RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D 7800 SERIES RELAY MODULES
66-1090—32
WARNING
Fire or Explosion Hazard.
Can cause property damage, severe injury, or
death.
Follow applicable safet
re
uirements when installin
a control on a burner to prevent death or severe in
ur
.
WARNING
Electrical Shock Hazard.
Can cause serious injury, death or equipment
damage .
Disconnect power suppl
before be
innin
installation.
IMPORTANT
1. Wiring connections for the relay modules are unique;
refer to Fig. 2 and 3 or the appropriate Specifications
for proper 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 RM7895A,B,C,D/
EC7895A,C; RM7896A,B,C,D must not exceed
those listed on the RM7895A,B,C,D/EC7895A,C;
RM7896A,B,C,D 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-rec-
ognized 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 safe-
guard control and the main fuel valve(s).
8. Two flame detectors can be connected in parallel
with the exception of Infrared Flame Detectors
(C7015).
9. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used
in accordance with the instructions, can cause inter-
ference 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 com-
mercial 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 Canadian
Department of Communications.
Location
Humidity
Install the rela
module where the relative humidit
never
reaches the saturation point. The rela
module is desi
ned to
operate in a maximum 85% relative humidit
continuous,
noncondensin
, moisture environment. Condensin
moisture
can cause a safet
shutdown.
Vibration
Do not install the rela
module where it can be sub
ected to
vibration in excess of 0.5G continuous maximum vibration.
Weather
The rela
module is not desi
ned to be weather ti
ht. When
installed outdoors, protect the rela
module in an approved
weather-ti
ht enclosure.
Mounting Wiring Subbase
1.
Mount the subbase in an
position except horizontall
with the bifurcated contacts pointin
down. The
standard vertical position is recommended. An
other
position decreases the maximum ambient temperature
ratin
.
2.
Select a location on a wall, burner or electrical panel.
The Q7800 can be mounted directl
in the control
cabinet. Be sure to allow ade
uate clearance for
service, installation, access or removal of the
RM7895A,B,C,D/EC7895A,C; RM7896A,B,C,D,
expanded annunciator, ke
board displa
module, flame
amplifier, flame amplifier si
nal volta
e probes, run/test
switch, electrical si
nal volta
e probes and electrical
field connections.
3.
For surface mountin
, use the back of the subbase as a
template to mark the four screw locations. Then drill the
pilot holes.
4.
Securel
mount the subbase usin
four no. 6 screws
not provided
.