Installation Sheet
18AUG05
P/N: 3100686 REV: 2.0
SuperDuct Four-Wire Smoke Sensor (RJ-45 version)
3 / 3
Airflow
Sampling tube
opening
Exhaust tube
opening
HVAC duct
Sampling
tube
Air pressure
differential
meter
Figure 4: Air pressure differential measurement
Note:
To measure air pressure differential, you must have a suitable
air pressure differential meter (supplied by the installer) and an SD-
VTK Air Velocity Test kit.
Sensor to controller wiring
Connect the sensor to the controller as shown in Figure 5. Make sure
the cable grommets are seated securely into their respective openings.
First sensor
Controller
Optional second sensor
RJ-45 cable assembly
(ordered separately)
RJ-45 cable assembly
(ordered separately)
J1
J1
J1
J2
Figure 5: Controller to sensor wiring diagram
RJ-45 cable assemblies are available in the lengths listed below.
Model Description
SD-RJ5
RJ-45 wiring harness kit (5 ft)
SD-RJ10
RJ-45 wiring harness kit (10 ft)
SD-RJ15
RJ-45 wiring harness kit (15 ft)
Note:
If strain relief is required, secure the cable assembly using the
cable clamps provided in the cable kit.
Testing
After completing the installation, test the sensor to ensure that it is
operating correctly before leaving the site. For details, refer to
Technical Bulletin P/N 3100685.
