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: 310/457-5813.
F300-27-00
5
I56-1975-004R
BREAKAWAY STOP
Figure 7. Rotary Address Switches
H0138-00