Mounting Wiring Subbase; Wiring Subbase - Honeywell RM7800L1087 Installation Instructions Manual

IMPORTANT
1. Wiring connections for the relay modules are
unique; therefore, refer to Figs. 3, 4, 6, 7, or
Appendix B for proper subbase wiring.
2. Wiring must comply with all applicable codes,
ordinances and regulations.
3. Wiring must comply with NEC Class 1 (Line Volt-
age) wiring.
4. Loads connected to the RM7800L/40G,L, EC7840L
must not exceed those listed on the
RM7800L/40G,L, EC7840L label or the Specifica-
tions, see Table 3.
5. Limits and interlocks must be rated to simultane-
ously carry and break current to the ignition trans-
former, pilot valve, and main fuel valve(s).
6. All external timers must be listed or component
recognized by authorities who have jurisdiction for
the specific purpose for which they are used.
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 Infrared Flame Detectors
(C7015, C7915), Ultraviolet (C7927, C7961), or Visi-
ble (C7962).
9. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and
used in accordance with the instructions, may
cause interference to 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 may 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 Cana-
dian 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 percent relative humidity
continuous, noncondensing, moisture environment.
Condensing moisture may cause a safety shutdown.
Vibration
Do not install the relay module where it could 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 using
an approved weather-tight enclosure.
RELAY MODULES WITH VALVE PROVING

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
servicing, installation, access or removal of the
RM7800L/40G,L, EC7840L, Expanded Annunciator,
Keyboard Display Module, 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. Drill
the pilot holes.
4. Securely mount the subbase using four no. 6 screws.

Wiring Subbase

NOTE: There are now two different subbase models that
can be purchased. It is important to note which
subbase is compatible with the relay module
when purchasing repair or replacement parts.
Series 1000 Subbase
All relay product codes that start with a 1 (example:
RM7840G1014/U) needs to be used with existing
subbase Q7800A1005/U.
Series 2000 Subbase
All relay product codes that start with a 2 (example:
RM7840G2014/U) needs to be used with subbase
Q7800A2005/U.
Subbase Compatibility
Any relay module in the updated 1000 series will be fully
backward compatible with any legacy subbase
(Q7800A1005/U) installed in the field as well as all newly
purchased updated 1000 and 2000 series relay modules.
Any relay module in the new 2000 series will only be able
to be installed on subbase Q7800A2005/U, and will not
be backward compatible with any Q7800A1005/U legacy
subbases already installed in the field.
IMPORTANT
Make sure to check the relay model number and
check the subbase compatibly prior to ordering or
attempting a new installation or field upgrade.
WARNING
Electrical Shock Hazard.
Can cause serious injury, death or equipment
damage.
Disconnect the power supply before beginning
installation to prevent electrical shock, equipment
and control damage. More than one power supply
disconnect may be required.
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