INSTALLATION AND MAINTENANCE INSTRUCTIONS
SpectrAlert Ceiling Mount Series Strobes,
and Horn/Strobes
A Division of Pittway
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
For use with the following models:
www.systemsensor.com
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
Specifications
Mechanical
Input Terminals:
Overall Dimensions:
Operating Temperature:
Electrical
Voltage Range:
15 candela through 115 candela
Strobes & Horn/Strobes:
(with MDL module):
177 candela models only
Strobes & Horn/Strobes:
(with MDL module):
12 to 18 AWG (3.31 to 0.82 mm2)
6.8″ diameter (173 mm)
32° F to 120° F (0° C to 49° C)
DC or Full-Wave Rectified
models
16 to 33 volts DC or Full Wave Rectified
17 to 33 volts DC or Full Wave Rectified
16 to 33 volts DC; 20 to 33 volts Full Wave Rectified
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 output 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 module zone with a maximum line impedance of 4 Ohms per loop.
General Description
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 supply used.
The SpectrAlert ceiling mount series notification appliances are designed to
meet the requirements of most agencies governing these devices, including: NFPA, The National Fire Alarm Code, UL, FM, CSFM, MEA. Also,
check with your local Authority Having Jurisdiction for other codes or standards that may apply.
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”).
The SpectrAlert ceiling mount series can be installed in systems using 24volt 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.
Typical wire size resistance:
18 AWG solid:
Approximately
16 AWG solid:
Approximately
14 AWG solid:
Approximately
12 AWG solid:
Approximately
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.
/2 Sec.
On
1
/2 Sec.
Off
1
/2 Sec.
On
1
/2 Sec.
Off
1
/2 Sec.
On
11/2 Sec.
Off
ft.
ft.
ft.
ft.
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.
Repeats
Power Supply Considerations
Note: If class “A” wiring is installed, the wire length may be up to 4 times
the single wire length in this calculation.
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
D900-22-00
ohms/1,000
ohms/1,000
ohms/1,000
ohms/1,000
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.
Signals other than those used for evacuation purposes do not have to produce the Temporal Coded Signal. Temporal coding is accomplished by interrupting a steady sound in the following manner:
1
8
5
3
2
1
I56-1453-006R
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 15 cd:
Ceiling Mount Strobe Only:
Average Mean Current (mA)
24V Models
16V 20V
24V
33V
Candela
15
15/75
30
75
95
115
177
Peak Current (mA)
24V Models
16V 20V
24V
33V
DC
FWR FWR DC
FWR
DC
FWR
DC
FWR FWR DC
FWR
DC
FWR
DC
FWR FWR
63
81
119
179
278
290
453
79
94
109
167
231
232
55
62
79
140
173
230
300
41
47
56
101
122
156
208
51
62
73
126
163
212
241
164
174
238
418
540
644
952
232
238
288
436
562
668
242
258
318
462
560
712
1104
170
168
218
384
518
576
872
224
228
298
486
552
728
1184
91
91
94
99
92
81
79
118
115
116
118
115
108
48
56
68
127
153
191
338 291
170
172
226
398
534
612
1092 912
Ceiling Mount Horn/Strobe 1575 cd:
Tone
Electromech.
High/Low
Volume
High
Low
3000 Hz High
Interrupt.
Low
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
High/Low
Volume
High
Low
3000 Hz High
Interrupt.
Low
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
DC
FWR
DC FWR
DC
FWR
90
90
83
83
115
115
84
84
88
88
77
77
139
139
78
78
79 96 76
79 96 76
70 81 65
70 81 65
83 101 82
83 101 82
72 84 69
72 84 69
105
105
88
88
110
110
92
92
Tone
Electromech.
238
238
231
231
278
278
232
232
FWR
222
222
211
211
225
225
212
212
FWR
DC
FWR
133
134
137
133
132
118
148 126
177
179
179
177
176
175
170
188
182
184
186
187
174
171
252
237
244
238
244
249
234
3000 Hz High
Interrupt.
