Honeywell 7800 Series Operating Instructions Manual
Relay modules
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Also See for 7800 Series:
- Product data (64 pages) ,
- Manual (56 pages) ,
- Installation instructions manual (40 pages)
Table of Contents
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7800 seRIes Relay Modules
RM7890A, B/eC7890B
Contents
1 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Static Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
5 Principal Technical Features . . . . . . . . . . . . . . . . . . . . .10
6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
7 Settings and Adjustments. . . . . . . . . . . . . . . . . . . . . . . 11
8 Safety and Security . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
9 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
oPeRAtInG InstRUCtIons
1 APPLICAtIon
The Honeywell RM7890A,B,C/EC7890B Relay Modules are
microprocessor based integrated burner controls for on/off auto-
matically fired gas, oil, or combination fuel single burner applica-
tions. The RM/EC7890 Relay Module is intended to replace the
RA890F,G, H Protectorelay® Primary Control. The RM/EC7890
System consists of a relay module, subbase, and amplifier. Op-
tions include: 2- line VFD (see document 65-0090) or 4-line LCD
(see document 32-00110) Keyboard Display Module, and remote
display mounting.
Functions the RM/EC7890 provides include automatic burner
on/off sequencing, flame supervision, system status indication,
system or self-diagnostics and troubleshooting.
This document provides installation and static checkout instruc-
tions. Other applicable publications are:
Publication
no.
S7800A2142 4-line LCD Keyboard Display
32-00110
32-00167
Q7800A/B Wiring Subbase Product Data
204729A/C KDM NEMA4 Covers for 4-line
32-00166
S7800A 2-line Keyboard Display Module
65-0090
S7810A Data ControlBus Module™ Product
65-0091
65-0095
S7820 Remote Reset Module Product Data.
65-0097
221729C Dust Cover Packing Instructions.
Flame Amplifiers for the 7800 SERIES Product
65-0109
221818A Extension Cable Assembly Product
65-0131
7800 SERIES Relay Modules Checkout and
65-0229
65-0249
Q7800F Adapter Subbase for Connecting 7800
32-00261M
· Edition 12.23 · 32-00157 · EN
Description
Module Product Data
LCD KDM
Product Data.
Data.
Data.
Data
Troubleshooting.
S7810M ModBus Module.
SERIES to Q270 Subbase
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Table of Contents
Related Manuals for Honeywell 7800 Series
Summary of Contents for Honeywell 7800 Series
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Page 1: Table Of Contents
9 Disposal ........11 65-0097 221729C Dust Cover Packing Instructions. Flame Amplifiers for the 7800 SERIES Product 65-0109 Data. -
Page 2: Specifications
This document covers the following 7800 Series Relay Modules: sIL 3 Capable SIL 3 Capable in a properly designed Safety Instrumented Sys- 1000-series 2000-series tem. See certificate and assessment report onwww.exida.com. • RM7890A1015 • RM7890B2014 • RM7890A1031 • RM7890A2015 TC N RU д-US.Aи3O.B.04013 •... - Page 3 10 This digital apparatus does not exceed the Class B limits for This indicates that you must a) change out the subbase to a radio noise for digital apparatus set out in the Radio Interfer- Q7800A2005/U or b) choose a compatible 1000 series relay ence Regulations of the Canadian Department of Communi- module.
- Page 4 3.5.1 table 1: Recommended Wire sizes and Part numbers. Application Recommended Wire size Recommended Part numbers 14, 16, or 18 AWG (0.75, 1.5 or 2.5 mm ) copper conduc- Line Voltage Terminals TTW60C, THW75C, THHN90C. tor, 600 volt insulation, moisture-resistant wire. Keyboard Display 22 AWG (0.34 mm ) two-wire twisted pair with ground, or...
- Page 5 3.5.3 table 3. terminal Ratings. terminal number Description Ratings (RM7890A,B,C) Ratings (eC7890B) Flame Sensor Ground – – Earth G Earth Ground – – L2(N) Line Voltage Common – – 120 Vac (+10%/-15%), 50 or 220-240 Vac (=10%/-15%), 50 Line Voltage Supply (L1) 60 Hz (±10%).
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Page 6: Static Checkout
3.6 Final Wiring Check 4.1 equipment Recommended 1 Check the power supply circuit. The voltage and frequency 1 Voltmeter (1M ohm/volt minimum sensitivity) set on the 0 to tolerance must match those of the RM/EC7890. A separate 300 Vac scale. 2 Two jumper wires, No. - Page 7 4.2.1 table 5. static Checkout. test Voltme- If operation is Abnormal, Check the Items test Jumpers normal operation Listed Below 1. Master switch. 2. Power connected to the master switch. – 3-L2 Line Voltage 3. Overload protection (fuse, circuit breaker, etc.) has not opened the power line.
- Page 8 4.2.3 Fig. 2. Wiring subbase and operating sequence chart for RM/eC7890 Q7800 FOR DIRECT SPART IGNITION (OIL OR GAS) IGNITION TRANSFORMER (HOT) (L1) MAIN VALVE MASTER LINE VOLTAGE SWITCH ALARM BURNER CONTROLLER/LIMITS INTERMITTENT PILOT/IGNITION MAIN FUEL VALVE(S) IGNITION FLAME DETECTOR 4/10 SAFE- PFEP...
- Page 9 3 Make sure no subbase wiring is projecting beyond the terminal 4.3 Mounting RM/eC7890 Relay Module 1 Mount the RM/EC7890 vertically on the Q7800 Subbase, or blocks. Tuck in wiring against the back of the subbase so it mount horizontally with the knife blade terminals pointing down. does not interfere with the knife blade terminals or bifurcated When mounted on the Q7800A, the RM/EC7890 must be in an contacts.
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Page 10: Principal Technical Features
6.1.2 standby 5 PRInCIPAL teCHnICAL FeAtURes The RM/EC7890 is ready to start an operating sequence when The RM/EC7890 provides all customary flame safeguard functions the operating control input (terminal 6) recognizes a call for heat. as well as significant advancements in safety, annunciation, and The burner switch, limits, operating limit control and all microcom- system diagnostics. -
Page 11: Settings And Adjustments
Modbus RS-485 protocols do not support security features. For the Honeywell proprietary DDL interface - only DDL devices (S7800, S7810) shall be connected to the Burner Controller DDL line. - Page 12 FoR MoRe InFoRMAtIon The Honeywell Thermal Solutions family of products includes Honeywell Combustion Safety, Eclipse, Exothermics, Hauck, Kromschröder and Maxon. To learn more about our products, visit ThermalSolutions. honeywell.com or contact your Honeywell Sales Engineer. Honeywell Thermal Solutions (HTS) 2101 CityWest Blvd...