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System Sensor D4120 4-Wire Photoelectric Low-Flow Duct Smoke Detector
D4120 System Sensor | JMAC Supply
 
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Product Code: SYSTEM-SENSOR-D4120
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System Sensor D4120 4-Wire Photoelectric Low-Flow Duct Smoke Detector

The SYSTEM-SENSOR-D4120 4-wire photoelectric, low-flow, duct smoke detector senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute, temperatures of -4 degreesF to 158 degreesF, and a humidity range of 0 to 95 percent (non-condensing). A plug-in sensor head offers improved false alarm immunity and simple installation, testing, and maintenance.

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.

The D4120 features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork. The unit is equipped with a cover design isolates the sensor head from the low-flow feature for simple maintenance.
Features:
  • 4-Wire Photoelectric, integrated low-flow technology
  • Air velocity rating from 100 ft/min to 4,000 ft/min
  • (0.5 m/s to 20.32 m/sec)
  • Versatile mounting options: square or rectangular configuration
  • Plug-in sensor offers superb false alarm immunity and the latest sensor technology
  • Broad ranges for operating temperature (4F to 158F) and humidity (0% to 95% non-condensing)
  • Patented sampling tube installs from front or back of the detector with no tools required
  • Increased wiring space with a newly added -inch conduit knockout
  • One easy-access Test/Reset button and improved LED status
  • Patented interconnect feature for multi-fan shutdown
  • New high contrast terminal designations
  • Built-in short circuit protection from operator wiring errors
  • Field selectable settings for configuring the detector
  • Two DPDT Form-C relay contacts
  • 24 VAC/DC or 120 VAC
  • Backward compatibility with existing Innovair products, including remote accessories


Technical Specifications:

  • Rectangular Dimensions: 14.38 in (37 cm) Length; 5 in (12.74 cm) Width; 2.5 in (6.36 cm) Depth
  • Square Dimensions: 7.75 in (19.7 cm) Length; 9 in (22.9 cm) Width; 2.5 in (6.35 cm) Depth
  • Weight: 2.5 lbs (1.14 kg)
  • Air Duct Velocity: 100 to 4000 ft/min (0.5 to 20.32 m/sec)
  • Power Supply Voltage: 120 VAC, 50-60 Hz
  • Reset Voltage: 10 VAC min
  • Reset time: (with RTS151) .03 to 0.3 sec.
  • Reset time: (by power down) 0.6 sec. max.
  • Power up time: 35 sec. max.
  • Alarm response time: 15 sec.
  • Max. standby current: 20 mA RMS @ 120VAC 60 Hz
  • Max. alarm current: 35 mA RMS @ 120VAC 60 Hz
  • Alarm initiation contacts: (SPST) 2.0A @ 30 VDC (resistive)
  • Alarm auxiliary contacts: (DPDT) HP @ 120 VAC

Average Customer Review: 5 of 5 Total Reviews: 2 Write a review.

  7 of 7 people found the following review helpful:
 
Review left on 3/16/2013
Reviewer: Nichole Estes from Highfill, AR  
Purchased the System Sensor D4120

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  3 of 3 people found the following review helpful:
 
Review left on 7/30/2013
Reviewer: Raelene Phillips from Thomaston, AL  
Purchased the System Sensor D4120

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