Harrington Signal FHEX-24SMR - Manual (Page 2)

- 2 -
256884 FHEX Instruction Sheet
WARNING
Property damage, serious injury, or death could occur if any
objects are in front of the horn’s grille, severely reducing
optimum sound distribution. For maximum effectiveness,
ensure that the front of the grille is clear of obstructions.
a. Select mounting location.
b. Using the horn as a template, scribe drill position marks
on the mounting surface. See figure 1 for mounting hole locations and
dimensions.
CAUTION
Before drilling holes in any surface, be sure both sides of
surface are clear of anything that could be damaged.
c. Drill holes at the previously scribed drill position marks
to accommodate 3/8" diameter bolts.
d. Secure the horn to the mounting surface with 3/8"
diameter hex head bolts, lockwashers, and hex nuts.
3. Electrical Connection.
DANGER
To avoid electrical shock, do not connect wires when circuits
are energized.
National Electrical Code as well as local codes must be
adhered to in the installation of this device. All electrical wiring must be
routed through conduit and fittings approved for explosion-proof instal-
lations.
WARNING
Property damage, serious injury, or death could occur if
independent conductors are terminated together; both wires
of the same polarity must be used as two separate connec-
tions. NFPA 72 requires that the wires be terminated inde-
pendently to provide electrical supervision of the connection.
a. Remove splicing condulet cover. See figure 2. Connect
the device’s red (+) leads to the power source positive (+) lead. Connect
the device’s black (-) leads to the power source negative (-) lead.
WARNING
Property damage, serious injury, or death could occur if the
condulet cover is not closed properly. To reduce the possibility
of explosion, splicing condulet cover must be kept tightly
closed while circuits are energized.
b. Replace splicing condulet cover and tighten.
D. TESTING/OPERATING.
WARNING
Under certain conditions these devices are capable of pro-
ducing sounds loud enough to cause hearing damage. Ad-
equate hearing protection should be worn if standing within
close proximity to device while testing. Recommendations in
the OSHA Sound Level Standard (29 CFR 1910) should not
be exceeded.
1. After installation is complete, be sure to test the system to
verify that each horn operates satisfactorily.
2. After completion of initial system test, establish a program for
periodic testing of this device. Refer to NFPA 72G, local Fire Codes and
the authority having jurisdiction for this information.
Figure 1. Model FHEX Mounting Dimensions.
3. Provide a copy of these instructions for the Safety Engineer,
system operator(s) and maintenance personnel.
SAFETY MESSAGE TO OPERATORS
Even if your warning system is operating properly, it may not
be completely effective. People may not hear or heed your
warning signal. You must recognize this fact and ensure that
your warning signal achieves its intended effect through
proper test/training sequences within your specific
application(s).
E. MAINTENANCE.
SAFETY MESSAGE
T O
MAINTENANCE PERSONNEL
Failure to follow all safety precautions and instructions may result
in property damage, serious injury, or death to you or others. People’s
lives depend on your safe maintenance of our products. Read and
understand all warnings in paragraph C. INSTALLATION. In addition,
listed below are some other safety messages and precautions you
should follow:
• Read and understand all instructions before performing
maintenance on this unit.
• Do not perform maintenance on this unit when circuits are
energized.
• Periodic checks should be made to ensure that effective-
ness of this device has not been reduced because
speaker has become clogged with a foreign substance
or because objects have been placed in front of the
speaker.
• Any maintenance to this unit MUST be performed by a
trained electrician in accordance with NEC guidelines
and local codes.
• Never alter this unit in any manner. Safetyin hazardous
locations may be jeopardized if additional openings or
alterations are made to this device.
• The nameplates, which contain cautionary or other
information of importance to maintenance personnel,
should not be obscured if exterior of device is painted.
1. Periodically check this device to verify that there are no
foreign substances in, or in front of, the horn’s grille which will reduce
its effectiveness.
2. Testing should be periodically performed. Refer to NFPA
72G, local Fire Codes and the authority having jurisdiction for informa-
tion.
290A2627-22
12"
MOUNTING
HOLE
CENTERS
13/32" DIA.
MOUNTING
HOLES (2)
3/4" I.P.S.
OUTLET
7/8"
1/2"
6" 45 °
REMOVABLE
COVER FOR
WIRE
CONNECTIONS
6-7/8"
6-1/2"