DUCT SMOKE DETECTOR
DH100ACDCLP
Purpose/Application
National and local safety standards and codes recognize
the ability of air duct systems to transfer smoke, toxic
gases, and flame from area to area. Sometimes smoke can
be of such quantity as to be a serious hazard to life safety
unless blowers are shut down and dampers are actuated.
The primary purpose of duct smoke detection is to prevent
injury, panic, and property damage by reducing the spread
(recirculation) of smoke. The detector samples air currents
passing through a duct and gives dependable performance
for management of smoke and combination fire smoke
dampers. Duct smoke detection can also serve to protect the
air conditioning system itself from fire and smoke damage.
There are several important documents that provide guidance
concerning the performance, application and installation of
duct detectors:
1) NFPA Standard 90A, Installation of Air Conditioning
and Ventilating Systems
2) NFPA Standard 92A, Recommended Practice for
Smoke Control Systems
3) NFPA Standard 72, National Fire Alarm Code
4) NFPA Standard 101, Life Safety Code
5) UL Standard 268A, Standard for Smoke Detectors for
Duct Applications
6) ASHRAE Handbook and Product Directory, “Fire and
Smoke Control”
7) System Sensor, Guide for Proper Use of Smoke
Detectors in Duct Applications.
Duct 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.
Configuration
Maximum wall thickness: 6 in. (152mm) on FSD & SSFSD
applications
(Consult factory for walls greater
than 6 in. [152mm])
Specifications
Type: Photoelectric
Air duct velocity: 100 to 4000 fpm (.5 m/s to
20.3 m/s)
Actuator Location: Must be right hand drive
Must be externally mounted
Operating temperature range: 32°F to 131°F (0°C to 55°C)
Operating humidity range: 10% to 93% R.H.
Operation Voltage: 24 VAC/DC or
120/240 VAC
Detector Location: Mounts opposite actuator side
Must be external
Sampling tubes longer than three feet must be supported
on each end. Holes in duct smoke detector sampling tubes
must face into the airflow.
Features
• Textured cover for convenient visual inspection.
• The detector provides a trouble signal in the event that the
front cover is removed.
• Integral filter system included to reduce dust and residue
effects on detector and housing, thereby reducing
maintenance and servicing.
Availability
For use with all FSD, SSFSD, SMD, SSSMD, and CFSD
models. Not available on SMDR models.
• Terminal connections are of the strip and clamp method
suitable for 12-18 AWG wiring.
Listings
• Outside mounting tabs for easy connection to sleeve or
ductwork (when detector ships loose).
UL 268A
Refer to Greenheck Installation Supplement: Part #463813 IOM-Smoke Detector Supplement
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SPACE ENvELOPES
ELECTRiCAL RATiNgS
Dampers Less Than 25 inches (635mm) in Height
Typical Actuator
(ML series shown; other
actuators available)
3 in.
3
6
⁄4 in.
Single Point Wiring (Standard)
Smoke detector, actuator, and all
control options are prewired to
junction box at the factory.
Dampers Equal To Or greater Than 25 inches (635mm) in Height
2 3/4 in.
(70mm)
Typical Actuator
(other actuators available)
15 in.
(381mm)
Single Point Wiring
(Standard): Smoke
detector, actuator, and
all control optiong are
prewired to junction box
at the factory.
Electrical Ratings
Power Supply Voltage: 20-29 VDC
24 VAC 50-60 Hz
270 µF max.
120 VAC 50-60 Hz 220/240 VAC 50-60 Hz
Input Capacitance:
Reset Voltage:
Reset Time:
Power Up Time:
Alarm Response Time:
Sensitivity Test:
270 µF max.
3.0 VDC min.
0.6 sec. max.
34 sec. max.
2-17 sec.
N/A
N/A
2.0 VAC min.
0.6 sec. max.
34 sec. max.
2-17 sec.
10 VAC min.
0.6 sec. max.
34 sec. max.
2-17 sec.
20 VAC min.
0.6 sec. max.
34 sec. max.
2-17 sec.
See detector label
See detector label
See detector label
See detector label
Current Requirements
Max. Standby Current:
Max. Alarm Current:
15 mA
70 mA
35 mA RMS
125 mA RMS
25 mA RMS*
35 mA RMS*
15 mA RMS*
25 mA RMS*
Contact Ratings
Alarm Initiation Contacts (SPST):
2.0A @ 30 VAC/DC (0.6 power factor)
Alarm Auxiliary Contacts (DPDT):
10A @ 30 VDC
10A @ 250 VDC
Note:
Alarm auxiliary contacts must switch 100 mA minimum at 5 VDC. Alarm auxiliary contacts shall not be connected
to initiating circuits of control panels. Use the alarm initiation contact for this purpose.
