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System Sensor InnovairFlex D4120 4-Wire Photoelectric Low Flow Duct Smoke The InnovairFlex D4120 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork. This unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 - 4000 fpm, temperatures of 4 to 158 deg F and a humidity range of 0 to 95% (non-condensing). A plug-in sensor head offers improved false alarm immunity and simple installation, testing and maintenance. An improved cover design isolates the sensor head from the low-flow feature for simple maintenance. The InnovairFlex housing provides ample wiring space, a 3/4 inch conduit knockout and built-in short circuit protection to prevent damage to sensitive components during installation. High contrast terminal designations make wiring easy. With its 2:1 sensor-to-power capability, the power board of the D4120 may be used to monitor a second sensor, D4S, simultaneously (i.e., supply and return side). As many as 50 InnovairFlex detectors can be interconnected. When one unit senses smoke, all interconnected detectors will switch their relays; only the detector sensing smoke will go into alarm, thus pinpointing the fire source. An easy-access test/reset button makes it possible to test the unit with the cover on. Three DIP switches can be used to configure field selectable settings: cover tamper delay, number of sensors to be controlled and shut down on trouble option. Each power board has 2 LEDs that can be used to indicate the status of connected sensors and a quick reference imprinted on the cover explains the LED status indications (standby, maintenance, trouble and alarm). The InnovairFlex duct smoke detector can be customized to meet local codes and specifications without additional wiring. The new InnovairFlex product line is compatible with all previous Innovair models, including remote test accessories.
Item#:
D4120
Manufacturer Item:
D4120
Manufacturer:
SYSTEM SENSOR
System Sensor DST3 Metal Sampling Tube for Use with Conventional and Intelligent Duct Smoke Detectors, 3 feet
Item#:
DST3
Manufacturer Item:
DST3
Manufacturer:
SYSTEM SENSOR
System Sensor DST5 Metal Sampling Tube for Use with Conventional and Intelligent Duct Smoke Detectors, 5 feet
Item#:
DST5
Manufacturer Item:
DST5
Manufacturer:
SYSTEM SENSOR
System Sensor RTS2-AOS Multi-Signaling Accessory with Add-On Strobe for Use with Conventional and Intelligent Duct Smoke Detectors, 20 - 29 VDC
  • RTS2-AOS multi-signaling accessories are designed to work with InnovairFlex 4-wire conventional duct smoke detectors
  • These accessories include a key switch that can be used to select one of two connected sensors to be tested, reset, or both by a push button switch
  • They also enable sensitivity measurements using the SENS-RDR sensitivity reader
  • The AOS (Add-On Strobe) is an optional accessory included with the RTS2-AOS model
Item#:
RTS2-AOS
Manufacturer Item:
RTS2-AOS
Manufacturer:
SYSTEM SENSOR
System Sensor RTS2 Multi-Signaling Accessory for InnovairFlex 4-wire Conventional Duct Smoke Detectors
  • 85 dBA at 10 feet sounder
Item#:
RTS2 SYS SENSOR
Manufacturer Item:
RTS2
Manufacturer:
SYSTEM SENSOR
System Sensor DST1.5 Metal Sampling Tube for use with D4120, D4120W, D4S Duct Smoke Detectors
  • The sampling tube may be installed from the front or back of the detector
  • The tube locks securely into place and can be removed by releasing the front or rear locking tab
Item#:
DST1.5
Manufacturer Item:
DST1.5
Manufacturer:
SYSTEM SENSOR
System Sensor InnovairFlex D4120W White Photoelectric 4-Wire Duct Smoke The InnovairFlex D4120W watertight 4-wire photoelectric duct smoke detector is UL listed as a watertight enclosure providing protection against falling dirt, rain, windblown dust, splashing and hose directed water. D4120W duct smoke detector features a pivoting housing that fits various applications: both square and rectangular footprints mount to round or rectangular ductwork. The new design provides the same form, fit, and wiring terminations as the standard InnovairFlex unit. Superior test and operational features added to the standard model are also available in this watertight unit. As the only watertight duct smoke detector on the market, D4120W provides unsurpassed environmental protection while simplifying installation, testing, and maintenance. This InnovairFlex duct smoke detector can be customized to meet local codes and specifications without additional wiring. The new InnovairFlex product line is compatible with all previous Innovair models, including remote test accessories.
Item#:
D4120W
Manufacturer Item:
D4120W
Manufacturer:
SYSTEM SENSOR
System Sensor DUCTSD Conventional Standard Duct Smoke Detector, 24 VAC/VDC, 120 VAC, 14.38 Inch L x 5 Inch W x 2-1/2 Inch D System Sensor duct smoke detectors combine an impressive collection of innovations to greatly simplify HVAC system monitoring. One unit can accommodate multiple installation footprints to overcome mounting constraints. Tool-free, plug-in sampling tubes speed and simplify installation. Broad temperature and humidity ranges accommodate exposure to environmental extremes. Easily visible status indications, a readily accessible smoke test feature, and remote test station accessories simplify testing and maintenance. With unmatched fl exibility, these detectors can adjust to fit any application.
  • 4-wire photoelectric, integrated low-flow technology
  • Air velocity rating from 100-4000 fpm
  • Versatile mounting options: square or rectangular configuration
  • Cover integrated smoke test port
  • Plug-in sensor offers the latest sensor technology
  • Patented sampling tube installs from front or back of the detector with no tools required
  • Increased wiring space with an added ¾-inch conduit knockout
  • One easy-access test/reset button
  • Patented interconnect feature for multi-fan shutdown
  • High contrast terminal designations and wiring diagram label make wiring easy
  • Built-in short circuit protection from operator wiring errors
  • (2) DPDT form-C relay contacts
  • 35 sec power up time, 0.6 sec reset time by power down
  • 21 milli-amp at 24 VDC, 65 milli-amp RMS at 24 VAC 60 Hz, 20 milli-amp RMS at 120 VAC 60 Hz standby current System Sensor duct smoke detectors combine an impressive collection of innovations to greatly simplify HVAC system monitoring. One unit can accommodate multiple installation footprints to overcome mounting constraints. Tool-free, plug-in sampling tubes speed and simplify installation. Broad temperature and humidity ranges accommodate exposure to environmental extremes. Easily visible status indications, a readily accessible smoke test feature, and remote test station accessories simplify testing and maintenance. With unmatched fl exibility, these detectors can adjust to fit any application.
Item#:
DUCTSD
Manufacturer Item:
DUCTSD
Manufacturer:
SYSTEM SENSOR
System Sensor APA151 Remote Annunciator with Piezo Alarm for Use with Conventional and Intelligent Duct Smoke Detectors, 16 - 33 VDC
Item#:
APA151
Manufacturer Item:
APA151
Manufacturer:
SYSTEM SENSOR
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