Installation; Mounting Wiring Subbase - Honeywell 7800 SERIES Instruction Manual

EC7830A, RM7830A, EC7850A, RM7850A 7800 SERIES RELAY MODULES
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.

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.
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.
WARNING
Fire or Explosion Hazard.
Can cause severe injury, death or property
damage.
Carefully follow safety requirements when installing a
burner control.
WARNING
Electrical Shock Hazard or Equipment Damage
Hazard.
Can cause severe injury, death or equipment
damage.
Disconnect power supply before beginning installation.
More than one disconnect may be involved.
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.
66-1092—06
IMPORTANT
1. Wiring connections for the relay modules are unique;
refer to Fig. 3 and 4 or the appropriate Specifications for
individual subbase wiring.
2. Wiring must comply with all applicable codes, ordi-
nances and regulations.
3. Wiring must comply with NEC Class 1
(Line Voltage) wiring.
4. Loads connected to the EC/RM7830A and
EC/RM7850A must not exceed those listed on the relay
module label or the Specifications; see Table 1.
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 exception of C7015 Infrared Flame Detectors.
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
limits for radio noise for digital apparatus set out in the
Radio Interference Regulations of the Canadian
Department of Communications.

Mounting Wiring Subbase

1. Mount the subbase in any position except horizontally
with the bifurcated contacts pointing down. The
standard vertical position is recommended. Any other
position decreases the maximum ambient temperature
rating.
2. Select a location on a wall, burner or electrical panel.
The Q7800 can be mounted directly in the control
cabinet. Be sure to allow adequate clearance for
service, installation, access or removal of the relay
module, expanded annunciator, KDM, flame amplifier,
flame amplifier signal voltage probes, run/test switch,
electrical signal voltage probes and electrical field
connections.
3. For surface mounting, use the back of the subbase as a
template to mark the four screw locations, then drill the
pilot holes.
4. Securely mount the subbase using four no. 6 screws
(not provided).
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