System Sensor DUCTSD240 Installation And Maintenance Instructions Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS
DUCTSD240 Duct Smoke Detector
SPECIFICATIONS
Operating Temperature:
Storage Temperature:
Humidity:
Air Velocity:
DUCTSD240 Footprint Dimensions: Rectangular - 14.38 in L x 4.57 in W x 2.67 in D (37cm L x 11.6cm W x 6.8cm D)
DUCTSD240 Weight:
Electrical
Power supply voltage:
Input capacitance:
Reset Voltage:
Reset Time (with RTS451/RTS151): .03 to 0.3 sec.
Reset Time (by power down):
Power Up Time:
Alarm response time:
Sensitivity Test:
Current Requirements (Using No Accessories)
Max. standby current
Max. alarm current
CONTACT RATINGS
Alarm initiation contacts (SPST)
Alarm auxiliary contacts (DPDT)
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)

TABLE OF CONTENTS

[1] Limitations of Duct Smoke Detectors. . . . . . . . . . . . . . . . . . . . . . . . . . 1
[2] Exploded View of Duct Smoke Detector Components . . . . . . . . . . . . . 2
[3] General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
[4] Contents of Duct Smoke Detector Kit. . . . . . . . . . . . . . . . . . . . . . . . . . 2
[5] Detector Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
[6] Sampling Tube Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
[7] Measurement Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
[8] Field Wiring Installation Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . 4
[9] Detector Status Indication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
[10] Interconnection (Multiple Fan Shut Down). . . . . . . . . . . . . . . . . . . . . 4
[11] Verification of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
[12] Detector Cleaning Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
[13] Sensor Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
[14] Optional Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Detector Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
BEFORE INSTALLING
Read System Sensor's Applications Guide for Duct Smoke Detectors (HVAG53),
which provides information on detector spacing, placement, zoning, wiring,
and special applications. This manual is available online at www.systemsen-
sor.com. NFPA Standards 72 and 90A should also be referenced for detailed
information.
NOTICE: This manual shall be left with the owner/user of this equipment.
IMPORTANT: This detector must be tested and maintained regularly following
NFPA 72 requirements. The detector should be cleaned at least once a year.
-4° to 158° F (-20° to 70° C)
-22° to 158° F (-30° to 70° C)
0% to 95% Relative Humidity Non-condensing
100 to 4000 ft./min. (0.5 to 20.3 m/sec.)
Square - 7.75 in L x 9 in W x 2.67 in D (19.7cm L x 22.9cm W x 6.8cm D)
2.5 pounds; 1.14 kg
20-29 VDC
270 µF max.
3.0 VDC min.
0.6 sec. max.
35 sec. max.
15 sec.
See detector label
21 mA @ 24 VDC
65 mA @ 24 VDC
2.0A @ 30 VDC (resistive)
10A @30 VDC (resistive)
10A @250 VAC (resistive)
1 / HP @240 VAC
2
1 / HP @120 VAC
4
2.0A @ 30 VDC (resistive)
2.0A @ 125 VAC (resistive)
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
65 mA RMS @ 24VAC 60Hz
135 mA RMS @ 24 VAC 60 Hz
ACCESSORY CURRENT LOADS AT 24 VDC
DEVICE
APA151
MHR/MHW
RA100Z
RTS151
RTS151KEY
NOTE: Any combination of accessories may be used such that the given
accessory loads are: 110mA or less at the Aux output, and 50mA or less at the
Alarm output.
PAGE

[1] LIMITATIONS OF DUCT SMOKE DETECTORS

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.
System Sensor supports this position and strongly recommends that the user
read NFPA Standards 90A, 72, and 101. The DUCTSD240 Air Duct Smoke De-
tectors are listed per UL 268A.
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.
1
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
www.systemsensor.com
240 VAC 50-60 Hz
N/A
10 VAC min.
.03 to 0.3 sec.
0.6 sec. max.
35 sec. max.
15 sec.
See detector label
10 mA RMS @ 240 VAC 60 Hz
18 mA RMS @ 240 VAC 60 Hz
STANDBY TROUBLE
12.5mA n/a
0mA n/a
0mA n/a
0mA n/a
12mA n/a
WARNING
ALARM
30mA Max.
29mA Max.
12mA Max.
12mA Max.
12mA Max.
I56-4260-002R
06-10