wheelock ET70-24185W-FN, ET70-24185W-FR, ET70-24177W-FR, ET90-24100C-FR INSTALLATION INSTRUCTIONS
273 Branchport Avenue
Long Branch, NJ 07740 Thank you for using our products.
(800) 631-2148
www.wheelockinc.com
SERIES ET70/90 LOW PROFILE HIGH INTENSITY SPEAKER STR
INSTALLATION INSTRUCTIONS
OBES
Use this product according to this instruction manual. Please keep this instruction manual for future reference.
GENERAL:
Wheelock’s Series ET70/90 Low Profile High Intensity Speaker Strobes are UL Listed under Standard 1971 for Signaling Devices for
the Hearing Impaired and UL Standard 1480 for Speaker Appliances. They are designed for multiple power requirements with high
dBA output at each power tap. All models offer a choice of field selectable taps, 1/8W to 8W for either 25.0VRMS or 70.0VRMS
audio systems. The Low Profile design incorporates a high efficiency speaker for maximum output at minimum power across a
frequency range of 400Hz to 4000Hz, and features a sealed back construction for extra protection and improved audibility. The
Series ET appliances also incorporate a Speaker Mounting Plate attached to the speaker for ease of installation. The Low Profile
Speaker Strobes can provide a non-synchronized strobe appliance when connected directly to a Fire Alarm Control Panel (FACP), or
provide a synchronized strobe appliance when used in conjunction with a Sync Module (SM), Dual Sync Module (DSM) or
Wheelock’s Power Supplies. The Strobes use a Xenon flashtube with solid state circuitry enclosed in a rugged Lexan lens to
provide maximum visibility and reliability for effective visible signaling.
NOTE: “Lexan” is a registered trademark of General Electric Corporation.
NOTE
: All
CAUTIONS
and
WARNINGS
are identified by the symbol . All warnings are printed in bold capital letters.
WARNING: READ THESE INSTRUCTIONS CAREFULLY. FAILURE TO COMPLY WITH ANY OF THE FOLLOWING
INSTRUCTIONS, CAUTIONS AND WARNINGS COULD RESULT IN IMPROPER APPLICATION, INSTALLATION AND/OR
OPERATION OF THESE PRODUCTS IN AN EMERGENCY SITUATION, WHICH COULD RESULT IN PROPERTY
DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
SPECIFICATIONS:
Table 1: UL Listed Models and Ratings
Speaker Strobe
dBA at 10 Feet Regulated Voltage Mounting
Models Voltage (Rated Watts) (VDC/VRMS) Candela Options
(VRMS) 1/8 1/4 1/2 1 2 4 8 Min Nom Max
ET70-24150W 25/70 75 78 81 84 87 90 93 ---- ---- ---- 150 A,B
ET70-24177W 25/70 75 78 81 84 87 90 93 16 24 33 177 A,B
ET70-24185W 25/70 75 78 81 84 87 90 93 16 24 33 185 A,B
ET70-24150C 25/70 75 78 81 84 87 90 93 16 24 33 150 A,B
ET70-24177C 25/70 75 78 81 84 87 90 93 16 24 33 177 A,B
ET90-24150W 25/70 75 78 81 84 87 90 93 16 24 33 150 A
ET90-24177W 25/70 75 78 81 84 87 90 93 16 24 33 177 A
ET90-24185W 25/70 75 78 81 84 87 90 93 16 24 33 185 A
ET90-24150C 25/70 75 78 81 84 87 90 93 16 24 33 150 A
ET90-24177C 25/70 75 78 81 84 87 90 93 16 24 33 177 A
NOTES
:
1. Strobes will produce 1 flash per second over the “Regulated Voltage” range.
2. All models are UL Listed for indoor use with a temperature range of +32°F to +120°F (0°C to +49°C) and maximum humidity of
85% RH.
3. dBA is rated per UL Standard 1480 for Speaker Appliances.
NOTE: THE MAXIMUM WIRE IMPEDENCE BETWEEN STROBES SHALL NOT EXCEED 35 OHMS. THE MAXIMUM
NUMBER OF STROBES ON A SINGLE NOTIFICATION APPLIANCE CIRCUIT SHALL NOT EXCEED 47.
WARNING: THESE APPLIANCES WERE TESTED TO THE OPERATING VOLTAGE LIMITS OF 16-33 VOLTS USING
FILTERED (DC) OR UNFILTERED FULL-WAVE-RECTIFIED (FWR). DO NOT APPLY 80% AND 110% OF THESE
VOLTAGE VALUES FOR SYSTEM OPERATION.
Copyright 2003 Wheelock, Inc. All rights reserved.
P83493 B
Sheet 1 of 7
WARNING: CHECK THE MINIMUM AND MAXIMUM OUTPUT OF THE POWER SUPPLY AND STANDBY
BATTERY AND SUBTRACT THE VOLTAGE DROP FROM THE CIRCUIT WIRING RESISTANCE TO DETERMINE
THE APPLIED VOLTAGE TO THE STROBES.
Table 2: Current Ratings (AMPS)
Rated Average Current
Voltage 150cd 177cd 185cd
16.0VDC 0.506 0.570 0.545
24.0VDC 0.308 0.350 0.333
33.0VDC 0.227 0.250 0.245
16.0VRMS 0.773 0.865 0.820
24.0VRMS 0.469 0.540 0.520
33.0VRMS 0.398 0.415 0.410
Rated Peak Current *
Voltage 150cd 177cd 185cd
16.0VDC 0.768 0.850 0.800
24.0VDC 0.648 0.700 0.675
33.0VDC 0.800 0.900 0.850
16.0VRMS 2.400 2.500 2.450
24.0VRMS 1.800 2.100 1.950
33.0VRMS 1.800 2.000 1.900
* The time duration for the peak current is 1 millisecond.
