System Sensor 7351A Installation And Maintenance Instructions Manual

CAUTION

UL Listed Compatible

Control Panel

TENS ONES

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INSTALLATION AND MAINTENANCE INSTRUCTIONS

7351A
Intelligent High-sensitivity

6581 Kitimat Road, Unit 6, Mississauga, Ontario L5N-3T5

Photoelectric Smoke Sensor

SPECIFICATIONS

Operating Voltage Range: 15 to 32 VDC
Operating Current @ 24 VDC: 300 uA (one communication every 5 seconds with green LED blink on communication)
Maximum Alarm Current: 2 mA @ 24 VDC (one communication every 5 seconds with red LED solid on)
Maximum Current: 4.5 mA @ 24 VDC (one communication every 5 seconds with amber LED solid on)
Operating Humidity Range: 10% to 93% Relative Humidity, Non-condensing
Operating Temperature Range: 14°F to 140°F (-10°C to 60°C)
Air Velocity: 0 to 4000 ft./min. (0 to 1219.2 m/min.)
Height: 2.0˝ (51 mm) installed in B300A-6 Base
Diameter: 6.2˝ (156 mm) installed in B300A-6 Base; 4.1˝ (104 mm) installed in B501 Base
Weight: 3.4 oz. (95 g)
Isolator Load Rating: 0.0063*

*Please refer to your isolator base/module manual for isolator calculation instructions.

CAN/ULC S529 listed for Open Air Protection (0.5%/ft. to 2.0%/ft. obscura­tion), Special Application (0.02%/ft. to 0.5%/ft. obscuration) and Duct Ap­plications (0.5%/ft. to 2.0%/ft. obscuration).
This sensor must be installed in compliance with the control panel system
installation manual. The installation must meet the requirements of the Au­thority Having Jurisdiction (AHJ). Sensors offer maximum performance when
installed in compliance with CAN/ULC S524.

GENERAL DESCRIPTION

Model 7351A is a plug-in type smoke sensors that combines a photoelectronic
sensing chamber with addressable-analog communications providing sensi­tivities from 0.02% per foot to 2% per foot obscuration for Early Warning Fire
Detection (EWFD) or Very Early Warning Fire Detection (VEWFD).

The sensors transmit an analog representation of smoke density over a com­munication line to a control panel. Rotary dial switches are provided for set­ting the sensor’s address. (See Figure 1.)

FIGURE 1. ROTARY ADDRESS SWITCHES:

WIRING GUIDE

All wiring must be installed in compliance with the Canadian Electrical Code,
applicable local codes, and any special requirements of the Authority Having
Jurisdiction. Proper wire gauges should be used. The installation wires should
be color-coded to limit wiring mistakes and ease system troubleshooting. Im­proper connections will prevent a system from responding properly in the
event of a fire.

Remove power from the communication line before installing sensors.

1. Wire the sensor base (supplied separately) as shown in the wiring
diagram. (See Figure 2.)

2. Set the desired address on the sensor address switches. (See Figure 1.)

3. Install the sensor into the sensor base. Push the sensor into the base while
turning it clockwise to secure it in place.

4. After all sensors have been installed, apply power to the control panel and
activate the communication line.

5. Test the sensor(s) as described in the TESTING section of this manual.

I56-9131-001

800/736-7672, FAX: [phone]

www.systemsensor.ca

Two LEDs on the sensor are controlled by the panel to indicate sensor status.
An output is provided for connection to an optional remote LED annunciator
(P/N RA100ZA).

System Sensor panels offer different features sets across different models. As a
result, certain features of the photoelectric sensors may be available on some
control panels, but not on others. 7351A will support only CLIP (Classic Loop
Interface Protocol) mode. The possible features available in the photoelectric
sensors, if supported by the control panel are:

1. The sensor’s LEDs can operate in three ways—on, off, and blinking–and
they can be set to red, green, or amber. This is controlled by the panel.

2. The remote output may be synchronized to the LED operation or con­trolled independent of the LEDs.

3. Devices are point addressable up to 159 addresses.

Please refer to the operation manual for the UL listed control panel for specific
operation. The photoelectric sensors require compatible addressable com­munications to function properly. Connect these sensors to listed-compatible
control panels only.

SPACING

System Sensor recommends spacing sensors in compliance with CAN/ULC
S524. In low air flow applications with smooth ceilings, space sensors 30 feet
apart (9.1 m). For specific information regarding sensor spacing, placement,
and special applications, refer to CAN/ULC S524 or the System Smoke Detec­tor Application Guide, available from System Sensor.

NOTE: Intelligent High-sensitivity Photoelectric smoke sensors are also listed
for use inside DNRA duct smoke detectors.

1 I56-9131-001
07/27/2018

Dust covers provide limited protection against airborne dust particles during
shipping. Dust covers must be removed before the sensors can sense smoke.

C0162-00

Remove sensors prior to heavy remodeling or construction.

FIGURE 2. WIRING DIAGRAM:

CAUTION: Do not loop wire under
terminal 1 or 2. Break wire run to
supervise connections.

