NOTIFIER FSP-751 Intelligent Photoelectronic Smoke Sensors Instruction Manual

Intelligent Photoelectronic Smoke Sensors

Model: FSP-751 and FSP-751T

Installation and Maintenance Instructions

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 the National Fire Protection Association (NFPA); see NFPA 72.

GENERAL DESCRIPTION

Model FSP-751 and FSP-751T are intelligent sensors that combine a state-of- the-art photoelectronic sensing chamber with communications. The FSP-751T adds thermal sensors that will alarm at a fixed temperature of 135°F. These sensors are designed to provide open area protection and are intended for use with compatible control panels only.

Two LEDs on each sensor light to provide a local, visible sensor indication. Remote LED annunciator capability is available as an optional accessory (Part No. RA400Z).

Notifier panels offer different features sets across different models. As a result, certain features of the FSP-751 or FSP-751T may be available on some control panels, but not on others. The possible features available in the FSP-751 and FSP-751T, if supported by the control unit are:

1. The panel controls the LED operation on the sensor. Operational modes are RED blink, RED continuous, GREEN blink, and off.
2. The remote output may be synchronized to the LED operation or controlled independent of the LEDs.

Please refer to the operation manual for the UL listed control unit for specific operation of the FSP-751 and FSP-751T.

SPECIFICATIONS

• Operating Voltage Range: 15 to 32 VDC
• Standby Current: 300μA @ 24 VDC (one communication every 5 seconds with LED blink enabled)
• Max. Alarm Current (LED on): 6.5 mA @ 24 VDC
• Operating Humidity Range: 10% to 93% Relative Humidity, noncondensing
• Operating Temperature Range: 0° to 49°C (32° to 120°F); FSP-751
• Operating Temperature Range: 0° to 38°C (32° to 100°F); FSP-751T
• Height: 1.7 inches (43 mm) installed in B710LP Base
• Diameter: 6.1 inches (155 mm) installed in B710LP Base 4.1 inches (104 mm) installed in B501 Base
• Weight: 3.6 oz. (102 g)

SPACING

Notifier recommends spacing sensors in compliance with NFPA 72. In low air flow applications with smooth ceilings, space sensors 30 feet apart. For specific information regarding sensor spacing, placement, and special applications, refer to NFPA 72 or Notifier’s System Smoke Detector Application Guide, available at no charge from Notifier.

Duct Applications: FSP-751 and FSP-751T are listed for use in ducts.
See Duct Applications Guide A05-1004 for details on pendant mount applications.

NOTE: These products are not listed for use inside duct smoke detectors.

WIRING INSTRUCTIONS

All wiring must be installed in compliance with the National 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.

Disconnect power from the communication line before installing sensors.
All wiring must conform to applicable local codes, ordinances, and regulations.

1. Wire the sensor base (supplied separately) per the wiring diagram (Figure 1).
   
   Caution: Do Not Loop Wire Under Terminal 1 or 2. Break Wire Run To Provide Supervision of Connections.

2. Set the desired address on the sensor address switches.
   NOTE: Some panels support extended addressing. In order to set the sensor above address 99 on compatible systems, carefully remove the stop on the upper rotary switch with thumb as shown in Figure 2.
   

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 unit and activate the communication line.

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

CAUTION:

Dust covers provide limited protection against airborne dust particles during shipping. Dust covers must be removed before the sensors can sense smoke. Remove sensors prior to heavy remodeling or construction.

TESTING
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 NFPA 72. 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.
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: Aerosol Generator (Gemini 501)
The GEMINI model 501 aerosol generator can be used for smoke entry testing. Set the generator to represent 4%/ft to 5%/ft obscuration as described in the GEMINI 501 manual. Using the bowl shaped applicator, apply aerosol until the panel alarms.

C. Direct Heat Method (Hair dryer of 1000-1500 watts). FSP-751T only.
Direct the heat toward either of the side thermistors. Hold the heat source about 12 inches from the detector in order to avoid damage to the plastic. The detector will reset only after it has had sufficient time to cool.

Both smoke and heat detection testing are recommended for verifying system protection capability.

A sensor that fails any of these tests should be cleaned as described under CLEANING, and retested. If the sensor fails after cleaning, it must be replaced and returned for repair.

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

HIGH SENSITIVITY SETTING
The use of the 0.2% to 0.5% per foot sensitivity setting requires a 90-day test period to ensure that the detector’s environment is suitable for this setting. The following steps must be followed to meet Notifier and UL requirements for this high sensitivity application:

1. Each detector intended for 0.2% to 0.5% per foot alarm application shall have its initial alarm setting set for 0.5% obscuration per foot alarm level. The initial
   prealarm setting for the detector shall be set to the intended alarm setting of the system. Prealarm shall be set for nonlatching operation.

2. Detectors set at 0.2% to 0.5% per foot are intended for use in smoke-free, environmentally controlled applications, such as computer rooms and clean rooms.
   In order to determine if an environment is suitable for installation, the detectors shall be operated continuously for 90 days with all environmental factors,
   including temperature, humidity, air flow, occupancy, etc., similar to the intended application for these detectors. An electronic history file or printer shall be
   used to record all events associated with the detectors under testing.

3. At the end of 90 days, the results of the test shall be inspected by an authorized Notifier representative or the end user, if trained by an authorized Notifier representative. If no alarms or prealarms are recorded for the detectors under testing, the system may be set to the tested prealarm level in the 0.2% to 0.5% per foot range.

CLEANING
It is recommended that the detector be removed from its mounting base to facilitate cleaning. The detector is cleaned as follows:

NOTE: 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 detector cover by prying away the four side tabs with a small-bladed screwdriver, and then pulling the cover from the base.

2. Vacuum the screen carefully without removing it. If further cleaning is required continue with Step 3, otherwise skip to Step 8.

3. Remove the screen assembly by pulling it straight out (see Figure 4).
   

4. Remove the sensing chamber cover by pulling it straight out.

5. Clean the vaned chamber piece by vacuuming or blowing out dust and particles.

6. Replace the sensing chamber cover, aligning the arrow on the top with arrow on the printed circuit board.

7. To replace the screen, place it over the chamber assembly, turning it until it snaps into place.

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

9. Reinstall the detector.

10. Test the detector as described in TESTING.

11. Reconnect disabled circuits.

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

Please refer to insert for the Limitations of Fire Alarm Systems

FCC Statemen

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.

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