame Sensor 60 to 220 Vac, current limited. 12 Unused. — 13 9KB Common — 14 9KB1 N.C.
PAGE 4
7800 SERIES EC7823/RM7823 RELAY MODULE BURNER CONTROL 5 (127) 1 POWER FLAME ALARM RESET 5-1/4 (133) 5 (127) 1 M2649 REMOVE ONLY FOR TERMINAL TEST ACCESS. BURNER CONTROL 5 (127) POWER 1 FLAME ALARM RESET 6-3/32 (155) 5 (127) 1 REMOVE ONLY FOR TERMINAL TEST ACCESS. M2650 Fig. 1. Mounting dimensions of EC7823/RM7823 Relay Module and Q7800A,B Subbase in in. (mm).
PAGE 5
7800 SERIES EC7823/RM7823 RELAY MODULE Table 3. Flame Detection System. Plug-in Flame Signal Amplifiers Type Rectification Color Green Self-Checking No Model R7847A Dynamic R7847Bc AMPLI-CHECK™ Infrared Red Dynamic Self-Check R7847Ce,f No 7848A Applicable Flame Detectors Flame Failure Response Time Fuel Purple No R7849A Gas 3 sec. Gas, oil, Ultraviolet C7012A,Cb. coal. (Purple Peeper®) 0.8 or 3 sec. Gas 3 sec. Gas, oil, Ultraviolet C7012A,Cb. coal (Purple Peeper®) C7012E,F.
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Automation and Control Solutions Honeywell International Honeywell Europe S.A. Honeywell International Inc. 1985 Douglas Drive North Golden Valley, MN 55422 Control Products Honeywell Building 17 Changi Business Park Central 1 Singapore 486073 3 Avenue du Bourget 1140 Brussels Belgium 66-2031—3 Honeywell Limited-Honeywell Limitée 35 Dynamic Drive Scarborough, Ontario M1V 4Z9 G.R. Rev. 06-03 Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers.