Bosch D7050DH Specsheet

Fire Alarm Systems | D7050DH Addressable Photoelectric Duct Smoke Detector Head

D7050DH Addressable Photoelectric Duct
Smoke Detector Head

www.boschsecurity.com

u Connects to the two-wire multiplex bus of the

FPD-7024 and D7024 Addressable FACPs

The D7050DH is designed for use with the D343 Duct
Smoke Detector Housing.
The detector is a UL Listed, duct photoelectric smoke
detector designed for use with commercial fire
protective signaling systems and household fire
warning systems (see NFPA 72, the National Fire Alarm
Code). It is compatible with the FPD-7024 and D7024
Addressable Fire Alarm Control Panels (FACPs).
It detects large smoke particles in air ducts by
scattering light from a pulsed infrared source
operating with a gated, high-speed, photodiode
infrared sensor. The symmetry of the optical chamber
allows 360° uniform smoke entry, but minimizes
external light entry.

Functions

Detector Head and Housing System

The detector head is part of a compound system of
detector head and housing. The detector housing
installs on the duct and contains all the wiring. The
detector head attaches to the housing by aligning the
head with the housing and turning it clockwise. No

u Superior dust immunity

u Exclusive Chamber Check self-diagnostics

u Automatic sensitivity test features

u Easy disassembly for cleaning

tools are required for installation other than the hex
key used to tighten the tamper screw. Each detector
head requires a D343 detector housing.

Chamber Check Selfdiagnostics

The detector meets NFPA guidelines for sensitivity
testing, because you can visually inspect the detector
and check the flash rate of the LED. If the calibration
is out of factory-listed range, the LED on the detector
double flashes once every 3 sec to 8 sec. Follow the
instructions provided with the detector to clean it.

LED Operation

When the detector operates normally, the LED flashes
once every 3 sec to 8 sec. In alarm, the detector
flashes at least once per second.

Magnetic Test Feature

Test the detector's operation by placing the SMK-TM
Test Magnet next to the detector's LED for three
consecutive flashes. This causes the detector to send
an alarm.

2 | D7050DH Addressable Photoelectric Duct Smoke Detector Head

Certifications and approvals

Region Certification

USA UL UROX: Smoke - Automatic Fire Detectors

CSFM see our website

Hong Kong HKFSD

(UL268 and A), UROX7: Smoke - Auto­matic Fire Detectors Certified for Cana­da (cULus)

Installation/configuration notes

Compatible Products

The following products are compatible with the
D7050DH Duct Smoke Detector:

Category Product ID Product Description

Control
Panels

D7024-EXP FACP for export

Detector
Bases

Remote
Annunciator
s

D7024 FACP

D343 Duct detector housing

DRA-5 5 VDC remote annunciator

Parts included

Power Requirements

Current
(alarm and standby):

Power-up Time: 22 sec maximum

Voltage (minimum): 8 VDC peak from the multiplex bus

Refer to the D343 Installation
Instructions (P/N: 48199)

Ordering information

D7050DH Addressable Photoelectric Duct Smoke Detec­tor Head

Designed for use with the D343 Duct Smoke Detector
Housin

Order number D7050DH

Accessories

DRA‑5 Remote Annunciator (5 VDC)

Designed to provide remote annunciation of alarms for
a number of Bosch smoke and heat detectors

Order number DRA-5

DT‑2 Detector Removal Tool

Use the DT‑2 to remove, replace, or test the detector
head

Order number DT-2

SMK‑TM Test Magnet

Used to test detectors

Order number SMK-TM

Quan
tity

1 Detector head

1 Lit pack – Installation Manual, Technical Service Note on

Component

installation

Technical specifications

Environmental Considerations

Radio Frequency
Interference (RFI)
Immunity:

Temperature
(normal operating):

Note: The environment where these detectors are installed must be
within the specified normal operating temperature limits.

No alarm or setup on critical frequencies in
the range of 26 MHz to 950 MHz at 50 V/m

+32°F to +100°F (0°C to +38°C)

Mechanical Properties

Color: Off-white

Dimensions
(diameter x D):

Material: High-impact, fire-retardant ABS plastic

4 in. x 1.3 in. (10.2 cm x 3.3 cm)

3 | D7050DH Addressable Photoelectric Duct Smoke Detector Head

Represented by:

Americas: Europe, Middle East, Africa: Asia-Pacific: China: America Latina:

Bosch Security Systems, Inc.
130 Perinton Parkway
Fairport, New York, 14450, USA
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.us

Bosch Security Systems B.V.
P.O. Box 80002
5617 BA Eindhoven, The Netherlands
Phone: + 31 40 2577 284
Fax: [phone]
[e-mail]
www.boschsecurity.com

Robert Bosch (SEA) Pte Ltd, Security
Systems
11 Bishan Street 21
Singapore 573943
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.asia

Bosch (Shanghai) Security Systems Ltd.
201 Building, No. 333 Fuquan Road
North IBP
Changning District, Shanghai
200335 China
Phone [phone]
Fax: [phone]
www.boschsecurity.com.cn

Robert Bosch Ltda Security Systems Division
Via Anhanguera, Km 98
CEP 13065-900
Campinas, Sao Paulo, Brazil
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.com

© Bosch Security Systems 2014 | Data subject to change without notice
2700342411 | en, V2, 31. Jul 2014