FSI-851 Plug-in Intelligent Ionization Sensor
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 FSI-851 is an intelligent sensor that uses a state-of-the-art sensing chamber. This sensor is designed to provide open area protection and is intend-
ed 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 feature sets across different models. As a result, certain features of the FSI-851 may be available on some control panels, but
not on others. The sensor will support either FlashScan™ or CLIP (Classic Loop Interface Protocol) mode. The possible features available in the FSI-851,
if supported by the control unit include:
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 FSI-851.
The FSI-851 requires compatible addressable communications to function properly. Connect this sensor to listed-compatible control panels only.
SPECIFICATIONS
Operating Voltage Range:
15 to 32 VDC
Max. Avg. Standby Current:
300µA @ 24 VDC (one communication every 5 sec. 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)
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:
3.8 oz. (108 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 applica-
tions, refer to NFPA 72 or the
System Smoke Detector
Application Guide
, available from Notifier.
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 prevent a sys-
tem 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 finger
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.
Dust covers provide limited protection against airborne dust particles during shipment. Dust covers must be removed before the sensors can
sense smoke. Remove the sensors prior to heavy remodeling or construction.
TAMPER-RESISTANCE
Model FSI-851 includes a tamper-resistant capability that prevents its removal from the bracket without the use of a tool. Refer to the base manual for details
on making use of this capability.
N200-11-00
1
I56-1924-00R
Notifier 12 Clintonville Rd, Northford, CT 06472-1653, (203) 484-7161
Figure 1. Wiring Diagram
Figure 2.
A78-2745-00
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
CAUTION
3
2
1
3
2
1
+
–
–
+
UL LISTED COMPATIBLE
CONTROL PANEL
OPTIONAL RETURN LOOP
REMOTE ANNUNCIATOR
+
–
A78-2461-00
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