Pittway SYSTEM SENSOR SPECTRAlert SC2415W User manual

D900-22-00 1 I56-1453-006R
SpectrAlert Ceiling Mount Series Strobes,
and Horn/Strobes
For use with the following models:
Strobes: 24 volt: SC2415W, SC241575W, SC2430W, SC2475W, SC2495W, SC24115W, SC24177W
Horn/Strobes: 24 volt: PC2415W, PC241575W, PC2430W, PC2475W, PC2495W, PC24115W, PC24177W
Remove suffix “W”for red models.
Add suffix “P”for models with plain housing.
The Products to which this manual applies may be covered by one or more of the following U.S. Patent numbers: 5,914,665; 5,850,178; 5,598,139; 6,049,446; 6,057,778; D424465
INSTALLATION AND MAINTENANCE INSTRUCTIONS
A Division of Pittway
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: [phone]
www.systemsensor.com
General Description
The SpectrAlert ceiling mount series notification appliances are designed to
meet the requirements of most agencies governing these devices, includ-
ing: NFPA, The National Fire Alarm Code, UL, FM, CSFM, MEA. Also,
check with your local Authority Having Jurisdiction for other codes or stan-
dards that may apply.
The SpectrAlert ceiling mount series can be installed in systems using 24-
volt panels having DC or full-wave rectified (FWR) power supplies. The
series can also be installed in systems requiring synchronization (module
MDL required) or systems that do not require synchronization (no module
required).
NOTICE: This manual shall be left with the owner/user of this equipment.
Fire Alarm System Considerations
Temporal and Non-Temporal Coded Signals:
The American National Standards Institute and the National Fire Alarm
Code require that all horns used for building evacuation installed after July
1, 1996, must produce Temporal Coded Signals.
Signals other than those used for evacuation purposes do not have to pro-
duce the Temporal Coded Signal. Temporal coding is accomplished by inter-
rupting a steady sound in the following manner:
Power Supply Considerations
Panels typically supply DC filtered voltage or FWR (full-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
Specifications
Mechanical
Input Terminals: 12 to 18 AWG (3.31 to 0.82 mm2)
Overall Dimensions: 6.8″diameter (173 mm)
Operating Temperature: 32°F to 120°F (0°C to 49°C)
Electrical
Voltage Range: DC or Full-Wave Rectified
15 candela through 115 candela models
Strobes & Horn/Strobes: 16 to 33 volts DC or Full Wave Rectified
(with MDL module): 17 to 33 volts DC or Full Wave Rectified
177 candela models only
Strobes & Horn/Strobes: 16 to 33 volts DC; 20 to 33 volts Full Wave Rectified
(with MDL module): 17 to 33 volts DC; 21 to 33 volts Full Wave Rectified
NOTE: Horn/Strobes units will operate on walk tests with on-time durations of 1 sec. or greater.
Flash Rate: 1 Flash Per Second
Light Output: Models with 15 only in the model number are listed at 15 candela.
Models with 1575 are listed at 15 candela per UL 1971 but will provide 75 candela on axis (straight down).
Models with 30, 75, 95, 115, 177 are for that candela.
Sound Output: Sound output levels are established at Underwriters Laboratories in their reverberant room. Always use the sound out-
put specified as UL Reverberant Room when comparing products.
Listings: UL S5512 Strobe, UL S4011 (Combo)
Note: Strobes have a 16–33 Volt Operating Range Limit. Do not exceed the maximum number of 70 strobe lights when connecting the MDL Sync mod-
ule zone with a maximum line impedance of 4 Ohms per loop.
all the device currents do not exceed the current capability of the panel.
Calculations are based on using the device current found in the subsequent
charts and must be the current specified for the type of panel power sup-
ply 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 neces-
sary 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 (total 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 produce 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
operating voltage range to determine acceptable voltage drop.
Note: If class “A”wiring is installed, the wire length may be up to 4 times
the single wire length in this calculation.
1/2Sec.
On
1/2Sec.
Off
1/2Sec.
On
1/2Sec.
Off
1/2Sec.
