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Fire Alarm Systems | D323A Analog Photoelectric Smoke Detector Head
D323A Analog Photoelectric Smoke Detector Head www.boschsecurity.com
The D323A Analog Photoelectric Smoke Detector Head is (FACPs). The D323A detects dense smoke typically given off by plastic, foam, paper, wood, and other materials that tend to smolder. It can detect fast‑flaming fires. It uses an LED and photodiode to measure particulate levels in its detection chamber. These measurements are transmitted in digital form to the control panel. The system allows for adjusting sensitivity levels by the detector over a range of 0.05% to 4.0% obscuration. Sensitivity levels for specific detectors can be modified on a daily schedule. The D323A has two LEDs that flash every time the device is polled, and latch on red when the device goes into alarm. The unique detection chamber design prevents external light from affecting the photodiode. Functions Control Panel Connection The D323A has an eight‑bit microprocessor and communicates with the control panel (both power and data) over a two‑wire polling circuit. Each polling circuit can support up to 126 analog devices. The circuit can be configured as either a Class A or a
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Addressable analog photoelectric smoke detector head that mounts on D321A or D336A Analog Detector Base
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Advanced digital communications protocol
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Digital data communications and power provided over two-wire circuit
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Easy head removal for cleaning and servicing
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Dual Polling Status and Latching Alarm LEDs on head for easy viewing
Class B polling circuit. Removing the D323A head from the base for service initiates a trouble signal but does not interrupt the polling circuit. Contamination Testing FACP Polling: The D8024 and D10024A FACPs are UL Listed to monitor the contamination level of the D323A. The FACP monitors the test condition (level of contamination) of the detector as part of its normal polling activity. This electrical test determines if the device is within its UL Listed calibration range. The control panel automatically compensates for contamination of the detector and indicates when the device requires cleaning. Manual: The detector can also be tested using the Bosch Security Systems' D1000 Smoke Test Box, a UL Listed calibrated testing device. Depending on the amount of particulates, the rate of change, and the established standard, the control panel can initiate an alarm or trouble condition. Certifications and approvals USA
NFPA
Complies with National Fire Protection Association NFPA 72
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Region
Certification
Technical specifications
USA
UL
UROX_S4992 - Smoke-Automatic Fire Detectors
Environmental Considerations
CSFM
7272-1615-0156
NYCMEA HKFSD
Hong Kong
Relative Humidity:
95% maximum, non‑condensing at +104°F (+40°C)
26-02-e,_vol-3
Temperature (Operating):
+32°F to +120°F (0°C to +49°C)
HKFSD D323A D324A
Mechanical Properties
Installation/configuration notes Compatible Products The following products are compatible with the D323A Analog Smoke Detector Head:
Color:
Ivory
Dimensions (diameter x D):
4 in. x 1.5 in. (10 cm x 3.8 cm)
Material:
Acrylonitrile‑chlorinated polyethylene‑styrene terpolymer (ACS) plastic
Weight:
3.2 oz (91 g)
Category
Product ID
Product Description
Control Panels
D8024
Analog FACP
D10024A
Analog FACP
D321A
Analog detector base
Current (Alarm):
8 mA
D336A
Analog detector base
Current (Polling):
0.022 mA ± 20%
Modules
D9067
Polling circuit module
Current (Standby):
0.39 mA
Programming Products
D5070
Analog device programmer
Voltage (Operating):
24 VDC nominal; 17 VDC to 41 VDC range
Detector Bases
Modular Construction The D323A is part of a two‑piece modular design photoelectric smoke detector assembly. Attach the D323A to a D321A Analog Detector Base (6 in. [15 cm]) or a D336A Analog Detector Base (4 in. [10 cm]) by inserting the detector head into a groove on the base and turning the head clockwise. The base’s security locking tab prevents any unauthorized head removal from the base. Mounting Smoke detectors are typically mounted on the ceiling. However, if smoke detectors are mounted on a wall, they must be at least 4 in. (10 cm), but no more than 12 in. (30.5 cm), below the ceiling. For UL Listing requirements, the spacing between detectors should be no more than 30 ft (9 m). Programming The D323A’s address is set by programming an EEPROM microchip located in the detector head. The D5070 Analog Device Programmer is required for address setting. Parts included Quant.
Component
1
Detector head
1
Dust cover
Power Requirements
Ordering information D323A Analog Photoelectric Smoke Detector Head
An addressable device used in the analog polling circuit of the Bosch Security Systems' D8024 and D10024A Fire Alarm Control Panels Order number D323A
3 | D323A Analog Photoelectric Smoke Detector Head
Represented by: Americas: Bosch Security Systems, Inc. 130 Perinton Parkway Fairport, New York, 14450, USA Phone: +1 800 289 0096 Fax: +1 585 223 9180
[email protected] www.boschsecurity.us
Europe, Middle East, Africa: Bosch Security Systems B.V. P.O. Box 80002 5617 BA Eindhoven, The Netherlands Phone: + 31 40 2577 284 Fax: +31 40 2577 330
[email protected] www.boschsecurity.com
© Bosch Security Systems 2014 | Data subject to change without notice 2699837195 | en, V3, 02. Jul 2014
Asia-Pacific: Robert Bosch (SEA) Pte Ltd, Security Systems 11 Bishan Street 21 Singapore 573943 Phone: +65 6571 2808 Fax: +65 6571 2699
[email protected] www.boschsecurity.asia
China: America Latina: Bosch (Shanghai) Security Systems Ltd. Robert Bosch Ltda Security Systems Division 201 Building, No. 333 Fuquan Road Via Anhanguera, Km 98 North IBP CEP 13065-900 Changning District, Shanghai Campinas, Sao Paulo, Brazil 200335 China Phone: +55 19 2103 2860 Phone +86 21 22181111 Fax: +55 19 2103 2862 Fax: +86 21 22182398
[email protected] www.boschsecurity.com.cn www.boschsecurity.com
