FUME HOOD AUTO-SASH CONTROLLER - TEL...• Pollution Degree 2: Normally only non-conductive pollution occurs. Occasionally, however, temporary conductivity caused by condensation must

Installation & Operating Manual

Temperature Electronics Ltd.Unit 2, Wren Nest RoadGlossop, SK13 8HBUnited Kingdom

Authorised Australian Distributor:

T: 08 9409 1789 | F: 08 9309 1206 A: 45 Attwell Street, Landsdale WA 6065

E: [email protected] www.johndecplastics.com.au

FUME HOODAUTO-SASH CONTROLLER

Table of Contents

1 Safety 6

1.1 Safety Practices 61.2 Warning Notices 61.3 Precautions 71.4 General Operating Conditions 71.5 Environmental Conditions 71.6 Electrical Safety 81.7 Electrical Protection 91.8 EMC Compliance 91.9 Warning Labels 9

2 Overview of the fume hood Auto-Sash Controller 11 52.1 Features 112.2 Auto-Sash Control Options 122.2.1 Auto-Sash Controller with Tiptronic Open/Close Control 122.2.2 Auto-Sash Controller with Sash Low Micro-Switch 132.2.3 Auto-Sash Controller with Sash Low Proximity Switch 132.3 Control System Components 142.3.1 Auto-Sash Control Unit 152.3.2 Personnel Sensor 162.3.3 Keypad/Alarm Panel 172.3.4 Sash Light Curtain 182.3.5 Under Sash Sensor 192.3.6 Sash Low Switch 192.3.7 Sash Position Sensor 202.3.8 Tilt Switch 202.3.9 Foot Switch 212.3.10 Sash Drive Unit 21

3 Installing the Auto-Sash Control System Components 23

3.1 Auto-Sash Control Unit 233.1.1 Mounting the Unit 233.1.2 Wiring in the Auto-Sash Control Unit 243.2 Auto-Sash Keypad/Alarm Panel 263.2.1 Fitting the Auto-Sash Keypad/Alarm Panel 263.3 Auto-Sash Motor Drive Unit 273.3.1 Rack and Pinion Motor Drive 283.3.2 Chain and Sprocket Drive 313.3.3 Wire and Pulley Drive 333.4 Sash Light Curtain 343.4.1 Installing the Sash Light Curtain Control Box 34

Table of Contents

3.4.2 Installing the Sash Light Curtain Transmitter and Receiver 343.4.3 Aligning the Light Curtain Transmitter and Receiver 353.5 Installing and Aligning the Under Sash Sensor 393.6 Tilt Switch 413.7 Sash Low Switch 423.7.1 Installing the Sash Low Micro-Switch 423.7.2 Installing the Sash Low Proximity Switch 433.8 Sash Position Sensor 443.9 Personnel Sensor 463.9.1 Installing the Personnel Sensor 463.9.2 Adjusting the Personnel Sensor Beam Width 483.9.3 Personnel Sensor Dip Switch Settings 503.10 Auto-Sash System Control Box - General Wiring Diagram 51

4 Setting Up and Calibration of Auto-Sash Control Unit 53

4.1 Starting Up the Auto-Sash Control Unit 534.2 Calibrating the Auto-Sash Control Unit for Tiptronic Operation using the Auto-Sash Keypad 544.3 Calibrating the Sash Lock Function 554.4 Calibrating the Safety Light Curtain 574.5 Calibrating the Tilt Switch 604.6 Calibrating the Sash Position Sensor 604.7 Calibrating the Personnel Sensor 604.8 Calibrating the Sash Low Switch 60

5 System Menus 62

5.1 Accessing System Menus 645.2 Navigating the System Menus 655.2.1 Keypad Tones 655.2.2 Sash 1 Settings Menu 655.2.3 BMS Input Settings Menu 665.2.4 BMS Output Settings Menu 67

Table of Contents

6 Operation 70

6.1 Control Philosophy 706.2 Modes of Operation 706.2.1 User Present 706.2.2 User Not Detected 716.2.3 Auto-Open(UserConfigurable) 716.2.4 Sash Lock 726.2.5 BuildingManagementSystem(BMS)Inputs 726.3 Operation and Alarm Indication 726.3.1 RUN Mode 726.3.2 Alarm Conditions 73

7 Troubleshooting 77

7.1 Faults and Alarms 77

8 Limitation of Warranty and Liability 79

9 Auto-SashControllerSeriesSpecification 81

1. SAFETY

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FUME HOOD AUTO-SASH CONTROLLER Installation & Operating Manual

1 SAFETY

1.1 Safety Practices

ThisdocumentdescribesthegeneralsafetypracticesandprecautionsthatmustbeobservedwhenoperatingtheAuto-SashController.

