Johnson Controls METASYS PS12ADA Series User manual

Fire Initiating Devices and Notification Appliances Technical Manual 408
Notification Appliances Section
Technical Bulletin
Issue Date 1095
© 1995 Johnson Controls, Inc. 1
Code No. LIT-408240
Introduction Page 3
● General Description 4
Installation Procedures 9
● General Information 9
● Mounting 9
● Wiring Installation Guidelines 14
● Limitations 15
PS12/24ADA Series Signaling Strobe and Sounder

2 Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder

Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder 3
Introduction
This document contains important information about installing and
operating PS12/24ADA series signaling strobes and piezo electronic
sounders. These strobes and sounder/strobes are manufactured by System
Sensor for use with Johnson Controls systems. The strobes are UL 1971
Listed for signaling devices for the hearing impaired. Those models that
produce 75 candela (cd) meet the Americans with Disabilities Act (ADA)
light output requirements of 75 cd on axis. Those strobes that produce less
than 75 candela may be considered as meeting ADA equivalency
requirements when applied per the National Fire Protection Association
National Fire Code Standard (NFPA-72) and with the approval of the local
authority having jurisdiction.
These instructions apply to the entire PS12/24ADA series signaling
strobes and sounders. Follow only those instructions that apply to the
model you are installing. If you install this strobe for someone else to use,
you must leave a copy of this document with the user.
Before you install any PS12/24ADA series signaling strobes and sounders,
read and be familiar with:
●the control panel system installation manual
●the requirements of the authority having jurisdiction
●National Fire Protection Association
(NFPA)-72-National Fire Alarm Code
●System Sensor Strobe Compliance Reference Guide, which provides
detailed information on strobe spacing, placement, zoning, and ADA
requirements
●or, for non-United States installations, applicable codes and standards
specific to the country and locality of installation
Failure to follow these directions may result in failure of the device to
report an alarm or trouble condition. Johnson Controls is not responsible
for devices that have been improperly installed, tested, or maintained
by others.
As is the case with all installations under NFPA, Underwriters
Laboratories, Inc. (UL), Underwriters Laboratories of Canada (ULC), or
Canadian Electrical Code classification, final written approval of
permissible operation and configuration rests with the authority having
jurisdiction.

4 Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder
!
CAUTION: Equipment hazard. Do not use in potentially
explosive atmospheres. Do not leave unused
wires exposed.
The piezo electronic sounder and signaling strobe are intended to be
connected to the alarm indicating circuit of a UL Listed fire alarm control
panel. Both sounder and strobe are compatible with DC line supervision.
The electronic sounder can be connected to either 12 or 24 VDC panels.
The strobes produce one flash per second (nominal) with continuous
nominal voltage applied.
Note: The strobe cannot operate from coded power supplies, which
produce interrupted power. The strobe must have an uninterrupted
source of power in order to operate correctly.
General
Description

Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder 5
Table 1: PS12/24ADA Series Specifications
Mechanical
Input Terminals 12 to 18 AWG (3.31 to 0.82 mm2)
Dimensions 4 in. W x 7 in. L
(101.6 mm W x 177.8 mm L)
Front of Backbox to Front of Unit
Front of Backbox to Back of Unit 3 in. (76.2 mm)
1/2 in. (12.7 mm)
Electrical
Supply Voltage Range 10.5-17 VDC or
20-30 VDC
Operating Temperature Range 32 to 120°F (0 to 49°C)
98% maximum RH
Not suitable for outdoor use.
Strobe Light Ratings
Model Rated Light Output
PS2415ADA
PS2415ADAW
PS1215ADA
PS1215ADAW
15 cd (Figure 1)*
PS121575ADA
PS121575ADAW
PS241575ADA
PS241575ADAW
PS2475ADA
PS2475ADA W
75 cd (Figure 1)*
PS24110ADA
PS24110ADAW 110 cd (Figure 1)
The strobes are available in red and white. The W suffix indicates white.
* All strobes are UL 1971 Listed. Models with outputs of 75 candela (cd) are suitable for
use in locations requiring compliance with ADA requirements. The 15/75 cd strobe has
been measured to be 75 cd at 0° viewing angle. The 15 cd strobes may be considered
ADA equivalent when applied per NFPA-72 and have the approval of the authority
having jurisdiction.
Design Strobe Flash Rate 1 Hz
Peak dBA 90 dBA (24 volt)
83 dBA (12 volt)
Note: dBA is measured in an anechoic room at 10 feet. Greater than 90 dBA measured in
anechoic room at 10 feet, 24 volts; 79 dBA minimum measured in UL reverberant
room at 12V and 82 dBA at 24V.
Accessories
Semi-flush Mounting Plate PS-FP

