System Sensor P2R User Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS

3825 Ohio Avenue, St. Charles, Illinois 60174

800/736-7672, FAX: [phone]

Selectable Output Strobes, Horns, and Horn/Strobes

For use with the following models: P2R, P2RH, P2RK, P2RHK, P2W, P2WH, P4R, P4RH, P4RK, P4RHK, P4W, P4WH, SR, SRH, SRK, SRHK, SW, SWH, PC2R, PC2RH,
PC2RK, PC2RHK, PC2W, PC2WH, PC4R, PC4RH, PC4RK, PC4RHK, PC4W, PC4WH, SCR, SCRH, SCRK, SCRHK, SCW, SCWH, HR, HRK, HW, SR-P, SW-P, SRH-P, SWH-P,
P2R-P, P2W-P, P2RH-P, P2WH-P, SCR-P, SCW-P, SCRH-P, SCWH-P, PC2R-P, PC2W-P, PC2RH-P, PC2WH-P, P4R-P, P4RH-P, P4W-P, P4WH-P, SR-SP, SRH-SP, P2R-SP, P2RH-SP,
SCW-SP, SCWH-SP, PC2W-SP, PC2WH-SP

www.systemsensor.com

Specifications

General Specifications

Standard Operating Temperature: 32°F to 120°F (0°C to 49°C)
K Series Operating Temperature: –40°F to 151°F (FM approved to –31°F); See note for Table 2.
Humidity Range: 10 to 93% non-condensing (indoor products)
Strobe Flash Rate: 1 flash per second
Nominal Voltage: Regulated 12DC/FWR or regulated 24DC/FWR
Operating Voltage Range: 8 to 17.5 V (12V nominal) or 16 to 33 V (24 nominal)
Operating Voltage with MDL: 9 to 17.5 V (12V nominal) or 17 to 33 V (24 V nominal)

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P, S, PC, & SC products will operate at 12 V nominal only for 15 & 15/75 cd.

Mechanical Specifications

Input terminal wire gauge: 12 to 18 AWG
Ceiling mount dimensions (including lens): 6.8˝ diameter×2.5˝ high (173 mm diameter×64 mm high)
Wall mount dimensions (including lens): 5.6˝L×4.7˝W×2.5˝D (142 mm L×119 mm W×64 mm D)
Horn dimensions: 5.6˝L×4.7˝W×1.3˝D (142 mm L×119 mm W×33 mm D)

The products in this manual may be covered by one or more of the following patents:
5,914,665; 5,850,178; 5,598,139; 6,049,446; 6,522,261; 6,661,337; 6,822,400; 6,833,783; 6,856,241.

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I56-2769-003R

General Description

The SpectrAlert Advance series of notification appliances
offers a comprehensive range of red and white wall, ceiling,
and outdoor products including horns, strobes, and horn/
strobes. These products are electrically backward compat­ible with the previous generation of notification appliances.
While there are products specifically designed for use on
the ceiling or the wall, the products are listed to be used
in either application, i.e., wall products could be used on
the ceiling. SpectrAlert products are designed to be used
in either 12 or 24 volt DC or full wave rectified (FWR) sys­tems. If required, the MDL module may be used in order to
provide synchronization.

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

Fire Alarm System Considerations

The National Fire Alarm Code, NFPA 72, requires that all
horns, used for building evacuation installed after July 1,
1996, produce temporal coded signals. Signals other than
those used for evacuation purposes do not have to produce
the temporal coded signal.

Power Supply Considerations

Panels typically supply DC filtered voltage or FWR (full
wave rectified) voltage. The system design engineer must
calculate the number of units used on a loop based on the
type of panel supply. Be certain the sum of all the device
currents does not exceed the current capability of the panel.

D690-03-00 1 I56-2769-003R

Calculations are based on using the device current found
in the subsequent charts and must be compatible with the
current specified for the panel or power supply used.

Wire Sizes

The designer must be sure that the last device on the circuit
has sufficient voltage to operate the device within its rated
voltage. 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 smaller
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
to simulate worst case. For the most accurate voltage drop
calculations use the System Sensor voltage drop calculator
available on the web or CD-ROM.

