Honeywell NOTIFIER NFX-SMT3 Installation And Maintenance Instructions Manual

Honeywell NOTIFIER NFX-SMT3 Installation And Maintenance Instructions Manual Manual pdf 1 page image

I56-3390-002N200-202-00NFX-SMT3 / NFXI-SMT3B501AP63 mm102 mm0786-CPD-20644 09 NFX-SMT30786-CPD-20638 09 NFXI-SMT3Pittway Tecnologica S.r.l, Via Caboto 19/3,34147 Trieste, ItalyINSTALLATION AND MAINTENANCE INSTRUCTIONSFOR MODEL NFX-SMT3 / NFXI-SMT3MULTICRITERIA FIRE SENSORGENERAL DESCRIPTIONModels NFX-SMT3 and NFXI-SMT3 intelligent multicriteria sensors are plug-intype fire sensors that combine three types of detection capability with addressablecommunications. A photoelectronic sensing chamber detects smoke, while a thermalelement provides rate-of-rise and fixed temperature heat sensing and an infra-red sensoradds further detection ability. These sensors are designed for open area protectionand must only be connected to control panels that use a compatible proprietarycommunication protocol for monitoring and control.The NFXI-SMT3 sensor contains an isolator, if installing this version check the paneldocumentation for details of how many isolators can be used on a loop.Two LEDs on each sensor light to provide a local 360o visible sensor indication (operationof LEDs are dependent on panel). Remote LED indicator capability is available as anoptional accessory wired to the standard base terminals (again dependent on panel).SPECIFICATIONSOperating Voltage Range: 15 to 32 VDC (15 to 28 for NFXI isolated)Max. Standby Current (no comm.): 200 μA @24 V and 25oC(comm. LED blink enabled - 5 sec) 300 μA @24 V and 25oC(Read 16 sec. LED blink 8 sec) 220 μA @24 V and 25oCadd 50 μA for NFXI IsolatedMax. Alarm Current (LED on): add 3.5 mA @ 24 V and 25oCOperating Humidity Range: 15% to 90% Relative Humidity, Non-CondensingNominal Activation Temperature: 58°CIndependently tested and certified to: EN54-7: 2000, EN54-5: 2000 Class A1R andCEA4021 (and EN54-17: 2005 for the NFXI)WIRING GUIDERefer to the installation instructions supplied with the plug-in sensor bases for wiringdetails. 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 correctat each base.WARNINGDisconnect loop power before installing sensors. Notify proper authorities.SENSOR INSTALLATION1. Set the sensor address (see figure 1) by turning the two rotary switches on theunderside of the sensor, selecting a number between 01 and 159. (Note: Thenumber of addresses available will be dependent on panel capability, check the paneldocumentation for information on this). Record the address on the label attachedto the base.Notifier Ltd., Charles Avenue, Burgess Hill, West Sussex, RH15 9UF, UK2. 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 sensorfrom the base without the use of a tool. Refer to the installation instructions for thesensor base for details of how to use this feature.CAUTIONDust covers help to protect units during shipping and when first installed. Theyare not intended to provide complete protection against contamination thereforesensors should be removed before construction, major re-decoration or otherdust producing work is started. Dust covers must be removed before systemcan be made operational.Figure 2: Cleaning the SensorSensor CoverCover Removal TabsThermistor Air GuideSensing Chamber Coverand ScreenInfra-Red SensorThermistor Optical Sensing ChamberMAINTENANCEBefore cleaning, disable the system to prevent unwanted alarms:1. Remove the sensor to be cleaned from the system.2. Gently release each of the four cover removal tabs that hold the cover in place (seefigure 2) and remove the sensor cover.3. Gently remove the thermistor air guide by pulling it straight out.4 Vacuum the outside of the screen/chamber cover carefully without removing it.5. Remove the screen/chamber cover assembly by pulling it straight out (take care toavoid damaging the thermistor).6. Use a vacuum cleaner and/or clean, compressed air to remove dust and debris fromthe sensing chamber, sensing chamber cover and thermistor if required..7. Re-install the sensing chamber cover by aligning the square and round holes on thecover with the square and round pins around the sensing chamber, gently pressingit home until it slips into place.8. Re-install the thermistor air guide by aligning the holes in the guide with the pins ontop of the chamber cover (take care to avoid damaging the thermistor).9 Re-install the sensor cover. Use the cover removal tabs and LEDs to align the coverwith the sensor. Snap the cover into place.10. When all sensors have been cleaned, restore power to the loop and test the sensor(s)as described under TESTING.TESTINGSensors must be tested after installation and following periodic maintenance. Disablethe zone or system undergoing maintenance to prevent unwanted alarms.Test the sensors as follows:Magnet Method1. Test the sensor by positioning the test magnet (model M02-24-optional) againstthe sensor body approximately 2cm from LED 1, indicated by a mark on the sensorcover as shown in figure 3.2. Both LED’s on the sensor should latch into alarm within 30 seconds, activating thecontrol panel.Figure 3: Test Magnet PositionENGLISHSmoke Method1. Using generated smoke, or synthetic smoke aerosol from an approved manufacturersuch as No Climb Products Ltd, subject the sensor to controlled amounts of smokein accordance with local codes of practice and manufacturer recommendations.2. Both LED’s on the sensor should latch into alarm within 30 seconds, activating thecontrol 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 cmaway to prevent damage to the cover during testing.2. The LEDs on the sensor should light when the temperature at the sensor reaches58°C.3. Reset the sensor at the system control panel.After completion of the test notify the proper authorities that the system is operational.WARNINGLIMITATIONS OF SMOKE SENSORSFire sensors must be used in conjunction with compatible equipment.Smoke sensors will not sense fires which start where smoke does not reach the sensors.A sensor may not detect a fire developing on another level of a building.Smoke sensors also have sensing limitations. Consideration must be made of theenvironment when selecting fire sensors.Fire sensors cannot last forever. Fire sensors contain electronic parts. Even thoughsensors are made to last over 10 years, any of these parts could fail at any time. There-fore, test your fire detection system at least semi-annually. Clean and take care of yoursmoke sensors regularly. Taking care of the fire detection system you have installedwill significantly reduce your product liability risks.Mark on CoverTestMagnetLED 1LED 2Figure 1: Rotary Address Switches

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