Datasheet Content
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.
• 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
APPLICATION operation and fault information (optional).
• Nonvolatile memory; EC7823/RM7823 retains history
The Honeywell EC7823/RM7823 is a microprocessor based files after loss of power.
Flame Detector Relay that can be fitted with any 7800
SERIES amplifier to provide relay action from one relay with • Remote reset (optional).
2 single poles, double throw (spdt) circuits when flame is • Report generation (optional).
present or not present. The EC7823/RM7823 Relay Module,
Q7800 Wiring Subbase and Amplifier are required to complete • Shutter drive output.
the system. Options include Keyboard Display Module, • Burner controller data (optional):
Personal Computer Interface, DATA CONTROLBUS
MODULEª, Remote Display Module, First-Out Expanded — Flame signal strength.
Annunciator and COMBUSTION SYSTEM MANAGERª — Total hours of operation.
Software. — Total cycles of operation.
— Fault history providing the six most recent faults:
Functions provided by the EC7823/RM7823 include flame • Cycles of operation at the time of the fault.
monitoring, system status indication, system or self- • Fault message and code.
diagnostics and troubleshooting. • Hours of operation at the time of the fault.
— Diagnostic information:
The EC7823/RM7823 is a flame detector relay only. Suitable • Device type.
primary control must be used to provide safe-start check, • Flame amplifier type.
safety lockout, load switching and other required in flame • Flame failure response time.
safeguard systems. • Manufacturing code.
• Software revision and version of EC7823/RM7823
and optional Keyboard Display Module.
® U.S. Registered Trademark
Copyright © 2001 Honeywell • All Rights Reserved
66-2031-2
7800 SERIES EC7823/RM7823 RELAY MODULE
SPECIFICATIONS
Electrical Rating see Tables 1 and 2: QS7800A1001 ControlBus Module, standard.
RM7823: QS7800B1000 ControlBus Module, multidrop.
Voltage and Frequency: 120 Vac (+10%/-15%), QS7800C1009 ControlBus Module,
50 or 60 Hz (±10%). data acquisition modules.
EC7823: QS7850A1006 ControlBus Module,
Voltage and Frequency: 220 to 240 Vac (+10%/-15%), General Purpose Interface.
50 or 60 Hz (±10%). ZM7850A1001 Combustion System Manager™ software.
Power Dissipation: 10W maximum. ZS7810A1009 Data ControlBus™ Module
Maximum Total Connected Load: 2000 VA. (if no KDM is used).
Fusing: Total Connected Load: 20A maximum, fast-acting S7810B1007 Data ControlBus™ Module,
fuse. Multi-Drop Switch Module.
S7810M ModBus™ Module.
Approval Bodies:
RM7823: Miscellaneous:
Underwriters Laboratories Inc.: listed, file no. MP268, A7800A1002 7800 SERIES Tester.
guide no. MCCZ. S7820A1007 Remote Reset.
Canadian Standards Association: certified, LR9S329-3. S7830A1005 Expanded Annunciator, 120 Vac, 50/60 Hz.
Factory Mutual: Report J.I.OYOA9.AF. 203541 Data ControlBus Connector, 5-wire.
IRI: acceptable. 203765 Remote Display Mounting Bracket.
Federal Communications Commission: Part 15, 221729 Dust Cover, Relay Module.
Class B Emissions. 204718A Keyboard Display Module Cover, NEMA 4, clear.
EC7823: 204718B Keyboard Display Module Cover, NEMA 1, clear.
Factory Mutual: Report J.1.OYOA9.AF 204718C Keyboard Display Module Cover, NEMA 4,
clear with reset button.
Mounting: 205321B Flush Display mounting kit.
Q7800A for panel mount. 221818A Extension Cable, display, 5 ft (1524 mm).
Q7800B for wall or burner mount. 221818C Extension Cable, display, 10 ft (3048 mm).
123514A Rectification Flame Simulator.
Required Components: 203659 Ultraviolet Flame Simulator.
Plug-in Flame Signal Amplifier, see Table 2. 203968A Remote Display Power Supply, 13 Vdc, plug-in.
Q7800A, Q7800B1003 or Q7800B1011 (wall mount).
Environmental Ratings:
Accessories: Ambient Temperature:
Keyboard Display Modules (KDM): Operating: -40°F to +140°F (-40°C to +60°C).
S7800A1001 English language. Storage: -40°F to +150°F (-40°C to +66°C).
S7800A1035 French language. Humidity: 85 percent RH continuous, noncondensing.
S7800A1043 German language. Vibration: 0.5G environment.
S7800A1050 Italian language.
S7800A1068 Spanish language. Dimensions: Refer to Fig. 1.
S7800A1118 Katakana (Japanese) language
S7800A1126 Portuguese language. Weight: EC7823/RM7823 with Dust Cover:
S7800B1009 Chinese language. 1 pound 13 ounces, unpacked.
Communications: IMPORTANT
Q7700A1014 Network Interface Unit, 120 Vac, Flame Detection System available for use with
50/60 Hz applications, external modem required. the EC7823/RM7823. To select your Plug-in
Q7700B1004 Network Interface Unit with universal Flame Signal Amplifier applicable Flame Detector,
100 to 250 Vac, 50/60 Hz external power supply, see Table 3.
external modem required.
66-2031—2 2
7800 SERIES EC7823/RM7823 RELAY MODULE
Table 1. Terminal Ratings for RM7823A.
Terminal No. Description Ratings
G a —
Flame Sensor Ground
Earth G Earth Grounda —
L2(N) Line Voltage Common —
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. 1A Pilot Duty at 120 Vac; also rated for 5V control circuits.
15 9KB2 N.O. 1A Pilot Duty at 120 Vac; also rated for 5V control circuits.
16-21 Unused. —
22 Shutter 120 Vac, 0.5A.
a
The RM7823 must have an earth ground providing a connection between the wiring subbase and the control panel or the
equipment. The earth ground wire must be capable of conducting the current to blow the 20A fuse (or breaker) in the event of
an internal short circuit. The RM7823 needs a low impedance ground connection to the equipment frame which, in turn, needs
a low impedance connection to earth ground. For a ground path to be low impedance at RF frequencies, the connection must
be made with minimum length connections having maximum surface areas. Wide straps or brackets rather than leadwires are
preferred. Be careful to verify that mechanically tightened joints along the ground path, such as pipe or conduit threads or
surfaces held together with fasteners, are free of nonconductive coatings and are protected against mating surface corrosion.
Table 2. Terminal Ratings for EC7823A.
Terminal No. Description Ratings
G a…