Thisadviceisintendedtosupplement,notsupersede,thenormalsafetycodesintheuser’scountry.Theinformationprovideddoesnotcovereverysafetyprocedurethatshouldbefollowed.Ultimately,maintenanceofasafelaboratoryenvironmentistheresponsibilityoftheuserandtheuser’sorganisation.

PleaseconsultalldocumentationsuppliedwiththeAuto-SashControllerbeforestartingtowork.Carefullyreadthesafetyinformationinthisdocumentandintheotherdocumentationsupplied.Whensettinguptheequipmentorperforminganalysisormaintenanceprocedures,strictlyfollowtheinstructionsprovided.

1.2 Warning Notices

WithinthisUserGuideWARNINGSareusedtohighlightinformationorinstructionsthatmustbefollowedinordertoavoidpersonalinjurytoyourselforotherpeopleinthevicinity,eg.switchoffthemainsvoltagebeforeanymaintenance.

WARNINGS appear as below:

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1.3 Precautions

The following precautions must be observed when using the Auto-Sash Controller and associated systems:

•BesurethatthevoltageoftheAuto-SashControllerequipmentcorrespondstothevoltageavailablewhereitistobeinstalled.

•NeverremovethesideorbackpanelsoftheAuto-SashControllerwithoutfirstshutting down the equipment and disconnecting the mains cord.

1.4 General Operating Conditions

TheAuto-SashControllerandequipmenthavebeendesignedandtestedinaccordancewiththesafetyrequirementsoftheInternationalElectrotechnicalCommission(IEC).TheAuto-SashControllerconformstoIEC61010-1(SafetyRequirementsforelectricalequipmentformeasurement,controlandlaboratoryuse)asitappliestoIECClass1(earthed)appliances,andthereforemeetstherequirementsofECdirective73/23/EEC.

Ifpossible,avoidanyadjustment,maintenanceorrepairtotheequipmentwhilstcoversareopenoritisoperative.However,ifanyadjustment,maintenanceorrepairisnecessarywhilethecoversareopen,thismustbedonebyaskilledpersonwhoisawareofthehazardsinvolved.

Whenever circumstances arise that mean an Auto-Sash Controller may be unsafe, make it inoperative. In particular, an Auto-Sash Controller may be unsafe if it:

•Showsvisibledamage.

•Failstoperformcorrectly.

•Hasbeensubjectedtoseveretransportstresses.

•Hasbeensubjectedtoprolongedstorageinunfavorableconditions.

1.5 Environmental Conditions

The Auto-Sash Controller should only be used under the following conditions:

• Indoors.

•Inambienttemperaturesbetween5°Cand40°C.

•Withrelativehumiditybelow80%fortemperaturesupto31°C,decreasinglinearlyto50%relativehumidityat40°C.

•Electricalsupplyfluctuationsnotexceeding+10%ofthenominalvoltage.

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1.6 Electrical Safety

The Auto-Sash Controller and associated equipment are designed to protect the user frompotentialelectricalhazards.Thissectiondescribessomerecommendedelectricalsafetypractices.

TheAuto-SashControllerandassociatedequipmentmustbecorrectlyconnectedtoasuitableelectricalsupply.Thesupplymusthaveacorrectlyinstalledprotectiveconductor(earthorground)andmustbeinstalledandcheckedbyaqualifiedelectricianbeforeinitial power up.

When working with the Auto-Sash Controller System:

• Connect the equipment to a correctly installed mains power outlet that has a protective conductor connection.

• Do not operate the equipment with any covers or internal parts removed.

