Fire-Lite Alarms D350PL User 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 11⁄2feet (0.46m) wide.............................................................................................................2
Step 3. Secure the detector housing to the duct......................................................................................................................................................3
Step 4. Install the sampling tube for ducts greater than 11⁄2feet (0.46m) wide .......................................................................................................3
Step 4.1 Installation for ducts greater than 11⁄2feet (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 tem-
plate 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 11⁄2Feet (0.46m) Wide (see Figure 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 11⁄2feet (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(-)
45 6
12 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

[4] Sampling Tube Installation for Ducts Greater Than 11⁄2 Feet
(0.46m) Wide
The sampling tube is identified by a series of air inlet holes on the tube.
A plastic tube is included for ducts up to 11⁄2feet (0.46m) wide. All other
lengths must be purchased separately. Order the correct length, as speci-
fied in Table 1, for width of the duct where it will be installed. It is recom-
mended that the sampling tube length extend at least 2⁄3across the duct
width for optimal performance. The exhaust tube is molded onto the base
of the duct housing, and the A2440-00 Exhaust Tube Extension is avail-
able as an accessory in those cases where the molded exhaust port does
not extend at least 2 inches into the duct.
The sampling tube is always installed with the air inlet holes facing into
the air flow. To assist proper installation, the tube’s mounting flange is
marked with an arrow. Make sure the sampling tube is mounted so that
the arrow points into the air flow (see Figure 4). Figure 5 shows the
various combinations of tube mounting configurations with respect to air
flow. Mounting the detector housing in a vertical orientation is acceptable,
provided that a metal sampling tube is used and the air flows directly into
the sampling tube holes as indicated in Figure 4.
[4.1] Installation For Ducts Greater Than 11⁄2Feet (0.46m) But
Less Than 8 Feet (2.4m) Wide
1. If the tube is longer than the width of the air duct, drill a
3⁄4
″(19mm) hole
in the duct opposite the hole already cut for the sampling tube. Make
sure the hole is 1″to 2″(25 to 50 mm) below the sampling hole on
the opposite side of the duct to allow moisture drainage away from the
detector. If the tube is shorter than the width of the air duct, install the
end cap into the sampling tube as shown in Figure 4. Sampling tubes
over 3 ft. (0.91m) long must be supported at the end opposite the duct
smoke detector.
2. Slide the tube into the housing bushing that meets the air flow first.
Position the tube so that the arrow points into the air flow, as shown
in Figure 4.
3. Secure the tube flange to the housing bushing with two #6 self-tapping
screws.
4. For tubes longer than the width of the air duct, the tube should extend
out of the opposite side of the duct. If there are more than 2 holes in the
section of the tube extending out of the duct, select a different length
using Table 1. Otherwise, trim the end of the tube protruding through
the duct so that 1 ″ to 2 ″ (25 to 50mm) of the tube extend outside the
duct. Plug this end with the end cap and tape closed any holes in the
protruding section of the tube. Be sure to seal the duct where the tube
protrudes.
NOTE: The sampling tube end cap is critical to the proper operation of
the duct smoke detectors. The end cap is needed to create the
proper air flow to the sensor of the duct smoke detector.
F300-27-00 3 I56-1975-003R
SCREW HOLES FOR
ATTACHING HOUSING
TO DUCT WORK.
Figure 3. Installation of foam gaskets over sampling
tube bushings:
Figure 5. Tube mounting configurations with varying
air flow direction:
Table 1. Sampling tubes recommended for different
duct widths:
Outside Duct Width Sampling Tube Recommended*
1 to 2 ft. (0.3 to 0.6 m) ST-1.5
2 to 4 ft. (0.6 to 1.2 m) ST-3
4 to 8 ft. (1.2 to 2.4 m) ST-5
8 to 12 ft. (2.4 to 3.7 m) ST-10
*Must extend a minimum of 2⁄3the duct width.