Trouble Contacts (SPDT):
2.0A @ 30 VDC (resistive)
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WiRiNg DiAgRAMS
DUCT SMOKE DETECTOR
Fusible Link
RED
DH100ACDCLP DUCT DETECTOR
1
2
3
4
5
6
7
8
9
10
A
B
C
24 VAC/VDC
11 12 13 14 15 16 17 18 19 20
BLUE
RED
DH100ACDCLP DUCT DETECTOR
1
2
3
4
5
6
7
8
9
10
A
B
C
L1
L2
115 VAC
11 12 13 14 15 16 17 18 19 20
RED
BLUE
DH100ACDCLP DUCT DETECTOR
MOTOR
OPTIONAL
SECOND MOTOR
220/240 VAC
1
2
3
4
5
6
7
8
9
10
A
B
C
11 12 13 14 15 16 17 18 19 20
MOTOR
OPTIONAL
THIRD MOTOR
BLUE
MOTOR
1. CONDUIT RUNS WHICH EXCEED 72" MUST HAVE GREEN GROUND WIRE.
2. FLEX CONDUIT MUST BE SECURED WITH A CONDUIT CLAMP (458296) WITHIN 12" OF CONDUIT TERMINATION AT THE HANDI-BOX OR ACTUATOR. CONDUIT RUNS MUST ALSO BE
SECURED ALONG SLEEVE AT A MAXIMUM OF 24" ON CENTER.
OCI
RED
DH100ACDCLP DUCT DETECTOR
THE OCI WIRES MUST BE CHECKED TO VERIFY WHICH SET INDICATES THE CLOSED POSITION OF
DAMPER. THIS SET OF WIRES SHOULD THEN BE LABELED WITH A BLUE WIRE MARKER (382169).
OCI
1
2
3
4
5
6
7
8
9
10
A
B
C
24 VAC/VDC
11 12 13 14 15 16 17 18 19 20
BLUE
SWITCH #2
SWITCH #1
RED
DH100ACDCLP DUCT DETECTOR
1
2
3
4
5
6
7
8
9
10
A
B
C
L1
L2
115 VAC
11 12 13 14 15 16 17 18 19 20
RED
BLUE
DH100ACDCLP DUCT DETECTOR
MOTOR
OPTIONAL
SECOND MOTOR
220/240 VAC
1
2
3
4
5
6
7
8
9
10
A
B
C
11 12 13 14 15 16 17 18 19 20
MOTOR
OPTIONAL
THIRD MOTOR
BLUE
MOTOR
1. CONDUIT RUNS WHICH EXCEED 72" MUST HAVE GREEN GROUND WIRE.
2. FLEX CONDUIT MUST BE SECURED WITH A CONDUIT CLAMP (458296) WITHIN 12" OF CONDUIT TERMINATION AT THE HANDI-BOX OR ACTUATOR. CONDUIT RUNS MUST ALSO BE
SECURED ALONG SLEEVE AT A MAXIMUM OF 24" ON CENTER.
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WiRiNg DiAgRAMS
DUCT SMOKE DETECTOR
RRL
RED
DH100ACDCLP DUCT DETECTOR
RRL
1
2
3
4
5
6
7
8
9
10
A
B C
24 VAC/VDC
11 12 13 14 15 16 17 18 19 20
BLUE
RED
DH100ACDCLP DUCT DETECTOR
1
2
3
4
5
6
7
8
9
10
A
B
C
115 VAC
L1
L2
11 12 13 14 15 16 17 18 19 20
RED
BLUE
DH100ACDCLP DUCT DETECTOR
MOTOR
OPTIONAL
SECOND MOTOR
220/240 VAC
1
2
3
4
5
6
7
8
9
10
A
B
C
11 12 13 14 15 16 17 18 19 20
MOTOR
OPTIONAL
THIRD MOTOR
BLUE
MOTOR
1. CONDUIT RUNS WHICH EXCEED 72" MUST HAVE GREEN GROUND WIRE.
2. FLEX CONDUIT MUST BE SECURED WITH A CONDUIT CLAMP (458296) WITHIN 12" OF CONDUIT TERMINATION AT THE HANDI-BOX OR ACTUATOR. CONDUIT RUNS MUST ALSO BE
SECURED ALONG SLEEVE AT A MAXIMUM OF 24" ON CENTER.
RRL/OCI
RED
DH100ACDCLP DUCT DETECTOR
THE OCI WIRES MUST BE CHECKED TO VERIFY WHICH SET INDICATES THE CLOSED POSITION OF
DAMPER. THIS SET OF WIRES SHOULD THEN BE LABELED WITH A BLUE WIRE MARKER (382169).
