System Sensor D4120W - Manual

SS-300-010 1 I56-3046-004R
d4120W duct Smoke detector
inSTaLLaTion and mainTenance inSTrucTionS
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
www.systemsensor.com
TabLe of conTenTS Page
[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] Unit Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
[10] Detector Status Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
[11] Interconnection (Multiple Fan Shut Down). . . . . . . . . . . . . . . . . . . . . 6
[12] Verification of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
[13] Detector Cleaning Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
[14] Sensor replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
[15] Optional Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
before inSTaLLing
To maintain the watertight properties of this duct smoke detector, watertight
conduit and fittings must be used. Mount the product with the conduit holes
facing downwards, if possible. Read the System Sensor Guide for Proper Use of
Smoke Detectors in Duct Applications (A05-1004), which provides information
on detector spacing, placement, zoning, wiring, and special applications. This
manual is available online at www.systemsensor.com. NFPA Standards 72 and
90A should also be referenced for detailed information.
I56-3
046-004R
NOTE: The D4120W duct detector consists of a Power Board and Sensor component.
SPecificaTionS
Operating Temperature: –4° to 158° F (–20° to 70° C)
Storage Temperature: –22° to 158° F (–30° to 70° C)
Environmental Rating: NEMA 4* Type 4 Enclosure — Watertight
Humidity: 0% to 95% Relative Humidity Non-condensing
Air Velocity: 100 to 4000 ft./min. (0.5 to 20.3 m/sec.)
D4120W Footprint Dimensions: Rectangular - 14.38 in L x 5 in W x 2.5 in D (37cm L x 12.7cm W x 6.36cm D)
Square - 7.75 in L x 9 in W x 2.5 in D (19.7cm L x 22.9cm W x 6.35cm D)
D4120W Weight: 2.5 pounds; 1.14 kg
Electrical
Power supply voltage:
20-29 VDC 24 VAC 50-60-Hz 120 VAC 50-60 Hz
Input capacitance: 270 µF max. 270 µF max. N/A
Reset Voltage: 3.0 VDC min. 2.0 VAC min. 10 VAC min.
Reset Time (with RTS451/RTS151): .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.
Power Up Time: 35 sec. max. 35 sec. max. 35 sec. max.
Alarm response time: 15 sec. 15 sec. 15 sec.
Sensitivity Test: See detector label See detector label See detector label
Current Requirements (Using No Accessories)
Max. standby current
21 mA @ 24 VDC 65 mA RMS @ 24VAC 60Hz 20 mA RMS @ 120 VAC 60 Hz
Max. alarm current 65 mA @ 24 VDC 135 mA RMS @ 24 VAC 60 Hz 35 mA RMS @ 120 VAC 60 Hz
CONTACT RATINGS
Alarm initiation contacts (SPST) 2.0A @ 30 VDC (resistive)
Alarm auxiliary contatcs (DPDT) 10A @30 VDC (resistive)
10A @250 VAC (resistive)
1 /
2
HP @240 VAC
1 /
4
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)
2.0A @ 30 VDC (resistive)
2.0A @ 125 VAC (resistive)
ACCESSORY CURRENT LOADS AT 24 VDC
DEVICE
STANDBY TROUBLE ALARM
APA151/APA451 12.5mA n/a 30mA Max.
MHR/MHW 0mA n/a 29mA Max.
RA400Z/RA100Z 0mA n/a 12mA Max.
RTS451/RTS151 0mA n/a 12mA Max.
RTS451KEY/RTS151KEY 12mA n/a 12mA Max.
RTS2 3mA Max. 16mA Max. 30mA Max.
RTS2-AOS 3mA 16mA Max. 55mA Max.
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.
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.
[1] LimiTaTionS of ducT Smoke deTecTorS
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.
System Sensor supports this position and strongly recommends that the user
read NFPA Standards 90A, 72, and 101. The D4120W Air Duct Smoke Detec-
tors 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.