Pittway System Sensor SpectrAlert SP2 Series User manual

SpectrAlert SP2 Series
Wall Speaker/Strobes for
Fire Protective Signaling Systems
INSTALLATION AND MAINTENANCE INSTRUCTIONS
A Division of Pittway
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: [phone]
NOTICE: This manual shall be left with the owner/user of
this equipment.
General Description
The National Fire Protection Association (NFPA) has pub-
lished standards and recommended practices for the
speaker/strobes described in this manual. As a result, the
installer must be familiar with these requirements as well
as all local codes and special requirements of the authority
having jurisdiction.
The SpectrAlert SP2 series speakers can be operated with
distribution amplifiers having an output voltage of either
25 volts or 70.7 volts.
The speakers operate at any one of four input power levels.
The output sound level is selected at the time of installa-
tion, but can be changed, if necessary.
The speaker is also equipped with a capacitive input to al-
low for DC supervision.
The SpectrAlert SP2 series strobe can be installed in
systems using 24-volt panels having DC or full-wave
rectified (FWR) power supplies. The strobes can also be
installed in applications requiring synchronization (MDL
required) or applications that do not require
synchronization (no module required).
The SpectrAlert SP2 series speaker/strobes are designed to
meet the requirements of most agencies governing these
devices, including: NFPA, ADA, The National Fire Alarm
Code, UL, CSFM, MEA. Also, check with your local Au-
thority Having Jurisdiction for other codes or standards
that may apply.
Power Supply Considerations For Strobes
Panels typically supply DC filtered voltage or FWR (full-
Specifications: Speaker
Mechanical
Input Terminals: 12 to 18 AWG (3.31 to 0.82 mm2)
Speaker Size: 4 inches (101 mm)
Overall Dimensions: 8.25” x 4.9”
Electrical
Voltage Input: 25 volts or 70.7 volts (nominal)
Frequency Range: 400 - 4000 Hz
Power: 1/4, 1/2, 1 and 2 Watts
Operating
Temperature Range: 32°to 120°F (0°to 49°C)
Listings: UL
D690-01-00 1 I56-1368-001
For use with the following models: SP2R2415, SP2R2430, SP2R241575, SP2R2475, SP2R24110,
SP2W2415, SP2W2430, SP2W241575, SP2W2475, SP2W24110
Specifications: Strobe
Voltage Range: DC or Full-Wave Rectified
20 to 30 volts, (21 to 30 with MDL module)
Flash Rate: 1 flash per second
Light Output: Models with 1575 are listed at 15 candela
per UL1971 but will provide 75 candela
on axis (straight ahead).
Models with 15, 30, 75 or 110 are rated for
that candela.
wave rectified) voltage. The system design engineer must
calculate the number of units used in a zone based on the
type of panel supply. Be certain the sum of all the device
currents do not exceed the current capability of the panel.
Calculations are based on using the device current found
in Table 2 and must be the current specified for the type of
panel power supply used.
Wire Sizes
The designer must be sure that the last device on the circuit
has sufficient voltage to operate the device within its rated
voltage. When calculating the voltage available to the last
device, it is necessary to consider the voltage drop due to
the resistance of the wire. The thicker the wire, the less the
voltage drop. Generally, for purposes of determining the
wire size necessary for the system, it is best to consider all
of the devices as “lumped” on the end of the supply circuit
(simulates “worst case”).
Typical wire size resistance:
18 AWG solid: Approximately 8 ohms/1,000 ft.
16 AWG solid: Approximately 5 ohms/1,000 ft.
14 AWG solid: Approximately 3 ohms/1,000 ft.
12 AWG solid: Approximately 2 ohms/1,000 ft.
Example: Assume you have 10 devices on a zone and each
requires 50 mA average and 2000 Ft. of 14 AWG wiring (to-
tal length=outgoing +return). The voltage at the end of
the loop is 0.050 amps per device x 10 devices x 3 ohms/
1,000 ft. x 2000 ft =3 volts drop.
The same number of devices using 12 AWG wire will pro-
duce only 2 volts drop. The same devices using 18 AWG
wire will produce 8 volts drop. Consult your panel
manufacturer’s specifications, as well as SpectrAlert’s oper-
ating voltage range to determine acceptable voltage drop.
