nas-2 - notifier · other notifier smoke sensors can be used ... 1.3 system operation the nas-2...

NAS-2 installation and

user guide

997-528-000-1, Issue 1 October 2005

NAS Installation & User Guide

i 997-528-000-1, Issue 1October 2005

Co

nte

nts

Contents1 Introduction 1

1.1 General Description 1

1.2 NAS-2 Components 3

1.3 System Operation 3

1.4 System Requirements 4

1.5 Basic Information about AspiratingSystems 4

2 Installation Guide 7

2.1 Detection Panel Installation 7

2.1.1 Fixing the Panel to the Wall 7

2.1.2 Attaching the Air Flow Inlets 7

2.1.3 Air Filter 8

2.1.4 Electrical Connections 8

2.1.5 Power Supply 10

2.2 Pipe Network Installation 11

2.2.1 Design Considerations 11

2.2.2 I Type Installation 12

2.2.3 U Type Installation (Symmetrical) 13

2.3 Checking Air Flow Calibration 13

2.4 Internal Detectors 13

2.5 Connecting to a Fire Alarm System 14

3 User Guide 15

3.1 Control Keys 15

3.2 Aspirating System Configuration 16

3.3 Alarm and Fault Indication 22

4 Technical Specifications 23


1 997-528-000-1, Issue 1October 2005

Intr

od

uct

ion

1 Introduction

1.1 General Description

The new NAS-2 has been designed to provideall the benefits of aspirating smoke detection,including very early warning when two VIEWsensors are installed inside the NAS-2 units.This has been achieved through thecombination of the highest approved VIEWdetection technology and a powerful aspirator.

Other NOTIFIER smoke sensors can be usedin place of VIEW (though VIEW isrecommended for all panels except ID50,which cannot use VIEW).

Analogue sensors have up to 9 alarm and pre-alarm sensitivity levels programmable at thecontrol panel to be adaptable to any kind ofapplication. Thus, the aspiration system canbe integrated in the ID50/60, ID2000 andID3000 control panel loop.

Control panels make their own driftcompensating algorithms which allowsmaintenance to be prolonged.

Two flow levels (high-low) can be set at theNAS-2 detector after the normal flow level hasbeen reached, thus a fault will be indicated incase the flow changes +/-20%, according toprEN54-20 point 5.10.

FEATURES

! Metal cabinet. Simple mounting design.

! Fixed back box (docking station) for easiermaintenance.

! Maximum recommended sampling pipelength of 100 meters.

! Using VIEW sensors, the Alarm sensitivityrange starts at 0.066 % obs /meter. Thus,in the worst conditions, with 100 meters ofpipe and 20 sampling holes (5 meters), thesensitivity is higher than standardphotoelectrical detectors (1.3% obs/meter).

! Maximum sensitivity resolution � 0.021%obs/meter.

! Two monitored input voltage 24Vdc.

! Normal Supply voltage 21-29Vdc (allowed17-32Vdc).

! LCD display with 16 characters.

! 4 status LEDs: airflow fault, alarm 1,alarm 2 and power.

IMPORTANT NOTE:

Please check the label located at the right side ofNAS-2 to know the manufacturing date of theequipment. This manual should only be used forequipment made from May 2005.


2997-528-000-1, Issue 1October 2005

Intr

od

uct

ion

! User may select that both Alarm leds willbe illuminated only in case of alarm and donot blink in stand-by.

! 5 Configuration Keys.

! Operating hours and unit voltages will bedisplayed by pressing one key.

! Air flow continuous monitoring.

! User-configurable indication for minimumand maximum flow levels.

! Four flow levels displayed: Current,minimum, maximum and saved in theconfiguration.

! Two alarm relays.

! Normally energized fault relay contact (NASpower and airflow level).

! Two Sampling Air inlets.

! Two Air exhaust options using the sameunit:

! Lower Exhaust Option to return theair in the same area (usual option inmost installations).

! Upper Exhaust Option to return theair to the monitored area to avoiddifferent air pressure levels(depending on NAS-2 model)

! Two B501 Bases included.

! Two intelligent sensor chambers, in orderto avoid nuisance alarm, enablecooperating algorithms at the control panel.

! Alarm decision depending on the panel (theuse of VIEW sensors is recommended forID60, ID2000 and ID3000 control panels)

! Internal log of the latest 8 events. Eventsreported and saved immediately at thecontrol panel.

