EC7890 RM7890 · Edition 12.23
EN-2
This document covers the following 7800 Series Relay Modules:
1000-Series 2000-Series
• RM7890A1015 • RM7890B2014
• RM7890A1031 • RM7890A2015
• RM7890A1064 • RM7890B2030
• RM7890B1014 • RM7890A2031
• RM7890B1030 • RM7890B2055
• RM7890B1055 • RM7890A2064
• EC7890B1028
2 SPECIFICATIONS
2.1 Electrical Ratings:
Voltage and Frequency:
RM7890: 120 Vac (+10/-15%), 50/60Hz (±10%),
EC7890: 220-240 Vac (+10%/-15%), 50/60Hz (±10%).
Power Dissipation: 10W maximum.
Maximum Total Connected Load: 2000 VA.
Fusing Total Connected Load: 15A maximum, type SC or equiva-
lent, fast blow.
➔ For more Information, see page 5 (3.5.3 Table 3. Terminal
Ratings.).
2.2 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.
2.3 Approvals
Models Approvals
RM7890A1015, RM7890A1031,
RM7890B1014, RM7890B1030,
RM7890A2015, RM7890A2031,
RM7890B2014, RM7890B2030
SIL3, FM, cULus, FCC and
EAC
RM7890A1064, RM7890B1055,
RM7890A2064, RM7890B2055
SIL3, FM, cULus, FCC, EAC,
CE and UKCA
EC7890B1028
SIL3, FM, FCC, EAC, CE and
UKCA
Underwriters Laboratories Inc. Listed
File No. MP268. ANSI/UL 60730-2-5 / CSA C22.2 No. 60730-2-
5 - Automatic Electrical Controls for Household and Similar Use,
Part 2-5: Particular Requirements for Automatic Electrical Burner
Control Systems
Factory Mutual approved
Report No. 1V9A0.AF.
CE approved
– Gas Appliances Regulation: 2016/426/EU GAR
– Low Voltage Directive: 2014/35/EU LVD
– EMC Directive: 2014/30/EU EMC (Immunity Emission conform-
ity can only be verified in combination with the appliance)
– KIWA: certificate # 18GR0996/00, PIN 0063CT1466
Applicable Standards:
– EN298:2012 Automatic burner controls
– EN60335-2-102 Household and similar electrical appliances
– EN746-2 Industrial thermoprocessing - fuel handling systems
UKCA approved
– Gas Appliances Regulation: 2016/426/EU GAR
– Gas Appliances and Miscellaneous Amendment Regulations
2018 No 389
– Amendments to UK SI 2019/696 Product Safety and Metrolo-
gy
– Product Safety, Metrology and Mutual Recognition Agreement
(Amendment) (EU Exit) Regulations 2019 No 1246
– KIWA: certificate # 18GR0996/02, PIN 0063CT1466
Applicable Standards:
– BS EN298:2012 Automatic burner controls
SIL 3 Capable
SIL 3 Capable in a properly designed Safety Instrumented Sys-
tem. See certificate and assessment report onwww.exida.com.
EAC
TC N RU д-US.Aи3O.B.04013
FCC approved
Federal Communications Commission: Part 15, Class B, Emis-
sions.
3 INSTALLATION
WARNING
Fire or Explosion Hazard.
Can cause property damage, serious injury, or death.
– To prevent possible hazardous burner operation, verify safety
requirements each time a control is installed on a burner.
WARNING
Electrical Shock Hazard.
Can cause personal injury, death or equipment damage.
– Disconnect the power supply before beginning installation.
3.1 When Installing this Product...
1
Read these instructions carefully. Failure to follow them could
damage the product or cause a hazardous condition.
2
Check the ratings given in the instructions and marked on the
product to make sure the product is suitable for the application.
3
Installer must be a trained, experienced, flame safeguard
service technician.
4
After installation is complete, check out the product operation
as provided in these instructions.
IMPORTANT
1 Wiring connections for the relay modules are unique; refer
to page 8 (4.2.3 Fig. 2. Wiring subbase and operating
sequence chart for RM/EC7890) or the appropriate Specifica-
tions for individual subbase wiring.
2 Wiring must comply with all applicable codes, ordinances and
regulations.
3 Wiring must comply with NEC Class 1 (Line Voltage) wiring.
4 Loads connected to the RM/EC7890 must not exceed those
listed on the RM/EC7890 label or the Specifications; see page
5 (3.5.3 Table 3. Terminal Ratings.), page 5 (3.5.4 Table
4. Combinations for Terminals 8, 9, and 10.), and page 7
(4.2.1 Table 5. Static Checkout.).
5 Limits and interlocks must be rated to simultaneously carry
and break current to the ignition transformer, pilot valve, and
main fuel valve(s).
6 All external timers must be listed or componentrecognized by
authorities who have proper jurisdiction.
7 For on-off gas-fired systems, some authorities who have
jurisdiction prohibit the wiring of any limit or operating contacts
in series between the flame safeguard control and the main
fuel valve(s).
8 Two flame detectors can be connected in parallel with the
following exceptions:
• C7927 Ultraviolet Detector
• C7915 Infrared Detector
9 This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accord-
ance with the instructions, can cause interference with radio
communications. It has been tested and found to comply with
the limits for a Class B computing device of Part 15 of FCC
rules which are designed to provide reasonable protection
against such interference when operated in a commercial
environment. Operation of this equipment in a residential area
can cause interference, in which case, the users, at their own
expense, may be required to take whatever measures are
required to correct this interference.
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