SL-2000 Series Duct Smoke Detectors

The SL-2000 Series Conventional Duct Detector is the latest innovation for early detection of smoke and products of combustion present in air moving through HVAC ducts in Commercial, Industrial, and Residential applications. The unit is designed to prevent the recirculation or spread of smoke by air handling systems, fans and blowers. Complete systems may be shut down in the event of smoke detection.

The SL-2000 is designed and built to meet all local code requirements, as well as the NFPA and ICC standards regarding HVAC supply and return duct smoke detectors. Output terminals are provided for a wide range of remote accessories such as horns, strobes, remote status indicators, and test/reset key switches or push buttons.

  • Ionization and Photoelectric versions available
  • Low-Flow Technology: Both Ionization and Photoelectric models listed for velocities between 100-4000 ft./min
  • Both models listed for high-temperature applications
  • Operating voltages: 230VAC, 115VAC, 24VAC, 24VDC
  • Interconnect up to 30 units for common functions
  • Patent pending "No-Tools Required" front or rear loading and removing sampling/exhaust tubes
  • Patent pending "Test Port Valve" allows for aerosol smoke testing without cover removal
  • Magnet test capability (magnet included)
  • More wiring space than competitive models
  • Compatible with the WP-2000 weatherproof enclosure
  • Reset switch is also an alarm test switch - competitive models require a magnet or cover removal to test at unit
  • UL, CUL, CSFM, and MEA Listed
  • Two sets of 10A form "C" alarm contacts
  • One set of 2A form "A" alarm contacts
  • One set of 10A form "C" trouble contacts
  • Standard interchangeable "plug-in" UL268 photoelectric or ionization heads

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Option Detection Type RT-3000 SL-2000 SM-501 Price Purchase
SSU-SL-2000-N
SSU-SL-2000-N
Ionization Sensor
SSU-SL-2000-N
Ionization
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SSU-SL-2000-P
SSU-SL-2000-P
Photoelectric Sensor
SSU-SL-2000-P
Photoelectric
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SSU-55000-225
SSU-55000-225
Replacement Ionization Detector for RT-3000-N
SSU-55000-225
Ionization Yes Yes Yes
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SSU-55000-328
SSU-55000-328
Replacement Photoelectric Detector for RT-3000-P
SSU-55000-328
Photoelectric Yes Yes Yes
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