! Removable terminal blocks for M710monitor module and old MMX-102. Thisconnection allows a second way ofreporting fault and fire events in the NASand coincidence alarms in the control panel.

! Fault and fire events may be set to latch ornot latch at the NAS configuration.

! One or two input pipes.


3 997-528-000-1, Issue 1October 2005

1.2 NAS-2 Components

1 Power cable/loop inlets PG13,5

2 Sampled air inlet. A second inlet is optionalfor installations with two pipes.

3 Optional air output to be used in areas withdifferent pressure levels.

4 Main PCB.

5 Detector chamber cover.

6 Particle filter.

7 Fan.

8 Analysis chamber with space for twosensors.

9 Base to install the two sensor bases.

Sensor 1: right; Sensor 2: left

10 Default air outputs.

1.3 System Operation

The NAS-2 draws air from the protected areausing a network of sampling pipes. Thesampled air is then passed through a detectingchamber where it is analysed by two detectors.These detectors will transmit the smokeconcentration value to the control panel thatwill decide whether an alarm should beindicated. If there is a real fire alarm, the controlpanel will activate the sensor leds, and thesensor will activate the aspirating systemrelays.

Aspirating systems are ideal for use in areaswhere early warning is critical or whereindividual smoke detectors offer a limitedservice, such as:

! Areas of l imited access where theinstallation of and/or maintenance ofindividual detectors may be difficult(tunnels, ventilation systems, excessivelyhigh areas etc).

! Large buildings with possibility ofstratification.

! Hyperventilated areas, such as computerrooms, etc.

AIR INTAKE

INLET FILTER

FAN

SENSORS1 & 2

Intr

od

uct

ion


4997-528-000-1, Issue 1October 2005

1.4 System Requirements

! A fire alarm control panel compatible with700 Series smoke sensors.

! One M710 monitor module to provide faultindication.

! Two smoke detectors. VIEW sensors arerecommended with ID60, ID2000 andID3000 control panels.

! Power supply from, at least, a 24 Vdc(500 mA) power supply unit (optional useof two units) and coming from an EN54-4power supply.

! One or two pipe branches with a 27 mmouter diameter (NAS-2 allows 25 mm,25.5 mm and 27 tube inlets) and 21 mminner diameter, with a maximum length of100 meters using only one pipe or, usingtwo pipes, maximum 60 meters each one,in order to assure a maximum responsetime of 120 seconds.

1.5 Basic Information about AspiratingSystems

The Aspirating System Detection consists of acabinet with one or more detectors mountedinside. These detectors receive air samplesfrom the protected area through samplingholes (3-8 mm size) drilled in the pipe.

The maximum pipe length depends on themaximum response time that LPCB/BASEFA,prEN54-20 and CEA 4022 limit to 120 seconds.This period of time includes the verificationtime in the control panel.

Intr

od

uct

ion

40 m approx. 40 sec. 100 m approx. 100 sec.


5 997-528-000-1, Issue 1October 2005

Why VIEW and no other sensor?

The VIEW sensor has a very high sensitivityand is able to activate an alarm at 0.1% obs/m.These sensitivity levels may be improved ifsensor cooperation is programmed. However,a standard sensor has an alarm level close to3% obs/m.

If standard sensors are to be used (withouthigh sensitivity) and there is only one samplingpoint, the sensor sensitivity inside NAS-2 wouldbe the same as a point detector�s. However, ifthere are a number of sampling points, eachnew point reduces the sensitivity, as theyreceive clean air samples as well. When thereare 2 sampling points, the sensitivity per pointis reduced by half. In the case of 10 samplingpoints, the sensitivity in each sampling point isa tenth part of the sensitivity (in a well-balancedsystem).

For a typical installation, the coverage andlayout of sampling points is made like standardsmoke point detector arrangement. Followingthe above example, with 10 sampling points,the sensitivity per point in the VIEW sensorwill become 1% obs/meter. However, withstandard optical sensors, the sensitivity will be30% obs/meter. This effect is especiallyunsuitable when the system is to be used incompartmentalized areas. Obviously, the useof detectors without high sensitivity, in this kindof application, is absolutely inappropriatebecause an effective alarm warning is notguaranteed.

