Honeywell ec7890b User Manual

INSTALLATION INSTRUCTIONS
32-00157-03
EC7890B1028, RM7890A1064,
RM7890B1055, RM7890A2064,
or RM7890B2055 only.
SIL
3
Capable
RM7890A,B/EC7890A,B
7800 SERIES Relay Modules
APPLICATION
The Honeywell RM7890A,B,C/EC7890A,B Relay Modules
are microprocessor based integrated burner controls for
on/off automatically fired gas, oil, or combination fuel
single burner applications. 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. Options 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
instructions. Other applicable publications are:
This document covers the following 7800 Series Relay
Modules:
SPECIFICATIONS
Electrical Ratings (See Table 3):
Voltage and Frequency:
RM7890: 120 Vac (+10/-15%), 50/60 Hz (±10%).
EC7890: 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, fast blow.
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, noncon-
densing.
Vibration: 0.5G environment.
SIL 3 Capable
SIL 3 Capable in a properly designed Safety Instrumented
System. See form number 65-0312 for Certificate
Agreement.
Publication
No. Product
32-00110 S7800A2142 4-line LCD Keyboard Display
Module Product Data
32-0167 Q7800A/B Wiring Subbase Product Data
32-0166 204729A/C KDM NEMA4 Covers for 4-line
LCD KDM
65-0090 S7800A 2-line 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.
65-0109 Flame Amplifiers for the 7800 SERIES
Product Data.
65-0131 221818A,C Extension Cable Assembly
Product Data.
65-0229 7800 SERIES Relay Modules Checkout and
Troubleshooting.
65-0249 S7810M ModBus Module.
1000-Series 2000-Series
• RM7890A1015 • RM7890B2014
• RM7890A1031 • RM7890A2015
• RM7890A1064 • RM7890B2030
• RM7890B1014 • RM7890A2031
• RM7890B1030 • RM7890B2055
• RM7890B1055 • RM7890A2064
• EC7890B1028

Honeywell ec7890b Specifications

General

Brand	Honeywell
Model	ec7890b
Category	Relays
Language	English