EDWARDS 888D & 889D Horns Installation guide

EDWARDS
Brand
EDWARDS
Model
888D & 889D Horns
Category
Fire protection
Type
Installation guide
© 2014 UTC Fire & Security Americas Corporation, Inc. 1 / 2 P/N P-047550-0395-EN • REV 04 • ISS 24JAN14
888D-N5 and 889D-AW Explosion-Proof
AdaptaHorns Installation Sheet
Description
Edwards’ explosion-proof AdaptaHorn signals, catalog
numbers 888D-N5 and 889D-AW, are heavy-duty vibrating
horns intended for use where distinctive audible signals are
required in a hazardous location having high ambient noise
levels.
These horns include a series diode and are suitable for use in
fire alarm systems and other applications requiring electrical
supervision of signal circuit installation wiring.
The 888D-N5 is AC-powered and the 889D-AW is
DC-powered. They are UL Listed for indoor use in Class I,
Groups B, C, and D; Class II, Groups E, F, and G; and Class III
locations, for both Divisions 1 and 2.
Installation
The following items (not supplied) are required for installation
of the horn:
• 3/4 in. conduit to contain power supply wires.
• One explosion-proof conduit outlet box suitable for use in
the hazardous location.
• One 3/4-14 National Pipe Taper (NPT) nipple.
• Two fasteners up to 3/8 in. diameter and washers suitable
for securing the horn to mounting surface. The horn can
be mounted to any solid surface.
WARNING: Electrocution hazard. Do not apply power to the
horn until installation has been completed and cover has been
secured on outlet box.
To install the horn:
1. See Figure 1. Remove the cover from the conduit outlet
box. Feed the two power supply wires from control panel
or previous signal and the two wires to next signal or end-
of-line device through conduit into the outlet box.
Also, feed the horn's three power connection wires
through the nipple, which connects the horn to the outlet
box, into the box. Secure the horn and conduit to the outlet
box.
2. With the horn placed against mounting surface, mark
mounting hole positions for fasteners as per Figure 1.
Install fasteners with washers through mounting brackets
and secure unit to surface.
3. Make the required power supply wiring connection and
make wiring connection to next signal or end-of-line device
in outlet box. For 888D-N5, see Figure 2. For 889D-AW,
see Figure 3.
4. Apply power to the fire alarm control panel. Initiate an
alarm to activate the horn and verify that it sounds. Then
reset the panel and verify that the horn silences.
2 / 2 P/N P-047550-0395-EN • REV 04 • ISS 24JAN14
Wiring
Figure 1: Signal mounting details
Figure 2: 888D-N5 - Fire alarm system use or other applications
requiring a supervised signaling circuit
Note: Supervisory DC voltage polarity is shown. On alarm, the
voltage switches to 120 VAC.
Figure 3: 889D-AW - Fire alarm system use or other applications
requiring a supervised signaling circuit.
Note: Supervisory DC voltage polarity is shown. On alarm, the
polarity reverses.
Maintenance
Examine the horn annually for accumulation of dirt and clean if
necessary. Test the horn annually or at the intervals required
by applicable fire regulations.
Electrical specifications
Catalog
number
Rated
voltage
Alarm
current
dBA rating
(anechoic )[1]
dBA rating
(reverb.)[2]
888D-N5 120 VAC 0.165 A 100 90
889D-AW 20 - 24 VDC 0.16 A 97 84
[1] dBA rating at 10 ft., typical rating measured in an anechoic
chamber. Sound level rating as measured with “A” weighted scale.
[2] dBA rating at 10 ft. per UL 464; sound level output rating
measured in a reverberant room. Sound level rating as measured with
“A” weighted scale.
Regulatory information
Manufacturer Edwards, A Division of UTC Fire & Security
Americas Corporation, Inc.
8985 Town Center Parkway, Bradenton, FL
34202, USA
North American
standards
UL 1203
Contact information
For contact information, see www.edwardssignaling.com.
Mark mounting
holes
(2) Mounting
brackets for 3/8 in.
(9 mm) diameter
fasteners
Explosion-proof conduit
outlet box
3/4 in. conduit
(not furnished)
7-3/8 in. ± 1/8 in.
(187mm ± 3mm)
(106mm)
Power connection wires
embedded in sealing compound
Installation wiring:
(2) Power supply wires from fire
alarm control panel or previous
signal, (2) wires to next signal o
r
end-of-line device
(
as required
)
3/4 in. -14 NPT nipple
(not furnished)
2-1/4 in.
(57mm)
6-1/2 in.
(165mm)
TYP
7-5/8 in.
(194mm)
4-3/16 in.
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EDWARDS 888D & 889D Horns Installation guide

EDWARDS
Brand
EDWARDS
Model
888D & 889D Horns
Category
Fire protection
Type
Installation guide
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