The picture at left shows how the fire makesthe smoke arrive at 6 out of 8 sampling points,thus the sensitivity will be 6/8 of sensors�sensitivity. When using a VIEW, the alarmsensitivity is 0.1% obs/m; therefore, in thiscase, the alarm level will be 0.13% obs/m.In

tro

du

ctio

n


6997-528-000-1, Issue 1October 2005

PIPE EFFECT

The tubing will normally be PVC or ABS andhave an inner diameter of 25 mm and an outerdiameter of 27 mm. This diameter can bereduced in some points of the pipe and thetransport time is reduced as well, however thesensitivity balance by point is adverselyaffected, that is, the sensitivity in the differentsampling points will not be the same.

The bend radius affects the air speed and,therefore, no more than three bends arerecommended, because, even though bendswith high radius increase the pipe distance,they reduce the transport time as well.

WHEN TO USE THE AIR RETURN PIPE(depending on NAS-2 model)

When the pressure of the protected area isthe same as the one present at the NAS-2location, the outlets at the bottom of the NAS-2can be used. When the difference betweenpressures is more than 25 Pascals, the outletat the top of the NAS-2 should be used and itis necessary to run a return air pipe to themonitored area.

INSTALLATION WITH CAPILLARY TUBES

Capillary tubes are available at NOTIFIER(ref.: 510-KIT) in order to make pipe extensionsat intermediate points, usually in ceiling voids,at 1 meter from the pipe. The flexible nylontube includes a bracket for ceiling void and aT-junction to be connected to the aspiratingpipes net. Moreover, a capillary sampling pointfor the end of the pipe (ref.: 510-FIN) isavailable.

Intr

od

uct

ion


7 997-528-000-1, Issue 1October 2005

2 Installation Guide

2.1 Detection Panel Installation

2.1.1 Fixing the Panel to the Wall

The panel must be installed in a clean, dryplace free from vibrations with a temperaturebetween 0º and 35º C. The relative humiditymust not exceed 95%. There should be nocondensation. The panel should be installedwhere the risk of fire is minimal and the placeis protected by the fire detection system. Riskof mechanical damage must be avoided.

Fix the panel to the wall at an approximateheight of 1.5 metres from the floor, in a placewith easy access. The panel LED indicatorsshould be at eye-level.

2.1.2 Attaching the Air Flow Inlets

Make sure that knockouts are drilled followingthe established configuration. If you are usingan �I type installation� (see Section 2.2.3), onlyone inlet, A or B, should be drilled. If you usea �U type installation� (symmetric), both inlets,A and B, should be drilled.

If your installation does not need the air to bereturned, ensure that D and E knockoutslocated in the internal cover are drilled. Theinternal cover is the metal sheet that coversthe two detectors fitted inside NAS-2.C knockout should not be drilled in this case.

In order to avoid different pressure levels insideNAS-2 and the protected area, ensure thatC knockout is drilled and D and E are not.

The ventilation outlet on the base of the panelhousing must not be blocked or obstructed.Ensure the panel installation provides aminimum space of 10cm beneath the outlet toensure proper ventilation of the panel.

Avoid pressure differences between the air inlet(pipe network) and the ventilation outlet. Ifpressure differences exist a pipe may be runfrom the ventilation outlet to the protected area.

!

Do not perforate the panel in places otherthan those indicated. Avoid droppingshavings or pieces of removed casing

inside the panel as this may damage theelectronic circuits.

Panel and bracket with dimensions in millimeters

Inst

alla

tio

n G

uid

e

112

256

192

249

73

355

46 34


8997-528-000-1, Issue 1October 2005

2.1.3 Air Filter (FIL-NAS-2)The air filter supplied with the panel is locatedbetween the pipe inlet and the fan and itremoves dust and other particles from thesampled air prior to analysis.

The air filter may be replaced when necessary.

Filter features:

Dimensions (mm): 70 (h) x 113 (w) x 19 (d)Material: 100% polyesterPorosity: 1750 l/m2/sgType of filtration: Thin filtration; 10u

2.1.4 Electrical Connections

1 2 3 4 5 6 7 8 9

PCB layout and electrical connections

1 24 Vdc power input from an EN54-4 powersupply;

2 OPTIONAL 24 Vdc power input from anEN54-4 power supply;

3 Alarm relay contacts linked to sensor 1;

4 Alarm relay contacts linked to sensor 2;

5 Fault relay contacts (energized in normalcondition);

6 Analogue loop input to sensor # 1(S=Shield);

7 Analogue loop output to sensor # 1(S=Shield);

8 Analogue loop input to sensor # 2(S=Shield);

9 Analogue loop output to sensor # 2(S=Shield).

The board has an internal jumper to be usedwhen both devices belong to the same loop.The connection between the sensor # 1 outputand the sensor input # 2 is to be avoided.

