Installation - Honeywell 7800 Series Installation Instructions Manual

Relay modules
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RM7890A,B/EC7890A,B 7800 SERIES RELAY MODULES
Approvals:
RM7890A,B:
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 - only RM7890A1064, RM7890B1055,
RM7890A2064, RM7890B2055
EAC: TC N RU д-US.Aи3O.B.04013
Federal Communications Commission: Part 15, Class B,
Emissions.
EC7890:
CE approved
EAC: TC N RU д-US.Aи3O.B.04013
Federal Communications Commission: Part 15,
Class B, Emissions.
CE approvals cover:
Gas Appliances Regulation: 2016/426/EU GAR
Low Voltage Directive: 2014/35/EU LVD.
EMC Directive: 2014/30/EU EMC (Immunity Emission
conformity can only be verified in combination with
the appliance).
KIWA: certificate # 18GR0996/00, PIN 0063CT1466
Applicable Standards:
EN 298:2012 Automatic burner controls
EN 60335-2-102 Household and similar electrical
appliances
EN 746-2 Industrial thermoprocessing - fuel handling
systems
RM7890A1064, RM7890B1055, RM7890A2064
NOTE:
and RM7890B2055

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.
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.
32-00157-03
are rated cULus and CE.
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 Fig. 2 or the appropriate Specifications for indi-
vidual 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 Specifica-
tions; see Tables 3, 4, and 5.
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 component-
recognized 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
accordance 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.
10.This digital apparatus does not exceed the Class B lim-
its for radio noise for digital apparatus set out in the
Radio Interference Regulations of the Canadian
Department of Communications.
Location
Humidity
Install the relay module where the relative humidity never
reaches the saturation point. The relay module is designed
to operate in a maximum 85% relative humidity
continuous, noncondensing, moisture environment.
Condensing moisture can cause a safety shutdown.
Vibration
Do not install the relay module where it can be subjected
to vibration in excess of 0.5G continuous maximum
vibration.
Weather
The relay module is not designed to be weather tight.
When installed outdoors, protect the relay module in an
approved weather-tight enclosure.
2

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