•Disconnecttheequipmentfromalllivevoltagesourcesbeforeopeningittomakeanyadjustments,replacements,maintenanceorrepair.Iftheopenedequipmentmustbeoperatedforfurtheradjustment,maintenanceorrepair,thismustonlybedonebyasupplier’s Service Engineer.

Ifitispossiblethattheequipmentisnolongerelectricallysafeforuse,maketheequipment inoperative and secure it against any unauthorised or unintentional operation.

The electrical safety of the equipment is likely to be impaired if:

•Ithasanysignsofvisibledamage.

•Ifithasbeensubjectedtoprolongedstorageinunfavourableconditions.

•Ifithasbeensubjectedtoseverestressduringtransportation.

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1.7 Electrical Protection

Observe the following electrical protection precautions:

•Insulation:ClassIratingforexternalcircuits.OnlyconnectequipmentthatmeetstherequirementsofIEC61010-1,IEC60950orequivalentstandards.

•InstallationCategory:Theequipmentisabletowithstandtransientover-voltagestypicallypresentonthemainssupply.Thenormalleveloftransientover-voltagesisimpulsewithstand(overvoltage)CategoryIIofIEC60364-4-443.

• Pollution Degree 2: Normally only non-conductive pollution occurs. Occasionally, however,temporaryconductivitycausedbycondensationmustbeexpected.

1.8 EMC Compliance

EC DirectiveThe Auto-Sash Controller System is designed and tested to meet the requirements oftheECdirective89/336/EECand93/68/EECandcomplieswiththeEMCstandardEN61326(EMCstandardforelectricalequipmentformeasurement,controlandlaboratoryuse)andEN55011(ISM)ClassA(RFemissions).

FCC Rules and RegulationsTheAuto-SashControllerSystemisclassifiedasadigitaldeviceusedexclusivelyasindustrial,commercialormedicaltestequipment.ItisexemptfromthetechnicalstandardsspecifiedinPart15oftheFCCRulesandRegulationsbasedonSection15.103(c).

1.9 Warning Labels

Warninglabelsattachedtotheequipmentdrawattentiontospecifichazards-refertothisguideandotherdocumentationprovidedwiththeequipmentformoredetailsconcerningpotentialhazardsandanyprecautionsorotheractionsthatmustbetaken.

2. OVERVIEW OF THE FUME HOODAUTO-SASH CONTROLLER

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TheAuto-SashControllerautomatestheopeningandclosingofthefumehoodsash.Automationofthesashmovementprovidesanincreasedlevelofsafetytothecontrolledenvironmentassashescannotbe‘accidentally’leftopenandcanrespondtosafetycriticalinputsfromexternalsourcessuchasfirealarmsandventilationsystemfailures.

Suchautomationalsofacilitatescostsavings,iflinkedtoventilationcontrols,asautomaticallyclosinganunattendedfumehoodallowsextractorfanspeedsandelectricityconsumptiontobereduced.

2.1 Features

The Auto-Sash Controller has the following features/functionality:

1. Auto-Close-Thesashcanbeautomaticallyclosedwhenthefumehoodisunattended.

2. Auto-Open-Thesashcanautomaticallyopen(orre-openifpreviouslyautomaticallyclosed)whentheoperatorreturns.

3. Sash Lock-Thesashcanbeprogrammedtolock,ie.Auto-SashDriveinhibited,whenmovedtoauserdefinedposition,eg.fullyopen,toallowforloadingorsettingupofequipmentinsidetheFumeCupboard.

4. Manual Sash Open/Close-Allowsthesashtobeopenedorclosedmanually.

5. Keypad Pushbutton Open/Close-ThesashcanbeopenedorclosedusingtheKeypadpushbuttons.

6. Footswitch-Thesashcanbeopenedorclosedusinganoptional,thirdpartysupplied,footswitch.

7. Tilt Switch-Anoptional,thirdpartysupplied,tiltswitchcanbeusedtodisabletheAuto-SashControlUnitwhenthesashisopenedformaintenance.

8. Building Management System (BMS) Inputs - The sash can automatically close whenasignalisreceivedfromtheBMS,eg.intheeventofafirealarm.

9. Building Management System (BMS) Outputs - The Auto-Sash Controller can sendanumberofsignalstotheBMSregardingthecurrentstatusofthefumehood, eg. sash position, alarm status.

