TM
KELE • www.kele.com • FAX 800-284-5353
USA 888-397-5353 • International 901-382-6084
DUCT SMOKE DETECTOR
SL-2000 SERIES
DESCRIPTION
The SL-2000 Series Duct Smoke Detectors provide
early detection of smoke and combustion products pre-
sent in air moving through HVAC ducts. Air sampling is
accomplished by intake sampling tubes, which are
ordered separately. A standard length exhaust tube is
provided with each detector. These devices are designed
to prevent the recirculation of smoke in areas by the air
handling systems, fans, and blowers. Complete systems
may be shut down in the event of smoke detection.
OPERATION
The SL-2000 Series is designed to operate in duct
widths from 12.0" to 10.0' (30.5 cm to 3.05m) with an air
velocity from 100-4000 fpm (0.5-20.3 mps). The
SL-2000 Series will operate on any one of four input
voltages: 24 VAC, 24 VDC, 115 VAC, or 230 VAC. It
uses either a photoelectric or ionization smoke detector
head. Each detector contains two Form C and one Form
A alarm contact, which transfer in the event of smoke.
There is also one trouble contact, which supervises the
presence of input power and removal of the detector
head. A manual test/reset switch and visual indicators of
pilot and alarm are provided on the front of the detector.
Up to 30 SL-2000 Series units may be wired to use a
common test/reset function and to alarm simultaneously
when a single unit alarms.
Power requirements
50/60 Hz (without
accessories)
24 VAC @ 55 mA standby,
190 mA alarm
24 VDC @ 15 mA standby,
70 mA alarm
115 VAC @ 16 mA standby,
32 mA alarm
230 VAC @ 10 mA standby,
20 mA alarm
Relay contact rating
Alarm (2)
SPDT, 10A, 115 VAC, resistive
Alarm (1)
SPST-NO, 2A, 115 VAC,
resistive
Trouble (1)
SPDT, 10A, 115 VAC, resistive
Radioactive element
For SL-2000-N only
Americium 241, 0.9 µCi
Air velocity
100-4000 fpm (0.5-20.3 mps)
Approvals
UL
268A; UROX.S2829
CSFM
3240-1004:105
MEA
73-92-E, Vol. 27
Ambient temp
SL-2000-N
32° to 155°F (0° to 68°C)
SL-2000-P
32° to 100°F (0° to 38°C)
Humidity
10% to 85% RH noncondensing
Material
Gray plastic back box,
clear plastic cover
Weight
2.5 lb (1.13 kg)
Mounting
7" (17.8 cm) exhaust tube, sampling
tube end cap, mounting template
and hardware supplied
Dimensions
13.5"L x 4.5"H x 2.25"D
(34.3 x 11.4 x 5.7 cm)
FEATURES
• Low flow technology, 100-4000 fpm
• Universal voltage: 24 VAC, 24 VDC, 115 VAC, or
230 VAC
• Two Form C and one Form A alarm contacts and
one trouble contact
• Interchangeable "plug-in" photoelectric or ioniza-
tion heads
• Compatible with building automation and fire
alarm systems
• Dust filtering included in detector head
• Interconnect up to 30 detectors for common
functions
• Compatible with MS Series Remote Accessories
• Cover removal trouble indication
• Magnet test capability
• Front or rear loading sampling tubes
• Optional weatherproof enclosure
SPECIFICATIONS
SL-2000
April 2004