On 11/2Sec. Off Repeats

Figure 1B: Current Draw Measurements (Average RMS Method)
NOTE: The SC24177 and PC24177 strobes were only tested at the 20-33 Volt-FWR limits and 16-33 Volt DC limits, all other SC and PC strobes were
only tested at the 16-33 Volt-FWR/DC limits. This does not include the 80% low end or 110% high end voltage limits.
Figure 1A: Current Draw Measurements (Average Mean Method)
NOTE: The SC24177 and PC24177 strobes were only tested at the 20-33 Volt-FWR limits and 16-33 Volt DC limits, all other SC and PC strobes were
only tested at the 16-33 Volt-FWR/DC limits. This does not include the 80% low end or 110% high end voltage limits.
Ceiling Mount Horn/Strobe 1575 cd:
D900-22-00 2 I56-1453-006R
Ceiling Mount Strobe Only:
DC FWR DC FWR DC FWR
90 88 79 96 76 105
90 88 79 96 76 105
83 77 70 81 65 88
83 77 70 81 65 88
115 139 83 101 82 110
115 139 83 101 82 110
84 78 72 84 69 92
84 78 72 84 69 92
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average Mean Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
DC FWR DC FWR DC FWR
194 168 150 174 130 169
194 168 150 174 130 169
187 157 141 159 119 152
187 157 141 159 119 152
197 188 154 179 136 174
197 188 154 179 136 174
188 158 143 162 123 156
188 158 143 162 123 156
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average Mean Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
DC FWR DC FWR DC FWR
78 80 71 89 70 94
78 80 71 89 70 94
71 69 62 74 59 77
71 69 62 74 59 77
91 94 75 94 76 99
91 94 75 94 76 99
72 70 64 77 63 81
72 70 64 77 63 81
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average Mean Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
Ceiling Mount Horn/Strobe 15 cd:
Ceiling Mount Horn/Strobe 1575 cd:
Ceiling Mount Horn/Strobe 95 cd:
Ceiling Mount Horn/Strobe 30 cd: Ceiling Mount Horn/Strobe 75 cd:
DC FWR DC FWR DC FWR
110 105 91 113 85 116
110 105 91 113 85 116
103 94 82 98 74 99
103 94 82 98 74 99
125 108 95 118 91 121
125 108 95 118 91 121
104 95 84 101 78 103
104 95 84 101 78 103
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average Mean Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
DC FWR DC FWR DC FWR
238 222 176 207 151 206
238 222 176 207 151 206
231 211 167 192 140 189
231 211 167 192 140 189
278 225 180 212 157 211
278 225 180 212 157 211
232 212 169 195 144 193
232 212 169 195 144 193
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average Mean Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
DC FWR DC FWR DC FWR
89 95 84 108 83 117
89 95 84 108 83 117
82 84 75 93 72 100
82 84 75 93 72 100
92 98 88 113 89 122
92 98 88 113 89 122
83 85 77 96 76 104
83 85 77 96 76 104
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average RMS Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
DC FWR DC FWR DC FWR
101 105 94 115 91 129
101 105 94 115 91 129
94 94 85 100 80 112
94 94 85 100 80 112
104 108 98 120 97 134
104 108 98 120 97 134
95 95 87 103 84 116
95 95 87 103 84 116
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average RMS Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
DC FWR DC FWR DC FWR
127 127 113 132 107 142
127 127 113 132 107 142
120 116 104 117 96 125
120 116 104 117 96 125
130 130 117 137 113 147
130 130 117 137 113 147
121 117 106 120 100 129
121 117 106 120 100 129
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average RMS Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
DC FWR DC FWR DC FWR
224 202 190 202 172 197
224 202 190 202 172 197
217 191 181 187 161 180
217 191 181 187 161 180
227 205 194 207 178 202
227 205 194 207 178 202
218 192 183 190 165 184
218 192 183 190 165 184
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average RMS Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
DC FWR DC FWR DC FWR
284 266 236 242 209 247
284 266 236 242 209 247
277 255 227 227 198 230
277 255 227 227 198 230
287 269 240 247 215 252
287 269 240 247 215 252
278 256 229 230 202 234
278 256 229 230 202 234