SAMPLING
TUBE
END CAP
AIR HOLES
ARROW
MUST FACE
INTO AIR FLOW
AIR FLOW DIRECTION
FLANGE
Figure 4. Air duct detector sampling tube:
H0108-02
AIR FLOW
DIRECTION
DETECTOR
HOUSING
DOTS INDICATE POSITION OF
SAMPLING TUBE HOLES
AIR FLOW
DIRECTION
DETECTOR
HOUSING
SAMPLING
TUBE
EXHAUST
TUBE
AIR FLOW
DIRECTION
EXHAUST
TUBE
SAMPLING
TUBE
SAMPLING
TUBE
EXHAUST
TUBE
DETECTOR
HOUSING
AIR FLOW
DIRECTION
DETECTOR
HOUSING
A. B.
C. D.
HORIZONTAL MOUNTING OF HOUSING
VERTICAL MOUNTING OF HOUSING
NOTE: Only metal sampling tubes can be installed in
orientations C and D.
H0107-00
H0109-01
[9.1.3] Smoke Entry Test
To determine if smoke is capable of entering the sensing chamber, visually identify any obstructions. Plug the exhaust and sampling tube holes
to prevent ducted air from carrying smoke away from the detector head, then blow smoke such as cigarette, cotton wick, or punk directly at the
head to cause an alarm. REMEMBER TO REMOVE THE PLUGS AFTER THIS TEST, OR THE DETECTOR WILL NOT FUNCTION PROPERLY.
[9.1.4] Air Flo Test Using Dwyer Series 607 Differential Pressure Transmitter
Verify the air speed of the duct using an anemometer. Air speed must be at least 100 FPM. Wire the Dwyer transmitter as shown in Figure 8. Connect
the leads of the meter to either side of the 1000Ωresistor. Allow unit to warm up for 15 seconds. With both HIGH and LOW pressure ports open to
ambient air, measure and record the voltage drop across the 1000Ωresistor (measurement 1), 4.00 volts is typical. Using flexible tubing and rubber
stoppers, connect the HIGH side of the transmitter to the sampling tube of the duct smoke detector housing, and the LOW side of the transmitter to
the exhaust tube of the duct smoke detector housing. Measure and record the voltage drop across the 1000Ωresistor (measurement 2). Subtract the
voltage recorded in measurement 1 from the voltage recorded in measurement 2. If the difference is greater than 0.15 volts, there is enough air flow
through the duct smoke detector for proper operation.
[9.1.5] Filter Replacement
The filters do not substantially affect smoke performance even when up to 90% of the filter is clogged. Quarterly visual inspection usually suffices to
determine whether the filters should be replaced because only a high percentage of contamination affects performance. If further testing is required,
compare differential pressure readings with and without the filters installed. If the difference exceeds 10% replace the filters. In no case should the
pressure differential fall below 0.0015 inches of water.
[9.2.1] Standby Alarm, And Sensitivity Tests
[9.2.1] Standby And Trouble
Standby — If programmed by the system control panel, look for the presence of the flashing LEDs through the transparent housing cover. The
LED will flash with each communication.
Trouble — If programmed by the system control panel and the detector LEDs do not flash, then the detector lacks power (check wiring, panel
programming, or power supply), the detector board is missing (replace), or the unit is defective (return for repair).
Test — The trouble condition can be caused intentionally to verify correct operation of the system. Remove the detector board to cause a
trouble condition locally and at the system control panel.
F300-27-00 6 I56-1975-003R
Figure 8. Procedure for verifying air flow:
DIFFERENTIAL
PRESSURE
TRANSMITTER
MODEL #607-01
HIGH LOW
TO SAMPLING TUBE
TO EXHAUST TUBE
VOLT METER
FLUKE MODEL 87
OR EQUIVALENT
1000 OHM 5% 1 WATTRESISTOR
9 VOLT
BATTERY
9 VOLT
BATTERY
9 VOLT
BATTERY
15 TO 36VDC
SUPPLY
Figure 9. Wiring Diagram for D350PL Duct Smoke Detector using a UL listed control panel
TEST
RA400Z
RTS451 KEY
COMMON
COM(+)
COM(–)
TEST
RA400Z
RTS451 KEY
COMMON
COM(+)
COM(–)
+
–
COM (+)
COM (–) COM (+)
COM (–)
COMMUNICATION
LINE
UL LISTED CONTROL
PANEL
1ST DETECTOR
IN LOOP
2ND DETECTOR
IN LOOP
H0105-00
H0136-01

[4.2] Installation For Ducts More Than 8 Feet (2.4m) Wide
NOTE: To install sampling tubes in ducts more than 8 feet (2.4m) wide, work must be performed inside the air duct. Sampling of air in ducts wider
than 8 feet (2.4m) is accomplished by using the ST-10 sampling tube. If the tube is shorter than the width of the air duct, install the end cap
into the sampling tube as shown in Figure 4 and support the end opposite the duct smoke detector.
