DSD120 Duct Smoke Detector
INSTALLATION AND MAINTENANCE INSTRUCTIONS
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] Detector Status Indication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
[10] Interconnection (Multiple Fan Shut Down). . . . . . . . . . . . . . . . . . . . . 5
[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 the
Applications Guide for Duct Smoke Detectors
, which provides informa-
tion on detector spacing, placement, zoning, wiring, and special applications.
This manual is available online at www.greystoneenergy.com. NFPA Standards
72, 90A, and CAN/ULC S524 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 or CAN/ULC S536 requirements. The detector should be cleaned at
least once a year.
I56-92
01-000
SPECIFICATIONS
Operating Temperature:
–4° to 158° F (–20° to 70° C)
Storage Temperature:
–22° to 158° F (–30° to 70° C)
Humidity:
0% to 95% Relative Humidity Non-condensing
Air Velocity:
100 to 4000 ft./min. (0.5 to 20.3 m/sec.)
DSD120 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)
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)
DSD120 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 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 contacts (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)
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.
[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.
Greystone Energy supports this position and strongly recommends that the user
read NFPA Standards 90A, 72, 101, and CAN/ULC S524. The DSD120 Air Duct
Smoke Detectors are listed per CAN/ULC S529 and 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
instructions 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.
150 English Drive, Moncton, NB E1E 4G7 Canada
Tel: +1-506-853-3057 Fax: +1-506-853-6014
www.greystoneenergy.com
ACCESSORY CURRENT LOADS AT 24 VDC
DEVICE
STANDBY
TROUBLE
ALARM
APA151
12.5mA
n/a
30mA Max.
MHR(A)/MHW(A)
0mA
n/a
29mA Max.
RA100Z(A)
0mA
n/a
12mA Max.
RTS151
0mA
n/a
12mA Max.
RTS151KEY(A)
12mA
n/a
12mA Max.
Only (A) models are ULC listed .
IN-GE-DSD120-01-01 1
I56-9201-000
5/6/2019
