Edwards Signaling Strobe Signal Appliance Installation Instructions

Installation Instructions for Strobe Signal Appliance

DESCRIPTION

The strobes are high quality notification appliances intended for public
mode applications in accordance with the latest edition of NFPA 72,
National Fire Alarm Code. It is recommended that these products be
installed in accordance with the requirements in the latest edition of
national and local fire alarm and electrical codes. The 15/75 cd model and
the 110 cd model strobes are suitable for indoor or outdoor applications.
For outdoor use, the strobes must be installed with a weatherproof
backbox, model 449.

The strobes are self-synchronized to flash at 1 fps across their full
operating voltage range. Studies show that people with photosensitive
conditions may experience a photoconvulsive response from random
flashes of light. This risk is minimized with these strobes. The strobe
operates on any existing 2-wire signal circuit. Separately installed "sync
control modules" are not required.

Synchronization of less than 200 milliseconds will be maintained for no
less than 60 hours supervision followed by 30 minutes in alarm.

See Figures 3 and 4 for product specifications.

INSTALLATION

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ARNING: This device will not operate without electrical power. As fire s

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frequently cause power interruptions, discuss further safeguards with your local
fire protection specialist.

To reduce the risk of shock, always disconnect all power before handling
the unit.

To reduce the risk of shock, do not tamper with unit when circuit is energized.
Disconnect all power and allow 5 minutes for stored energy to dissipate
before handling.

1. For indoor mounting, select a Standard North American 2 gang X 1-1/2"
(38 mm) deep electrical box (52151 Series or equivalent). For outdoor
mounting, use a weatherproof model 449 backbox. Install the electrical
box using suitable hardware.

2. Bring signaling circuit field wiring into the electrical box.

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UTION:UTION:

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UTION: Electrical supervision requires wire run to be broken at each

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device. Do not loop signaling circuit field wires around terminals.

3. Connect this unit to a signaling circuit that outputs a constant (not
pulsed) voltage. To ensure proper unit function, polarity must be
observed. Refer to Figure 2 for wiring connections. For additional
wiring connection details, see the installation instructions supplied with
the control panel.

4. When connections are complete, mount the unit onto the electrical box as
follows:

a. For indoor mounting, secure the unit using two Phillip head screws

(supplied). Complete the enclosure by installing two hole plugs
(Part Number P-038845-0019 (supplied)) into the two unused holes
in the back plate.

b. For outdoor mounting, secure the unit using the four Phillip head

screws (supplied). Discard the two plastic caps (supplied).

5. Apply power and activate the unit to verify that it is operating properly.

MAINTENANCE

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UTION: Should the unit fail to operate properly, do not attempt repair.

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Contact the supplier for replacement.

Perform a visual inspection and an operational test twice a year or as directed
by the local authority having jurisdiction.

*

*

SIDE VIEW,

CEILING MOUNTED

*Text offered in various styles and languages. Order either the

SIDE VIEW,

WALL MOUNTED

FRONT VIEW,

WALL MOUNTED

Figure 1. Detailed View

LKC Series (Ceiling) or LKW Series (Wall) Lens Kit Separately.
LKW-1 ("FIRE", wall orientation) is supplied with the strobe.

+

To Listed Fire Alarm
Control Panel (signal
circuit)

-

End-of-line resistor

(supplied with control panel)

-

CAUTION: This unit is designed to be used on signal circuits that output a constant voltage of 20-24 VDC. Do not connect this unit to a coded or
pulsating voltage. Electrical supervision requires wire run to be broken at each terminal. Do not loop signaling circuit field wires around strobe terminals.

Figure 2. Connecting Strobe Units with Terminal Blocks

SPECIFICATIONS

Operating voltage: 20-24 Vdc
Operating current: See figure 3
Flash rate (per second) 1 fps (synchronized)
Light output (cd)

UL 1971 -7A: 15 cd wall UL 1971 - 8A: 110 cd wall

15 cd ceiling 60 cd ceiling

UL 1638 - 7A: 75 cd UL 1638 - 8A: 120 cd

Operating environment

Indoor 85% relative humidity @ 86 °F (30 °C), 32 °F to 120 °F

Outdoor 93% relative humidity @ 86 °F (30 °C), -40 °F to 151 °F

NOTE: The 8A strobe may be used in sleeping areas. When used in sleeping
areas, the strobe must be wall mounted not less than 24 in. (601 mm) from ceiling
and no more than 16 feet (4.88 m) from the pillow. Distance to the ceiling is
measured from top of signal lens.

(0 °C to 49 °C) variable ambient temperature

(-40 °C to 66 °C) variable ambient temperature (with
weatherproof box)

P/N 387627 © 1996

NOTE: This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct the
interference at his own expense.

CAUTION: Changes or modifications to this equipment not expressly approved by
the party responsible for compliance could void the user’s authority to operate the
equipment.

Electronic strobes

CS405-7A-T Electronic strobe, 15/75 cd red
CS405-8A-T Electronic strobe, 110 cd red

200

18 5

175

18 0

17 5

17 0

16 5

150

15/75 cd Model

125

12 5

100

Operating Current (mA)

12 4

116

113

10 5

20 21 22 23 24

Operating Voltage DC

Peak Inrush Current @ 24 Vdc = 7.6 A for

less than 50 microseconds.

350

340

110 cd Model

Iavg

Irm s

Ipeak

325

335

300

275

265

250

225

200

Operating Current (mA)

20 21 22 23 24

Operating Voltage DC

Peak Inrush Current @ 24 Vdc = 7.8 A fo r

260

330

245

325

315

235

219

less than 50 microseconds.

NOTE: Use the average current rating to establish the maximum number of strobes, wire gauge and standby power requirements. Consult the

manufacturer to determine the peak current effects on the system.

550

530

526 524

522 520

450

350

250

150

50

Operating Current (mA)

18 6 18 1

19 0

10 2

98

17 7

94 92

20 21 22 23 24

Operating Voltage Full Wave Rectified

Peak Inrush Current @ 24 Vdc = 6.8 A for

less than 50 microseconds.

950

910

900

890

850

870

750
650
550
450
350
250
150

Operating Current (mA)

385

235

370 363

220

210

357

200

20 21 22 23 24

Operating Voltage Full Wave Rectified

Peak Inrush Current @ 24 Vdc = 6.8 A for

less than 50 microseconds.

Figure 3. V/I Curves

17 2

90

828

330

19 0

15/75 cd

Model

110 cd
Model

90

75

60

45

30

15

0

Θ

-15

-30

-45

-60

-75

-90

0 10 2030 4050607080

90

75

60

45

30

15

0

Θ

-15

-30

-45

-60

-75

-90

0 25 50 75 100 125 150 175

(c d)

(cd )

Horizontal

90

75

60

45

30

15

0

Θ

-15

-30

-45

-60

-75

-90

0 102030 4050607080

90

75

60

45

30

15

0

Θ

-15

-30

-45

-60

-75

-90

0 25 50 75 100 125 150 175

(c d)

(c d)

0

20

40

60

80

0

25

50

75

10 0

12 5

15 0

V ertical

Figure 4. Strobe Light Output Distribution Patterns

Θ

Θ

Ceiling

UL Minimum
Requirement

Typical Output

O

-90

HORIZONTAL

-90

O

90

O

VERTICAL

O

90

P/N 387627 © 1996