Install the sampling tube as follows:
1. Drill a 3⁄4-inch (19mm) hole in the duct directly opposite the hole already drilled for the sampling tube. Make sure the hole is 1″to 2″(25 to 50mm)
below the inlet hole on the opposite side of the duct to allow for moisture drainage.
2. Slide the sampling tube with the flange into the housing bushing that meets the air flow first. Position the tube so that the arrow points into the air
flow. Secure the tube flange to the housing bushing with two #6 self-tapping screws.
3. From inside the duct, couple the other sections of the sampling tube to the section already installed using the 1⁄2-inch (12mm) conduit fittings sup-
plied. Make sure that the holes on both of the sampling tubes are lined up and facing into the air flow.
4. Trim the end of the tube protruding through the duct so that 1″to 2″(25 to 50mm) of the tube extend outside the duct. Plug this end with the end
cap and tape closed any holes in the protruding section of the tube. Be sure to seal the duct where the tube protrudes.
NOTE: An alternate method to using the ST-10 is to use two ST-5 sampling tubes. Remove the flange from one of the tubes and install as described
above. After the installation, use electrical tape to close off some of the sampling holes so that there are a total of 10 to 12 holes spaced as
evenly as possible across the width of the duct.
NOTE: Air currents inside the duct may cause excessive vibration, especially when the longer sampling tubes are used. In these cases a 3 inch
(75mm) floor flange (available at most plumbing supply stores) may be used to fasten the sampling tube to the other side of the duct. When
using the flange/connector mounting technique, drill a 1-inch to 11⁄4-inch (25 to 32mm) hole where the flange will be used.
[5] Install The Filters
To install the sampling tube filters, simply push the filters into the sampling and exhaust tube holes, as shown in Figure 6. If a metal sampling tube is
used, install the filters over the tube end.
F300-27-00 4 I56-1975-003R
Figure 6. Sampling tube filter installation:
[6] Field Wiring Installation Guidelines
All wiring must be installed in compliance with the National Electrical
Code and the local codes having jurisdiction. Proper wire gauges should
be used. The conductors used to connect smoke detectors to control
panels and accessory devices should be color-coded to prevent wiring
mistakes. Improper connections can prevent a system from responding
properly in the event of a fire.
CAUTION
Filters require periodic cleaning or replacement, depending on the
amount of dust and dirt accumulated. Visually inspect the filters at
least quarterly; inspect them more often if the dust accumulation
warrants it. See Section [9.1.2] for more information. Replacement
filters can be ordered (filter P/N F36-09-11).
For signal wiring, (the wiring between detectors or from detectors to auxiliary devices), it is usually recommended that single conductor wire be no
smaller than 18 gauge. The duct smoke detector terminals accommodate wire sizes up to 12 gauge. The last foot of conduit should be flexible conduit
(available in electrical supply houses), which facilitates easier installation and puts less strain on the conduit holes in the housing. Solid conduit con-
nections may be used if desired.
Smoke detectors and alarm system control panels have specifications for Signaling-Line Circuit (SLC) wiring. Consult the control panel manufacturer’s
specifications for wiring requirements for the particular model control panel being used before wiring the detector loop.
The D350PL detector is designed for ease of wiring. The housing provides a terminal strip with clamping plates. Wiring connections are made by
stripping about 3⁄8-inch (9mm) of insulation from the end of the wire, sliding the bare end under the plate, and tightening the clamping plate screw.
Two LEDs on each duct smoke detector may light, if programmed by the system control panel, to provide a local, visible indication. Remote LED
annunciator capability is available as an option. Each duct smoke detector can only be wired to one remote accessory.
