Fire-Lite Alarms D350PL Installation And Maintenance Instructions Manual
F300-27-00 1 I56-1975-003R
Fire•Lite Alarms, Inc., One Fire-Lite Place, Northford, CT 06472, 203-484-7161
Before installing detectors, please thoroughly read the NEMA Guide for Proper Use of Smoke Detectors in Duct Applications, which provides detailed
information on detector spacing, placement, zoning, wiring, and special applications. 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 informa-
tion.
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 system is distributed to the entire
building. Smoke detectors designed for use in air duct systems are used to sense the presence of smoke in the duct.
The D350PL 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 condition. 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, blowers 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 indication. There is also a remote
alarm output for use with auxiliary devices. The D350PL has remote test capability with the RTS451/RTS451KEY Remote Test Station.
CONTENTS OF THE DUCT SMOKE DETECTOR HOUSING KIT
The D350PL Duct Smoke Detector consists of the following items: (See Figure 1.)
D350PL INTELLIGENT PHOTOELECTRONIC DUCT SMOKE DETECTOR
WITH EXTENDED AIR SPEED RANGE
INSTALLATION AND MAINTENANCE INSTRUCTIONS
Figure 1: Exploded View Of Duct Smoke Detector Components
NOTE: For ducts over 11⁄2 (0.46m) feet, 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 assembly with
sensor
2. Two #10 x 11⁄4″ 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
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
[10] Board Replacement
[10.1] Sensor Board Replacement
1. Remove the two sensor board mounting screws.
2. Pull gently on the board to remove it.
3. To replace the board, align the board mounting features, holes, and the interconnect terminals. Push the board
into place.
4. Secure board with the two mounting screws.
[10.2] Power Board Replacement
1. Disconnect wiring from the terminal block.
2. Remove the two power board mounting screws.
3. Pull gently on the board to remove it.
4. To replace the board, align the board mounting features, holes, and the interconnect terminals. Push the board
into place.
5. Secure board with the two mounting screws.
6. Re-connect wiring to terminal block.
[11] Model D350PL Air Duct Smoke Detector Specifications
Operating Voltage Range 15 to 32 VDC
Standby Current
300 µA @ 24 VDC (one communication every 5 seconds with LED blink enabled)
Operating Temperature Range 32° to 131°F (0° to 55°C)
Storage Temperature Range -22° to 158°F (-30° to 70°C)
Humidity Range 10% to 93% (non-condensing)
Air Velocity 100 to 4000 ft/min (0.5 to 20.32 m/sec)
Dimensions 143⁄8″ L x 51⁄2″ W x 23⁄4″ D (37 cm L x 14 cm W x 7 cm D)
Programming Specifications/Requirements for Intelligent System Control Panels
There are a limited number of devices that can have their LEDs programmed to illuminate. The actual number of devices is
determined by the control panel and its ability to supply LED current. Refer to the Control Panel Installation Manual for details.
Accessories Part No.
Remote LED RA400Z
Magnetic Remote Test RTS451
Key-Activated Remote Test RTS451KEY
Replacement Filters F36-09-11
Replacement Test Magnet M02-04-00
Replacement Photo Insect Screen S08-39-01
Replacement End Cap for Plastic Sampling Tube P48-61-00
Replacement End Cap for Metal Sampling Tubes P48-21-00
Replacement Photoelectric Sensor Board A5053FL
Replacement Power Board (w/o relay) A5067
F300-27-00 8 I56-1975-003R
© 2004 Fire • Lite Alarms
FCC Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this
device must accept any interference received, including interference that may cause undesired operation.
Note:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and receiver.
– Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
– Consult the dealer or an experienced radio/TV technician for help.
To keep your equipment in excellent working order, ongoing maintenance is required per the manufacturer’s recommendations and UL and NFPA standards. At a minimum,
the requirements of Chapter 7 of NFPA 72, the National Fire Alarm Code, shall be followed. A preventative maintenance agreement should be arranged through the local
manufacturer’s representative. Though smoke detectors are designed for long life, they may fail at any time. Any smoke detector, fire alarm equipment, or any component
of that system which fails shall be repaired or replaced as soon as possible.
Please refer to insert for the Limitations of Fire Alarm Systems
H0100-00
I56-1975-003R
F300-27-00 2 I56-1975-003R
WARNING
LIMITATIONS OF DUCT DETECTORS
WARNING
The National Fire Protection Association has established that DUCT DETECTORS 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 sys-
tem.
It is strongly recommended that the user read NFPA Standards 90A, 72, and 101.
WARNING
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.
WARNING
This device will not sense smoke unless the ventilation system is operating.
WARNING
In order to function properly, this detector must be installed according to the instructions. Do not exceed the electrical or ambient specifications or the
detector will not function properly. This detector must be protected from the elements.
