GE Security 429AT, 429C, 429CRT, 429CT Specsheet
E S L
P R O D U C T I N F O R M A T I O N B U L L E T I N
429 SERIES
Self-Diagnostic,
Two-Wire,
Photoelectric
Smoke Detectors
Model numbers: 429AT, 429C, 429CT,
429CRT and 429CST
D
E
T
B
S
Y
I
L
U
A
N
D
D
A
E
N
R
A
W
C
R
F
I
T
O
E
R
S
S
E
I
L
R
A
O
B
T
O
A
R
California State Fire Marshal Approved
MEA (New York City)
• Intelligent, self-diagnostics
• Field replaceable optical chamber
• Low-profile design
• Plug-in terminal block
• Advanced false alarm immunity
The ESL 429 Series self-diagnostic, two-wire
smoke detectors continually monitor their own sensi-
tivity and operational status, and provide a visual
trouble indication if they drift out of sensitivity range or
fail internal diagnostics. This meets NFPA 72 field
sensitivity testing requirements without the need for
external meters.
Additional diagnostic information is activated by
applying a magnet near the detector's integral reed
switch. This initiates a self-diagnostic routine and
provides visual indication of sensitivity level, or if
service is required.
The 429 Series is easily cleaned by simply replacing
ESL's proprietary field-replaceable optical chamber. All
models are designed to reduce false alarms from dust,
insects, RFI and external light.
An integral combination rate-of-rise and fixed 135°F
(57°C), 50-foot rated, heat sensor is available with all
“T” model detectors (see selection guide). An integrated silicon heat sensor and a dedicated microprocessor are used to detect heat and perform the rate of
rise calculations, for earlier heat detection.
continued
ESL 429 Series Smoke Detectors
Architectural and Engineering Specifications
The ESL 429 Series low-profile, self-diagnostic, two-wire
smoke detectors work on the light scattering principle. A
pulsed infrared light-emitting diode serves as the light source,
and a high-speed photo-diode as the sensing element. When
the amount of light reflected onto the photodiode reaches the
sensitivity setting, the smoke sampling rate increases. Three
(3) successive smoke sensings above the sensitivity setting
are required to sound an alarm. This design has superior
protection against false alarms caused by dust, insects, RF
and ambient-light.
A confirmed alarm causes the normally flashing power
indicator LED to light continuously and the optional alarm
relay (available in “R” models) to operate. A trouble indication is automatically displayed by flashing the LED every
second. This meets NFPA 72 field sensitivity testing requirements. An internal 85 dB horn (available in “S” models) emits
a steady tone when the detector alarms and a pulsed tone
when power polarity is reversed.
Product Data
Sensitivity ..........................................max ....... 3.1 - 1.0%/ft.
min ..... 3.1 + 0.50%/ft.
Operating temperature range......................... 32°F to 120°F
0°C to 50°C
Operating humidity range................................. 0 to 95% RH
Minimum voltage - C, CT, CRT, CST............................ 8.5V
- AT .................................................... 6.5V
Maximum voltage - C, CT, CRT, CST........................... 33V
- AT ..................................................... 20V
Maximum ripple (peak to peak)...................................... 10%
Typical average standby current .................................. 70µA
Field wiring size................................................ 14 - 24 AWG
Alarm current..... draws max of 60 mA if not limited by panel
The proprietary optical sensing chamber is field replaceable,
allowing quick and easy cleaning and maintenance.
Models with auxiliary relays are approved for releasing
service.
The very low profile 429 Series detectors are equipped with a
hinged cover, a concealed tamper-resistant latch, and insect
screens.
All wiring terminates in plug-in, clamp-type screw terminals.
The detectors mount to a standard single-gang electrical box,
a four-inch octagonal, four-inch square electrical box, or
WIREMOLD No. 5739 fixture box.
Smoke Detector Spacing
On smooth ceilings (as defined in NFPA 72), spacing of 30
feet (9.1 meters) may be used as a guide. Other spacing
may be used depending on ceiling height, high air movement,
and other conditions or response requirements.
Max. avg. polarity reverse current - CST .................... 10mA
Sounder specifications .................................... 85dB at 10 ft.
Heat detector specifications
fixed temp. ........................... 135°F ± 5°F (57.2°C ± 2.8°C)
rate of rise..... 15°F/min. & > 105°F (8.3°C/min. & > 40.6°C)
Relay specifications ................. 2A @ 28 V DC or 120 V AC
Packaging .................... 10 detectors are packed in a carton
Color................................................. white cover/white base
with UV inhibitor to prevent yellowing
2-wire compatibility.................. see ESL Compatibility Index
Listings ........ UL 268, FM, CSFM and MEA (New York City)
for Canadian ULC listed products use 428 series
Selection Guide
Designator Feature Description
H
R Auxiliary Relay
S Built-in Sounder 85db built-in sounder alarms when smoke is detected or when power wiring polarity is reversed.
T
Isolated Fixed Temp.
and Rate of Rise Heat
Detector
Integrated Fixed
Temp. and Rate of
Rise Heat Detector
ESL
Isolated fixed 135°F (57°C) and rate of rise heat detector, independently trips the LED and alarm
relay output. Smoke detector activates internal sounder (local alarm) and auxiliary relay, but
does not latch. Approved as both single station smoke alarm and system heat detector. Ideal for
hotel, motel and dormitory rooms where smoking is allowed.
Used to activate other devices such as elevator recall, door holders, strobes, etc. Listed for
releasing service.
Integrated fixed 135°F (57°C) temperature and rate of rise heat detector offers double protection.
Either heat detector or smoke detector can trip and latch LED and alarm relay outputs.
SENTROL
12345 SW Leveton Dr., Tualatin, OR 97062
Tel.: 503.692.4052 Fax: 503.691.7566
http://www.sentrol.com
Sentrol reserves the right
to change specifications
U.S. & Canada: 800.547.2556
Technical Service: 800.648.7424
a product of sentrol
FaxBack: 1.800.483.2495
without notice.
©2000 Sentrol
E-4079-ST2k-1000
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