SYSTEMSENSOR RTS451

4-Wire Ionization
Duct Smoke Detector
System Sensor’s Innovair DH100ACDCI reduces the
spread of smoke through HVAC air handling systems.
As an ionization duct detector, it’s ultra-responsive to
submicron-sized smoke particles typically found near
a fire source.
The DH100ACDCI senses smoke in velocities from 500 to 4,000 feet
per minute. When smoke is detected, all interconnected Innovairs
will initiate their relays. However, to quickly locate the fire source,
only the detector sensing smoke will alarm. Two DPDT Form-C relay
contacts, connected to auxiliary equipment, can also be configured
to prevent the spread of smoke through a particular area.
Beyond its reliable performance, the DH100ACDCI is simple to install
and maintain. Powered by 24 VAC/DC or 120/240 VAC, it can be easily
mounted to round and rectangular ducts, from one to twelve feet
in width, with outside mounting tabs. It also offers an adjustable
telescopic sampling tube that can be used for duct widths up to 18
inches. The tube locks into place – no additional tools are necessary.
Features
• Ionization technology
• An air velocity rating from 500 feet per minute to 4,000 feet per
minute (2.54 meters per second to 20.32 meters per second)
• Patented interconnectability for multi-fan shutdown
• Two DPDT Form-C relay contacts
• 24 VAC/DC or 120/240 VAC
• Versatile mounting options
• Outside mounting tabs
• A patented telescopic sampling tube
• Modular construction
Its modular construction allows for easy cleaning and field
replacement of the power and sensor boards. Also simplifying
maintenance is a transparent cover that provides convenient visual
inspection. If the cover is removed, a patented cover-tamper trouble
signal gives a 7-minute delay before the panel or remote accessory is
notified of trouble.
At a remote location, the remote test station option ensures that
a detector is functioning properly, and the remote sounder/LED
indicator options signal if a detector is in alarm. However, the cover
does not need to be removed if a detector needs to be reset at the
detector. Simply push the built-in reset button.
• A patented cover-tamper trouble signal
• A transparent cover
• A remote test station
• Remote sounder/LED indicator options
• A built-in reset button
Agency Listings
WARNING: Duct smoke detectors are NOT a substitute for open
area smoke detectors, NOT a substitute for early warning detection
and NOT a replacement for a building’s regular fire detection system.
Refer to NFPA 72 and 90A for additional information.
268A
Innovair Duct Smoke Detector Specifications
Architectural/Engineering Specifications
The air duct smoke detector shall be a System Sensor Model DH100ACDCI Series Duct Smoke Detector. The detector housing shall be UL listed per UL 268A
specifically for use in air handling systems. The detector shall operate at air velocities of 500 feet per minute to 4000 feet per minute (2.54 to 20.32 meters/
second). The unit shall be capable of controlling up to ten (10) 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 or remote testing using the SSK451
Multi-Signaling Accessory or the RTS451KEY Remote Test Station. The unit shall be reset by local reset button or remote test station. The duct smoke detector
housing shall incorporate an airtight smoke chamber in compliance with UL 268A, Standard for Smoke Detectors for Duct Applications. The housing shall be
capable of mounting to either rectangular or round ducts without adapter brackets. An integral filter system shall be included to reduce dust and residue effects
on detector and housing, thereby reducing maintenance and servicing. Sampling tubes shall either be telescoping or be easily installed by passing through the
duct housing after the housing is mounted to the duct. The unit shall provide a spacial separation of no less than ¼˝ (6.4 mm) and/or a physical barrier between
the high and low voltage terminals. The enclosure shall meet all applicable NEC and NFPA standards regarding electrical junction boxes. Terminal connections
shall be of the strip and clamp method suitable for 12–18 AWG wiring.
Physical Specifications
Size
143⁄8˝ (37 cm.) Length; 5½˝ (14 cm.) Width; 2¾˝ (7 cm.) Depth
Shipping Weight
3¾ lbs. (1.7 kg.)