Low
207
207
192
192
212
212
195
195
DC
151
151
140
140
157
157
144
144
FWR
206
206
189
189
211
211
193
193
Tone
Electromech.
High/Low
Volume
High
Low
3000 Hz High
Interrupt.
Low
Tone
Electromech.
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
3000 Hz High
Interrupt.
Low
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
Average Mean Current (mA)
24V Models
16V
24V
33V
DC
FWR
78
78
71
71
91
91
72
72
80
80
69
69
94
94
70
70
DC FWR
DC
FWR
71
71
62
62
75
75
64
64
70
70
59
59
76
76
63
63
94
94
77
77
99
99
81
81
89
89
74
74
94
94
77
77
Ceiling Mount Horn/Strobe 75 cd:
DC
FWR
DC FWR
DC
FWR
110
110
103
103
125
125
104
104
105
105
94
94
108
108
95
95
91
91
82
82
95
95
84
84
85
85
74
74
91
91
78
78
116
116
99
99
121
121
103
103
113
113
98
98
118
118
101
101
Tone
Electromech.
3000 Hz High
Interrupt.
Low
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
Average Mean Current (mA)
24V Models
16V
24V
33V
DC
FWR
DC FWR
DC
FWR
194
194
187
187
197
197
188
188
168
168
157
157
188
188
158
158
150
150
141
141
154
154
143
143
130
130
119
119
136
136
123
123
169
169
152
152
174
174
156
156
174
174
159
159
179
179
162
162
Ceiling Mount Horn/Strobe 177 cd:
DC
FWR
DC FWR
DC
FWR
305
305
298
298
308
308
299
299
256
256
245
245
259
259
246
246
214
214
205
205
218
218
207
207
185
185
174
174
191
191
178
178
255
255
238
238
260
260
242
242
264
264
249
249
269
269
252
252
High/Low
Volume
High
Low
Average Mean Current (mA)
24V Models
16V
24V
33V
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
High/Low
Volume
High
Low
Average Mean Current (mA)
24V Models
16V
24V
33V
Ceiling Mount Horn/Strobe 115 cd:
DC FWR
176
176
167
167
180
180
169
169
High/Low
Volume
High
Low
Average Mean Current (mA)
24V Models
16V
24V
33V
DC
DC
Ceiling Mount Horn/Strobe 30 cd:
Average Mean Current (mA)
24V Models
16V
24V
33V
Ceiling Mount Horn/Strobe 95 cd:
Tone
Electromech.
In Rush Current (mA)
24V Models
33V
16V 20V
24V
Tone
Electromech.
High/Low
Volume
High
Low
3000 Hz High
Interrupt.
Low
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
Average Mean Current (mA)
24V Models
16V 20V
24V
33V
DC
FWR
DC FWR
DC
FWR
468
468
461
461
471
471
462
462
367
367
354
354
371
371
356
356
314
314
305
305
318
318
307
307
237
237
226
226
243
243
230
230
284
284
267
267
289
289
271
271
334
334
319
319
339
339
322
322
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.
Ceiling Mount Horn/Strobe 15 cd:
Ceiling Mount Strobe Only:
Average RMS Current (mA)
24V Models
20V 24V
16V
33V
Candela
15
15/75
30
75
95
115
177
DC
FWR FWR DC
FWR
DC
FWR
74
86
112
209
269
336
521
71
81
103
178
242
300
74
81
98
168
208
268
370
54
62
78
143
180
218
315
74
86
99
154
204
248
327
61
71
90
167
213
257
412 394
Tone
Electromech.
Low
3000 Hz High
Interrupt.
Low
Ceiling Mount Horn/Strobe 1575 cd:
Tone
Electromech.
High/Low
Volume
High
Low
3000 Hz High
Interrupt.
Low
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
DC
FWR
DC FWR
DC
FWR
101
101
94
94
104
104
95
95
105
105
94
94
108
108
95
95
94
94
85
85
98
98
87
87
91
91
80
80
97
97
84
84
129
129
112
112
134
134
116
116
Tone
Electromech.