Approximate wire resistance:

18 AWG solid: 8 ohms/1000 ft.
16 AWG solid: 5 ohms/1000 ft.
14 AWG solid: 3 ohms/1000 ft.
12 AWG solid: 2 ohms/1000 ft.

NOTE: If Class A wiring is installed, the wire length may be
up to twice as long as on non-fault tolerant circuits.

NOTE: For 24 volt applications, the total number of strobes
on a single NAC must not exceed 40, with a maximum loop
resistance of 120 ohms. For 12 volt applications, the total
number of strobes must not exceed 12, with a maximum
loop resistance of 30 ohms.

Candela Selection for P, S, PC, & SC series models

For strobe candela selection, adjust the slide switch located
on the rear of the product while watching the viewing win­dow under the reflector on the front of the unit. Use Table
1 to determine current draw at various candela settings.
Table 2 can be used to derate the candela rating for low
temperature operation. Tables 3 & 4 can be used to deter­mine strobe light output at various viewing angles.

NOTE: SpectrAlert products set at 15 and 15/75 candela au­tomatically work on either 12V or 24V power supplies. The
products are not listed for 12V operating voltages when set
to any other candela settings.

Table 1. Current Draw (mA)

8–17.5 Volts 16–33 Volts

Strobe
(Standard
Candela
Range)

Strobe
(High
Candela
Range)

Candela

15 123 128 66 71
15/75 142 148 77 81
30 NA NA 94 96
75 NA NA 158 153
95 NA NA 181 176
110 NA NA 202 195
115 NA NA 210 205
135 NA NA 228 207
150 NA NA 246 220
177 NA NA 281 251
185 NA NA 286 258

DC FWR DC FWR

Table 2.

Listed candela rating Candela rating at –40°F

15 cd
15/75 cd
30 cd
75 cd 9.8
95 cd 16.2
110 cd 29.7
115 cd 41.4
135 cd 44.6
150 cd 49.5
177 cd 81.4
185 cd 72.2

See Note

NOTE: The 15, 15/75, and 30 cd settings are not intended
for use at temperatures below 32°F.

Horn Selection for P, PC, & H series models

Horn setting selection is accomplished by using the rotary
switch on the back of the product (see Table 5). The current
draw for various horn settings for horn and 4-wire horn/
strobe products is listed in Table 6. The current draw for
various horn and candela settings for 2-wire horn/strobe
products (P2 series) is shown in Table 7 & 8. The sound
measurements for various horn settings are shown in Table
9 for horn and horn/strobe products.

Table 5. Horn Patterns

Setting Repetition Rate dB Out

1 Temporal horn High
2 Temporal horn Medium
3 Temporal horn Low
4 Normal horn High
5 Normal horn Medium
6 Normal horn Low
7 Externally coded High
8 Externally coded Medium
9 Externally coded Low

NOTE: In positions 7, 8, and 9, temporal coding must be
provided by the NAC. If the NAC voltage is held constant,
the horn output will remain constantly on. Positions 7, 8,
and 9 are not available on 2-wire horn/strobe products.

Table 6. Horn Current Draw (mA)

8–17.5 Volts 16–33 Volts

Sound Pattern dB

Temporal High 57 55 69 75
Temporal Medium 44 49 58 69
Temporal Low 38 44 44 48
Non-temporal High 57 56 69 75
Non-temporal Medium 42 50 60 69
Non-temporal Low 41 44 50 50
Coded High 57 55 69 75
Coded Medium 44 51 56 69
Coded Low 40 46 52 50

DC FWR DC FWR

NOTE: Ceiling products have their maximum brightness on
the two axes shown below.

Table 3. Horizontal Plane Light Distribution for
Wall and Ceiling Applications

Horizontal Angle % of rated light output

0 100
45 75
90 25

Table 4. Vertical Plane Light Distribution
for Wall Applications

Vertical Angle % of rated light output

0 100
45 34
90 12

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