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Signal levels exceeding 130% rated signal voltage can
damage the speaker. Consequently, an incorrect tap
connection may cause speaker damage. This means that
if a 25V tap is selected when a 70.7V amplifier is being
used, speaker damage may result. Therefore, be sure to
select the proper taps for the amplifier voltage/input
power level combination being used.
2 W 1 W 1/2 W 1/4 W
84 81 78 75
UL
Reverberant
(dBA @ 10 ft.)
2 W 1 W 1/2 W 1/4 W
87 84 81 78
Anechoic
(dBA @ 10 ft.)
Installation
All wiring must be installed in compliance with the Na-
tional Electrical Code (NEC) and applicable local codes as
well as special requirements of the authority having juris-
diction, using the proper wire size. This also includes all
applicable NFPA Standards, ANSI/UL 1480, UL 1971 and
NEC 760.
Electrical
1. Connect the speaker/strobe as shown in Figure 1. Keep
in mind that even though the speaker and strobe are a
single mechanical unit, they are electrically independent
and require separate power sources.
NOTE: Do NOT loop electrical wiring under terminal
screws. Wires connecting the device to the control
panel must be broken at the device terminal con-
nection in order to maintain electrical supervision.
NOTE: Supply power for strobe must be continuous for
proper operation.
2. See Figure 2 as an example of how to select a 1/4 Watt
input when a 25 volt amplifier is being used. Notice that
the header, SW1, has two shunts. One shunt is used to
select either 25 or 70.7 volts input. The other shunt is
used to select input power of 1/4, 1/2, 1 or 2 Watts.
Table 1 lists the UL reverberant and anechoic output
sound levels for each power tap on the SP2 series
speaker/strobes.
Figure 1. Electrical connections:
Figure 2. Voltage and Power Selection:
25.0V
70.7V
2W
1W
1/2W
1/4W
25.0V
70.7V
2W
1W
1/2W
1/4W
CORRECT
SW1
SW1
INCORRECT
INPUT FROM
AMPLIFIER TO NEXT
SPEAKER OR EOL
TO NEXT
STROBE OR EOL
INPUT FROM
POWER SUPPLY
Table 1. Sound levels for each transformer
power tap:
CAUTION
DC FWR DC FWR DC FWR
50 61 43 60 38 60
78 84 67 82 58 72
145 170 123 159 102 141
169 220 140 191 115 174
15
15/75
56 65 49 64 44 62 150 199 150 207 150 198
30
75
110
AVERAGE CURRENT (mA)
24V Models
20V 24V 30V
DC FWR DC FWR DC FWR
135 204 135 208 135 185
183 201 183 219 183 216
350 440 340 460 330 480
460 560 450 570 420 620
PEAK CURRENT (mA)
24V Models
20V 24V 30V
DC FWR DC FWR DC FWR
97 129 116 152 147 198
97 135 116 164 147 211
97 129 116 152 147 198
190 240 230 280 290 380
190 230 220 290 290 370
IN RUSH CURRENT (mA)
24V Models
20V 24V 30V
Candela
Table 2. Current draw of strobes:
D690-01-00 2 I56-1368-001
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D690-01-00 3 I56-1368-001
Mounting
Reversible strobe module
Should the back box be located near an obstruction such as
a doorway, the strobe module is field-reversible (Fig. 3).
To reverse the strobe module: loosen the strobe screw,
hinge the strobe module and lift it away from the mounting
plate. Turn the module so that it is upside down from its
original position and re-insert the module into the mount-
ing plate (be sure to insert Locking Rib into slot), tighten
strobe screw. Turn the entire assembly so that the word
“FIRE” is right side up. The unit can now be mounted.
Flush mount back box
The speaker/strobe can be flush mounted on a 4” x 4” x 2-
1/8” back box (Fig. 4) as follows:
A. Select the appropriate pair of diagonally opposite
mounting holes in the speaker grille that will be used to
attach the speaker/strobe to the back box. Do not insert
any mounting screws at this point.
B. Plug the two holes that will not be used for attachment,
using two 8-32 x 1-3/4” pan head screws and hex-nuts
provided.
C. Use the two remaining 8-32 x 1-3/4” pan head screws to
attach the speaker to the back box.
NOTE: Two drywall screws (provided) may be used to fas-
ten the mounting plate to the wall. To use the dry-
wall screws, it will be necessary to first loosen the
strobe screw and hinge the strobe module away
from the mounting plate.
