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MODEL SL-2000
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DUCT SMOKE DETECTOR
Early Smoke Detection in HVAC Systems
AIR QUALITY
The Model SL-2000 Duct Smoke Detector is crucial for early detection of smoke and
products of combustion present within HVAC ductwork. This model can be utilized in
many different types of applications including commercial, industrial, and residential.
The unit is designed to not only alarm when smoke is detected, but will also utilize
relays to disable fans and blowers. The model comes complete with technician friendly
“No-Tools Required” features to make installation and servicing simple and efcient.
BENEFITS/FEATURES
• Versatile installation applications with velocities up to 4000 FPM
• Easy performance verication with the built-in smoke and magnet test ports and
clear cover to view status LED
• Simple installation with no tools required to load/remove sampling tubes
APPLICATIONS
• Early smoke detection in ductwork
• Commercial/industrial/residential HVAC
• BAS automation
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SPECIFICATIONS
Sensor Type: Photoelectric or Ionization.
Air Velocity Range: 100 to 4000 FPM.
Ambient Temperature: SL-2000-P: 32 to 140°F (0 to 60°C).
Humidity Limits: 10-85% RH. Non-condensing/non-freezing.
Power Requirements: Standby: 230 VAC (12 mA), 115 VAC (22 mA), 24 VAC
(55 mA), or 24 VDC (14 mA); Alarm: 230 VAC (18 mA), 115 VAC (32 mA), 24 VAC
(190 mA), or 24 VDC (68 mA).
Electrical Rating: Alarm contacts: 2 sets form “C” rated at 10 A resistive @ 115
VAC and 1 set form “A” rated at 2 A; Trouble contacts: 1 set form “C” rated at 10 A
@ 115 VAC.
Electrical Connections: Screw terminals.
Enclosure: Grey plastic backbox, clear plastic cover (Makrolon
Enclosure Rating: SL-2000: NEMA 1; WP-2000: NEMA 3R.
Weight: 2.5 lb.
Approvals: cULus (UL 268A) le # S2829, CSFM listed (3240-1004:105), MEA
accepted (73-92-E; VOL. 27).
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Smoke Detectors
MODEL CHART
Model Description
SL-2000-P Conventional, 4-wire, universal voltage, photoelectric duct smoke detector
ACCESSORIES
Model Description
55000-328APO
FAST TUBE
TG-2500
WP-2000
Photoelectric replacement sensor for SL-2000-P
Sectional, polycarbonate sampling tube, bag of (3) 24˝ tubes
Test gas for SL-2000 models
Weatherproof enclosure for SL-2000 models
Makrolon® is a registered trademark of COVESTRO INTELLECTUAL PROPERTY GMBH & CO.
DWYER INSTRUMENTS, LLC | dwyer-inst.com
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