Low
3000 Hz High
Interrupt.
Low
D900-22-00
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
Low
3000 Hz High
Interrupt.
Low
Average RMS Current (mA)
24V Models
16V
24V
33V
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
DC
FWR
DC FWR
DC
FWR
127
127
120
120
130
130
121
121
127
127
116
116
130
130
117
117
113
113
104
104
117
117
106
106
107
107
96
96
113
113
100
100
142
142
125
125
147
147
129
129
132
132
117
117
137
137
120
120
Average RMS Current (mA)
24V Models
16V
24V
33V
DC
FWR
DC FWR
DC
FWR
284
284
277
277
287
287
278
278
266
266
255
255
269
269
256
256
236
236
227
227
240
240
229
229
209
209
198
198
215
215
202
202
247
247
230
230
252
252
234
234
242
242
227
227
247
247
230
230
Tone
Electromech.
High/Low
Volume
High
Low
3000 Hz High
Interrupt.
Low
Tone
Electromech.
2
DC
FWR
DC FWR
DC
FWR
351
351
344
344
354
354
345
345
324
324
313
313
327
327
314
314
280
280
271
271
284
284
273
273
247
247
236
236
253
253
240
240
291
291
274
274
296
296
278
278
302
302
287
287
307
307
290
290
High/Low
Volume
High
Low
3000 Hz High
Interrupt.
Low
Average RMS Current (mA)
24V Models
16V
24V
33V
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
DC
FWR
89
89
82
82
92
92
83
83
95
95
84
84
98
98
85
85
DC FWR
DC
FWR
84
84
75
75
88
88
77
77
83
83
72
72
89
89
76
76
117
117
100
100
122
122
104
104
108
108
93
93
113
113
96
96
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
Average RMS Current (mA)
24V Models
16V
24V
33V
DC FWR DC FWR DC
FWR
224
224
217
217
227
227
218
218
197
197
180
180
202
202
184
184
202
202
191
191
205
205
192
192
190
190
181
181
194
194
183
183
202
202
187
187
207
207
190
190
172
172
161
161
178
178
165
165
Ceiling Mount Horn/Strobe 177 cd:
Ceiling Mount Horn/Strobe 115 cd:
Ceiling Mount Horn/Strobe 95 cd:
High/Low
Volume
High
Tone
Electromech.
High/Low
Volume
High
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
Ceiling Mount Horn/Strobe 75 cd:
Ceiling Mount Horn/Strobe 30 cd:
Average RMS Current (mA)
24V Models
16V
24V
33V
115
115
100
100
120
120
103
103
High/Low
Volume
High
Average RMS Current (mA)
24V Models
16V
24V
33V
Tone
Electromech.
High/Low
Volume
High
Low
3000 Hz High
Interrupt.
Low
Temp
/Non
Temp
Non
Temp
Non
Temp
Non
Temp
Non
Average RMS Current (mA)
24V Models
16V 20V
24V
33V
DC
FWR
DC FWR
DC
FWR
536
536
529
529
539
539
530
530
441
441
428
428
445
445
430
430
417
417
408
408
421
421
410
410
344
344
333
333
350
350
337
337
370
370
353
353
375
375
357
357
404
404
389
389
409
409
392
392
I56-1453-006R
Figure 1C: Sound Pressure Measurements
Sound Output Guide
Temporal Low Volume Electromechanical
3000 Hz Interrupted
High Volume Electromechanical
3000 Hz Interrupted
NonLow Volume Electromechanical
Temporal
3000 Hz Interrupted
High Volume Electromechanical
3000 Hz Interrupted
Figure 1D: Positioning for Maximum Brightness
NOTE: For maximum brightness,
unit must be mounted with
flash angles as shown.
Sound pressure
dBA @10 ft./volts DC
16
24
33
75
75
79
75
75
79
79
82
82
79
82
82
75
82
82
79
82
85
82
85
85
82
85
85
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 fieldselected using the dipswitch.