Operating Temperature Range
32° to 120°F (0° to 49°C)
Operating Humidity Range
10% to 93% relative humidity non-condensing
Air Duct Velocity
500 to 4000 ft./min. (2.54 to 20.32 m/sec.)
Electrical Ratings – DH100ACDCLP (Includes Detector)
Power supply voltage:
20-29 VDC
24 VAC 50-60 Hz
120 VAC 50-60 Hz
220/240 VAC 50-60 Hz
Input capacitance:
270 µF max.
270 µF max.
N/A
N/A
Reset voltage:
3.0 VDC min.
2.0 VAC min.
10 VAC min.
20 VAC min.
Reset time (with RTS451):
.03 to 0.3 sec.
.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.
0.6 sec. max.
Power up time:
34 sec. max.
34 sec. max.
34 sec. max.
34 sec. max.
Alarm response time:
2 to 17 sec.
2 to 17 sec.
2 to 17 sec.
2 to 17 sec.
Sensitivity Test:
See detector label
See detector label
See detector label
See detector label
Current Requirements (Using No Accessories)
Max. standby current:
15 mA
35 mA RMS
25 mA RMS
15 mA RMS*
Max. alarm current:
70 mA
125 mA RMS
35 mA RMS*
25 mA RMS*
Contact Ratings
Alarm initiation contacts (SPST):
2.0A @ 30 VAC/DC (0.6 power factor)
Alarm auxiliary contacts (DPDT):
10A @ 30 VDC; 10A @ 250 VAC
Note: Alarm auxiliary contacts must switch 100mA minimum at 5 VDC. Alarm auxiliary contacts shall not be connected to initiating circuits of control panels. Use
the alarm initiation contact for this purpose.
Trouble contacts (SPDT):
2.0A @ 30 VDC (resistive); 2.0A @ 125 VAC (resistive)
Accessory Current Loads at 24 VDC
Device
Standby
Trouble
Alarm
APA451
12.5 mA Max.
n/a
30 mA Max.
PA400
0 mA
n/a
15 mA Max.
RA400Z
0 mA
n/a
10 mA Max.
RTS451/RTS451KEY
12 mA*
n/a
7.5 mA Max.
SSK451
5 mA Max.
9 mA Max.
30 mA Max.
*Note: When a unit is powered at the 120 VAC or 220/240 VAC input, any combination of accessories may be used such that the given accessory loads are: 60
mA or less in the standby state; 110 mA or less in the alarm state.
A05-0315-002
Wiring Guide
System wiring diagram for 4-wire duct smoke detectors
AVAILABLE POWER INPUTS
AVAILABLE POWER INPUTS
POWER INPUTS ACCEPT
24 VDC, 24 VAC 50-60 HZ,
120 VAC 50-60 HZ, OR
220/240 VAC 50-60 HZ.
CONNECT POWER SOURCE
TO APPROPRIATE TERMINALS
OF EACH DETECTOR.
120
VAC
24V
120
VAC
24V
220/240
VAC
220/240
VAC
16
AUX. CONTACT RATINGS
10A @ 30 VDC RESISTIVE
10A @ 250 VAC
100mA MINIMUM @ 5 VDC
NOT INTENDED FOR
CONNECTION TO CONTROL
PANELS.
N.C.
TROUBLE CONTACT RATING
2.0 A @ 30 VDC resistive
ALARM AUXILIARY CONTACTS
FOR FAN SHUTDOWN, ETC.
ALARM AUXILIARY CONTACTS
FOR FAN SHUTDOWN, ETC.
18
7
17
6
C.
N.O.
N.O.
CONNECT POWER SOURCE
TO APPROPRIATE TERMINALS
OF EACH DETECTOR. SEE
SPECIFICATIONS FOR
ADDITIONAL POWER SUPPLY
INFORMATION.