RRL
1
2
3
4
5
6
7
8
9
10
A
B
C
24 VAC/VDC
11 12 13 14 15 16 17 18 19 20
BLUE
SWITCH #2
SWITCH #1
RED
DH100ACDCLP DUCT DETECTOR
1
2
3
4
5
6
7
8
9
10
A
B
C
115 VAC
L1
L2
11 12 13 14 15 16 17 18 19 20
RED
BLUE
DH100ACDCLP DUCT DETECTOR
MOTOR
OPTIONAL
SECOND MOTOR
220/240 VAC
1
2
3
4
5
6
7
8
9
10
A
B
C
11 12 13 14 15 16 17 18 19 20
MOTOR
OPTIONAL
THIRD MOTOR
BLUE
MOTOR
1. CONDUIT RUNS WHICH EXCEED 72" MUST HAVE GREEN GROUND WIRE.
2. FLEX CONDUIT MUST BE SECURED WITH A CONDUIT CLAMP (458296) WITHIN 12" OF CONDUIT TERMINATION AT THE HANDI-BOX OR ACTUATOR. CONDUIT RUNS MUST ALSO BE
SECURED ALONG SLEEVE AT A MAXIMUM OF 24" ON CENTER.
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WiRiNg DiAgRAMS
DUCT SMOKE DETECTOR
TOR
RED
THE OCI WIRES MUST BE CHECKED TO VERIFY WHICH SET INDICATES THE CLOSED POSITION OF
DAMPER. THIS SET OF WIRES SHOULD THEN BE LABELED WITH A BLUE WIRE MARKER (382169).
DH100ACDCLP DUCT DETECTOR
TOR
1
2
3
4
5
6
7
8
9
10
A
B
C
24 VAC/VDC
11 12 13 14 15 16 17 18 19 20
BLUE
SWITCH #2
SWITCH #1
RED
SWITCHING DEVICE
(BY OTHERS)
DH100ACDCLP DUCT DETECTOR
(OVERRIDE)
1
2
3
4
5
6
7
8
9
10
A
B
C
L1
115 VAC
(PRIMARY)
11 12 13 14 15 16 17 18 19 20
L2
RED
BLUE
DH100ACDCLP DUCT DETECTOR
MOTOR
OPTIONAL
SECOND MOTOR
220/240 VAC
1
2
3
4
5
6
7
8
9
10
A
B
C
11 12 13 14 15 16 17 18 19 20
MOTOR
OPTIONAL
THIRD MOTOR
BLUE
MOTOR
1. CONDUIT RUNS WHICH EXCEED 72" MUST HAVE GREEN GROUND WIRE.
2. FLEX CONDUIT MUST BE SECURED WITH A CONDUIT CLAMP (458296) WITHIN 12" OF CONDUIT TERMINATION AT THE HANDI-BOX OR ACTUATOR. CONDUIT RUNS MUST ALSO BE
SECURED ALONG SLEEVE AT A MAXIMUM OF 24" ON CENTER.
OCI w/ EP Switch
RED
DH100ACDCLP DUCT DETECTOR
THE OCI WIRES MUST BE CHECKED TO VERIFY WHICH SET INDICATES THE CLOSED POSITION OF
DAMPER. THIS SET OF WIRES SHOULD THEN BE LABELED WITH A BLUE WIRE MARKER (382169).
OCI
1
2
3
4
5
6
7
8
9
10
A
B
C
24 VAC/VDC
11 12 13 14 15 16 17 18 19 20
BLUE
SWITCH #2
SWITCH #1
RED
DH100ACDCLP DUCT DETECTOR
1
2
3
4
5
6
7
8
9
10
A
B
C
L1
L2
115 VAC
11 12 13 14 15 16 17 18 19 20
E/P SWITCH
RED
BLUE
DH100ACDCLP DUCT DETECTOR
RED
RED
RED
RED
OPTIONAL
SECOND E/P SWITCH
220/240 VAC
1
2
3
4
5
6
7
8
9
10
A
B
C
11 12 13 14 15 16 17 18 19 20
E/P SWITCH
RED
OPTIONAL
THIRD E/P SWITCH
BLUE
E/P SWITCH
RED
1. CONDUIT RUNS WHICH EXCEED 72" MUST HAVE GREEN GROUND WIRE.
2. FLEX CONDUIT MUST BE SECURED WITH A CONDUIT CLAMP (458296) WITHIN 12" OF CONDUIT TERMINATION AT THE HANDI-BOX OR ACTUATOR. CONDUIT RUNS MUST ALSO BE
SECURED ALONG SLEEVE AT A MAXIMUM OF 24" ON CENTER.