NOTE: Inrush current is less than rated peak current.
WARNING: MAKE SURE THAT THE TOTAL AVERAGE CURRENT, TOTAL PEAK CURRENT AND TOTAL
INRUSH CURRENT REQUIRED BY ALL APPLIANCES THAT ARE CONNECTED TO THE SYSTEM’S PRIMARY
AND SECONDARY POWER SOURCES, NAC CIRCUITS, SM, DSM SYNC MODULES OR WHEELOCK’S POWER
SUPPLIES DO NOT EXCEED THE POWER SOURCES’ RATED CAPACITY OR THE CURRENT RATINGS OF ANY
FUSES ON THE CIRCUITS TO WHICH THESE APPLIANCES ARE WIRED. OVERLOADING POWER SOURCES OR
EXCEEDING FUSE RATINGS COULD RESULT IN LOSS OF POWER AND FAILURE TO ALERT OCCUPANTS
DURING AN EMERGENCY, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH
TO YOU AND/OR OTHERS.
When calculating the total average, peak or inrush currents: Use Table 2 to determine the highest value of “Rated Average Current”
for an individual strobe (across the expected operating voltage range of the strobe), and the highest value of “Rated Inrush Current” or
“Rated Peak Current” (whichever is higher) of an individual strobe (across the expected voltage range of the strobe), then multiply
these values by the total number of strobes; 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 inrush current or peak current exceeds the power supplies’ inrush 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.
CAUTION:
Strobes are not designed to be used on coded systems in which the applied voltage is cycled on and off.
P83493 B
Sheet 2 of 7
LIGHT DISTRIBUTION:
Horizontal 150C 177C 150W 177W 185W
Angle
(in deg.)
UL
Min.
0 150.0 212 177.0 237 150.0 212 177.0 237 185.0 234
5 135.0 198 159.3 218 135.0 198 159.3 218 166.5 242
10 135.0 172 159.3 195 135.0 172 159.3 195 166.5 238
15 135.0 168 459.3 195 135.0 168 159.3 195 166.5 239
20 135.0 167 159.3 190 135.0 167 159.3 190 166.5 241
25 135.0 169 159.3 193 135.0 169 159.3 193 166.5 243
30 112.5 162 132.8 183 112.5 162 132.8 183 138.8 251
35 112.5 163 132.8 185 112.5 163 132.8 185 138.8 255
40 112.5 152 132.8 175 112.5 152 132.8 175 138.8 271
45 112.5 134 132.8 155 112.5 134 132.8 155 138.8 272
50 82.5 102 97.4 121 82.5 102 97.4 121 101.8 259
55 67.5 93 79.7 109 67.5 93 79.7 109 83.3 205
60 60.0 93 70.8 103 60.0 93 70.8 103 74.0 177
65 52.5 84 62.0 93 52.5 84 62.0 93 64.8 167
70 52.5 79 62.0 88 52.5 79 62.0 88 64.8 150
75 45.0 72 53.1 82 45.0 72 53.1 82 55.5 121
80 45.0 67 53.1 77 45.0 67 53.1 77 55.5 90
85 37.5 72 44.3 81 37.5 72 44.3 81 46.3 68
90 37.5 55 44.3 64 37.5 55 44.3 64 46.3 63
Vertical 150C 177C 150W 177W 185W
Angle
(in deg.)
UL
Min.
0 150.0 214 177.0 242 150.0 214 177.0 242 185.0 234
5 135.0 207 159.3 239 135.0 207 159.3 239 166.5 255
10 135.0 203 159.3 231 135.0 203 159.3 231 166.5 267
15 135.0 200 159.3 228 135.0 200 159.3 228 166.5 239
20 135.0 196 159.3 228 135.0 196 159.3 228 166.5 231
25 135.0 194 159.3 224 135.0 194 159.3 224 166.5 243
30 112.5 187 132.8 218 135.0 187 159.3 218 166.5 237
35 112.5 182 132.8 210 97.5 182 115.1 210 120.3 193
40 112.5 172 132.8 200 69.0 172 81.4 200 85.1 152
45 112.5 160 132.8 184 51.0 160 60.2 184 62.9 110
50 82.5 137 97.4 155 40.5 137 47.8 155 50.0 89
55 67.5 130 79.7 152 33.0 130 38.9 152 40.7 87
60 60.0 109 70.8 123 27.0 109 31.9 123 33.3 84
65 52.5 88 62.0 97 24.0 88 28.3 97 29.6 84
70 52.5 70 62.0 78 22.5 70 26.6 78 27.8 83
75 45.0 65 53.1 70 19.5 65 23.0 70 24.1 81
80 45.0 48 53.1 54 18.0 48 21.2 54 22.2 77
85 37.5 43 44.3 49 18.0 43 21.2 49 22.2 80
90 37.5 38 44.3 49 18.0 38 21.2 49 22.2 60
Typ.
150C
Typ.
150C
Table 3: Horizontal Plane
UL
Min.
Typ.
177C
Table 3A: Vertical Plane
UL
Min.
Typ.
177C
UL
Min.
UL
Min.
Typ.
150W
Typ.
150W
UL
Min.
UL
Min.
Typ.
177W
Typ.
177W
UL
Min.
UL
Min.
Typ.
185W
Typ.
185W
P83493 B
Sheet 3 of 7
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