6 Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder
UL 1971 requires a polar light distribution pattern to enhance the
likelihood of alerting hearing impaired individuals throughout an area.
Figure 1 illustrates the way the standard measures light intensity, both
horizontally and vertically.
Figure 1: Vertical and Horizontal Light Dispersion
Light Distribution
lightdis.drw
Wall Mount Horizontal Light Distribution
Wall
Li
g
ht
90
45
0
-90
-45
Zero Axis
Wall
Floor
0
5
10
15
20
25
90 85 80 75 70 65 60 55 50 45 40 35 30
Wall Mount Vertical Light Distribution
De
g
rees
Percent
of Rated
Li
g
ht Output
100
90
65
48
34
27
22
18
16
15
13
12
12
12
0
5-30
35
40
45
50
55
60
65
70
75
80
85
90
De
g
rees
Percent
of Rated
Li
g
ht Output
100
90
75
55
45
40
35
35
30
30
25
25
0
5-25
30-45
50
55
60
65
70
75
80
85
90

Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder 7
All models can be powered using Full-Wave Rectified (FWR), unfiltered
(unregulated) power supplies. However, if the power supply is
unregulated, the notification appliance must be compatibility listed for use
with the fire alarm system. If the power supplied is from a regulated
power supply, no compatibility listing is required. In addition, follow the
guidelines listed below:
●Under no circumstances can PS24ADA series devices input voltage
exceed 33 VDC or be less than 16 VDC peak when using a regulated
power supply. When using an unregulated power supply, the range is
16-33 VRMS.
●Under no circumstances can a PS12ADA or MASS12ADA series
device input voltage exceed 18.7 VDC or be less than 8.5 VDC for a
regulated power supply. When using an unregulated power supply,
the range is 8.5-18.7 VRMS.
Table 2: PS12/24ADA Series Operating Current from Regulated Supply
Model Operating
Voltage Supply Voltage
Range
Average
Operating
Current
(mA)
Peak Current
(mA)
20/30V
Peak Current
(mA)
10.5/17V
PS24110ADA
PS24110ADAW 24 volt 20-30V 225 470/500 —
PS2475ADA
PS2475ADAW 24 volt 20-30V 185 385/400 —
PS2415ADA
PS2415ADAW 24 volt 20-30V 90 160/180 —
PS1215ADA
PS1215ADAW 12 volt 10.5-1V 182 — 360/380
PS241575ADA
PS241575ADAW 24 volt 20-30V 108 210/220 —
PS121575ADA
PS121575ADAW 12 volt 10.5-17V 240 — 510/560
Note: The strobes are available in red and white. The W suffix indicates white.
Power
Requirements

8 Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder
Table 3: Operating Current from Full-Wave Rectified, Unfiltered, Unregulated Supply
Model Operating
Voltage Supply Voltage
Range
Average
Operating
Current
(mA RMS)
Peak Current
(mA)
20 VRMS/
30 VRMS
Peak
Current
(mA)
10.5 VRMS/
17 VRMS
Inrush
Current
(mA in Excess
of Peak)
PS24110ADA
PS24110ADAW 24 volt 20-30V 260 400/500 -- 80
PS2475ADA
PS2475ADAW 24 volt 20-30V 215 320/370 -- 40
PS2415ADA
PS2415ADAW 24 volt 20-30V 105 275/290 -- 20
PS1215ADA
PS1215ADAW 12 volt 10.5-17V 212 -- 330/380 20
PS241575ADA
PS241575ADAW 24 volt 20-30V 135 275/290 -- 1000
PS121575ADA
PS121575ADAW 12 volt 10.5-17V 285 -- 500/530 20
Note: Inrush current duration is less than 20 microseconds (0.00002 seconds).
Note: Inrush current refers to current that exceeds the peak current when
the strobe is first turned on. Once the strobe is turned on, it flashes
one flash per second. Peak current indicates the current rising
above the average operating current right after each strobe flash.

Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder 9
Installation Procedures
This section contains installation information for PS12/24ADA series
strobes and sounder/strobes. Mounting instructions and wiring
information are provided.
Installation procedures must conform to all applicable codes and the
requirements of the authority having jurisdiction.
For strobe placement, read and be familiar with:
●NFPA 72-National Fire Alarm Code
Both slotted-head and Phillips-head screws are supplied with the
speaker/strobe.
●Use the slotted-head screws to mount the semi-flush plate to the
electrical box.
●Use the Phillips-head screws to attach the PS12/24ADA to a
semi-flush plate or to the electrical backbox.
Note: The rated output of the sounder is specified at ten feet on axis.
It cannot be assumed that the output will meet the NFPA standard
of 15 dB over ambient noise at all locations within a room.
Additional sounders may be needed to ensure that the sound output
level complies with NFPA requirements.
Strobe and sounder/strobe combination are designed for wall mounting
only. The PS12/24ADA is intended for mounting to a standard 2-1/2 inch
deep single gang box which allows for sufficient clearance for conduit
entrance.
All strobes must be mounted where the top of the lens is 24 inches below
ceilings or as required by the authority having jurisdiction.
For mounting the sounder/strobe, note the following figures:
●Surface Mount (Figure 2)
●Semi-flush Mount (Figures 3 and 4)
●Semi-flush Mount with Plaster Ring or Double Gang Box (Figure 5)
General
Information
Strobe Placement
Mounting
General
Sounder/Strobe
Combination
Mounting

