Bosch D282A-DH Specsheet

Fire Alarm Systems | D282A DH Replacement Duct Smoke Detector Head (24 VDC)

D282A DH Replacement Duct Smoke

Detector Head (24 VDC)

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The D282A DH Replacement Duct Smoke Detector Head detects the large smoke particles which typically result from wood, paper, and fabric combustion. It is a conventional 24 VDC photoelectric smoke detector head for use with the D300A and D300A HV conventional duct detector housing units.

It uses an infrared (IR) LED light source and a silicon photo diode to measure light reflected from particulates in a detection chamber. After two consecutive measurements exceeding the threshold level, the unit signals an alarm condition. The detection chamber, designed for reliable smoke entry characteristics, is protected by a micro-fine insect screen to minimize nuisance alarms.

The sensitivity stability and high signal to noise ratio of this detector permits its use in a wide range of environmental conditions. The detector head has a moisture proof reed switch that reacts to an external magnet for testing. The magnet test simulates a 4% to 6% smoke obscuration, which places the detector in an alarm condition. This test is especially useful in environmentally unstable or clean areas.

There are built in LEDs that flash to indicate the unit is powered. The LEDs latch on steady in an alarm condition.

u24 VDC replacement detector head for D300A and D300A HV Conventional Duct Detector Housings

uEasy head removal for cleaning and servicing

uFlashing LED power on indicator

Certifications and approvals

Region	Certification
USA	UL	UROX: Smoke - Automatic Fire Detectors
		(UL268 and A)
	CSFM	see our website
Hong Kong	HKFSD	J-005/C/026

Installation/configuration notes

Compatible Products

The following products are compatible with the D282A DH Replacement Duct Smoke Detector Head:

Category	Product ID	Product Description
Control Panels	D7022	Two zone FACP
	D7024	Conventional FACPs
	D7024 EX	Conventional FACPs for export
	P
Detector	D300A	Duct smoke detector with housing
Housings
	D300A HV	High voltage duct smoke detector
		with housing

2 | D282A DH Replacement Duct Smoke Detector Head (24 VDC)

Installation

The D282A DH installs quickly and easily into the D300A and D300A HV. Remove the four screws that hold the housing unit's cover in place, twist the existing detector head counter clockwise to remove it, insert the replacement head, turn it clockwise, replace the housing unit's cover and tighten the screws.

Parts included

Quant. Component

1D282A DH repalcement detector head

1Literature pack

Technical specifications

Environmental Considerations

Relative Humidity:		10% to 85% non condensing
Temperature (operating):		+32°F to +120°F (0°C to +49°C)
Mechanical Properties
Color:		Bone white
Dimensions (diameter):		4 in. (10.2 cm)
Power Requirements
Current
Alarm:	Depends on housing; refer to the D300A or D300A HV
	specifications
Standby:	0.045 mA
Surge:	0.16 mA
Voltage
Operating:	15.0 VDC to 33.0 VDC

Ordering information

D282A DH Replacement Duct Smoke Detector Head (24 VDC)

Detects the large smoke particles which typically result from wood, paper, and fabric combustion

Order number D282A-DH

Represented by:
Americas:	Europe, Middle East, Africa:	Asia-Pacific:	China:	America Latina:
Bosch Security Systems, Inc.	Bosch Security Systems B.V.	Robert Bosch (SEA) Pte Ltd, Security	Bosch (Shanghai) Security Systems Ltd.	Robert Bosch Ltda Security Systems Division
130 Perinton Parkway	P.O. Box 80002	Systems	201 Building, No. 333 Fuquan Road	Via Anhanguera, Km 98
Fairport, New York, 14450, USA	5617 BA Eindhoven, The Netherlands	11 Bishan Street 21	North IBP	CEP 13065-900
Phone: [phone]	Phone: + 31 40 2577 284	Singapore 573943	Changning District, Shanghai	Campinas, Sao Paulo, Brazil
Fax: [phone]	Fax: [phone]	Phone: [phone]	200335 China	Phone: [phone]
[e-mail]	[e-mail]	Fax: [phone]	Phone [phone]	Fax: [phone]
www.boschsecurity.us	www.boschsecurity.com	[e-mail]	Fax: [phone]	[e-mail]
		www.boschsecurity.asia	www.boschsecurity.com.cn	www.boschsecurity.com

© Bosch Security Systems 2014 | Data subject to change without notice 2702251147 | en, V2, 04. Aug 2014