4-Wire Photoelectric Duct Smoke Detector-D4240

4-Wire Photoelectric Duct
Smoke Detector-D4240
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 (–4°F to 158°F) and
humidity (0% to 95% non-condensing)
•Patented sampling tube installs from the front or back of the
detector with no tools required
•Increased wiring space with a newly added 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 240 VAC
•Backward compatibility with existing Innovair products, including
remote accessories
Agency Listings
S911
3029700
The InnovairFlex D4240 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 operates in airflow speeds of 100 to 4,000 feet
per minute, temperatures of –4°F to 158°F, 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. An improved cover design isolates the sensor head
from the low-flow feature for simple maintenance.
The InnovairFlex housing provides ample wiring space, a ¾-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 D4240 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, enabling
the fire location to be pinpointed.
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 building’s regular fire detection system.
Refer to NFPA 72 and 90A for additional information.
InnovairFlex™ Duct Smoke Detector Specifications
Architectural/Engineering Specifications
The air duct smoke detector shall be a System Sensor InnovairFlex™ D4240 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 shall fit square and rectangular footprints. The detector shall
operate at air velocities of 100 feet per minute to 4,000 feet per minute (0.5 to 20.32 meters per 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 RTS2-AOS Multi-Signaling Accessory or
the RTS151KEY Remote Test Station. Terminal connections shall be of the strip and clamp method suitable for 12–18 AWG wiring.
Physical Specifications
Size: (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)
Operating Temperature Range:
D4240 & D4S: –4° to 158°F (–20° to 70°C)
Storage Temperature Range:
D4240 & D4S: –22° to 158°F (–30° to 70°C)
Operating Humidity Range:
0% to 95% relative humidity non-condensing
Air Duct Velocity:
100 to 4,000 ft/min (0.5 to 20.32 m/sec)
Electrical Ratings
Power supply voltage:
20–29 VDC
Input capacitance:
270 µF max.
Reset voltage:
3.0 VDC min.
Reset time: (with RTS451)
.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.
Sensitivity test:
See detector label
Current requirements: (using no accessories)
Max. standby current:
21 mA @ 24 VDC
Max. alarm current:
65 mA @ 24 VDC
24 VAC 50–60 Hz
270 µF max.
2.0 VAC min.
.03 to 0.3 sec.
0.6 sec. max.
35 sec. max.
15 sec.
See detector label
240 VAC 50–60 Hz
N/A
20 VAC min.
.03 to 0.3 sec.
0.6 sec. max.
35 sec. max.
15 sec.
See detector label
65 mA RMS @ 24 VAC 60 Hz
135 mA RMS @ 24 VAC 60 Hz
10 mA RMS @ 240 VAC 60 Hz
18 mA RMS @ 240 VAC 60 Hz
Contact Ratings
Alarm initiation contacts: (SPST)
2.0 A @ 30 VDC (resistive)
Alarm auxiliary contacts: (DPDT)
10 A @ 30 VDC (resistive); 10 A @ 250 VAC (resistive); ½ HP @ 240 VAC ; ¼ 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)
2.0 A @ 30 VDC (resistive); 2.0 A @ 125 VAC (resistive)
Accessory Current Loads at 24 VDC
Device
Standby
Trouble
Alarm
APA151
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
8.0 mA max.
16 mA max.
40 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).
HVDS00400
Wiring for 4-Wire Duct Smoke Detector and Accessories
POWER INPUTS (NOTE 1)
24VAC/DC
9
POWER INPUTS (NOTE 1)
240
VAC
10
9
Varistor
OR
N.C.
16
6
N.O.
AUX B
C.
N.C.
17
8
N.C.
7
16
SUPERVISORY CONTACTS
(NOTE 3)
SUP C.
UL/FM LISTED
4-WIRE
CONTROL PANEL
AUX A
C.
6
N.O.
17
N.C.
AUX B
C.
N.O.
8
18
7
SUPERVISORY CONTACTS
(NOTE 3)
SUP C.
SUP N.O.
14
Varistor
AUXILIARY CONTACTS
FOR FAN SHUTDOWN, ETC. (NOTE 2)
N.O.
18
10
OR
AUXILIARY CONTACTS
FOR FAN SHUTDOWN, ETC. (NOTE 2)
AUX A
C.
