P/N 3102362-EN • REV 01 • ISS 06APR16    1 of 2 
 
SIGA-PD Intelligent 
Photoelectric Smoke Detector 
Installation Sheet 
 
 
Description 
The Signature Series model SIGA-PD Intelligent Photoelectric Smoke 
Detector is an intelligent device that uses an optical sensing chamber 
to detect smoke. The detector analyzes data from the sensing 
chamber to determine whether to initiate an alarm. 
LED indicator. The LED indicator (see Figure 1 below) displays the 
following states: 
•  Normal: Green LED indicator flashes, no action. 
•  Alarm/active: Red LED indicator flashes, evacuate the area. 
Figure 1: SIGA-PD features 
2
 
(1) Self-locking tab 
(2) LED indicator 
Installation  
Notes 
•  This detector does not operate without electrical power. As fires 
frequently cause power interruption, discuss further safeguards 
with the local fire protection specialist. 
•  This detector does not sense fires in areas where smoke cannot 
reach the detector. Smoke from fires in walls, roofs, or on the 
opposite side of closed doors may not reach the detector. 
•  Photoelectric detectors have a wide range of fire-sensing 
capabilities and are best suited for detecting slow, smoldering fires. 
•  To ensure proper operation, store the detector within the 
recommended ranges. Allow the detector to stabilize to room 
temperature before applying power. 
•  The dust cover (supplied) must remain on the detector during 
installation and be removed prior to commissioning and service. 
The dust cover is not a substitute for removing the detector during 
new construction or heavy remodeling. 
•  Do not use smoke detectors with detector guards unless the 
combination has been evaluated and found suitable. 
•  In Canada, install according to CAN/ULC-S524 Standard for the 
Installation of Fire Alarm Systems, CSA C22.1 Canadian Electrical 
Code, and the local authority having jurisdiction. 
•  Upon completion of the original installation and following any 
modifications or additions to the system, perform a calibrated 
sensitivity test per NFPA code. The Signature Series devices can 
perform this test and the panel can generate a system sensitivity 
report. 
To install the detector: 
1.  Install and wire the base, as described on the installation sheet 
supplied with the base. 
2.  Remove the serial number label from the detector and attach it to 
the project documentation. 
3.  Attach the detector to the base by rotating the detector clockwise 
until it snaps into the locked position. 
Testing 
Before testing, notify the proper authorities that the fire alarm system is 
undergoing maintenance and will be temporarily out of service. 
To perform an initial installation test: 
1.  Remove the detector from its base and verify that the proper 
detector address, trouble signals, and messages are reported. 
2.  For SIGA-PD detectors placed in the air ducts, verify that the 
airflow is within specifications. See “Specifications” on page 2. 
3.  If wired for Class A operation, verify that the detector continues to 
operate first with SLC_IN disconnected, and then with SLC_OUT 
disconnected. (Refer to the installation sheet for the base.) 
4.  Place a momentary ground fault on the SLC circuit to verify 
operation of ground fault detection circuitry. 
5.  Run a system detector sensitivity report on all detectors and verify 
that the readings fall within acceptable limits. 
6.  Perform a sensor function test, as described below. 
To perform a sensor function test: 
1.  If desired, use the fire alarm control panel to put the detector or 
zone into a service group for testing. (Refer to the panel technical 
reference manual for instructions.)