10 Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder
Table 4: Screw Types for Figures
Letter Screw Type
A6-32 x 1-1/2 in. Phillips-head, Oval
BNo. 8-32 x 5/8 in. Slotted-head, Pan
CNo. 6-32 x 5/8 in. Slotted-head, Pan
DNo. 8 Phillips-head Sheet Metal, Oval
Sin
g
le Gan
g
Backbox
ps12mta
A
A
Figure 2: Surface Mount to Single Gang Box
1. Complete the field wiring as described in the Wiring Installation
Guidelines section of this technical bulletin (Figure 7).
2. Screw the PS12/24ADA to the backbox with Type A screws.
Mounting Figures

Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder 11
ps12mntc
A
A
Sin
g
le Gan
g
Backbox
PS-FP Semi-flush Plate
Figure 3: Semi-flush Mount to Single Gang Box
1. Complete the field wiring as described in the Wiring Installation
Guidelines section of this technical bulletin (Figure 7).
2. Screw the PS12/24ADA to the backbox with Type A screws.

12 Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder
D
D
ps12mntb
B
B
4 inch S
q
uare Backbox
PS-FP Semi-flush Mountin
g
Plate
Figure 4: Semi-flush Mount to 4 inch Square Backbox
1. Screw semi-flush plate to 4 inch square backbox with Type B screws.
2. Complete the field wiring as described in the Wiring Installation
Guidelines section of this technical bulletin (Figure 7).
3. Screw the PS12/24ADA to semi-flush plate with Type D screws.

Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder 13
D
D
ps12mtd
C
C
C
C
4 inch S
q
uare Backbox
Plaster Rin
g
PS-FP Semi-flush Mountin
g
Plate
Figure 5: Semi-flush Mount with Plaster Ring
1. Screw semi-flush plate to box with Type C screws.
2. Complete the field wiring as described in the Wiring Installation
Guidelines section of this technical bulletin (Figure 7).
3. Screw the PS12/24ADA to the semi-flush plate with Type D screws.

14 Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder
Note: Do not loop the Notification Appliance Circuit (NAC) wires under
the terminal screw. Wires must be broken at the device terminal
connection in order to maintain electrical supervision.
This Not This
wirguide
Figure 6: Electrical Connections
NAC
From
Control
Panelor
Previous
Device
To
End-of-Line
or
Next Device
pswire
Figure 7: Wiring the PS12/24ADA
Note: The wiring is shown with the control panel in alarm. Polarity is
reversed in supervisory condition.
The minimum recommended wire size for the NAC is 18 AWG, but larger
wire size may be required to assure minimum operating voltage at each
device when considering the total load current, wire resistance, and
resulting voltage line loss.
Wiring
Installation
Guidelines
Wiring Diagram

Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder 15
These signaling strobes and sounders are designed for installation in
accordance with NFPA-72-National Fire Alarm Code or equivalent codes
and standards applicable to the country of installation. Test your alarm
system per the applicable codes and standards specific to the location and
use of your facility.
●The signaling strobes and sounders will not work without power. The
strobe/sounder gets its power from the fire/security panel monitoring
the alarm system. If power is cut off for any reason, the
strobe/sounder will not provide the desired audio or visual warning.
●The sounder may not be heard. The loudness of the sounder meets or
exceeds current Underwriters Laboratories standards. However, the
sounder may not alert a sound sleeper, one who has recently used
drugs, or one who has been drinking alcoholic beverages. The
sounder may not be heard if it is placed on a different floor from the
person in hazard, or if it is placed too far away to be heard over
ambient noise such as traffic, air conditioners, machinery, or music
appliances that may prevent alert persons from hearing the alarm.
The sounder may not be heard by persons who are hearing impaired.
●The signaling strobe may not be seen. The electronic visual warning
signal that flashes at least once every three seconds meets or exceeds
current Underwriters Laboratories Standard 1971, and uses an
extremely reliable xenon flashtube. The visual warning signal is
suitable for direct viewing and must be installed within an area where
it can be seen by building occupants. The strobe must not be installed
in direct sunlight or in 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 signaling strobe may cause seizures. Individuals who have a
positive photic response to visual stimuli with seizures, such as
epileptics, should avoid prolonged exposure to environments in which
strobe signals, including this strobe, are activated.
●Johnson Controls recommends that the signaling strobe and sounder
be used in combination to minimize risk.
●The signaling strobe cannot operate from coded power supplies.
Coded power supplies produce interrupted power. The strobe must
have an uninterrupted source of DC power in order to operate
correctly.
Limitations

16 Notification Appliances—PS12/24ADA Series Signaling Strobe and Sounder
Notes
Controls Group FAN 408
507 E. Michigan Street Fire Initiating Devices and Notification Appliances Technical Manual
P.O. Box 423 Printed in U.S.A.
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