Inst

alla

tio

n G

uid

e


9 997-528-000-1, Issue 1October 2005

DEFAULT SWITCH CONFIGURATION

The system operation according to the switchsetting is as follows:

SW1 (ON): Power supply 1 has beenselected. There is no monitoring for asecondary power supply.

SW2 (ON): Blinking of the sensor 1 led isenabled in stand-by.

SW3 (ON): Blinking of the sensor 2 led isenabled in stand-by.

Combination of SW4 (OFF), SW5 (ON) andSW6 (ON): Only one sensor in alarmactivates the alarm indication of the module.

INDICATIONS OF ALARM AND FAULTCONDITIONS

NAS-2, apart from indicating alarms and faultsthrough relays, has a connection to an M710or MM-103 Monitor Module. Terminals J15connect the module to the analogue loop andterminals J14 connect it to the modulemonitored zone. Do not fit the module’stermination link (NAS-2 has built-intermination).

In case of alarm, the system �adds� a 18Kohmsresistance in parallel with the end of zoneresistance in the J14 terminals, allowing theindication of an alarm in the module when ANYof the two sensors goes into alarm (SW4-OFF,SW5-ON and SW6-ON), that is 0 - 1 - 1.

The configuration is different if an alarm isrequired to be activated when BOTH sensorsgo into alarm (coincidence): SW4-ON, SW5-OFF and SW6-OFF, that is 1 - 0 - 0.

Inst

alla

tio

n G

uid

e

SW1 SW2 SW3 SW4 SW5 SW6

SW1 SW4 SW5 SW6

SW1 SW4 SW5 SW6

SW4,SW5,SW6 Normal Fault Alarm Alarm Fault + Fault +1 Sens 2 Sens Alarm Alarm

1 Sens 2 Sens

0 1 1 Normal Fault Alarm Alarm Alarm Alarm

1 0 0 Normal Fault Normal Alarm Fault AlarmCOINCIDENCE

SW1 SW4 SW5 SW6

SW1 SW4 SW5 SW6


10997-528-000-1, Issue 1October 2005

If a fault occurs at NAS-2, there will be an opencircuit between J14 terminals and a fault willbe indicated in the module.

Inst

alla

tio

n G

uid

e 2.1.5 Power Supply

The detector panel operates at 21-29 Vsupplied by an external EN54-4 - compliantpower supply, according to prnEN54-20 foraspirating systems, paragraph 5.11.

NAS-2 provides, optionally, a secondstandalone power supply input in case the firstone fails. In order to enable this second powersupply, the SW1 should be set to OFF. SW1jumper is set to ON, by default, indicating thatthere is only one power supply enabled in theaspirating system.

Location and dimensions of components in thisillustration are not to scale

- black

+ red

LOOP

ZONER=18k

Internalresistance

J15

J14

PWR1 LOW 21.0

PWR1 HIGH 29.0

Both power supply inputs are monitored by theaspirating system and they indicate a fault ifthe power is below 21 Vdc. In such case, thedevice will indicate which one of both 24 Vdcinputs is LOW.

If power is more than 29 Vdc and less than 31Vdc (maximum operating power of the device),NAS-2 will indicate which of both power inputsis HIGH.


11 997-528-000-1, Issue 1October 2005

Inst

alla

tio

n G

uid

e

2.2 Pipe Network Installation

The pipe network will require:

! 1 x set of standard pipe lengths (25mm -27mm diameter) with sampling holes. Pipelengths and sampling holes will depend onthe type of installation used.

! Selection of the distance and aspirationspeed. At the top of the PCB there are threepins, J22, which are used to select the fanaspiration speed. There is no jumper bydefault (13.5) (see drawing below).

! 1 x set of standard pipe fittings (25mmdiameter) and accessories (elbows, tees,plugs etc.).

!

Read the following carefully beforeattempting instllation of the pipe

network.

Short pipe(s). 1 pipe with a maximum of 80 m or 2 pipes with a maximum of 60 m each one.