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average RMS Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
Ceiling Mount Strobe Only: Ceiling Mount Horn/Strobe 15 cd:
Ceiling Mount Horn/Strobe 30 cd:
Ceiling Mount Horn/Strobe 95 cd:
Ceiling Mount Horn/Strobe 75 cd:
DC FWR FWR DC FWR DC FWR
63 79 48 55 41 51
81 94 56 62 47 62
119 109 68 79 56 73
179 167 127 140 101 126
278 231 153 173 122 163
290 232 191 230 156 212
453 338 291 300 208 241
15
15/75
30
75
95
115
177
Average Mean Current (mA)
24V Models
16V 24V 33V DC FWR FWR DC FWR DC FWR
164 232 170 242 170 224
174 238 172 258 168 228
238 288 226 318 218 298
418 436 398 462 384 486
540 562 534 560 518 552
644 668 612 712 576 728
952 1092 912 1104 872 1184
Peak Current (mA)
DC FWR FWR DC FWR DC FWR
91 118 133 177 188 252
91 115 134 179 182 237
94 116 137 179 184 244
99 118 133 177 186 238
92 115 132 176 187 244
81 108 118 175 174 249
79 148 126 170 171 234
In Rush Current (mA)
Candela 20V 24V Models
16V 24V 33V
20V 24V Models
16V 24V 33V
20V
DC FWR FWR DC FWR DC FWR
74 71 61 74 54 74
86 81 71 81 62 86
112 103 90 98 78 99
209 178 167 168 143 154
269 242 213 208 180 204
336 300 257 268 218 248
521 412 394 370 315 327
15
15/75
30
75
95
115
177
Average RMS Current (mA)
24V Models
16V 24V 33V
Candela 20V
DC FWR DC FWR DC FWR
305 256 214 264 185 255
305 256 214 264 185 255
298 245 205 249 174 238
298 245 205 249 174 238
308 259 218 269 191 260
308 259 218 269 191 260
299 246 207 252 178 242
299 246 207 252 178 242
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average Mean Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
Ceiling Mount Horn/Strobe 115 cd:
DC FWR DC FWR DC FWR
351 324 280 302 247 291
351 324 280 302 247 291
344 313 271 287 236 274
344 313 271 287 236 274
354 327 284 307 253 296
354 327 284 307 253 296
345 314 273 290 240 278
345 314 273 290 240 278
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average RMS Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
Ceiling Mount Horn/Strobe 115 cd:
DC FWR DC FWR DC FWR
468 367 314 334 237 284
468 367 314 334 237 284
461 354 305 319 226 267
461 354 305 319 226 267
471 371 318 339 243 289
471 371 318 339 243 289
462 356 307 322 230 271
462 356 307 322 230 271
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average Mean Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
20V
Ceiling Mount Horn/Strobe 177 cd:
DC FWR DC FWR DC FWR
536 441 417 404 344 370
536 441 417 404 344 370
529 428 408 389 333 353
529 428 408 389 333 353
539 445 421 409 350 375
539 445 421 409 350 375
530 430 410 392 337 357
530 430 410 392 337 357
High/Low
Volume Temp /Non
Electro-
mech. Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz
Interrupt.
Average RMS Current (mA)
24V Models
16V 24V 33V
Tone High
Low
High
Low
20V
Ceiling Mount Horn/Strobe 177 cd:

Horn Selections
The horns on SpectAlert horn/strobe combo units are factory set for high
volume, temporal code, and electromechanical tone.
Tones:
Electromechanical or 3kHz tones may be field-selected using the
dipswitch selector (See Figs. 2B and 3B for dipswitch location).
NOTE: When powered from FWR supply, tones will be modulated(turned
on and off) by 120Hz causing the tones to sound diferent from DC power.
Temp/Non-Temp:
Temporal coding or Non-Temporal coding can also be field-
selected using the dipswitch.
High/Low Volume:
High or low volume may also be field-selected using the dip-
switch.
D900-22-00 3 I56-1453-006R
HORN
(+)
(–)
(+)
(–)
E
O
L
(+)
(–)
(+)
(–)
HORN/STROBE STROBE ONLY
Figure 2A. Any combination of models powered by a 2-wire circuit:
NOTE: Supply power must be continous for proper operation.
Figure 3A. Any combination of models powered by a 4-wire cir-
cuit to provide independent horn and strobe operation (Remove
factory installed jumpers, see Figure 3B):
System Operation: Non-Synchronized Devices
Figure 2B: Horns and strobes powered in tandem:
Figure 3B: Horns and strobes powered independently (Horn oper-
ated on coded power supply):
NOTE: Strobes must be powered continuously for horn operation.
