Honeywell NOTIFIER NFX Serie Instrucciones De Instalación Y Mantenimiento

102 mm
B501AP
INSTALLATION AND MAINTENANCE INSTRUCTIONS
ENGLISH
FOR THE NFX/NFXI THERMAL FIRE SENSORS
GENERAL DESCRIPTION
The NFX/NFXI intelligent thermal sensors are plug-in type fire sensors that use a
single thermistor sensing circuit to provide early warning of developing fires, together
with addressable communication with the fire panel.
The NFX-TDIFF/NFXI-TDIFF provides fixed 58
temperature sensing (Class A1R).
The NFX-TFIX58/NFXI-TFIX58 provides fixed 58
The NFX-TFIX78/NFXI-TFIX78 provides fixed 78
These sensors are designed for open area protection and must only be connected to
fire panels that use a compatible proprietary communication protocol for monitoring
and control.
The NFXI sensors contain an isolator, if installing this version check the panel
documentation for details of how many isolators can be used on a loop.
Two LEDs on each sensor light to provide a local 360
of LEDs are dependent on panel). Remote LED indicator capability is available as an
optional accessory wired to the standard base terminals (again dependent on panel).
SPECIFICATIONS
Operating Voltage Range:
Max. Standby Current (no comm.): 160 µA @24 V and 25
(comm. LED blink enabled - 5 sec) 300 µA @24 V and 25
(Read 16 sec. LED blink 8 sec)
Max. Alarm Current (LED on):
Operating Humidity Range:
These sensors have been Independently tested and certified to:
NFX-TDIFF/NFXI-TDIFF: EN54-5: 2000 Class A1R (and EN54-17: 2005 for NFXI)
NFX-TFIX58/NFXI-TFIX58: EN54-5: 2000 Class A1S (and EN54-17: 2005 for NFXI)
NFX-TFIX78/NFXI-TFIX78: EN54-5: 2000 Class BS (and EN54-17: 2005 for NFXI)
EN54-5 states that Class A1 has a maximum application temperature of 50
B has a maximum application temperature of 65
WIRING GUIDE
Refer to the installation instructions supplied with the plug-in sensor bases for wiring
details. All bases are provided with terminals for power and an optional Remote Indicator.
Note 1: All wiring must conform to applicable local and national codes and regulations.
Note 2: Verify that all sensor bases are installed and that polarity of the wiring is correct
at each base.
Disconnect loop power before installing sensors. Notify proper authorities.
SENSOR INSTALLATION
1. Set the sensor address (see figure 1) by turning the two rotary switches on the un-
derside of the sensor, selecting a number between 01 and 159. (Note: The number
of addresses available will be dependent on panel capability, check the panel docu-
mentation for information on this). Record the address on the label attached to the
base.
Figure 1: Rotary Address Switches
2. Insert the sensor into the base and rotate it clockwise until it locks into place.
3. After all the sensors have been installed, apply power to the system.
4. Test the sensor as described under TESTING.
5. Reset the sensor by communication command from the panel.
Tamper-Resistance.
These sensors includes a feature that, when activated, prevents removal of the sensor
from the base without the use of a tool. Refer to the installation instructions for the
sensor base for details of how to use this feature.
N200-203-00
o C and rate-of-rise (10
C temperature sensing (Class A1S).
o
C high temperature sensing (Class BS).
o
visible sensor indication (operation
o
15 to 32 VDC (15 to 28 for NFXI isolated)
o C
o C
190 µA @24 V and 25 o C
add 50 µA for NFXI isolated models
add 3.5 mA @ 24 V and 25 C
o
10% to 93% Relative Humidity, Non-Condensing
o C.
WARNING
Notifier Ltd., Charles Avenue, Burgess Hill, West Sussex, RH15 9UF, UK
0786-CPD-20649 09 NFX-TDIFF
0786-CPD-20647 09 NFX-TFIX58 0786-CPD-20641 09 NFXI-TFIX58
0786-CPD-20648 09 NFX-TFIX78 0786-CPD-20642 09 NFXI-TFIX78
NFX-TDIFF / NFXI-TDIFF
NFX-TFIX58 / NFXI-TFIX58
NFX-TFIX78 / NFXI-TFIX78
Dust covers help to protect units during shipping and when first installed.
They are not intended to provide complete protection against contamination
therefore sensors should be removed before construction, major re-decoration
or other dust producing work is started. Dust covers must be removed before
MAINTENANCE
Before cleaning, disable the system to prevent unwanted alarms:
o C/minute)
1. Remove the sensor to be cleaned from the system.
2 Use a vacuum cleaner and/or clean, compressed air to remove dust and debris from
the thermistor and sensor cover.
3. Replace the sensor into the base.
4. When all sensors have been cleaned, restore power to the loop and test the sensor(s)
as described under TESTING.
TESTING
Sensors must be tested after installation and following periodic maintenance. Disable
the zone or system undergoing maintenance to prevent unwanted alarms.
Test the sensors as follows:
Magnet Method
1. Test the sensor by positioning the test magnet (model M02-24-optional) against
the sensor body approximately 2cm from LED 1, indicated by a mark on the sensor
cover as shown in figure 2.
2. Both LED's on the sensor should latch into alarm within 30 seconds, activating the
control panel.
Figure 2: Test Magnet Position
o C, Class
Control Panel Method
1. Test the sensitivity from the system control panel.
Direct Heat Method (Hair dryer of 1000-1500 watts).
1. Direct the heat toward the sensor from its side. Hold the heat source about 15 cm
away to prevent damage to the cover during testing.
2. The LEDs on the sensor should light when the temperature at the sensor reaches
58°C/78°C (dependent on the model being tested).
3. Reset the sensor at the system control panel.
After completion of the test notify the proper authorities that the system is operational.
Fire sensors must be used in conjunction with compatible equipment.
Heat sensors are designed to protect property, not life. They do not provide early
warning of fire and cannot detect smoke, gas, combustion particles or flame.
Heat sensors do not always detect fires because the fire may be a slow smouldering,
low-heat type (producing smoke) or because they may not be near where the fire oc-
curs, or because the heat of the fire may bypass them. Consideration must be made
of the environment when selecting heat sensors.
Fire sensors cannot last forever. Fire sensors contain electronic parts. Even though
sensors are made to last over 10 years, any of these parts could fail at any time.
Therefore, test your fire detection system at least semi-annually. Taking care of the fire
detection system you have installed will significantly reduce your product liability risks.
0786-CPD-20643 09 NFXI-TDIFF
Pittway Tecnologica S.r.l, Via Caboto 19/3, 34147 Trieste, Italy
CAUTION
system can be made operational.
Test
Magnet
Mark on Cover
LED 2
WARNING
LIMITATIONS OF THERMAL SENSORS
LED 1
I56-3391-002