Long pipe(s). 1 pipe of maximum 100 m.

Not available.

Note: These combinations do notreduce the transport time. 2.2.1 Design Considerations

Design and installation guidelines are providedfor 3 installation types:

! I Type installation.

! U Type installation (symmetrical).

Each installation type has its owncharacteristics and design considerations, butthe following is true for all:

! The pipe network is best installed in thesame area as the detector panel to avoidpressure differences.

! The pipe used should be PVC or ABS red27mm.

! Sampling hole distribution according tolocal specification rules, such as EN54-14or BS5839 part 1 or whichever suitable.

! The pipe network must be airtight - leakswill affect the accuracy and performanceof your system.


12997-528-000-1, Issue 1October 2005

Variable sampling hole sizes (with the smallestholes closest to the detector panel) are usedto ensure uniform air sampling across the pipelength / protected area. The actual diameterof each sampling hole is defined by the numberof sampling holes used in the system.

2.2.2 I Type Installation

Example of sampling point diameter,depending on the number of points 5, 7,9,10and 12, calculating that the distance betweenpoints is 5 m.

Transport time indicated is the one referred tofrom the last sampling point. Times are givenin seconds.

Inst

alla

tio

n G

uid

e

Example of calculation for a 25 m pipe, with 5 sampling points, to a 60 m pipe, with 12 sampling points.12Vdc. No pins in J22. (Short pipes)

Point 1 2 3 4 5 6 7 8 9 10 11 12 TimeDistance from NAS(meters) 5 10 15 20 25 30 35 40 45 50 55 605 sampling holes 3.5 3.5 3.5 3.5 6.0 207 sampling holes 3.0 3.0 3.0 3.0 3.0 3.5 5.5 309 sampling holes 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 4.5 4210 sampling holes 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0 4.5 5012 sampling holes 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 4.5 65

Example of calculation for an 80 m pipe, with 12 sampling points. No pins in J22 = 12Vdc. (Short pipes)

Example of calculation for a 100 m pipe, with 15 sampling points. Pins in J22 = 13.5Vdc. (Long pipes).

Point 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 TimeDistance fromNAS (meters) 6.7 13.3 20.0 26.7 33.3 40.0 46.7 53.3 60.0 66.7 73.3 80.0 12 samplingholes 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.5 3.5 5.5 84

Point 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 TimeDistance fromNAS (meters) 6.7 13.3 20.0 26.7 33.3 40.0 46.7 53.3 60.0 66.7 73.3 80.0 86.7 93.3 100.0 15 samplingholes 2.0 2.0 2.0 2.0 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 4.5 105


13 997-528-000-1, Issue 1October 2005

2.2.3 U Type Installation (Symmetrical)

Inst

alla

tio

n G

uid

e

Example of calculation for two pipes of maximum 60 m each one with 12 sampling points. Fan aspiratingspeed will be LOW 12Vdc. Times are given in seconds.

Point 1 2 3 4 5 6 7 8 9 10 11 12 TimeDistance from NAS(meters) 5 10 15 20 25 30 35 40 45 50 55 604 sampling holes 3.0 3.0 3.0 3.5 306 sampling holes 2.5 2.5 2.5 2.5 2.5 3.5 508 sampling holes 2.0 2.0 2.0 2.0 2.0 2.0 2.0 3.0 7310 sampling holes 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 3.0 9512 sampling holes 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 3.0 106

2.3 Checking Air Flow Calibration

To check breakage behaviour, open pipenetwork and check that the system indicatesa fault condition.

With the pipe opened, the system shouldindicate A99 flow (see example at left),otherwise, when the pipe is blocked and no�air� reaches the fan, the system willindicate 00.

To check blockage threshold, block 20% ofsampling holes and check that the systemindicates a fault condition.

2.4 Internal Detectors

Notifier recommends the use of VIEW sensorsinside the NAS-2 aspirating system, becausetheir sensitivity makes them suitable for thiskind of application. In any case, the system iscompatible with all the 700 Series smokesensors.

The remote indicator of the sensor activatesthe fire alarm in an aspirating system. Whenthe sensor goes into alarm, the sensor alarmLED is activated together with the relevantrelay (J3 Terminal for Sensor 1 and J4 Terminalfor Sensor 2).