240
VAC
24V
SUP N.O.
14
3
EOL RESISTOR
SPECIFIED BY
PANEL
MANUFACTURER
3
+
ALARM
INITIATION
LOOP
ALARM
INITIATION
CONTACTS
(NOTE 4)
5
ALARM C.
4
ALARM N.O.
ALARM
INITIATION
CONTACTS
(NOTE 4)
FIRST DETECTOR IN THE LOOP
NOTE 1: 24V Power Inputs accept a non-polarized 24VDC or 24VAC 50-60Hz.
240VAC Power Inputs accept only 240VAC 50-60Hz. Connect power
source to appropriate terminals of each detector. See specifications
for additional power supply information. Please note that a varistor
is put across the 240 VAC terminals to protect the product from
transient damage.
NOTE 2: Auxiliary contacts shown in standby position. Contacts switch
during alarm as indicated by arrows. Auxiliary contacts are not to
be used for connection to the control panel. See specifications for
contact ratings.
5
ALARM C.
4
ALARM N.O.
LAST DETECTOR IN THE LOOP
NOTE 3: Supervisory contacts shown in standby position. Open contacts
indicate a trouble condition to the panel. See specifications for
contact ratings.
NOTE 4: Alarm Initiation contacts shown in standby position. Closed
contacts indicate an alarm condition to the panel. See specifications
for contact ratings.
*Please refer to the corresponding installation manual for accessory wiring diagrams.
Important Notes on 2:1 Sensor-to-Power Capability
• 2:1 sensor-to-power capability is not available for all InnovairFlex models. The feature is only available on the D4240 4-wire conventional models.
• 2:1 sensor-to-power capability can be enabled using one D4240 and one D4S.
Important Interconnect Notes
• When using the interconnect feature, all interconnected units must be powered using the same independent supply.
• Polarity must be maintained throughout the interconnect wiring. Connect the INT+ terminal on unit 1 to the INT+ terminal on unit 2 and so on. Similarly,
connect the INT/AUX-terminal on unit 1 to the INT/AUX- terminal on unit 2 and so on.
• Up to 50 D4240 units may be interconnected.
* NOTE: A
larm can be reset only at the initiating device and not at the interconnected devices.
HVDS00400
Accessories
System Sensor provides system flexibility with a variety of accessories, including two remote test stations and several different means of
visible and audible system annunciation. As with our duct smoke detectors, all duct smoke detector accessories are UL listed.
RTS151KEY UL S2522
RTS151 UL S4011
RA100Z UL S2522
MHW UL S4011
APA151 UL S4011
MHR UL S4011
RTS2-AOS UL S2522
AOS
Ordering Information
Part No.
D4240
Accessories
D4S
2D51
DST1
DST1.5
DST3
DST5
DST10
P48-21-00
DH400 OE-1
ETX
M02-04-00
Description
4-wire photoelectric low-flow duct smoke detector
4-wire photoelectric sensor component only
4-wire conventional photoelectric sensor head
Metal sampling tube duct width up to 1 ft (0.3 m)
Metal sampling tube duct widths 1 ft to 2 ft (0.3 to 0.6 m)
Metal sampling tube duct widths 2 ft to 4 ft (0.6 to 1.2 m)
Metal sampling tube duct widths 4 ft to 8 ft (1.2 to 2.4 m)
Metal sampling tube duct widths 8 ft to 12 ft (2.4 to 3.7 m)
End cap for metal sampling tubes
Weatherproof enclosure
Metal exhaust tube duct width 1ft (0.3 m)
Test magnet
MHR
MHW
APA151
RA100Z
RTS151
RTS151KEY
RTS2-AOS
3825 Ohio Avenue • St. Charles, IL 60174
Phone: 800-SENSOR2 • Fax: 630-377-6495
Mini Horn, Red
Mini Horn, White
APA151 remote annunciator with Piezo alarm
Remote annunciator alarm LED
Remote test station
Remote test station with key lock
Multi-signaling accessory
©2010 System Sensor.
Product specifications subject to change without notice. Visit systemsensor.com for
current product information, including the latest version of this data sheet.
HVDS00400 • 9/10 • #2469