High/Low Volume:
High or low volume may also be field-selected using the dipswitch.
Figure 3A. Any combination of models powered by a 4-wire circuit to provide independent horn and strobe operation (Remove
factory installed jumpers, see Figure 3B):
NOTE: Strobes must be powered continuously for horn operation.
(+)
(+)
System Operation: Non-Synchronized Devices
(+)
(+)
H
O
R
N
H
O
R
N
H
O
R
N
E
O
L
(—)
Figure 2A. Any combination of models powered by a 2-wire circuit:
(+)
HORN
HORN/STROBE
STROBE ONLY
(+)
(+)
(+)
(+)
E
O
L
(–)
(–)
(—)
(–)
(–)
C
O
M
B
O
C
O
M
B
O
NOTE: Supply power must be continous for proper operation.
(+)
(+)
S
T
R
O
B
E
(+)
S
T
R
O
B
E
S
T
R
O
B
E
E
O
L
Figure 2B: Horns and strobes powered in tandem:
Figure 3B: Horns and strobes powered independently (Horn operated on coded power supply):
NOTE: Supply power must be continuous for proper operation.
NOTE: Strobes must be powered continuously for horn operation.
FROM FACP, MODULE
OR PREVIOUS DEVICE
FACTORY INSTALLED
SHORTING BAR
_ +
HORNS STROBES
FACTORY INSTALLED
JUMPER REMOVED
_+
_ +
STROBE +
STROBE +
HORN +
DIP
SWITCH
HORN +
STROBE -
STROBE -
HORN -
HORN -
_+
_ +
TO NEXT TO NEXT
HORN
STROBE
OR EOL OR EOL
TO NEXT DEVICE
OR EOL
D900-22-00
_ +
3
Break wire as shown for
supervision of connection.
DO NOT allow stripped wire
leads to extend beyond switch
housing. DO NOT loop wires.
I56-1453-006R
Mounting Diagrams:
Strobe or Horn/Strobe with universal mounting plate:
Screw types used for mounting:
A = #8 plastite
B = 8-32 x 3/4 pan head
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.
4x4x11⁄2
BBSCW (white)
BBSC (red)
B
B
A
A
Please refer to insert for the Limitations of Fire Alarm Systems
WARNING
The Limitations of Ceiling Mount Horn/Strobes
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 disregarded 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 uninterrupted source of power in order to operate correctly. System Sensor recommends that the horn and signal strobe always be used in combination
so that the risks from any of the above limitations are minimized.
Three-Year Limited Warranty
System Sensor warrants its enclosed horn. strobe, or horn/strobe to be
Department, RA #__________, 3825 Ohio Avenue, St. Charles, IL 60174.
free from defects in materials and workmanship under normal use and
Please include a note describing the malfunction and suspected cause of
service for a period of three years from date of manufacture. System
failure. The Company shall not be obligated to repair or replace units
Sensor makes no other express warranty for this horn, strobe, or
which are found to be defective because of damage, unreasonable use,
horn/strobe. No agent, representative, dealer, or employee of the
modifications, or alterations occurring after the date of manufacture. In no
Company has the authority to increase or alter the obligations or limitacase shall the Company be liable for any consequential or incidental damtions of this Warranty. The Company’s obligation of this Warranty shall be
ages for breach of this or any other Warranty, expressed or implied whatlimited to the repair or replacement of any part of the horn, strobe, or
soever, even if the loss or damage is caused by the Company’s negligence
horn/strobe which is found to be defective in materials or workmanship
or fault. Some states do not allow the exclusion or limitation of incidental
under normal use and service during the three year period commencing
or consequential damages, so the above limitation or exclusion may not
with the date of manufacture. After phoning System Sensor’s toll free
apply to you. This Warranty gives you specific legal rights, and you may
number 800-SENSOR2 (736-7672) for a Return Authorization number,
also have other rights which vary from state to state.
send defective units postage prepaid to: System Sensor, Repair
D900-22-00
4
I56-1453-006R
© 2000 System Sensor