S52 A99 H60 L40


14997-528-000-1, Issue 1October 2005

When using analogue sensors, the LED at thefront of the panel may be illuminated briefly, innormal state and every time that analoguesensors are sampled by the control panel. Toenable this option, SW2 should be set to ON forSensor 1 and SW3 should be set to ON forSensor 2. In case one of these SW is set to LEDOFF, only the external LED will be activated incase of alarm. Irrespective of the switch settings,the sensors will not blink unless the �blink�option is enabled in the panel configuration.

When the sensor 1 output is not linked withthe sensor 2 input and the optional LINK S1-S2is not used, each sensor can operate in aseparate loop/zone.

The default links between loop/zone andsensors are made with the connectors locatedon the right hand of the board, J12 and J13.Each of them has three wires to provide powerto the sensor and monitor the remote LEDsignal required to indicate an alarm.

2.5 Connecting to a Fire Alarm System

Inst

alla

tio

n G

uid

e

OFF ON

SW2 LED OFF BLINK LED SENS 1

SW3 LED OFF BLINK LED SENS 2

Analogue LoopConnection

NAS-2

24 VccEN54-4 Input

Analogue LoopConnection

NAS-2

24 VccEN54-4 Input


15 997-528-000-1, Issue 1October 2005

3 User Guide

Use

r G

uid

e

1

2

NAS-2

Esc

2

4

3

5

Prog1

3.1 Control Keys

NAS-2 detector has 5 control keys to configurethe flow levels, alarms and faults that aremanually or automatically resettable from thecontrol panel, display operating hours, etc.

Press the up-arrow key (2), when you areoutside the Configuration Menu, to display thePower Input 1 with 100mV resolution.

Press the down-arrow key (4), when you areoutside the Configuration Menu, to display thePower Input 2 with 100mV resolution.

Note: This information is only displayed ifSW1=OFF (PSU2 enabled).

POWER DC1 27,5

POWER DC2 26,4

SYSTEM NORMAL

G52 A53 S62 I40

Press ESC (5) key, for a few seconds, todisplay the configured flow levels and thecurrent value.

In this example, on pressing ESC key, thedisplay shows that the current value is 53, theHIGH FLOW value is 62 and the LOW FLOWvalue is 40. The value saved on configurationwas 52.


16997-528-000-1, Issue 1October 2005

3.2 Aspirating System Configuration

Press key Prog (1) to access the Configurationmenu and key in the correct passcode.

On pressing Prog, NAS-2 will activate the faultrelay, communicating to the remote system thatsomeone is configuring the system.

The first display indicates the Hardwareversion.

You are then asked to enter the passcode tobe able to programme the system. The defaultpasscode is 4422, that is, you should pressdown-arrow key (4) twice and up-arrow key (2)twice as well.

The first menu is for language selection. Thereare eight languages available: Spanish,Swedish, French, English, Italian, Portuguese,German and Dutch.

The remaining menus appear by pressing thedown-arrow key (4). To leave the programmingprocess at any moment, press PROG keyagain.

In order to modify parameters, press Enter (3)key, and then press down-arrow key (4) todisplay the various options.

Press again Enter (3) key to go to the followingmenu.

Up-arrow key (2) has no function at theconfiguration process. As it is a sequentialmenu, to go back to the previous menu, pressdown-arrow (4) repeatedly and scroll down allthe menus to access the first one again.

Use

r G

uid

e

H.WARE VERS= 1.0

Passcode ?

Lang. = English


17 997-528-000-1, Issue 1October 2005

General Menus

After entering the correct Passcode, the firstmenu will be displayed (language display), andthen the rest of the general menus on pressingdown-arrow (4) key, in the following order:

Use

r G

uid

e

Lang. = English

INITIAL ADJUST?

MANUAL FLT RESET

MANL. ALARM RESET

CLEAR OPER. HR?

ADJ. FLOW LEVEL?

HISTORIC LOG


18997-528-000-1, Issue 1October 2005

Language Menu

Press the Enter key to change the languagewhen any of the available languages aredisplayed. Press the down-arrow (4) key toscroll through the languages.

Use

r G

uid

e

Press down-arrow (4) key to display the following option:

Press Enter, to go back tothe rest of the generalmenus.

Press the down-arrow (4) key to displaythe following available languages.