NOTE: Strobes must be powered continuously for horn operation.
NOTE: Supply power must be continuous for proper operation.
(+)
(+)
(—)
(+)
(+)
(+)
(—)
(+)
S
T
R
O
B
E
C
O
M
B
O
H
O
R
N
H
O
R
N
S
T
R
O
B
E
(+)
H
O
R
N
E
O
L
(+)
S
T
R
O
B
E
E
O
L
C
O
M
B
O
+
_
+
_
FROM FACP, MODULE
OR PREVIOUS DEVICE
FACTORY INSTALLED
SHORTING BAR
DIP
SWITCH
STROBE +
HORN +
STROBE -
HORN -
TO NEXT DEVICE
OR EOL
+
_
HORNS
FACTORY INSTALLED
JUMPER REMOVED
STROBE +
HORN +
STROBE -
HORN -
TO NEXT
STROBE
OR EOL
+
_
+
_
+
_
TO NEXT
HORN
OR EOL
STROBES
Break wire as shown for
supervision of connection.
DO NOT allow stripped wire
leads to extend beyond switch
housing. DO NOT loop wires.
Figure 1C: Sound Pressure Measurements
Sound Output Guide Sound pressure
dBA @10 ft./volts DC
16 24 33
Temporal Low Volume Electromechanical 75 75 79
3000 Hz Interrupted 75 75 79
High Volume Electromechanical 79 82 82
3000 Hz Interrupted 79 82 82
Non- Low Volume Electromechanical 75 82 82
Temporal 3000 Hz Interrupted 79 82 85
High Volume Electromechanical 82 85 85
3000 Hz Interrupted 82 85 85
Figure 1D: Positioning for Maximum Brightness
NOTE: For maximum brightness,
unit must be mounted with
flash angles as shown.

D900-22-00 4 I56-1453-006R
©2000 System Sensor
Strobe or Horn/Strobe with universal mounting plate:
1. Mount adapter plate to back box with screws B.
2. Complete field wiring.
3. Secure unit to plate with screws A.
Strobe or Horn/Strobe surface mount:
1. Mount adapter plate and
back box skirt to back
box with screws B.
2. Complete field wiring.
3. Secure unit to skirt
with screws A.
Mounting Diagrams:
The horn and/or strobe will not work without power. The horn/strobe
gets its power from the fire/security panel monitoring the alarm system.
If power is cut off for any reason, the horn/strobe will not provide the
desired audio or visual warning.
The horn may not be heard. The loudness of the horn meets (or exceeds)
current Underwriters Laboratories’ standards. However, the horn may not
alert a sound sleeper or one who has recently used drugs or has been
drinking alcoholic beverages. The horn may not be heard if it is placed on
a different floor from the person in hazard or if placed too far away to be
heard over the ambient noise such as traffic, air conditioners, machinery
or music appliances that may prevent alert persons from hearing the
alarm. The horn may not be heard by persons who are hearing impaired.
NOTE: Strobes must be powered continuously for horn operation.
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 dis-
regarded 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
epilepsy, 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.
The Limitations of Ceiling Mount Horn/Strobes
WARNING
Three-Year Limited Warranty
System Sensor warrants its enclosed horn. strobe, or horn/strobe to be
free from defects in materials and workmanship under normal use and
service for a period of three years from date of manufacture. System
Sensor makes no other express warranty for this horn, strobe, or
horn/strobe. No agent, representative, dealer, or employee of the
Company has the authority to increase or alter the obligations or limita-
tions of this Warranty. The Company’s obligation of this Warranty shall be
limited to the repair or replacement of any part of the horn, strobe, or
horn/strobe 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
Department, 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,
modifications, or alterations occurring after the date of manufacture. In no
case shall the Company be liable for any consequential or incidental dam-
ages for breach of this or any other Warranty, expressed or implied what-
soever, 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 consequential 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.
A
B
Screw types used for mounting:
A = #8 plastite
B = 8-32 x 3/4 pan head
A
B
4x4x11⁄2
BBSCW (white)
BBSC (red)
Please refer to insert for the Limitations of Fire Alarm Systems