System Sensor ExitPoint PF24VA Installation And Maintenance Instructions Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS

PF24VA Directional Sounder with Voice Messaging

Specications

Mechanical

Input terminals: 12 – 24 AWG
Sounder size: 4 inches (101mm)
Grille Size: 4 7/8˝ (127mm)

Electrical

Voltage Input: Regulated 24 Volts DC
Operation Voltage Range: 16 to 33 Volts
Operating Humidity Range: 10% to 93% relative humidity non-condensing
Frequency range: 707 Hz to 11314 Hz
Operating Temperature range: 32° to 120°F (0° to 49°C)
Power: Selectable Low, Med-Low, Medium, Medium-High, High
Listings: ULC

NOTICE: This manual should be left with the owner/user of the equipment.

General Description

Before installing, please read the Directional Sound Ap­plications Guide, available through System Sensor. The
installation must meet the requirements of the authority
having jurisdiction, CAN/ULC S524 and CSA C22.1. Di­rectional sounders are used as supplemental signals on a
re alarm system to aid in the evacuation of building occu­pants. Although directional sounders may be connected to

notication appliance circuits (NAC) for re alarm service,
they are not a replacement for audible or visible notication

appliances as required by the authority having jurisdiction.

The directional sounder can be installed in systems us­ing 24 Volt DC regulated power supplies only. It is not ap­proved for use with FWR unregulated power supplies.

Directional sound is a broadband, multi-frequency sound.
The sound source is easily and quickly located by build­ing occupants, making it ideal for rapid building evacua­tion. The sounder incorporates four different speed settings
which consist of broadband noise. The four speed settings
can be used to create an egress pathway out of a build­ing. The speed setting should be set faster for units installed
at the perimeter exit. In addition to the broadband noise,
the sounder is capable of playing an alert message in the
form of a recorded voice message or other audible signals.
These messages will instruct the occupant of what action
to take as they approach the directional sounder. The voice
messages include: exit here, stairs up, stairs down, or area
of refuge.

Speed settings are made via DIP switches on the back
of the sounder.

Power Supply Considerations for
Directional Sounders

Panels typically supply DC ltered voltage or FWR (full­wave rectied) voltage. This device is only compatible with
DC ltered supplies and must not be used with panel sup-

plies that are FWR. Be certain the sum of all the device
currents do not exceed the current capability of the panel
power supply. Calculations are based on using the device
current found in Table 1 and must be the current specied
for the installed settings of the device.

Wire Sizes

The last device on the circuit must have sufcient voltage

to operate the device within its rated voltage range. 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”).

Typical wire size resistance:

18 AWG solid: Approximately 8 ohms/1,000 ft.
16 AWG solid: Approximately 5 ohms/1,000 ft.
14 AWG solid: Approximately 3 ohms/1,000 ft.
12 AWG solid: Approximately 2 ohms/1,000 ft.

Example: Assume you have 10 devices on a zone and
each requires 50mA 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 × 10 devices × 3
ohms/1000 ft. × 2000 ft. = 3 volts drop.

6581 Kitimat Road, Unit 6

Mississauga, Ontario. L5N-3T5

www.systemsensor.ca

D690-06-00 1 I56-3071-000

The same number of devices using 12 AWG wire will pro­duce only a 2 volt drop. The same number of devices using
18 AWG wire will produce an 8 volt drop. Consult your panel
manufacturer’s specications, as well as the sounder’s op­erating voltage to determine the acceptable voltage drop.

NOTE: If class “A” wiring is installed the wire length may
be up to 4 times the single wire length in this calculation.

Table 1. Current Draw Measurements and
Sound Output Guide:

Maximum DC

Speed Selection

DIP Switch

Selection

FAST (exit) 10 High 185 98 75

FAST (exit) 10 Med-High 131 95 72

FAST (exit) 10 Med 78 92 69

FAST (exit) 10 Med-Low 76 89 66

FAST (exit) 10 Low 64 86 63

MED-FAST 9 High 170 98 74

MED-FAST 9 Med-High 124 95 71

MED-FAST 9 Med 75 93 68

MED-FAST 9 Med-Low 73 90 65

MED-FAST 9 Low 62 87 62

MED-SLOW

MED-SLOW

MED-SLOW

MED-SLOW

MED-SLOW

SLOW 7 High 163 98 72

SLOW 7 Med-High 103 95 69

SLOW 7 Med 76 92 66

SLOW 7 Med-Low 61 89 63

SLOW 7 Low 61 86 60

8 High 160 97 73

8 Med-High 104 95 70

8 Med 76 92 67

8 Med-Low 65 89 64

8 Low 57 87 61

Power

Setting

Operating

Current

(mA RMS)

(16 to 33V)

Audibility

(dBA)
(16 to

33V)

Note 1

Audibility

(dBA)
(16 to

33V)

Note 2Speed

NOTE 1: Sound output measured in an anechoic room at 10

feet.

NOTE 2: Sound output measured in a reverberant room
at 10 feet.

Installation

Consult the Directional Sound Applications Guide (A05­1048-XXX) for information regarding the appropriate
mounting locations of directional sounders.

DIP Switches for Speed Settings

DIP switch positions 7-10 are used to select the speed set­ting of the sounder. Switch 10 is the fastest speed and is
used to mark perimeter exits and stairwells. The remain­ing settings are used for egress guidance to the perimeter
exits. The egress route would begin with the slow setting
(switch 7) and follow medium fast (switch 9) and medium

slow (switch 8) and nally the fast setting (switch 10). If

more than one switch is selected the sounder will default to
the fastest setting.

DIP Switch Settings for Alerting Messages

DIP switch positions 5 and 6 are used to select additional
tone pulses that can be inserted between bursts of direc­tional sound pulses. These messages are used to give
building occupants instructions. There are four messaging
options to choose from. “Stairs Up” (Switch 5 off, Switch 6
on) will notify occupants that they are approaching a stair­well and will need to go up. “Stairs Down” (Switch 5 on,
Switch 6 off) will notify occupants that they are approach­ing a stairwell and will need to go down. “Area of Refuge”

(Switches 5 & 6 on) alerts people who need to nd these

areas of refuge in a building. “Exit Here” (Switches 5 & 6
off ) noties occupants that they have reached the perim­eter exit.

Table 2. Additional Tone Selection Guide:

DIP Switch

Position 5

Setting

on on Area of Refuge

on off Stairs DOWN

off on Stairs UP

off off Exit Here

DIP Switch

Position 6

Setting

Sound Output

DIP switch setting 4 enables a directional sound device to
become disabled when used in conjunction with devices
with dry contacts such as heat sensors or control modules.
The sounder has a set of input terminals that can be con-

gured for an “active open” or “active closed” state. When

the switch is in the “on” position, the sounder is “on” when
the disable connection is closed. When the switch is in the
“off” position, the sounder is “on” when the disable connec­tion is open. See Table 3 for operation modes.

Table 3. Enable/Disable Function Logic Table:

DIP Switch

Position 4

Setting

on open disabled

on closed enabled

off open enabled

off closed disabled

Wiring

Terminals

3 & 4

Sound
Output

There are ve different power settings for the sound output

pressure. Switch settings 1, 2, and 3 set the power set­ting for the sounder. Switch 1 selects the Med-High setting,
switch 2 selects the Medium setting, switch 3 selects the
Med-Low setting. If all three switches are “off” this selects
the High setting and if all three switches are “on” this se­lects the Low setting.

Directional Characteristics are as follows:

-3dBA angles- 40, 130 horizontal and vertical

-6dBA angles- 15, 160 horizontal and vertical

D690-06-00 2 I56-3071-000