2 OVERVIEW OF THE FUME HOODAUTO-SASH CONTROLLER

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2.2 Auto-Sash Control Options

Three main control options can be utilised by the Auto-Sash Controller to control the opening and closing of the fume hood sash:•Auto-SashControllerfittedwithTiptronicOpen/CloseControl.•Auto-SashControllerfittedwithSashLowMicro-Switch.•Auto-SashControllerfittedwithSashLowProximitySwitch.

2.2.1 Auto-Sash Controller with Tiptronic Open/Close Control

TiptronicOpen/Closecontrolisthedefaultcontrolsetup,usingaSashPositionSensor(sprungpotentiometer)withadrawwire(1.2mlong)attachedtoeitherthesash or the counterweight. The Auto-Sash Controller can then be calibrated to give one of the following methods of operation:

Method A - Close only(bottompositiononlycalibrated)Thesashautomaticallydrivestothebottompositionwhentheoperatorisnotpresent. Pressing the Downpushbuttondrivesthesashtothebottompositionwhenthe operator is present. The Uppushbuttonisdisabled.

Method B - 2-Position(bottomandmid-positionscalibrated)Thesashautomaticallydrivestothebottompositionwhentheoperatorisnotpresent.PressingtheDownpushbuttondrivesthesashtothebottompositionwhentheoperatorispresent.PressingtheUppushbuttondrivesthesashtothemid-position when the operator is present.

IftheTiptronicfeatureisenabled,manuallytip(move)thesashupwards-thesashdrives to the mid-position. Manually tip the sash downwards - the sash drives to the bottomposition.

IftheAutoOpenfeatureisenabled,thesashautomaticallydrivestothemid-positionwhentheoperatorispresent(slighttimedelayfollowinguserdetection).

IftheAutoLockfeatureisenabledandaSashLockpositionhasbeencalibrated,oncethesashisraisedtoapositionequaltoorabovetheSashLockpositionthesashlocksinitscurrentpositionandtheAutoClosefeatureisdisabled.ThisfacilitatesloadingoftheFumeCupboard.

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Method C - 3-Position(bottom,midandtoppositionscalibrated)Thesashautomaticallydrivestothebottompositionwhentheoperatorisnotpresent.PressingtheDownpushbuttondrivesthesashtothebottompositionwhentheoperatorispresent.PressingtheUppushbuttondrivesthesashtothenextcalibratedpositionwhentheoperatorispresent,ie.ifthesashislowerthanthemid-positionthesashisdriventothemid-position,ifthesashishigherthanmid-positionthesashisdriven to the top position.

IftheTiptronicfeatureisenabled,manuallytip(move)thesashupwards-thesashdrivestothenextcalibratedposition.Manuallytipthesashdownwards-thesashdrivestothebottomposition.

IftheAutoOpenfeatureisenabled,thesashautomaticallydrivestothemid-positionwhentheoperatorispresent(slighttimedelayfollowinguserdetection),ifthesashislower than mid position.

IftheAutoLockfeatureisenabledandaSashLockpositionhasbeencalibrated,oncethesashisraisedtoapositionequaltoorabovetheSashLockpositionthesashlocksinitscurrentpositionandtheAutoClosefeatureisdisabled.ThisfacilitatesloadingoftheFumeCupboard.

2.2.2 Auto-Sash Controller with Sash Low Micro-SwitchIftheTiptronicOpen/Closecontroloptionisnotchosen,aSashLowMicro-SwitchcanbespecifiedforfittingbyTELorbythefumehoodmanufacturer.Theswitchcanbearrangedtobeclosedoropenwhenthesashisclosed,dependingonhowandwheretheswitchisfitted.Thewiringarrangementmustbemodifiedtosuittheparticularinstallationandtheoperationalrequirementsofthefumehood.

The following functionality is available:

•Thesashautomaticallydrivestothebottompositionwhentheoperatorisnotpresent.

•PressingtheDownpushbuttondrivesthesashtothebottompositionwhentheoperator is present.

•TheUppushbuttonisdisabled.

