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8. Two flame detectors can be connected in parallel
with the exception of C7915 Infrared Flame Detec-
tors, C7927 or C7961 Ultraviolet Flame Detectors
and C7962 Visible Light 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
limits 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.
Mounting of Remote Keyboard or Reset
Module
To comply with CE 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.
2. Providing physical separation from the communica-
tion and/or remote reset lines using electrical con-
duit and a 204718A Remote Display Cover Assembly
or other suitable enclosure that meets NEMA 4 class
of protection.
EC7830A, RM7830A, EC7850A, RM7850A 7800 SERIES RELAY MODULES
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 in an electrical
panel (required for all European devices). The
Q7800 can be mounted directly in the control cabi-
net. Be sure to allow adequate clearance for service,
installation, access or removal of the 7800 SERIES
Relay Module, KDM, flame amplifier, flame amplifier
signal voltage probes, Run/Test Switch, electrical
signal voltage probes and electrical field connec-
tions.
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).
NOTE: You might receive an error code 101 (via KDM) if
one of the following conditions exist:
a. The screws securing the relay to the subbase are
b. If you attempt to place a 2000 series relay on a
Relay Module and Subbase
Compatiblity
NOTE: There are several different subbase models that
can be purchased. It is important to note which
subbase is compatible with the relay module
when purchasing new, repair or replacement
parts.
Series 1000 Relay Modules
All relay product codes that start with a 1 (example:
RM7830G1003/U) can be used with existing subbase
Q7800A1003/U and Q7800A1005/U.
Series 2000 Relay Modules
All relay product codes that start with a 2 (example:
RM7840G2004/U) must be used with subbase
Q7800A2003/U and Q7800A2005/U.
Subbase Compatibility
Any Relay Module in the 1000 Series with a Software
Revision level number starting with a "5" or greater will be
compatible with all subbase models both installed and
newly purchased. This includes (Q7800A1005/U,
Q7800B1003/U), and the 2000 Series subbases
(Q7800A2005/U, Q7800B2003/U).
See Fig. 1 for Software Revision Level number location on
the label (located on the rear of the relay module).
3
not tight enough, re-tighten to insure there is no
gap between the relay and the subbase.
non-compatible 1000 series subbase, this indi-
cates that you must:
• Change out the subbase to a Q7800A2003/U
or Q7800A2005/U
• Choose a compatible 1000 series relay
module
32-00198—01
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