Edwards Signaling E-PD - Manual

© 2013 UTC Fire & Security. All rights reserved. 1 / 2 P/N 3101207 • REV 03 • REB 28JAN13
E-PD Photoelectric Smoke Detector
Installation Sheet
Operation
The E-PD Photoelectric Smoke Detector uses an optical
sensing chamber to detect smoke. The detector analyzes the
sensor data to determine whether to initiate an alarm. The
detector is capable of performing comprehensive self-
diagnostics and storing the results. The detector continuously
monitors changes in sensitivity due to the environment (e.g.,
dirt, smoke, temperature, humidity) and notifies the loop
controller of its condition. The detector issues a dirty sensor
warning when it reaches its preset limit. This notifies the
operator of the need for service while the detector is still
operating.
LED operation
The detector provides a bicolor LED that shows its status.
Normal: Green LED flashes
Alarm/active: Red LED flashes
Installation
Refer to Edwards Signaling Smoke and Heat Detectors
Applications Bulletin (P/N 3101212) for additional information
on detector placement and spacing.
WARNINGS
• 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 sensing
capabilities, but are best suited for detecting slow,
smoldering fires.
• To ensure proper operation, schedule maintenance
(regular or selected) in accordance with the requirements
of the authority having jurisdiction. Refer to NFPA 72 and
CAN/ULC-S536.
• To ensure proper operation, store the detector within the
recommended ranges. Allow the detector to stabilize to
room temperature before applying power.
• Keep the dust cover (supplied) on the detector during
installation and remove it prior to commissioning and
service. The dust cover is not a substitute for removing the
detector during new construction or heavy remodeling.
To install the detector:
1. Install and wire the detector base using the installation
sheet supplied with the detector base.
2. Set the detector address. Refer to the panel technical
reference manual for a list of valid addresses. Use a
screwdriver to adjust the two rotary switches on the back
of the detector. See Figure 1.
3. Set the left rotary switch (0 through 12) for the 10s and
100s digit and the right rotary switch for the 0 through 9
digit.
4. Connect the detector to the base by rotating the detector
clockwise until it snaps into the locked position.
The head can be removed by turning it counterclockwise.
5. If the head must lock to the base, break away the locking
tab using a pair of pliers. See Figure 2.
To then remove the detector head after breaking away the
locking tab, insert a small screwdriver into the slot on the
side of the base and press in while simultaneously turning
the detector head counterclockwise.
Figure 1: Setting detector address (address 32 shown)
1. Insert screwdriver here
Figure 2: Breakaway tab
1
0 1
2
3
4
5 6
12
11
10
9
8 7
0 9
1
2
3
4 5
6
7
8
1. Breakaway tab