F300-28-00
5
I56-1974-006R
Panels offer different feature sets across different panel models. As a result, certain features of the D350RPL may be available on some
control panels, but not on others. The possible features available in the D350RPL, 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 continuous, 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 D350RPL.
Wiring Instructions
Disconnect power from the communication line before installing the D350RPL duct smoke detectors.
Wire the D350RPL 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, remove
the breakaway stop on the left hand rotary switch. Using pliers, carefully twist and pull off stop 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
contained in this manual were devised to assist maintenance personnel in verifica-
tion 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 handler 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 differential 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.
[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 Flow 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 1000
Ω
resistor. 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 1000
Ω
resistor (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 1000
Ω
resistor (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 detec-
tor for proper operation.
BREAKAWAY STOP
Figure 7. Rotary Address Switches
H0112-00