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400 SeriesTM 4-Wire Duct Smoke Detector
A Division of Pittway 3825 Ohio Avenue, St. Charles, IL 60174 1-800-SENSOR2 (736-7672), Fax 630-377-6495 http://www.systemsensor.com
Models Available
DH400ACDCI Ionization Duct Smoke Detector DH400ACDCA Ionization Detector, ULC Listed DH400ACDCP Photoelectronic Duct Smoke Detector
Features
* * * * * * * * * * * 24 VAC/DC or 120/220 VAC operation Simple change-out of photo or ion detector heads Air velocity rating from 500 to 4000 FPM Powered outputs for remote LED and sounder Remote test station option Remote sounder option Equipped with a DPDT auxiliary relay (two Form C contacts) Easy and quick mounting to round or rectangular ducts from 1 - 12 wide Clear cover for convenient visual inspection UL 268A listed 3-year warranty detector heads allow easy removal for quick cleaning and maintenance, or a change in application without removing the duct housing. The DH400ACDC samples air currents passing through a duct and gives dependable performance for management of fans, blowers, and air conditioning systems. WARNING: Duct smoke detectors have specific limitations. 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. Refer to NFPA 72 and 90A for additional duct detector application information.
System Sensor DH400ACDC 4-wire duct housing will accommodate either the 1451DH ionization sensor or the 2451 photoelectronic sensor. The twist-in, twist-out
Specifications
Length: Width: Depth: Weight: Operating Temperature Range: 14.5 inches (37 cm.) 5 inches (12.7 cm.) 4 inches (10.2 cm.) 4.5 lbs. (2.0 kg.) 32 to 120F (0 to 49C)
APPROVED
Operating Humidity Range: Air Duct Velocity:
10% to 93% relative humidity 500 to 4000 ft./min.
(c) System Sensor 8/96
This document is not intended to be used for installation purposes.
A05-201-02
Architectural/Engineering Specifications
The air duct smoke detector shall be a System Sensor Model DH400ACDC Series Duct Smoke Detector. The detector housing shall be UL listed per UL 268A specifically for use in air handling systems. The detector shall operate at air velocities of 500 feet per minute to 4000 feet per minute. The detector housing shall be equipped with an integral mounting base capable of accommodating either photoelectronic or ionization detector heads. It shall be capable of local testing via magnetic switch or remote testing using the RTS451KEY Remote Test Station. The duct detector housing shall incorporate an airtight smoke chamber in compliance with UL 268A, Standard for Smoke Detectors for Duct Applications. The housing shall be capable of mounting to either rectangular or round ducts without adapter brackets. An integral filter system shall be included to reduce dust and residue effects on detector and housing, thereby reducing maintenance and servicing. Sampling tubes shall be installed after the housing is mounted to the duct by passing through the duct housing. Terminal connections shall be of the strip and clamp method suitable for 14-18 AWG wiring.
DUCT DETECTOR HOUSING
CONDUIT HOLES FOAM GASKETS TUBE END PLUG INLET SAMPLING TUBE (SUPPLIED SEPARATELY)
PC BOARD INSULATOR
DUCT DETECTOR COVER SAMPLING TUBE MOUNTING SCREWS
O-RINGS
DETECTOR BASE HOUSING MOUNTING SCREWS EXHAUST FILTER ADAPTER
Exploded View of DH400ACDC Duct Detector Components
DETECTOR HEAD
TEST MAGNET
SAMPLING TUBE FILTERS
Electrical Ratings - DH400ACDC
Power Supply Voltage 20 - 29 VDC 24 VAC 50 - 60 Hz 120 VAC 50 - 60 Hz 220/240 VAC 50 - 60 Hz CURRENT REQUIREMENTS (USING NO ACCESSORIES) Max. standby current Max. alarm current CONTACT RATINGS Alarm initiation contacts (SPST) Alarm auxiliary contacts (DPDT) 2.0A @ 30 VAC/DC (0.6 power factor) 10A @ 30 VDC 10A @ 277 VAC (0.75 power factor) 240 VA @ 240 VAC (0.4 power factor) 1/8 HP @ 120 VAC 1/4 HP @ 240 VAC
ACCESSORY CURRENT LOADS AT 24 VDC ALARM STANDBY DEVICE APA451 PA400 RA400Z RTS451KEY 12mA MAX 0mA 0mA 0mA* 30mA MAX 15mA MAX 7mA MAX 7mA MAX*
25 mA 95 mA
35 mA RMS 55 mA RMS
20 mA RMS 55 mA RMS
20 mA RMS 30 mA RMS
ANY COMBINATION OF ACCESSORIES MAY BE USED SUCH THAT THE GIVEN CURRENT LOADS TOTAL: 100mA OR LESS IN THE STANDBY STATE, 150mA OR LESS IN THE ALARM STATE.
