Harrington Signal SPHH-DVSMR - Manual (Page 3)

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256885 SPHH Instruction Sheet
WARNING
An uninsulated section of a single conductor must
NOT be looped around a terminal and used as two
separate connections. NFPA 72 requires that the
wire is severed to provide electrical supervision of
the connection.
2. See Figure 3. Connect the yellow lead, found
in the speaker, to the 25V or 70V terminal as appropriate.
WARNING
Property damage, serious injury, or death could
occur if the housing is not closed properly. To
reduce possibility of explosion, the Model SPHH’s
housing cover must be kept tight while circuits are
energized.
3. Be sure the neoprene rubber cover gasket is
properly seated in the housing groove and reinstall the
housing cover.
IV. TESTING/OPERATING.
WARNING
Under certain conditions these devices are capable
of producing sounds loud enough to cause hearing
damage. Adequate 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.
A. After installation is complete, be sure to test the
system to verify that each speaker operates satisfactorily.
If it is found that the unit is too loud for its location, a lower
wattage tap may be selected. Carefully remove the housing
cover and move the positive (+) lead to a lower wattage tap
(see Figure 3). Reinstall the housing cover and retest.
WARNING
Property damage, serious injury, or death could
occur if the housing is not closed properly. To
reduce possibility of explosion, housing cover must
be kept tight while circuits are energized.
B. After completion of initial system test, establish a
program for periodic testing of this device. Refer to NFPA
72, local Fire Codes and the authority having jurisdiction for
this information.
C. 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 recog-
nize this fact and ensure that your warning signal
achieves its intended effect through proper test/
training sequences within your specific application(s).
V. MAINTENANCE.
SAFETY MESSAGE
TO
MAINTENANCE PERSONNEL
Failure to follow all safety precautions and instructions
may result in property damage, serious injury, or death to
you or others.
• Read and understand all instructions before
performing maintenance on this unit.
• To reduce the risk of electrical shock or ignition
of hazardous atmospheres, do not perform
maintenance or service on this unit when
circuits are energized.
• Periodic checks should be made to ensure that
effectiveness 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 per-
formed by a trained electrician in accordance
with NEC guidelines and local codes.
• Never alter this unit in any manner. Safety in
hazardous locations may be jeopardized if
additional openings or alterations are made to
Model SPHH.
• The nameplates, which contain cautionary or
other information of importance to mainte-
nance personnel, should not be obscured if
exterior of device is painted.
A. Periodically check this device to verify that there
are no foreign substances in, or in front of, the speaker
which will reduce its effectiveness.
B. Testing should be periodically performed. Refer to
NFPA 72, local Fire Codes and the authority having jurisdic-
tion for information.
C. In the event a volume adjustment or other repair is
required, be sure to refer to the Safety Message For
Maintenance Personnel before proceeding.
WARNING
Unauthorized repair/servicing of the unit may result
in degradation of performance and/or property dam-
age, serious injury, or death to you or others. If a
malfunctioning unit is encountered, do not attempt
any field repair/retrofit of parts.