Fire•Lite panels offer different feature sets across different panel models. As a result, certain features of the D350PL may be available on some control
panels, but not on others. The possible features available in the D350PL, if supported by the control panel are:
Two LEDs on each duct smoke detector may light, if programmed by the system control panel, to provide a local, visible indication. Remote LED
annunciator capability is available as an option. Each duct smoke detector can only be wired to one remote accessory.
Fire•Lite panels offer different feature sets across different panel models. As a result, certain features of the D350PL may be available on some control
panels, but not on others. The possible features available in the D350PL, if supported by the control panel are:
1. Panel controls the LED operation on the duct smoke detector. Operational modes are RED blink, RED continuous, GREEN blink, GREEN continu-
ous, and off.
2. The remote output may be synchronized to the LED operation or controlled independent of the LEDs.
Please refer to the operation manual for the UL listed control panel for specific operation of the D350PL
WIRING INSTRUCTIONS
Disconnect power from the communication line before installing the D350PL duct smoke detectors.
Wire the D350PL duct smoke detector per the Control Panel Installation Manual and Figures 9, 10 or 11. Set the desired address on the sensor board
code wheel address switches.
NOTE: Some panels support extended addressing. In order to set the sensor above address number 99 on compatible systems, carefully remove
the stop on the left hand rotary switch with pliers as shown in Figure 7.
[7] Perform Detector Check
1. Perform STANDBY AND TROUBLE TEST per Section [9.2.1].
2. Perform MAGNET TEST per Section [9.2.2.1]. The RTS451 test of Section [9.2.2.2] may substitute for this requirement.
3. Perform AIR FLOW TEST per Section [9.1].
4. Perform SMOKE RESPONSE TEST per Section [9.1.1].
[8] Install The Cover
Install the cover using the six screws that are captured in the housing cover. Be certain
filters are installed as specified in Section [5]. Make sure that the cover fits into the base
groove and that all gaskets are in their proper positions. Tighten the six screws.
[9] Duct Smoke Detector Maintenance and Test Procedures
Test and maintain duct smoke detectors as recommended in NFPA 72. The tests con-
tained in this manual were devised to assist maintenance personnel in verification of
proper detector operation.
Before conducting these tests, notify the proper authorities that the smoke detection system will be temporarily out of service. Disable the device or
system under test to prevent unwanted alarms.
9.1] Smoke Entry Tests
[9.1.1] Air Flow
This product is designed to operate over an extended air speed range of 100 to 4000 FPM. To verify sufficient sampling of ducted air, turn the air han-
dler on and use a manometer to measure the differential pressure between the two sampling tubes. The differential pressure should measure at least
0.0015 inches of water and no more than 1.2 inches of water. Because most commercially available manometers cannot accurately measure very low
pressure differentials, applications with less than 500 FPM of duct air speed may require one of the following: 1) the use of a current-sourcing pressure
transmitter (Dwyer Series 607) per Section 9.1.4 or; 2) the use of aerosol smoke per section 9.1.2.
[9.1.2] Air Flow Test using Aerosol Smoke
This test is intended for low-flow systems (100-500 FPM). If the air speed is greater than 500 FPM, use a conventional manometer to measure differ-
ential pressure between the sampling tubes, as described in 9.1.1.
Drill a 1⁄4″hole 3 feet upstream from the duct smoke detector. With the air handler on, measure the air velocity with an anemometer. Air speed
must be at least 100 FPM. Spray aerosol smoke* into the duct through the 1⁄4″hole for five seconds. Wait two minutes for the duct smoke
detector to alarm. If the duct smoke detector alarms, air is flowing through the detector. Remove the duct smoke detector cover and blow
out the residual aerosol smoke from the chamber and reset the duct smoke detector. Use duct tape to seal the aerosol smoke entry hole.
*Aerosol smoke can be purchased from Home Safeguard Industries, Malibu, CA. Phone: [phone].
F300-27-00 5 I56-1975-003R
BREAKAWAY STOP
Figure 7. Rotary Address Switches
H0138-00
H0138-00