SS-300-023
1
I56-3641-001R
D2-AUS Duct Smoke Detector
INSTALLATION AND MAINTENANCE INSTRUCTIONS
3825 Ohio Avenue, St. Charles, Illinois 60174
www.systemsensor.com
Table of Contents
Page
[1] Limitations of Duct Smoke Detectors . . . . . . . . . . . . . . . . . . . . . . . . .1
[2] General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
[3] Contents of the Duct Smoke Detector Kit . . . . . . . . . . . . . . . . . . . . . .1
[4] Exploded View of Duct Smoke Detector Components . . . . . . . . . . . . .2
[5] Detector Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
[6] Sampling Tube Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
[7] Measurement Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
[8] Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
[9] Detector Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
[10] Verification of Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
[11] Dectector Cleaning Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
[12] Sensor Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
[13] Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4,6
Warranty
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
The D2-AUS model is a photoelectric detector approved for an extended air
speed range of
0.5 m/s to 20.3 m/s
(100 to 4000 feet per minute) and an op-
erational temperature range of −20°C to 70°C (−4°F to 158°F).
BEfORE INSTALLINg
Read the System Sensor Guide for
Proper Use of Smoke Detectors in Duct Appli-
cations
(A05-1004), which provides detailed information on detector spacing,
placement, zoning, wiring, and special applications. Copies of this manual
are available online at www.systemsensor.com. Also refer to the installation
requirements of local standards.
NOTICE:
This manual shall be left with the owner/user of this equipment.
IMPORTANT:
This detector must be tested and maintained regularly following
local regulations. The detector should be cleaned at least once a year.
WARNING
The National Fire Protection Association has established that DUCT DETEC-
TORS MUST NOT BE USED AS A SUBSTITUTE FOR OPEN AREA DETECTOR
PROTECTION as a means of providing life safety. Nor are they a substitute for
early warning in a building’s regular fire detection system.
This device will not operate without electrical power. Fire situations may
cause an interruption of power. The system safeguards should be discussed
with your local fire protection specialist.
This device will not sense smoke unless the ventilation system is operating
and the cover is installed.
For this detector to function properly, it MUST be installed according to the in-
structions in this manual. Furthermore, the detector MUST be operated within
ALL electrical and environmental specifications listed in this manual. Failure
to comply with these requirements may prevent the detector from activating
when smoke is present in the air duct.
[2] gENERAL DESCRIPTION
Smoke introduced into the air duct system will be distributed throughout the
entire building. Smoke detectors designed for use in air duct systems are used
to sense the presence of smoke in the duct.
Model D2-AUS Duct Smoke Detector utilizes photoelectric technology for the
detection of smoke. This detection method, when combined with an efficient
housing design, samples air passing through the duct allowing detection of a
developing hazardous condition. When sufficient smoke is sensed, an alarm
signal is initiated and appropriate action can be taken to shut off fans,
blowers, change over air handling systems, etc. These actions can facilitate
the management of toxic smoke and fire gases throughout the areas served
by the duct system.
[2.1] DETECTOR fEATURE SET
- Utilizes 2151 or 2151BAUS plug-in detector head
- Sampling tubes installed from front or rear
- Compatible with existing accessories
[3] CONTENTS Of ThE DUCT SMOkE DETECTOR kIT
1. Sensor/power board assembly and covers
2. Three #10 sheet metal screws for mounting
3. One test magnet
4. Drilling template
5. One sampling tube end cap
6. One plastic exhaust tube
NOTE: A sampling tube must be ordered to complete the installation. It must
be the correct length for the width of the duct where it will be installed. See
Table 1 on page 3 to determine the inlet tube required for different duct widths.
I56-364
1-00
1R
SPECIfICATIONS
Operating Temperature:
–20° to 70° C (–4° to 158° F)
Storage Temperature:
–30° to 70° C (–22° to 158° F)
Humidity:
0% to 93% Relative Humidity Non-condensing
Air Velocity:
0.5 to 20.3 m/sec. (100 to 4000 ft./min.)
Rectangular Footprint Dimensions:
37 cm L x 12.7 cm W x 6.36 cm D (14.38 in L x 5 in W x 2.5 in D)
Square Footprint Dimensions:
19.7 cm L x 22.9 cm W x 6.35 cm D (7.75 in L x 9 in W x 2.5 in D)
Weight:
0.82 kg; 1.8 pounds
Electrical
Power supply voltage:
8.5-35 VDC
Input capacitance:
0.1 µF max.
Reset Voltage:
2.5 VDC min.
Reset Time (with RTS451/RTS151):
.03 to 0.3 sec.
Reset Time (by power down):
0.3 sec. max.
Power Up Time:
35 sec. max.
Alarm response time:
15 sec.
Nominal Sensitivity:
4.0% obs/m
Current Requirements (Using No Accessories)
Peak standby current
120µA
Average standby current
60µA
Max. alarm current
130 mA
ACCESSORY CURRENT LOADS AT 24 VDC
DEVICE
STANDBY
ALARM
RA400Z/RA100Z
0mA
12mA Max.
RTS451/RTS151
0mA
12mA Max.
RTS451KEY/RTS151KEY
0mA
12mA Max.
[1] LIMITATIONS Of DUCT SMOkE DETECTORS
