System Sensor DH200PL - Manual

3825 Ohio Avenue, St. Charles, Illinois 60174
800/736-7672, FAX: 630-377-6495
www.systemsensor.com
D200-38-00 1 I56-1976-004R
Before installing detectors, please thoroughly read the
NEMA Guide for Proper Use of Smoke Detectors in Duct
Applications, which provides detailed information on detec-
tor spacing, placement, zoning, wiring, and special appli-
cations. Copies of this manual are available from NEMA
(National Electrical Manufacturers Association, 2101 L
Street NW, Washington, DC 20037). 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.
General Description
An HVAC system supplies conditioned air to virtually every
area of a building. Smoke introduced into this air duct sys-
tem is distributed to the entire building. Smoke detectors
Contents of the Duct Smoke Detector Housing Kit
The DH200PL Duct Smoke Detector consists of the following items: (See Figure 1.)
Figure 1. Exploded View Of Duct Smoke Detector Components:
NOTE: For ducts over 1 1 ⁄
2
feet (0.46m), longer sampling tubes must be ordered to complete the installation. They must
be the correct length for the width of the duct where they will be installed. See Table 1 on page 3 to determine
the sampling tube required for different duct widths.
1. Complete duct smoke detector assem-
bly with sensor
2. Two #10 x 1 1 ⁄
4
″ sheet metal mounting
screws
3. Two sampling tube filters
4. One test magnet
5. Drilling template
6. Two foam gaskets
7. Four #6-self tapping mounting screws
for the sampling tube and optional
exhaust tube extension
8. One sampling tube end cap
9. One plastic sampling tube
10. One #8 self-tapping screw for plastic
sampling tube
NOTE: A detector sensor board DOES
NOT need to be ordered separately.
Contents Of The Duct Smoke Detector
INSTALLATION AND MAINTENANCE INSTRUCTIONS
designed for use in air duct systems are used to sense the
presence of smoke in the duct.
The DH200PL air duct smoke detector is a photoelectric
detector. This smoke detection method combines with an
efficient housing design that samples air passing through a
duct and allows detection of a developing hazardous condi-
tion. When sufficient smoke is sensed, an alarm signal is
initiated at the fire control panel monitoring the detector,
and appropriate action can be taken to shut off fans, blow-
ers and change over air handling systems, etc. This can
prevent the distribution or it can isolate toxic smoke and
fire gases throughout the areas served by the duct system.
Two LEDs on each detector may illuminate, if programmed
by the system control panel, to provide a local alarm indi-
cation. There is also a remote alarm output for use with
auxiliary devices. The DH200PL has remote test capability
with the RTS451/RTS451KEY Remote Test Station.
DH200PL Intelligent Air Duct Smoke Detector
with Extended Air Speed Range
FOAM
GASKETS
PLASTIC
SAMPLING TUBE
SAMPLING TUBE
FILTERS
PLASTIC SAMPLING TUBE
SELF-TAPPING SCREW
DETECTOR
COVER
DETECTOR BOARD
CONDUIT HOLES
DETECTOR
HOUSING
TERMINAL STRIP
POWER BOARD
COVER MOUNTING
SCREWS
H0456-00