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The InnovairFlex D4120 four 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 to 4000 ft/min, 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 in 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 pin pointing the fire source. An easy access test or 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 two 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.
System Sensor® Duct Smoke Detector, Series: InnovairFlex, 0 to 95 % Humidity Rating, Plug-In Sensor, 100 to 4000 fpm Air Duct Velocity, 65 mA at 24 VDC, 135 mA RMS at 24 VAC 60 Hz, 35 mA RMS at 120 VAC 60 Hz Alarm Current, 270 uF, 120 VAC Maximum Standby Current, 20 to 29 VDC, 24/120 VAC, 3 VDC min, 2 VAC min, 10 VAC min Reset Voltage, 0.6 s Reset Time, 15 s Response, -4 to 158 deg F, 5 in, 9 in Width, 14.38 in, 7-3/4 in Height, 2-1/2 in Depth
| Air Duct Velocity | : | 100 to 4000 fpm |
| Alarm Current | : | 65 mA at 24 VDC, 135 mA RMS at 24 VAC 60 Hz, 35 mA RMS at 120 VAC 60 Hz |
| Capacitance | : | 270 uF |
| Depth | : | 2-1/2 in |
| Height | : | 14.38 in, 7-3/4 in |
| Humidity Rating | : | 0 to 95 % |
| Maximum Standby Current | : | 120 VAC |
| Reset Time | : | 0.6 s |
| Reset Voltage | : | 3 VDC min, 2 VAC min, 10 VAC min |
| Response Time | : | 15 s |
| Sensor Type | : | Plug-In |
| Series | : | InnovairFlex |
| Temperature Rating | : | -4 to 158 deg F |
| Voltage Rating | : | 20 to 29 VDC, 24/120 VAC |
| Width | : | 5 in, 9 in |
- Four-wire photoelectric, integrated low flow technology
- 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 (-4 to 158 deg 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 a newly added 3/4 in 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
- Backward compatibility with existing Innovair products, including remote accessories
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