Down-arrow (4) key

Idioma = Español

Språk = Svenska

Langue = FRANCAIS

Lang. = ENGLISH

Idioma = Português

Sprache? = Deutsc

TAAL=NEDERLANDS

Down-arrow (4) key

Down-arrow (4) key

Down-arrow (4) key


19 997-528-000-1, Issue 1October 2005

Remaining Menus:

The flow level is saved in the Initial Adjust atthe end of the installation.

Use

r G

uid

e

Press down-arrow (4) key togo to the following menu.

Press Enter (3)

Press ESC (5) keyto go to the followingmenu. This valuewill be saved asInitial Adjust.

Press Enter (3)key to togglebetween theseoptions.

* The default option is�Non-latch faults�.

(continued on next page)

INITIAL ADJUST ?

MANUAL FLT RESET

FLOW LEVEL 69%

MANUAL FLT RESET

NON-LATCH FAULTS*

MANL. ALARM RESET

Press Enter (3)

Press down-arrow(4) key to go to thefollowing menu.



20997-528-000-1, Issue 1October 2005

Use

r G

uid

e


Press Enter (3)

Press Enter (3)key to togglebetween theseoptions.

* The default option is�Manual alarm reset�.

(continued on next page)

OPER. HRS = 0000

CLEAR OPER. HR?

EMPTY MEMORY

MANL. ALARM RESET

Press Enter (3)

MANL. ALARM RESET

NON-LATCH ALARMS*


Press ESC (5) key to goto the previous menu.

Time counter andhistoric log are reset.

ADJ. FLOW LEVEL ?



21 997-528-000-1, Issue 1October 2005

Use

r G

uid

e


Press Enter (3)

HISTORIC LOG

Press Enter (3)

Press down-arrow(4) key to return tothe first generalmenu.

HIGH FLOW = 60

LOW FLOW = 40



INITIAL ADJUST ?

ADJ. FLOW LEVEL ?

Use arrow keys tochange the value:

Up-arrow (2): + 1Down-arrow (4): - 1


8 last events aredisplayed

Press Enter (3)


22997-528-000-1, Issue 1October 2005

3.3 Alarm and Fault Indication

The aspirating system has a fault relay with C,NC and NO contacts (J5) which indicates anysystem trouble due to a power fault (21-29 Vdc)or because low and high flow thresholds areout of range. (Note that flow levels are user-configurable).

Use

r G

uid

e

S51 A50 H60 L40

60

40

50

Time

S51 A50 H60 L40

60

40

50

Time

In the above example, the flow level valuesaved is 51, the high flow threshold is set to60 and the low flow threshold is set to 40. Thecurrent flow value is 50.

Fault relay operation

When the system is powered and no faults arepresent, that is, in normal condition, the relayis energized with continuity between C (J5-1)and NC (J5-2) terminals.

In case of fault, the continuity is between C(J5-1) and NO (J5-3) terminals.

The drawing shows therelay normal condition(no faults present).


23 997-528-000-1, Issue 1October 2005

4 Technical Specifications

Material: ................................... metal cabinet, colour RAL 7021

Display: ..................................... LCD with 16 characters

State indicators: ........................ 4 LEDs: fault, alarm 1, alarm 2 andpower

Relays: ..................................... 2 alarm relays (one per sensor) +1 general fault relay

Maximum current consumption at 24Vdc:....................................... 260 � 350 mA

Voltage range of remote indicator to signal the alarm condition:....................................... 3-30Vdc

Cable inlets: .............................. 2 x PG13.5

Sampling pipe inlets: ................ 2 x 25-27mm

Pipe installation: ....................... PVC or ABS red 27mm

Maximum pipe length recommended:....................................... 100 m

Fan type: .................................. Radial

Fan life: .................................... 65,000 hours at 40 ºC

Dimensions: ............................. 355 x 245 x 112 mm (including inputcable conduits)

Weight: ..................................... 5 Kg

Tech

nic

al S

pec

ific

atio

ns

Charles AvenueBurgess HillWest SussexRH15 9UF

T: +44 (0) 1444 230 300F: +44 (0) 1444 230 888E: [email protected]

local distributorEvery care has been taken in the preparation of this document but no liability can be accepted for the use of the information therein. Design features may be changed or amended without prior notice.

Quality Systems Certificate No. 154Assessed to ISO9001

LO

SS

PR

EV

EN

T

ION

CERTIFICAT

ION

BO

A

RD

007

nas-2 - notifier · other notifier smoke sensors can be used ... 1.3 system operation the nas-2...

Documents