Trouble contacts (SPST)
0.3A @ 32 VDC (resistive)
*NOTE: WHEN INITIATING AN ALARM, THE RTS451 REQUIRES 71mA MAXIMUM IN PRE-ALARM AND 78mA MAXIMUM IN ALARM. NOMINAL STANDBY CURRENT IS 0mA. ALARM CURRENT IS 7mA MAXIMUM WHEN TEST MAGNET IS REMOVED.
Page 2
A05-201-02
DH400ACDC Wiring Guide
AVAILABLE POWER INPUTS 1 2 12 13 14 1 AVAILABLE POWER INPUTS 2 12 13 14 CONNECT POWER SOURCE TO APPROPRIATE TERMINALS OF EACH DETECTOR. SEE SPECIFICATIONS FOR ADDITIONAL POWER SUPPLY INFORMATION.
24V
120 VAC 220/240 VAC
24V
120 VAC 220/240 VAC
15
ALARM AUXILIARY CONTACTS FOR FAN SHUTDOWN, ETC. 18 19 16 17
ALARM AUXILIARY CONTACTS FOR FAN SHUTDOWN, ETC. 20 15 16 17 18 19 20
FOR WIRING OF AUXILIARY DEVICES, REFER TO MANUFACTURER'S INSTALLATION INSTRUCTIONS OR CONTACT MANUFACTURER.
N.C.
C.
N.O.
N.O.
C.
N.C.
N.C.
C.
N.O.
N.O.
C.
N.C.
ALARM AUXILIARY CONTACTS SHOWN IN STANDBY. CONTACTS TRANSFER DURING ALARM AS INDICATED BY THE ARROWS. TROUBLE CONTACTS 11 10
ALARM AUXILIARY CONTACTS SHOWN IN STANDBY. CONTACTS TRANSFER DURING ALARM AS INDICATED BY THE ARROWS. TROUBLE CONTACTS 11 10
TROUBLE CONTACTS CLOSED IN ALARM AND STANDBY. CONTACTS OPEN WHILE DETECTOR HEAD OR POWER IS REMOVED, AND DURING RESET. OPEN CONTACTS SIGNAL TROUBLE CONDITION TO PANEL.
TROUBLE CONTACTS CLOSED IN ALARM AND STANDBY. CONTACTS OPEN WHILE DETECTOR HEAD OR POWER IS REMOVED, AND DURING RESET. OPEN CONTACTS SIGNAL TROUBLE CONDITION TO PANEL.
8 ALARM INITIATION LOOP ALARM INITIATION CONTACTS 9 CONTACTS SHOWN OPEN IN STANDBY. CONTACTS CLOSE IN ALARM. ALARM INITIATION CONTACTS
8 CONTACTS SHOWN OPEN IN STANDBY. CONTACTS CLOSE IN ALARM. 9
UL LISTED FIRE ALARM CONTROL PANEL
FIRST DETECTOR IN THE LOOP DH400ACDC
LAST DETECTOR IN THE LOOP DH400ACDC
EOL RESISTOR SPECIFIED BY PANEL MANUFACTURER
System Wiring Diagram for DH400ACDC 4-Wire Duct Smoke Detectors Using a UL Listed Control Panel
AVAILABLE POWER INPUTS 1 2 12 13 14
CAUTION: Do not loop wire under terminals. Break wire run to provide supervision of connections.
SEE SPECIFICATIONS FOR ADDITIONAL POWER SUPPLY INFORMATION.
24V
120 VAC 220/240 VAC
ALARM AUXILIARY CONTACTS FOR FAN SHUTDOWN, ETC. 15 FOR WIRING OF AUXILIARY DEVICES, REFER TO MANUFACTURER'S INSTALLATION INSTRUCTIONS OR CONTACT MANUFACTURER. 16 17 18 19 20
N.C.
C.
N.O.
N.O.
C.
N.C.