C
B
A
10
9
C
B
A
10
9
17
7
N.O.
N.O.
C.
N.C.
N.C.
C.
6
16
8
8
18
N.C.
C.
ALARM AUXILIARY CONTACTS SHOWN IN
STANDBY. CONTACTS TRANSFER DURING
ALARM AS INDICATED BY THE ARROWS.
ALARM AUXILIARY CONTACTS SHOWN IN
STANDBY. CONTACTS TRANSFER DURING
ALARM AS INDICATED BY THE ARROWS.
SUPERVISORY TROUBLE CONTACTS
SUPERVISORY TROUBLE CONTACTS
14
3
14
FOR WIRING OF AUXILIARY
DEVICES, REFER TO
MANUFACTURER'S
INSTALLATION INSTRUCTIONS
OR CONTACT MANUFACTURER.
NOTE: THE SUPERVISORY RELAY NOW
PROVIDES A "FORM C" CONTACT FOR
CUSTOMIZED APPLICATIONS.
FOR STANDARD APPLICATIONS, ONLY
THE "NO" CONTACT IS USED
3
TROUBLE CONTACTS CLOSED IN ALARM AND STANDBY.
CONTACTS OPEN WHILE DETECTOR PCB OR POWER IS
REMOVED OR WHEN TAMPER FEATURE TIMES OUT. OPEN
CONTACTS SIGNAL TROUBLE CONDITION TO PANEL.
TROUBLE CONTACTS CLOSED IN ALARM AND STANDBY.
CONTACTS OPEN WHILE DETECTOR PCB OR POWER IS
REMOVED OR WHEN TAMPER FEATURE TIMES OUT. OPEN
CONTACTS SIGNAL TROUBLE CONDITION TO PANEL.
+
5
5
CONTACTS SHOWN
OPEN IN STANDBY.
CONTACTS CLOSE
IN ALARM.
ALARM
INITIATION
CONTACTS
CONTACTS SHOWN
OPEN IN STANDBY.
CONTACTS CLOSE
IN ALARM.
ALARM
INITIATION
CONTACTS
ALARM
INITIATION
LOOP
4
4
–
Wiring diagram for the DH100ACDCI to RTS451/
RTS451KEY and interconnect feature:
DH100ACDCI
15
1
(Red LED) Alarm
Aux. Power +
19
6
(Green LED)
Power
Sup. N. O.
14
Sup. COM
3
Aux. Power –
20
Reset
2
Test
11
Interconnect –
1
Interconnect +
12
Unit 1
DH100ACDCI
UNIT 2
Interconnect –
Wiring diagram for DH100ACDCI to SSK451 and
interconnect feature:
FIELD INSTALLED
JUMPER FOR
TEMPORAL PATTERN
RTS451/RTS451KEY
Alarm Signal
*
2
3
4
5
Interconnect + 12
COMMON
3
TEMPORAL SELECT
2
15
ALARM SIGNAL
1
3
SUPERVISORY SIGNAL
4
14
RESET
7
2
SUPERVISORY
CONTACT
NO
RESET
TEST
8
11
TEST
6
20
AUX. POWER (–)
POWER (+)
5
19
AUX. POWER (+)
12
INTERCONNECT +
1
INTERCONNECT –
FIELD INSTALLED
JUMPER
DH100ACDCI
APA451
Alarm Signal
15
Aux. Power +
19
2 Alarm
ALARM SIGNAL
POWER (–)
SSK451
Wiring diagram for DH100ACDCI to APA451:
DH100ACDCI
UNIT 1
12
INTERCONNECT +
1
INTERCONNECT –
Sup. N. O.
14
Sup. COM
3
Aux. Power –
20
3 Power
1 Common
NOTE: Wiring diagram shown is for DH100ACDCI 4-wire duct
smoke detector system equipped without a control panel.
NOTE: A trouble condition is indicated when the green LED
is not illuminated.
