Honeywell EC7850A1072 - User Manual

INSTALLATION INSTRUCTIONS
32-00198-01
SIL
3
Capable
0063
EC7830A, RM7830A,
EC7850A, RM7850A
7800 SERIES Relay Modules
APPLICATION
The Honeywell EC/RM7830A and EC/RM7850A are
microprocessor-based integrated burner controls for
automatically fired gas, oil, or combination fuel single
burner full modulation (EC/RM7850A) or on/off
(EC/RM7830A) applications. The EC/RM7830A;
EC/RM7850A system consists of a relay module, subbase,
amplifier, and purge card. Options include keyboard
display module (KDM), Data ControlBus™ Module and
remote display mounting.
Functions provided by the EC/RM7830A and
EC/RM7850A include automatic burner sequencing,
flame supervision, system status indication, system or
self-diagnostics and troubleshooting. Text readout on the
Keyboard Display Module is available in various
languages.
This document covers the following 7800 Series Relay
Modules:
EC7830A1033
EC7830A1066
EC7850A1072
EC7850A1080
EC7850A1122
RM7830A1003
RM7830A1029
RM7850A1001
RM7850A1019
EC7830A2033
EC7830A2066
EC7850A2072
EC7850A2080
EC7850A2122
RM7830A2003
RM7830A2029
RM7850A2001
RM7850A2019
This document provides installation and static checkout
instructions. Other applicable publications are:
Form
Number Description
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, R7861,
R7886 Flame Amplifiers for the 7800
SERIES 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 Instructions
65-0131 221818A Extension Cable Assembly
Product Data
65-0228 S7810B Multi-Drop Switch Module
Product Data
65-0229 7800 SERIES Relay Modules Checkout
and Troubleshooting Product Data
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

Summary

SPECIFICATIONS

Technical Details and Compliance

Covers ratings, SIL 3 capability, approvals, directives, and standards.

INSTALLATION

General Guidelines, Warnings, and Notes

Provides safety precautions, installation advice, and continuous operation notes.

WIRING SUBBASE

Subbase Mounting and Module Compatibility

Wiring Precautions and Requirements

Covers electrical safety, wiring compliance, and routing recommendations.

FINAL WIRING CHECK

Pre-installation Wiring Verification

GENERAL INSTRUCTIONS

Safety Precautions and Equipment Recommendations

Essential safety warnings and recommended equipment for testing.

Static Checkout Procedure

PRINCIPAL TECHNICAL FEATURES

Safety Shutdown Conditions (Lockout)

Lists conditions that trigger a safety shutdown or lockout.

OPERATION

Safety Shutdown Scenarios

Details specific conditions leading to lockout during various operational periods.

Sequence of Operation Overview

OPERATING MODES

Normal Start-Up Purge

Ignition Trials and Sequence States

Covers preignition, safety times, pilot stabilization, main trial, and run modes.

SETTINGS AND ADJUSTMENTS

Site-Configurable Jumper Settings

Describes jumper options that configure relay module behavior and safety features.

Honeywell EC7850A1072 Specifications

General

Brand	Honeywell
Model	EC7850A1072
Category	Relays
Language	English