INSTALLATION SEQUENCE
Step 1. Verify duct air flow direction and velocity .....................................................................................................................................................2
Step 2. Drill the mounting holes ...............................................................................................................................................................................2
Step 2.1 Install the sampling tube for ducts less than 11⁄2 feet (0.46m) wide .............................................................................................................2
Step 3. Secure the detector housing to the duct ......................................................................................................................................................3
Step 4. Install the sampling tube for ducts greater than 11⁄2 feet (0.46m) wide .......................................................................................................3
Step 4.1 Installation for ducts greater than 11⁄2 feet (0.46m) but less than 8 feet (2.4m) wide ................................................................................3
Step 4.2 Installation for ducts more than 8 feet (2.4m) wide ....................................................................................................................................4
Step 5. Install the filters ............................................................................................................................................................................................4
Step 6. Field wiring ...................................................................................................................................................................................................4
Step 7. Perform detector check ................................................................................................................................................................................5
Step 8. Install the cover ............................................................................................................................................................................................5
Step 9. Detector Maintenance and Test Procedures ................................................................................................................................................5
[1] Verify Duct Air Flow Direction And Velocity
The D350PL duct smoke detector is designed to be used in air handling systems having air velocities of 100 to 4000 feet per minute (0.5 to 20.32m/s).
Be sure to check engineering specifications to ensure that the air velocity in the duct falls within these parameters. If necessary, use a velocity meter
to check the air velocity in the duct.
[2] Drill The Mounting Holes
Remove the paper backing from the mounting template supplied. Affix the template to the duct at the desired mounting location. Make sure the template lies flat and smooth on the duct. Center punch holes A and B. Drill the holes as indicated on the template.
[2.1] Sampling Tube Installation for Ducts Less Than 11⁄2 Feet (0.46m) Wide (see Figur e 2)
1. Remove the front cover.
2. Slide the plastic sampling tube into the housing bushing and extend it the full width of
the duct.
3. Align the holes in the bushing with the holes in the sampling tube. Secure with the #8
self-tapping screw into the bottom of the permanent tube.
NOTE: For ducts greater than 11⁄2 feet (0.46m) in width, refer to sections [4], [4.1] and
[4.2].
[3] Secure The Detector Housing To The Duct
Slide the foam gaskets over the tube bushings as shown in Figure 3. Use the two 11⁄4″ long
sheet metal screws to screw the detector housing to the duct.
CAUTION: Do not overtighten the screws.
Figure 2. Plastic sampling tube
connected to duct smoke detector
F300-27-00 7 I56-1975-003R
[9.2.2] Alarm Tests
[9.2.2.1] M02-04-00 Magnet Test
1. Place the painted surface of the magnet onto the TEST locator
on the bottom of the detector housing (Figure 12).
2. Verify system control panel alarm status and control panel execution of
all intended auxiliary functions (i.e. fan shutdown, damper control, etc.)
3. The detector is self-restoring when the magnet is removed.
Verify that the system control panel has reset.
[9.2.2.2] RTS451/RTS451KEY Remote Station Test
The RTS451/RTS451KEY Remote Test Station facilitates test of the alarm
capability of the duct smoke detector. These accessories provide the
stimulus to initiate an alarm condition at the detector. The detector is
self-restoring when the accessory test stimulus is removed.
Verify that the system control panel has reset.
[9.2.3] Sensitivity Tests
Notify the proper authorities that the smoke detector system is undergoing maintenance, and that the system will temporarily be out of service. Disable
the device or system undergoing maintenance to prevent unwanted alarms and possible dispatch of the fire department.
[9.3] Maintenance of Duct Smoke Detectors
[9.3.1] Air Filters
1. Turn off power to the system.
2. Remove and inspect sampling tube filters.
3. If filters are heavily coated with dirt, replace them with new filters (p/n F36-09-11). If they are not heavily coated,
use a vacuum cleaner or compressed air nozzle to remove dust, then reinstall the filters.
[9.3.2] Photo Detector Boards
1. Remove the screen by gently grasping on each side and pulling straight off
2. Lift the photo chamber in the same fashion. Vacuum the screen and cover. Use clean, compressed air to loosen and
blow out any remaining debris. Replacement screens (p/n S08-39-01) are available.
3. Vacuum photo chamber, then use clean compressed air to blow area clean.
4. Replace the chamber by pressing it onto the base. Press the screen into place. It should fit tightly on the chamber.
Figure 12. Testing detector alarm:
H0137-00
Figure 10. Wiring Diagram for D350PL Duct Detector
with optional RA400Z
Figure 11. System Wiring Diagram for D350PL Duct
Smoke Detector with RTS451/RTS451KEY
TEST
RA400Z
RTS451
KEY
COMMON
COM(+)
COM(-)
RA400Z
COMMON
D350PL
RTS451/RTS451KEY
TEST
RTS451
KEY
COM(+)
COM(-)
4
5 6
1
2 3
FIELD INSTALLED
JUMPER
COMMON
TEST
LED RESET
FOR RTS451, TERMINAL 3 IS NOT USED.
(RTS451 DOES NOT HAVE A TERMINAL 6.)
FOR RTS451KEY, TERMINALS 3 AND 6
ARE NOT USED.
Accessory Current Loads at 24VDC
DEVICE STANDBY ALARM
RA400Z 0mA 10 mA Max.
RTS451/RTS451KEY 0mA 7.5 mA Max.
TEST
RA400Z
RTS451
KEY
COMMON
COM(+)
COM(-)
RA400Z
COMMON
DH350PL
+
RA400Z
H0110-00
H0102-00 H0101-00
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