Honeywell 7800 Series Installation Instructions Manual

EC7820A
7800 SERIES Relay Modules
APPLICATION
The Honeywell EC7820 is a microprocessor-based
integrated burner control for automatically fired gas, oil, or
combination fuel single burner atmospheric with fan
(EC7820A) applications. The EC7820 Relay Module
system consists of a relay module, wiring subbase,
amplifier, and purge card. Options include: keyboard
display module (KDM), Data ControlBus Module™, remote
display mounting and Modbus™ Module.
Functions provided by the relay modules include
automatic burner sequencing, flame supervision, system
status indication, system or self diagnostics and
troubleshooting.
This document covers the following 7800 Series Relay
Modules:
EC7820A1026/U
EC7820A2026/U
This document provides installation and static checkout
instructions. Other applicable publications are:
Form
Number
32-00110 S7800A2142 4-line LCD Keyboard Display
Module Product Data
32-00166 204729A/C KDM NEMA4 Covers for 4-line
LCD KDM
32-00235 R7824, R7847, R7848, R7849, R7851, R7861,
R7886 Flame Amplifiers for the 7800 SERIES
Product Data (for CE, Modbus module
S7810M1029 only)
65-0084 Q7800A,B 22-Terminal Wiring Subbase
Product Data
65-0089 ST7800A Plug-In Purge Timer Installation
Instructions.
65-0090 S7800A Keyboard Display Module Product
Data.
65-0091 S7810A Data ControlBus Module™ Product
Data
65-0097 221729C Dust Cover Packing Sheet.
Description
SIL 3
Capable
0063
INSTALLATION INSTRUCTIONS
Form
Number
65-0131 221818A Extension Cable Assembly Product
Data
65-0229 7800 SERIES Relay Modules Checkout and
Test
65-0249 S7810M ModBus Module (For CE , Modbus
module S7810M1029 only).
65-0295 50023821-001/2 KDM NEMA4 Covers for
classic 2-line VFD KDM
SPECIFICATIONS
Electrical Ratings, See Table 4:
Voltage and Frequency: 220-240 Vac (+10/-15%), 50/
60 Hz (±10%).
Power Dissipation: 10W maximum.
Maximum Total Connected Load: 2000 VA.
Fusing Total Connected Load: 15A maximum, type SC
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.
SIL 3 Capable:
SIL 3 Capable in a properly designed Safety Instru-
mented System. See form number 65-0312 for Cer-
tificate Agreement.
Approvals
Federal Communications Commission:
Part 15, Class B, Emissions.
Exida: IEC/EN 61508:2010 Parts 1-7, SIL 3 capable.
AGA Certificate # 5097
EAC Russia
Description
32-00197-01