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When calculating the total currents: Use Table 1/1A to determine the highest value of "RMS Current" or "Average Current" for
an individual horn (across the expected operating voltage range of the horn), then multiply these values by the total number of
horns; be sure to add the currents for any other appliances, including audible signaling appliances, powered by the same source
and include any required safety factors.
If the peak current exceeds the power supplies' peak capacity, the output voltage provided by the power supplies may drop
below the listed voltage range of the appliances connected to the supply and the voltage may not recover in some types of power
supplies. For example, an auxiliary power supply that lacks filtering at its output stage (either via lack of capacitance and/or
lack of battery backup across the output) may exhibit this characteristic.
WARNING: THE HS-24 APPLIANCE MUST BE FIELD SET TO THE DESIRED TONE AND dBA SOUND
OUTPUT LEVEL BEFORE IT IS INSTALLED. THIS IS DONE BY PROPERLY INSERTING JUMPER PLUGS IN
ACCORDANCE WITH THESE INSTRUCTIONS.
PERFORMANCE, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO
YOU AND/OR OTHERS.
SOUND OUTPUT (SPL) SETTINGS:
NOTE: The Code 3 Horn incorporates the temporal pattern (1/2 second on, 1/2 second off, 1/2 second on, 1/2 second off, 1/2
second on, 1-1/2 off and repeat) specified by ANSI/NFPA for standard emergency evacuation signaling. The Code 3 Horn
should be used only for fire evacuation signaling and not for any other purpose.
No jumper plug is needed for continuous horn setting. However, it is recommended that the jumper plug be retained in the unit
for future use (if needed) as shown in Figure 3.
Figure 2: Showing Location of Jumper Plugs
Factory setting is on Medium dB and Code 3.
Figure 3: Jumper Plug Settings for High, Medium, Low dB,
Code 3 Horn and Continuous Horn Setting.
J2
J2
H
H
M
M
L
L
HIGH
MEDIUM
HORN
HORN
SETTING
SETTING
(Use needle nose pliers to pull and properly insert the jumper plug.)
INCORRECT SETTINGS WILL RESULT IN IMPROPER
TOP
P83511 ( )
C1
R5
AH
J2
J1
C
H
O
D
M
E
L
3
TB1
J3
+ STR -
+ AUD -
J2
J1
C
H
O
M
D
L
E
3
LOW
CODE 3
HORN
HORN
SETTING
SETTING
J2
J1
C
H
O
D
M
E
L
3
J1
C
O
D
E
3
CONTINUOUS
* HORN
SETTING
P84432 G
Sheet 3 of 6
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