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WiRiNg DiAgRAMS
RRL W/ EP Switch
DUCT SMOKE DETECTOR
RED
DH100ACDCLP DUCT DETECTOR
RRL
1
2
3
4
5
6
7
8
9
10
A
B
C
24 VAC/VDC
11 12 13 14 15 16 17 18 19 20
BLUE
RED
DH100ACDCLP DUCT DETECTOR
1
2
3
4
5
6
7
8
9
10
A
B
C
115 VAC
L1
L2
11 12 13 14 15 16 17 18 19 20
E/P SWITCH
RED
BLUE
DH100ACDCLP DUCT DETECTOR
RED
RED
RED
RED
OPTIONAL
SECOND E/P SWITCH
220/240 VAC
1
2
3
4
5
6
7
8
9
10
A
B C
11 12 13 14 15 16 17 18 19 20
E/P SWITCH
RED
BLUE
OPTIONAL
THIRD E/P SWITCH
E/P SWITCH
RED
1. CONDUIT RUNS WHICH EXCEED 72" MUST HAVE GREEN GROUND WIRE.
2. FLEX CONDUIT MUST BE SECURED WITH A CONDUIT CLAMP (458296) WITHIN 12" OF CONDUIT TERMINATION AT THE HANDI-BOX OR ACTUATOR. CONDUIT RUNS MUST ALSO BE
SECURED ALONG SLEEVE AT A MAXIMUM OF 24" ON CENTER.
RRL/OCI W/ EP Switch
RED
THE OCI WIRES MUST BE CHECKED TO VERIFY WHICH SET INDICATES THE CLOSED POSITION OF
DAMPER. THIS SET OF WIRES SHOULD THEN BE LABELED WITH A BLUE WIRE MARKER (382169).
DH100ACDCLP DUCT DETECTOR
RRL
1
2
3
4
5
6
7
8
9
10
A
B
C
24 VAC/VDC
11 12 13 14 15 16 17 18 19 20
BLUE
SWITCH #2
SWITCH #1
RED
DH100ACDCLP DUCT DETECTOR
1
2
3
4
5
6
7
8
9
10
A
B
C
115 VAC
L1
L2
11 12 13 14 15 16 17 18 19 20
RED
E/P SWITCH
BLUE
DH100ACDCLP DUCT DETECTOR
RED
RED
RED
RED
OPTIONAL
SECOND E/P SWITCH
220/240 VAC
1
2
3
4
5
6
7
8
9
10
A
B
C
11 12 13 14 15 16 17 18 19 20
E/P SWITCH
RED
BLUE
OPTIONAL
THIRD E/P SWITCH
E/P SWITCH
RED
1. CONDUIT RUNS WHICH EXCEED 72" MUST HAVE GREEN GROUND WIRE.
2. FLEX CONDUIT MUST BE SECURED WITH A CONDUIT CLAMP (458296) WITHIN 12" OF CONDUIT TERMINATION AT THE HANDI-BOX OR ACTUATOR. CONDUIT RUNS MUST ALSO BE
SECURED ALONG SLEEVE AT A MAXIMUM OF 24" ON CENTER.
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WiRiNg DiAgRAMS
DUCT SMOKE DETECTOR
TOR w/ EP Switch
RED
DH100ACDCLP DUCT DETECTOR
THE OCI WIRES MUST BE CHECKED TO VERIFY WHICH SET INDICATES THE CLOSED POSITION OF
DAMPER. THIS SET OF WIRES SHOULD THEN BE LABELED WITH A BLUE WIRE MARKER (382169).
TOR
1
2
3
4
5
6
7
8
9
10
A
B C
24 VAC/VDC
11 12 13 14 15 16 17 18 19 20
BLUE
SWITCH #2
SWITCH #1
RED
SWITCHING DEVICE
(BY OTHERS)
DH100ACDCLP DUCT DETECTOR
(OVERRIDE)
1
2
3
4
5
6
7
8
9
10
A
B
C
L1
115 VAC
(PRIMARY)
11 12 13 14 15 16 17 18 19 20
L2
E/P SWITCH
RED
BLUE
RED
RED
RED
RED
DH100ACDCLP DUCT DETECTOR
OPTIONAL
SECOND E/P SWITCH
220/240 VAC
1
2
3
4
5
6
7
8
9
10
A
B C
11 12 13 14 15 16 17 18 19 20
E/P SWITCH
RED
OPTIONAL
THIRD E/P SWITCH
BLUE
E/P SWITCH
RED
1. CONDUIT RUNS WHICH EXCEED 72" MUST HAVE GREEN GROUND WIRE.
2. FLEX CONDUIT MUST BE SECURED WITH A CONDUIT CLAMP (458296) WITHIN 12" OF CONDUIT TERMINATION AT THE HANDI-BOX OR ACTUATOR. CONDUIT RUNS MUST ALSO BE
SECURED ALONG SLEEVE AT A MAXIMUM OF 24" ON CENTER.
Copyright © 2008 Greenheck Fan Corporation
DH100 Smoke Detector Rev. 6 May 2008
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