System Sensor PF24V User Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS

3825 Ohio Avenue, St. Charles, Illinois 60174

1.800.SENSOR2; Fax: [phone]

PF24V Directional Sounder with Voice Messaging

SPECIFICATIONS

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: UL 464 Directional Sounder, supplemental notification appliance, ULC S524
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 fire alarm system to aid in the
evacuation of building occupants. Although directional sounders may be con­nected to notification appliance circuits (NAC) for fire alarm service, they are
not a replacement for audible or visible notification 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 filtered voltage or FWR (full-wave rectified) volt­age. This device is only compatible with DC filtered supplies and must not be
used with panel supplies 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 specified for the installed settings of the device.

WIRE SIZES

The last device on the circuit must have sufficient 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.

D690-06-00 1 I56-2961-001R

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.

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 specifications, 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 120 98 72

SLOW 7 Med-High 92 95 69

SLOW 7 Med 62 92 66

SLOW 7 Med-Low 61 89 63

SLOW 7 Low 54 86 60

8 High 135 97 73

8 Med-High 104 95 70

8 Med 67 92 67

8 Med-Low 65 89 64

8 Low 57 87 61

Power

Setting

Operating

Current

(mA RMS)

(16 to 33V)

NOTE 1: Sound output data is peak dB measured in ULC anechoic room at 10 feet.
NOTE 2: Sound output measured in a reverberant room at 10 feet.

www.systemsensor.com

Audibility

(dBA)
(16 to

33V)

Note 1

Audibility

(dBA)
(16 to

33V)

Note 2Speed

I56-2961-001R

INSTALLATION

Consult the ExitPoint Applications Guide (A05-1048-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 finally 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 find these areas of refuge in a building.
“Exit Here” (Switches 5 & 6 off ) notifies 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 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
configured 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

There are five 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

DIP Switch

Position 6

Setting

Position 4

Setting

on open disabled

on closed enabled

off open enabled

off closed disabled

Wiring

Terminals

3 & 4

Sound Output

Sound
Output

TABLE 4. POWER SETTING GUIDE:

DIP Switch
Position 1

Setting

NOTE 1: Any other combinations of switch setting for positions 1, 2, and 3 are
invalid and should not be used.
Consult the ExitPoint Applications Guide for information regarding the appro­priate power, speed, and additional tone selections.

LANGUAGE SELECTION

Language selection and audible tones are selected via the rotary code switch.
If no language is selected, the device is capable of playing audible tones to
alert occupants of stairs up, stairs down, and area of refuge. Refer to Table 5
language selection and Figure 3 for diagram.

TABLE 5. LANGUAGE/AUDIBLE TONE SELECTION GUIDE:

ELECTRICAL

Connect the Sounder as shown in Figure 1 for 2-wire applications. Connect
the sounder as shown in Figure 2 for 4-wire applications.

4-wire notification appliance circuits are circuits that use a separate power
supply and pair of wires for sounder and strobe circuits. Some types of no­tification circuits may provide coded signals to the sounders by pulsing the
power supply on and off in specific patterns such as the temporal 3 evacuation
signal. The directional sounders should not be connected to 4-wire sounder
circuit power supplies where coded signals are used to pulse the sounders. Di­rectional sounders may be used in conjunction with sync modules such as the
System Sensor MDL3, MDL3A or synchronizable power supplies. The sounder
is compatible with synchronizable power supplies using any of the following
synchronization protocols; System Sensor, Wheelock, Gentex, and Faraday.

Note: In an effort to minimize interference of tones it is highly recommended
that you do not place horn and/or horn strobe devices in close proximity
of the directional sounder. In addition, it is recommended that if you have
a voice evacuation system, you alternate the directional sounders and your
voice messages.
All wiring must be installed in compliance with the National Electrical Code
(NEC), Canadian Electrical Code and applicable local codes as well as special
requirements of the authority having jurisdiction.

DIP Switch
Position 2

Setting

off off off High

on off off Med-High

off on off Med

off off on Med-Low

on on on Low

Rotary Switch Selection Tone/Language

0 Audible tone/sweep

1 English

2 Spanish

3 French

4 English/Spanish

5 English/French

6 Korean

7 Cantonese

8 Mandarin

9 English/Cantonese

10 English/Mandarin

11 Cantonese/Mandarin

12 English/Korean

13 English/Portuguese

14 English/Russian

15 English/Polish

DIP Switch
Position 3

Setting

Power

Setting

D690-06-00 2 I56-2961-001R