ALARM AUXILIARY CONTACTS SHOWN IN STANDBY. CONTACTS TRANSFER DURING ALARM AS INDICATED BY THE ARROWS. ALARM INITIATION CONTACTS 9
8
N.O.
TROUBLE CONTACTS CLOSED IN ALARM AND STANDBY. CONTACTS OPEN WHILE DETECTOR HEAD OR POWER IS REMOVED, AND DURING RESET. OPEN CONTACTS SIGNAL TROUBLE CONDITION TO PANEL.
2 1
ALARM COMMON
5 6 7 10 11
(+) ALARM SIGNAL (-) AUX POWER
A78-2353-00
FIELD INSTALLED JUMPER (+) AUX POWER
3
POWER
TROUBLE CONTACTS
Wiring Diagram for DH400ACDC 4-Wire Duct Detector System Equipped Without a Control Panel
5 ALARM SIGNAL (+) (+) ALARM SIGNAL (+) 6 AUX POWER (-) 6 DUCT DETECTOR DH400ACDC (-) RA400Z (OPTIONAL) REMOTE (LED) ANNUNCIATOR RESET (-) 5 ALARM SIGNAL (+) (+) TEST (-) 4 4 3
FIELD INSTALLED JUMPER
APA451 AUDIBLE PIEZO ALERT WITH ALARM AND POWER (TROUBLE) LEDS. FOR STAND ALONE APPLICATIONS ONLY. APA451 RECOMMENDED FOR COMPLIANCE TO NFPA 90A. LOCATE IN NORMALLY OCCUPIED AREA OF PREMISES.
DH400ACDC DUCT DETECTOR
5
1 2
ALARM (+) SIGNAL
5
1 2 4 3 5
RESET TEST
AUX POWER (-) 6 RESET (-)
RESET
AUX POWER (-)
3 4
3
TEST (-)
5 TEST
SUPERVISORY 11 CONTACTS 10
{
AUX POWER (-) 6 DUCT DETECTOR DH400ACDC (-) PA400 (OPTIONAL) AUDIBLE ALERT
DUCT DETECTOR DH400ACDC
RTS451 (OPTIONAL) REMOTE TEST STATION
AUX POWER (+) 7 DH400ACDC Duct Smoke Detector
6
RTS451KEY Remote Test Station
Wiring Diagrams for Optional Accessories
A05-201-02
Page 3
Ordering Information
Part No. DH400ACDCI DH400ACDCA DH400ACDCP 1451DH 2451 Accessories ST-1.5 ST-3 ST-5 ST-10 APA451 RTS451 Description 4-wire ionization duct detector Same as above, Canadian model 4-wire photoelectronic duct detector Replacement ionization sensor head Replacement photoelectronic sensor head Metal sampling tube duct widths 1-2 Metal sampling tube duct widths 2-4 Metal sampling tube duct widths 4-8 Metal sampling tube duct widths 8-12 Annunciator with piezo alarm and power LEDs (see below) Remote test station RTS451KEY MOD400R PA400 RA400Z CRT400 F36-05-00 M02-04-00 P48-21-00 RS14 RS24 R59-18-00 A2650-01 Remote test station with key (see below) Sensitivity test module Piezo sounder Remote annunciator alarm LED Ion cover removal tool Replacement air filters (two per package) Test magnet End cap for metal sampling tubes Ion replacement screen Photo replacement screen Calibrated test card (for photo units only) Replacement installation kit (mounting hardware)
APA451 Annunciator with Piezo Alarm and Power LEDs
RTS451 Remote Test Station
System Sensor Worldwide Distribution
In Canada: System Sensor Canada 6581 Kitimat Road, Unit #7 Mississauga, Ontario Canada L5N 3T5 Telephone: 905-812-0767 Fax: 905-812-0771 Page 4 In the United Kingdom: System Sensor Europe, Ltd. Horsham Gates III, North St. Horsham, West Sussex RH13 5PJ, United Kingdom Telephone: 44-1403-276500 Fax: 44-1403-276501 In India: System Sensor India A-204 Maheshwari Nagar Orkay Mills Lane Andheri East, Mumbai 400093 Telefax: 91-022-8202564 In the Far East: System Sensor Pittway Far East, Ltd. Suite 706, New T&T Centre 7 Canton Road Tsimshatsui, Kowloon, Hong Kong Telephone: 852-2730-9090 Fax: 852-2736-6580 A05-201-02

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