System Sensor

System Sensor - D4120 - 4-Wire Photoelectric Duct Smoke Detector

Item: SYSD4120
MFG: D4120
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InnovairFlex™ 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 test feature, and remote test station accessories simplify testing and maintenance. With its unmatched flexibility, InnovairFlex can adjust to fit any application
  • 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 and latest sensor technology help prevent false alarms
  • Broad ranges for operating temperature (–4°F to 158°F) 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 an additional ¾-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

California residents: see Proposition 65 Warning

Features and Specification

Weight 3.300000
Operating Temperature Range -4°F to 158°F (-20°C to 70°C)
Package Weight 3.300000
Package Height 4.000000
Power Source DC
Package Length 15.500000
Package Width 5.250000
Operating Temperature -4°F to 158°F (-20°C to 70°C)
Maximum Voltage 120 VAC/24 VDC
Mounting Side by Side or Top over Bottom
Locking Pin No
Length 14.380000
Wire Gauge Up to 12 AWG
UPC 783863034411
Visual Alert No
Voltage 120 VAC
Warranty Offered Yes
UL Listed Yes
Width 5.000000
Type Duct Smoke Detector
Test Button Yes
Terminal Connection Yes
Hush Button No
Switch Action Dip Switches
Standards UL, FM, CSFM
Sensor Type Photoelectric
UL Recognized No
Height 2.500000
Contact Rating Alarm initiation contacts (SPST) 2.0A @ 30 VDC (resistive)Alarm auxiliary contatcs (DPDT) 10A @30 VDC (resistive)10A @250 VAC (resistive)1/2 HP @240 VAC1/4 HP @120 VACNOTE: Alarm auxiliary contacts shall not be connected to initiating circuits ofcontrol panels. Use the alarm initiation contact for this purpose.Supervisory Contacts (SPDT) 2.0A @ 30 VDC (resistive)2.0A @ 125 VAC (resistive)
Accuracy Not Provided
Amps 0.21
Application Duct Smoke Detection
Audible Alert No
Batteries Included No
Batteries Required No
Battery Backup No
Brand System Sensor
Color Gray
Connection Type Terminal Block
Cubic Measurement 0.104000
Display Options None
CUL Listed No
EAN 0783863034411
Display No
Dimensional Weight 2.000000
Digital Readout No
Detection Method Photoelectric
Cycle/Hertz 50/60 Hz