Surface mount with SP2-BBS back box skirt
An optional back box skirt is available to provide a finished
appearance. Mount the skirt to the back box using the
mounting screws provided with the skirt as follows:
A. Select the appropriate pair of diagonally opposite
mounting holes in the speaker grille that will be used to
attach the speaker/strobe to the back box. Do not insert
any mounting screws at this point.
B. Plug the two holes that will not be used for attachment,
using two 8-32 x 1-3/4” pan head screws and hex nuts
provided.
C. Use the two remaining 8-32 x 1-3/4” pan head screws to
attach the speaker to the back box.
NOTE: Two drywall screws (provided) may be used to fas-
ten the SP2-BBS to the wall.
NOTE: The back box or back box with extension ring com-
bination must be 4” x 4” and more than 2-1/8”
deep if using a SP2-BBS.
NOTE: To surface mount the SP2 series speaker/strobe,
the minimum depth required in the back box/ex-
tension ring combination, is 2-5/8”.
Figure 4: Flush mount back box
Figure 5: Surface mount with SP2-BBS back box skirt
Figure 3: Reversible strobe module
Figure 6: Mounting to irregular surfaces
Strobe Screw
Locking Rib
Drywall Screws
(optional)
Drywall Screws
(optional)
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D690-01-00 4 I56-1368-001
©System Sensor 1999
Three-Year Limited Warranty
System Sensor warrants its enclosed speaker to be free from defects in ma-
terials and workmanship under normal use and service for a period of
three years from date of manufacture. System Sensor makes no other ex-
press warranty for this speaker. No agent, representative, dealer, or em-
ployee of the Company has the authority to increase or alter the
obligations or limitations of this Warranty. The Company’s obligation of
this Warranty shall be limited to the repair or replacement of any part of
the speaker which is found to be defective in materials or workmanship
under normal use and service during the three year period commencing
with the date of manufacture. After phoning System Sensor’s toll free
number 800-SENSOR2 (736-7672) for a Return Authorization number,
send defective units postage prepaid to: System Sensor, Repair Depart-
ment, RA #__________, 3825 Ohio Avenue, St. Charles, IL 60174. Please
include a note describing the malfunction and suspected cause of failure.
The Company shall not be obligated to repair or replace units which are
found to be defective because of damage, unreasonable use, modifica-
tions, or alterations occurring after the date of manufacture. In no case
shall the Company be liable for any consequential or incidental damages
for breach of this or any other Warranty, expressed or implied whatsoever,
even if the loss or damage is caused by the Company’s negligence or fault.
Some states do not allow the exclusion or limitation of incidental or conse-
quential damages, so the above limitation or exclusion may not apply to
you. This Warranty gives you specific legal rights, and you may also have
other rights which vary from state to state.
If either of the voltage select or power select shunts is not plugged into
one of the appropriate option positions, the speaker will not sound and
there will be no trouble indication at the panel. Always make sure that the
individual speakers are tested after installation per NFPA regulations.
The speaker may not be heard. The loudness of the speaker meets (or
exceeds) the current Underwriters Laboratories’ standards. However, the
speaker may not attract the attention of a sound sleeper or one who has
recently used drugs or has been drinking alcoholic beverages. The speaker
may not be heard if it is placed on a different floor from the person in haz-
ard or if placed too far away to be heard over the ambient noise. Traffic, air
conditioners, machinery, or music appliances may prevent even alert per-
sons from hearing the alarm. The speaker may not be heard by persons
who are hearing impaired.
The Limitations of Speaker/Strobes
WARNING
The signal strobe may not be seen. The electronic visual warning signal
uses an extremely reliable xenon flash tube. It flashes at least once every
second. The strobe must not be installed in direct sunlight or areas of high
light intensity (over 60 foot candles) where the visual flash might be disre-
garded or not seen. The strobe may not be seen by the visually impaired.
The signal strobe may cause seizures. Individuals who have positive
photic response to visual stimuli with seizures, such as persons with epi-
lepsy, should avoid prolonged exposure to environments in which strobe
signals, including this strobe, are activated.
The signal strobe cannot operate from coded power supplies. Coded
power supplies produce interrupted power. The strobe must have an unin-
terrupted source of power in order to operate correctly. System Sensor rec-
ommends that the horn and signal strobe always be used in combination
so that the risks from any of the above limitations are minimized.
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