Edwards Signaling E-PD User Manual

1. Insert screwdriver here

1. Breakaway tab

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 selfdiagnostics 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.

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)

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, s ched ule ma inte nan ce (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.

Figure 2: Breakaway tab

Maintenance

1. Slot to insert screwdriver

3. Detector body

4. Optical block base

Communication line voltage

Normal operating current

Alarm current

Smoke sensitivity range

Environmental compensation

Compatible bases

Maximum distance from ceiling wall

Storage temperature

Operating environment

Manufacturer Year of manufacture

North American standards

Cleaning the detector

When cleaning is necessary, the sensing chamber of the detector unsnaps for easy field cleaning and service.

To clean the detector:

1. Remove the detector from the base.

2. Insert a screwdriver in the small slot where the detector cap connects to the detector body. See Figure 3.

3. Pry the detector cap off the detector body.

4. Squeeze the optical block chamber where the two arrows point, labeled “squeeze here.”

5. Pull off the optical block chamber.

6. Blow off the optical block base in the detector body using clean compressed air.

7. Snap a new optical block chamber in place. Make sure you line up the two arrows on the block chamber with the snaps on the optical block base.

8. Connect the detector cap to the detector body by rotating the cap clockwise until it snaps into a locked position.

9. Install the detector onto the base.

Note: To verify the effectiveness of the cleaning,

recalibrate the device and run a device maintenance report. Refer to the technical reference manual.

10. Test the detector and verify sensitivity.

Figure 3: Detector disassembly

To test the detector:

1. Before initial testing, remove the dust cover from the detector and notify the proper authorities that the fire alarm system is undergoing maintenance and will be temporarily out of service.

2. Test the detector using Smoke-In-A-Can (model SM-200) canned smoke. Carefully follow directions on the can to avoid damage to the detector.

Specifications

Maximum 20 V peak-to-peak

45 µA

UL ULC

-mounted

−4 to 140°F (−20 to 60°C)

Temperature Humidity

0.67 to 3.66%/ft. obscuration

0.74 to 3.70%/ft. obscuration

Automatic

Standard: B4U, B4U-LP Relay: RB4U Isolator: IB4U Audible: SB4U

12 in. (305 mm)

32 to 120°F (0 to 49°C) 0 to 93% RH, noncondensing at 90°F (32°C)

Optical block chamber

5. Detector cap

Test

NFPA 72 and CAN/ULC-S537 require a calibrated sensitivity test upon completion of the original installation and following any modifications or additions to the system. The detector can perform this test and generate a system sensitivity re port.

Certification and compliance

Edwards, A Division of UTC Fire & Security Americas Corporation, Inc. 8985 Town Center Parkway, Bradenton, FL 34202, USA

The first two digits of the date code (located on the product identification label) are the year of manufacture.

Meets: UL 268, ULC-S529-02, Follow: NFPA 72, and CAN/ULC-S524

Contact information

For contact information, see our Web site: www. edwardssignaling.com.

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