Honeywell EC7830A - User Manual

® U.S. Registered Trademark
Copyright © 1998 Honeywell Inc. • All Rights Reserved
INSTALLATION INSTRUCTIONS
66-1092-2
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),
Personal Computer Interface, Data ControlBus Module™,
remote display mounting and Combustion System Manager®
Software.
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 English, Spanish, Portuguese, Katakana
(Japanese), French, Chinese, German, and Italian languages.
This document provides installation and static checkout
instructions. Other applicable publications are:
63-2278: Q7700 Network Interface Unit 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.
65-0228: S7810B Multi-Drop Switch Module Product Data.
65-0095: S7820 Remote Reset Module Product Data.
65-0097: 221729C Dust Cover Packing Instructions.
65-0102: ZM7850A Combustion System Manager®
Operating Instructions.
65-0109: R7824, R7847, R7848, R7849, R7861, R7886
Flame Amplifiers for the 7800 SERIES
Product Data.
65-0131: 221818A Extension Cable Assembly Product
Data.
65-0229: 7800 SERIES Relay Modules Checkout and
Troubleshooting Product Data.
SPECIFICATIONS
Electrical Ratings (See Tables 3A, 3B, 3C and 3D):
Voltage and Frequency:
RM7830A and RM7850A:
120 Vac (+10/-15%), 50/60 Hz (±10%).
EC7830A and EC7850A:
220/240 Vac (+10%/-15%), 50/60 Hz (±10%)
Power Dissipation: 10W maximum.
Maximum Total Connected Load: 2000 VA.
Fusing Total Connected Load: 20A maximum, type FRN 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.
Approvals:
RM7830A and RM7850A:
Underwriters Laboratories Inc. Listed: File No. MP268,
Guide No. MCCZ.
Canadian Standards Association Certified: LR9S329-3.
Factory Mutual Approved: Report No. J.I.1V9A0.AF.
Industrial Risk Insurers: Acceptable.
Federal Communications Commission: Part 15,
Class B, Emissions.
EC7830A and EC7850A: Factory Mutual Approved.
These products also comply with the following European
directives:
Gas Appliance Directive: 90/396/EEC.
Low Voltage Directive: 73/23/EEC.
EMC Directive: 89/336/EEC.
GASTEC: CE-63AP3070/1.
Lloyds Register Approval.
Oil appliances:
EC7830A: DIN-5F 106/96.
EC7850A: DIN-5F 107/96.
These products are approved according to EN298, “Automatic
gas burner systems for gas burners and gas burning
appliances with or without fans.”
Please note the following to comply with EN60730 for remote
mounting of the KDM and/or remote reset module. It is
necessary to provide electrical separation using insulation at
least equivalent to double or reinforced insulation. This can be
accomplished by either:
1. Optically isolating the communication and/or remote
reset lines from the control cabinet or
2. Providing physical separation from the communication
and/or remote reset lines using electrical conduit and a
204718a Remote Display Cover Assembly or other
suitable enclosure that meets ip40 class of protection.

Summary

Application

Installation Instructions

Location

Describes where to install the relay module for optimal performance and safety.

Humidity

Specifies humidity limits to prevent condensation and ensure reliable operation.

Vibration

Details vibration limits to avoid damage to the relay module.

Weather

Advises on protecting the module from outdoor weather conditions.

Mounting Wiring Subbase

Instructions for mounting the wiring subbase securely and correctly.

Specifications

Recommended Wire Sizes

Provides guidance on recommended wire sizes and part numbers for various applications.

Recommended Grounding Practices

Details proper grounding techniques for safety and performance.

Operation

Sequence of Operation

Describes the operating sequences of the relay module, including Initiate, Standby, and Purge.

Initiate

Details the conditions and duration of the INITIATE sequence when the module is powered on.

Normal Start-Up Purge

Covers the PURGE timing and conditions for starting the burner sequence.

Ignition Trials

Outlines the preignition and safety timing sequences for igniting the burner.

Settings and Adjustments

Selectable Site-Configurable Jumpers

Explains the three site-configurable jumper options and their effect on safety features.

Flame Signal Measurement

Instructions on measuring the flame signal as defined by flame amplifier specifications.

Honeywell EC7830A Specifications

General

Flame Rod Input	Yes
Flame Amplifier Failure	Yes
Application	Flame Safeguard
Approvals, Canadian Standards Association	CSA Certified
Voltage	120 VAC
Frequency	50/60 Hz
Product Type	Flame Safeguard Control