+

+

2

–

RA

1

3

+

+

2

–

RA

1

3

C0129-10

(+)

(–)

(–)

(+)

Remote

Annunciator

+ -

+

+

2

–

RA

1

3

CLASS A OPTIONAL WIRING

TAMPER-RESISTANCE

Intelligent High-sensitivity Photoelectric smoke sensors include a tamper-re­sistant capability that prevents their removal from the base without the use of
a tool. Refer to the base manual for details on making use of this capability.

TESTING

CAUTION

Alignment

Before testing, notify the proper authorities that the system is undergoing
maintenance, and will temporarily be out of service. Disable the system to
prevent unwanted alarms.

All sensors must be tested after installation and periodically thereafter. Test­ing methods must satisfy the Authority Having Jurisdiction (AHJ). Sensors
offer maximum performance when tested and maintained in compliance with
CAN/ULC S536.

The sensor can be tested in the following ways:

A. Functional: Magnet Test (P/N M02-04-01 or M02-09-00)

This sensor can be functionally tested with a test magnet. The test magnet

electronically simulates smoke in the sensing chamber, testing the sensor
electronics and connections to the control panel.

1. Hold the test magnet in the magnet test area as shown in Figure 3.

2. The sensor should alarm the panel.

Two LEDs on the sensor are controlled by the panel to indicate sensor

status. Coded signals, transmitted from the panel, can cause the LEDs to
blink, latch on, or latch off. Refer to the control panel technical documen­tation for sensor LED status operation and expected delay to alarm.

B. Smoke Entry

Sensitivity readings are available through the FACP. Refer to the manufac-

turer’s published instructions for proper use.

Additionally, canned aerosol simulated smoke (canned smoke agent) may

be used for smoke entry testing of the smoke detector. Tested and ap­proved aerosol smoke products include:

Manufacturer Model

HSI Fire and Safety 25S, 30S (PURCHECK)

SDi SMOKE CENTURIAN, SOLOA4,

SMOKESABRE, TRUTEST

No Climb TESTIFIRE 2000

When used properly, the canned smoke agent will cause the smoke detec-

tor to go into alarm. Refer to the manufacturer’s published instructions for
proper use of the canned smoke agent.

Canned aerosol simulated smoke (canned smoke agent) formulas will vary
by manufacturer. Misuse or overuse of these products may have long term
adverse effects on the smoke detector. Consult the canned smoke agent manu­facturer’s published instructions for any further warnings or caution statements.

A sensor that fails any of these tests may need to be cleaned as described
under CLEANING, and retested.

When testing is complete, restore the system to normal operation and notify
the proper authorities that the system is back in operation.

CLEANING

Before removing the detector, notify the proper authorities that the smoke
detector system is undergoing maintenance and will be temporarily out of
service. Disable the zone or system undergoing maintenance to prevent un­wanted alarms.

1. Remove the sensor to be cleaned from the system.

2. Remove the sensor cover by pressing firmly on each of the four removal
tabs that hold the cover in place. (See Figure 4.)

3. Vacuum the screen carefully without removing it. If further cleaning is
required continue with Step 4, otherwise skip to Step 7.

4. Remove the chamber cover/screen assembly by pulling it straight out.

5. Use a vacuum cleaner or compressed air to remove dust and debris from
the sensing chamber.

6. Reinstall the chamber cover/screen assembly by sliding the edge over the
sensing chamber. Turn until it is firmly in place.

7. Replace the cover using the LEDs to align the cover and then gently push­ing it until it locks into place.

8. Reinstall the detector.

9. Test the detector as described in TESTING.

10. Reconnect disabled circuits.

11. Notify the proper authorities that the system is back on line.

SPECIAL NOTE REGARDING SMOKE DETECTOR GUARDS

Smoke detectors are not to be used with detector guards unless the combina­tion has been evaluated and found suitable for that purpose.

FIGURE 3: FEATURES OF THE PHOTO DETECTOR

Magnet

Test

Marker

Base

Notch

LED

Base Alignment Notch

Magnet Test Marker

LED

C2021-00

FIGURE 4: CLEANING THE PHOTO DETECTOR

Sensor Cover

Cover

Removal

Tabs

Sensing Chamber

Cover and Screen

Sensing Chamber

C2022-00

Please refer to insert for the Limitations of Fire Alarm Systems

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference,
and (2) this device must accept any interference received, including interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there
is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and receiver.
– Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
– Consult the dealer or an experienced radio/TV technician for help.
This Class B digital apparatus complies with Canadian ICES-003.

System Sensor® is a registered trademark of Honeywell International, Inc.

FCC STATEMENT

2 I56-9131-001
©2018 System Sensor. 07/27/2018

DEVICE AND SYSTEM SECURITY

Before installing this product ensure that the
tamper seal on the packaging is present and
unbroken and the product has not been tampered
with since leaving the factory. Do not install this
product if there are any indications of tampering.
If there are any signs of tampering the product
should be returned to the point of purchase.
It is the responsibility of the system owner to
ensure that all system components, i.e. devices,
panels, wiring etc., are adequately protected to
avoid tampering of the system that could result
in information disclosure, spoofing, and integrity
violation.