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4-Wire Photoelectric Low-Flow Duct Smoke Detector
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4-Wire Photoelectric Low-Flow Duct Smoke Detector
Item ID:D4120
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Specifications for the: D4120

Operating Temperature Range:-4F to 158F (-20C to 70C)
Storage Temperature:-22F to 158F (-30C to 70C)
Operating Humidity Range:0% to 95% relative humidity non-condensing
Air Duct Velocity:100 to 4000 ft./min. (0.5 to 20.32 m/sec)
Dimensions:Rectangular: 14.38 in (37 cm) L; 5 in (12.74 cm) W; 2.5 in (6.36 cm) D
Square: 7.75 in (19.7 cm) L; 9 in (22.9 cm) W; 2.5 in (6.36 cm) D
Shipping Weight:2.5 lbs. (1.14 kg)
Voltage Range:20-29 VDC; 24 VAC 50-60 Hz; 120 VAC 50-60 Hz
Alarm auxiliary contacts (DPDT):10A @ 30 VDC (resistive); 10A @ 250 VAC (resistive); HP @ 240 VAC ; HP @ 120 VAC
Alarm Initiation Contacts:2.0A @ 30 VDC (resistive)
Power Supply Voltage:20-29 VDC; 24 VAC, 50-60 Hz; 120 VAC 50-60 Hz
Input Capacitance:270 F max.
Reset Voltage:3.0 VDC min.; 2.0 VAC min.; 10 VAC min.
Alarm Current:65 mA @ 24VDC 135 mA RMS @ 24VAC 60Hz 35 mA RMS @ 120VAC 60Hz
Standby Current:21 mA @ 24VDC 65 mA RMS @ 24VAC 60Hz 20 mA RMS @ 120VAC 60Hz
Reset Time w/ RTS451:0.03 to 0.3 sec.
Reset Time by Power Down:0.6 sec. max.
Power Up Time:35 sec. max.
Alarm Response Time:15 sec.
Feature 6
4-Wire Photoelectric Duct Smoke Detector The InnovairFlex Series are the only duct smoke detectors flexible enough to fit configurations from square to rectangular and everything in between. Features 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 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 to 4,000 feet per minute, temperatures of 4F to 158F, and a humidity range of 0 to 95 percent (noncondensing). 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 -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 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. WARNING: Duct smoke detectors are NOT a substitute for open area smoke detectors; NOT a substitute for early warning detection; NOT a replacement for a buildings regular fire detection system. S911 3029700 3242-1653:207 2202 Refer to NFPA 72 and 90A for additional information.A05-0419-002 InnovairFlex Duct Smoke Detector Specifications Architectural/Engineering Specifications The air duct smoke detector shall be a System Sensor InnovairFlex D4120 Photoelectric Duct Smoke Detector. The detector housing shall be UL listed per UL 268A specifically for use in air handling systems. The flexible housing of the duct smoke detector fits multiple footprints from square to rectangular. The detector shall operate at air velocities of 100 feet per minute to 4000 feet per minute (0.5 to 20.32 meters/second). The unit shall be capable of controlling up to 50 air handling systems when interconnected with other detectors. The detector shall be capable of providing a trouble signal in the event that the front cover is removed. It shall be capable of local testing via magnetic switch, test button on the cover, or remote testing using the SSK451 Multi-Signaling Accessory or the RTS451KEY Remote Test Station. Terminal connections shall be of the strip and clamp method suitable for 1218 AWG wiring. Physical Specifications Size: (Rectangular Dimensions) (Square Dimensions) 14.38 in (37 cm) Length; 5 in (12.74 cm) Width; 2.5 in (6.36 cm) Depth 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) Operating Temperature Range: D4120 & D4S: 4 to 158F (20 to 70C); D4P120: 40 to 158F (40 to 70C) Storage Temperature Range: D4120 & D4S: 22 to 158F (30 to 70C); D4P120: 40 to 158F (40 to 70C) Operating Humidity Range: 0% to 95% relative humidity non-condensing Air Duct Velocity: 100 to 4000 ft/min (0.5 to 20.32 m/sec) Electrical Ratings Power supply voltage: 2029 VDC 24 VAC 5060 Hz 120 VAC 5060 Hz Input capacitance: 270 F max. 270 F max. N/A Reset voltage: 3.0 VDC min. 2.0 VAC min. 10 VAC min. Reset time: (with RTS451) .03 to 0.3 sec. .03 to 0.3 sec. .03 to 0.3 sec. Reset time: (by power down) 0.6 sec. max. 0.6 sec. max. 0.6 sec. max. Power up time: 35 sec. max. 35 sec. max. 35 sec. max. Alarm response time: 15 sec. 15 sec. 15 sec. Sensitivity Test: See detector label See detector label See detector label Current Requirements: (Using No Accessories) Max. standby current: 21 mA @ 24VDC 65 mA RMS @ 24VAC 60Hz 20 mA RMS @ 120VAC 60Hz Max. alarm current: 65 mA @ 24VDC 135 mA RMS @ 24VAC 60Hz 35 mA RMS @ 120VAC 60Hz Contact Ratings Alarm initiation contacts: (SPST) 2.0A @ 30 VDC (resistive) Alarm auxiliary contacts: (DPDT) 10A @ 30 VDC (resistive); 10A @ 250 VAC (resistive); HP @ 240 VAC ; HP @ 120 VAC Note: Alarm auxiliary contacts shall not be connected to initiating circuits of control panels. Use the alarm initiation contact for this purpose. Supervisory contacts: (SPDT) 2.0A @ 30 VDC (resistive); 2.0A @ 125 VAC (resistive) Accessory Current Loads at 24 VDC Device Standby Trouble Alarm APA151/APA451 12.5 mA n/a 30 mA Max. MHR/MHW 0 mA n/a 29 mA Max. RA100Z 0 mA n/a 12 mA Max. RTS151/RTS151KEY 0 mA/12 mA n/a 12 mA Max. RTS2/RTS2-AOS 3.0mA max 16 mA Max. with strobe: 55 mA max; without strobe 30 mA max Note: Any combination of accessories may be used such that the given accessory loads are: 110 mA or less at the Aux output, and 50 mA or less at the Alarm output Installing the InnovairFlex Sampling Tube The InnovairFlex 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 (front locking tab shown below right).A05-0419-002