DH100ACDCI
UNIT 2
RTS451KEY only
*NOTE: For
without a Control Panel.
RTS451 does not have a terminal 6.
1
EOL RESISTOR
SPECIFIED BY
PANEL MANUFACTURER
LAST DETECTOR IN THE LOOP
DH100ACDCI
FIRST DETECTOR IN THE LOOP
DH100ACDCI
UL LISTED 4-WIRE
CONTROL PANEL
NOTE: Wiring diagram shown is for
DH100ACDCI 4-wire duct
smoke detector system equipped
without a control panel.
NOTE: A trouble condition is indicated
when the green LED is not
illuminated.
Coil Note:
Please note that the magnetic coil supplied with
the RTS451/RTS451KEY is not required when these
accessories are used with the DH100 detectors.
The functionality of the magnetic coil has been
designed into the circuitry of the Innovair duct
smoke detectors.
*NOTE: F
or RTS451KEY only without a Control
Panel.
RTS451 does not have a terminal 6.
NOTE: Wiring diagram shown is for DH100ACDCLP
4-wire duct smoke detector system
equipped without a control panel.
NOTE: A trouble condition is indicated when the
green LED is not illuminated.
Important Interconnect Notes
• When using the interconnect feature, all interconnected units must be powered with the same, independent supply.
•Polarity must be maintained throughout the interconnect wiring. Connect terminal 12 on unit 1 to terminal 12 on unit 2 and so on. Similarly, connect
terminal 1 on unit 1 to terminal 1 on unit 2 and so on.
A05-0315-002
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 detectors, all duct smoke detector accessories are UL listed.
APA451
Piezo Annunciator
(UL S4011)
RTS451KEY
Remote Test Station
with Key (UL S2522)
PA400W
Mini-Alert Sounder
(UL S3593)
shown with PS24LOW add-on
strobe (PS12/24SLENSW smoke
lens option available)
RTS451
Remote Test Station
(UL S2522)
RA400Z
Remote Annunciator
(UL S2522)
SSK451
Multi-Signaling Accessory
(UL 268A)
shown with PS24LOW add-on
strobe (PS12/24SLENSW smoke lens
option available)
SSK451
Multi-Signaling
Accessory
(UL 268A)
Ordering Information
Part No.
DH100ACDCI
A5052
A5064
Accessories
ST-1.5
ST-3
ST-5
ST-10
T80-71-00
P48-55-00
SSK451
RTS451KEY
RTS451
APA451
Description
4-wire ionization duct smoke detector
Replacement ionization detector board
Replacement 4-wire power board
Metal sampling tube duct widths 1´–2´ (0.3–0.6 m)
Metal sampling tube duct widths 2´–4´ (0.6–1.2 m)
Metal sampling tube duct widths 4´–8´ (1.2–2.4 m)
Metal sampling tube duct widths 8´–12´ (2.4–3.7 m)
Replacement telescoping sampling tube
Replacement end cap for T80-71-00
Multi-signaling accessory
Remote test station with key lock
Remote test station
Remote annunciator with piezo alarm
MOD400R
RA400Z
F36-09-11
M02-04-00
P48-21-00
S08-39-01
PA400W
PS24LOW
PS12/24SLENSW
PS12/24SLENSC
3825 Ohio Avenue • St. Charles, IL 60174
Phone: 800-SENSOR2 • Fax: 630-377-6495
Sensitivity test module
Remote annunciator alarm LED
Replacement air filters (two per package)
Test magnet
End cap for metal sampling tubes
Photo replacement screen
Mini-Alert sounder
Mini-Alert add-on strobe
Wall-mount “SMOKE” lens
Ceiling-mount “SMOKE” lens
©2006 System Sensor.
Product specifications subject to change without notice. Visit systemsensor.com for
current product information, including the latest version of this data sheet.
A05-0315-002 • 9/06 • #1676