N200-12-00
1
I56-1925-00R
Notifier, 12 Clintonville Rd, Northford, CT 06472, (203) 484-7161
FSP-851, FSP-851T and FAPT-851 Intelligent Photoelectric Smoke Sensors
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
Models FSP-851, FSP-851T and FAPT-851 are plug-in type smoke sensors that combine a photoelectronic sensing chamber with addressable-analog communica-
tions. The sensors transmit an analog representation of smoke density over a communication line to a control panel. Rotary decade switches are provided for setting
the sensor’s address.
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
RA400Z). Models FAPT-851 and FSP-851T combines a photoelectronic sensing chamber and 135°F (57.2°C) fixed temperature heat detector.
Notifier panels offer different features sets across different models. As a result, certain features of the FSP-851, FSP-851T and FAPT-851 may be available on some
control panels, but not on others. The possible features available in the FSP-851, FSP-851T and FAPT-851, 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-851, FSP-851T and FAPT-851.
The FSP-851, FSP-851T and FAPT-851 require compatible addressable communications to function properly. Connect these sensors to listed-compatible control
panels only.
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-851
0° to 38°C (32° to 100°F); FSP-851T, FAPT-851
Height:
2.1 inches (51 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:
5.2 oz. (147 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 informa-
tion regarding sensor spacing, placement, and special applications, refer to NFPA 72
or the
System Smoke Detector Application Guide
, available from Notifier.
Duct Applications: FSP-851 and FSP-851T 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 GUIDE
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 pre-
vent 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) per the wiring diagram, see Figure 1.
2. Set the desired address on the sensor address switches, see Figure 2.
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.
TAMPER-RESISTANCE
Models FSP-851, FSP-851T and FAPT-851 include a tamper-resistant capability that prevents their removal
from the bracket without the use of a tool. Refer to the base manual for details on making use of this capability.
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 com-
pliance with NFPA 72.
3
2
1
3
2
1
+
–
–
+
UL LISTED COMPATIBLE
CONTROL PANEL
OPTIONAL RETURN LOOP
REMOTE ANNUNCIATOR
+
–
A78-2461-00
Dust covers provide limited protection against airborne dust particles during shipping. Dust cov-
ers must be removed before the sensors can sense smoke. Remove sensors prior to heavy
remodeling or construction.
Figure 1. Wiring Diagram
TENS
Breakaway Stop
ONES
9
10
11
12
13
14
15
8
7
6
5
4
3
2
1 0
9
8
7
6
5
4
3
2
1 0
Figure 2. Rotary Address Switches
Caution: Do Not Loop Wire Under Terminal 1 or 2.
Break Wire Run To Provide Supervision of Connections.
A78-2745-00
CAUTION
COVER
REMOVAL TABS
SENSOR
COVER
SENSING CHAMBER
COVER AND SCREEN
SENSING
CHAMBER
Figure 3.
A78-2747-03
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