SYSTEMSENSOR A5061

2-Wire Low-Profile
Duct Smoke Detector
Model
DH100P
2-Wire Photoelectronic
Detector
DH100P 2-Wire
Photoelectronic Detector
Product Overview
Outside mounting tabs
Patented plastic sampling tube
UL recognized field-replaceable power
and sensor boards
Built-in reset button
Easy to clean
12/24 VDC operation
Photoelectronic models available
Remote test station option
Air velocity rating from 500 to
4000 FPM
Remote annunciator option
Easy and quick mounting to round or
rectangular ducts from 1′′–12′′ wide
Textured cover for convenient visual
inspection
UL 268A listed
3-year warranty
®
APPROVED
The System Sensor DH100 2-wire duct smoke detector is available as a
photoelectronic model. This new design allows for simplified cleaning and
maintenance. The DH100 samples air currents passing through a duct and
gives dependable performance for management of fans, blowers, and air
conditioning systems, preventing the spread of toxic smoke and fire gases
through the protected area.
WARNING: Duct smoke detectors have specific limitations.
DUCT SMOKE DETECTORS ARE:
NOT a substitute for an open area smoke detector,
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 duct smoke detector
application information.
Architectural/Engineering Specifications
The air duct smoke detector shall be a System Sensor Model DH100 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. It shall be capable of local testing via magnetic switch or remote testing using the RTS451KEY
Remote Test Station. The unit shall be reset by local reset button or RTS451KEY. The duct 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 plastic or be easily installed after the housing is mounted to the duct by passing through the duct housing. 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.
Standard Specifications
Electrical Ratings
Size
143⁄8″ (37 cm.)L
51⁄2″(14 cm.)W
23⁄4″(7 cm.)D
System Voltage
12/24 VDC
Shipping Weight
31⁄4 lbs.
Operating Temperature Range
32° to 131° F (0° to 55° C)
Operating Humidity Range
10% to 93% relative humidity
Air Duct Velocity
500 to 4000 ft./min.
Ripple Voltage
4 Volts peak to peak
Star t-up Capacitance
0.02µF maximum
Standby Ratings
8.5 VDC minimum
35 VDC maximum
120µA maximum
Alarm Ratings
4.2 VDC minimum at 10mA
6.6 VDC maximum at 100mA
Alarm current must be limited to
100mA or less by the control panel.
If used, the RA400Z remote lamp
operates within the specified alarm
currents
Reset Voltage:
2.50 VDC minimum
Reset Time:
0.3 Sec. maximum
Star t-up Time
34.0 Sec. maximum
DH100 Wiring Guide
System wiring diagram for 2-wire duct smoke detectors (detectors powered from initiating device circuit)
UL LISTED
COMPATIBLE 2-WIRE
CONTROL PANEL
1ST DETECTOR
IN LOOP DH100
LAST DETECTOR
IN LOOP DH100
SUPERVISORY
SWITCH
7
6
SUPERVISORY
SWITCH
7
6
EOL RESISTOR
SPECIFIED BY
PANEL MANUFACTURER
(+)
(+) IN
4
ALARM
INITIATION
LOOP
5
8
(–) IN
(–)
(+) OUT
(+) IN
(+)
(+)
4
RA400Z (OPTIONAL)
REMOTE ALARM LED
(–)
(–)
5
2.8 VDC NOM.
IN ALARM
8
(–) IN
(–) OUT
(+) OUT
(+)
(+)
(–)
(–)
(–) OUT
STYLE D OPTIONAL WIRING
Wiring diagram for RTS451KEY Remote Test Station to 2-wire duct smoke detectors
V In +
7
V In / V Out — 8
DH100
RTS451 OR RTS451KEY
Test +
5
1
Test
Test / Reset —
2
4
Reset +
3
3
RA +
4
1
RA — 5
2
V Out +
6
V In +
7
V In / V Out — 8
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 circuitr y of
the Innovair™ duct smoke detectors.
Alarm
LED
Reset
6 No Connection
Panel
+
—
RA400Z (OPTIONAL) E
REMOTE ALARM LED O
L
R
2.8 VDC NOM.
IN ALARM
Ordering Information
Part Number
Description
DH100P
2-wire photoelectronic duct smoke detector
A5069
Replacement photoelectronic detector head
A5061
Replacement 2-wire power board
Accessories
ST-1.5
Metal sampling tube duct widths 1′–2′
MOD400R
Sensitivity test module
ST-3
Metal sampling tube duct widths 2′–4′
F36-09-00
Replacement air filters (two per package)
ST-5
Metal sampling tube duct widths 4′–8′
M02-04-00
Test magnet
ST-10
Metal sampling tube duct widths 8′–12′
P48-21-00
End cap for metal sampling tubes
T80-71-00
Replacement telescoping sampling tube
S08-39-01
Photo replacement screen
P48-55-00
Replacement end cap for T80-71-00
PA400
Mini-Aler t sounder
RTS451KEY
Remote test station with key lock (see below)
PS24LO
Mini-Aler t add-on strobe
RTS451
Remote test station
PS12/24SLENSC
Ceiling-mount “SMOKE” lens
RA400Z
Remote annunciator alarm LED (see below)
PS12/24SLENSW
Wall-mount “SMOKE” lens
APA451
Remote annunciator with piezo alarm
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.
ALARM
ALARM
POWER
RESET
APA451
Piezo Annunciator
(UL S4011)
ON
TEST
RTS451KEY
Remote Test Station with
Key (UL S2522)
F
I
R
E
ALARM
RESET
PA400
with PS24LOW Add-on
Strobe (PS12/24SLENSW
smoke lens option available)
(UL S3593)
RTS451
Remote Test Station
(UL S2522)
System Sensor Canada
Ph: 905.812.0767
Fx: 905.812.0771
System Sensor in China
Ph: 011.86.29.524.6253
Fx: 011.86.29.524.6259
System Sensor– Far East
Ph: 011.852.2191.9003
Fx: 011.852.2736.6580
System Sensor UK
Ph: 011.44.1403.276500
Fx: 011.44.1403.276501
System Sensor in Singapore
Ph: 011.65.273.2230
Fx: 011.65.273.2610
System Sensor– Australia
Ph: 011.613.54.281.142
Fx: 011.613.54.281.172
RA400Z
Remote
Annunciator
(UL S2522)
System Sensor Sales and Service
System Sensor Headquarters
3825 Ohio Avenue
St. Charles, IL 60174
Ph: 800-SENSOR2
Fx: 630/377-6495
Documents On Demand
1-800-736-7672 x3
www.systemsensor.com
© 1999 System Sensor. The company reserves the right to change product specifications without notice.
A05-976-02•10/99(10K)•#554