System Sensor APA451 Installation And Maintenance Instructions

System Sensor APA451 Installation And Maintenance Instructions

Annunciator with piezo alert

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Installation AND MAINTENANCE INSTRUCTIONS
APA451 Annunciator with
Piezo Alert

Specifications

Dimensions:
Weight:
Electrical Requirements:
Voltage:
Operational Voltage:
Maximum Operating Current:
Connections:
UL Reverberant Room:
Temperature:
Humidity:
NOTICE: These models were only tested at the 16-33 Volt
DC limits. This does not include the 80% low-end or 110%
high-end voltage limits. This manual shall be left with the
owner/user of this equipment.

General Information

The National Fire Protection Association (NFPA) has pub-
lished codes, standards, and recommended practices for the
installation and use of this product. It is recommended that
the installer be familiar with these requirements, with local
codes, and any special requirements of the local authority
having jurisdiction. For further information, consult NFPA
72 and 90A requirements.
The System Sensor APA451 annunciator with piezo alert
is an audible signal appliance for fire alarm service. It is
intended for use in System Sensor 4-wire conventional duct
smoke detector applications without a system control panel
to comply with NFPA 90A.
The APA451 provides a red alarm LED, with an audible
annunciation of an alarm signal, and a green power LED.
D440-00-00
4.6" H × 2.75" W × 1.5" D
.17 lbs.
Regulated 24VDC
16–33VDC
30mA
#6 binding head screws,
14 AWG to 18 AWG wire
81 dBA min. @ 10 ft.
–10°C to 38°C (14°F to 100°F)
5% to 95% Relative Humidity
Figure 1:
1
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
ALARM
POWER
H0315-00
I56-468-05

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Summary of Contents for System Sensor APA451

  • Page 1 System Sensor 4-wire conventional duct smoke detector applications without a system control panel H0315-00 to comply with NFPA 90A. The APA451 provides a red alarm LED, with an audible annunciation of an alarm signal, and a green power LED. D440-00-00 I56-468-05...
  • Page 2: Operational Test

    Three-Year Limited Warranty System Sensor warrants its enclosed remote test station to be free from defects in materials and workmanship under normal use and service for a period of three years from date of manufacture. System Sensor makes no other express warranty for this remote test station. No agent, representative, dealer, or employee of the Company has the authority to increase or alter the obligations or limitations of this Warranty.

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