2.2.3 Auto-Sash Controller with Sash Low Proximity SwitchIftheTiptronicOpen/Closecontroloptionisnotchosen,aSashLowProximitySwitchcanbespecifiedforfittingbyTELorthefumehoodmanufacturer.Theswitchcanbearrangedtobeclosedoropenwhenthesashisclosed,dependingonhowandwheretheswitchisfitted.Thewiringarrangementmustbemodifiedtosuittheparticularinstallationandtheoperationalrequirementsofthefumehood.

The following functionality is available:

•Thesashautomaticallydrivestothebottompositionwhentheoperatorisnotpresent.

•PressingtheDownpushbuttondrivesthesashtothebottompositionwhentheoperator is present.

•TheUppushbuttonisdisabled.

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2.3 Control System Components

TheAuto-SashControlSystemcomprisesacontrolunitaccompaniedbyanumberofadditional components and options depending on the installation.

Note: ThisexampleinstallationisfittedwithaPulleyandWireSashDrive.

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2.3.1 Auto-Sash Control UnitTheAuto-SashControlUnitprocessestheinputsfromthesensorsandswitchesassociatedwiththesashcontrolfunctionandoutputsrelevantsignalstothemotordrive(s)andalarmpanel.

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2.3.2 Personnel SensorThePersonnelSensorisaPassiveInfra-Red(PIR)occupancydetectorwhichdetectsthepresenceorabsenceofthefumehoodoperatorandpreventsthesashclosingautomaticallywhentheoperatorispresentatthefumehood.

Note:Iftheoperatorisdetected,thesashwillnotautomaticallyclosebutcanstillbeopenedandclosedeithermanuallyorbyusingtheUp/Downpushbuttons.

Onpowerup,thePersonnelSensor‘learns’thereflectioncharacteristicsoftheenvironmentwithinitsfieldofviewandstoresthisinformationasreferencebackgrounddata.Thesensorthen‘re-learns’thebackgroundeverythreeminutes,sothatifastationaryobject,suchasastool,isleftinthefielditwillbecomepartofthebackgroundand‘ignored’bythesensor.Then,whentheoperatorisnolongerpresentatthefumehood,thesashwillcloseautomatically,followingapre-setdelaytime,aslongastheSashLightCurtainisnotbrokenandthesashisnotalreadyclosed.

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2.3.3 Keypad/Alarm PanelTheKeypad/AlarmPanelprovidesavisualindicationofthestatusoftheAuto-Sash,includinganyfaultconditions,viaaLiquidCrystalDisplay(LCD).

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2.3.4 Sash Light CurtainTheSashLightCurtainisasafetydevicedesignedtodetectwhethertheopeningbelowthesashisclearofobstructionsbeforethesashisautomaticallyclosed.Whenanobstructionisdetected,thesashdriveisdisabledandthealarmactivated.TheSashLightCurtaincomprisesaninfraredtransmittermountedononesideofthefumehoodandaninfraredreceivermountedontheoppositesideofthefumehood’sinnerchamber.

Theinfraredtransmitterhasmultiple,closelyspaced,LightEmittingDiodes(LEDs)tofacilitatethedetectionofsmallobjects.

Objectsaredetectedwheninfraredlightfromthetransmitterisnotdetectedbythereceiverduetoanobstructioninitspath.

A separate Sash Light Curtain Control Box includes a sensitivity potentiometer thatallowsthebeamsensitivitytobesetto‘see’glassorotherobjectspartiallytransparenttoinfraredlight.

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2.3.5 Under Sash SensorThe Under Sash Sensor is used as an alternative to the Sash Light Curtain and is designedtodetectwhethertheopeningbelowthesashisclearfromobstructionsbeforethesashisdrivenclosed.

Asinglesensorononesideofthefumehooddetectsthereflectionofabeamoflightfromaself-adhesivestripofretro-reflectivetapemountedontheoppositeinsidewallofthefumehood.

Thesensorincorporatesapotentiometerwhichallowsthebeamsensitivitytobesetto‘see’glassobjects.

2.3.6 Sash Low SwitchThe Sash Low switch is used when the Tiptronic control option (see Section 2.2 - Auto-SashControlOptions)hasnotbeenchosenandisusedtosignaltotheAuto-SashControlUnitthatthefumehoodsashisclosed.

Theswitchcanbeeitheramechanicalrollerlevertypemicro-switchoraninductiveproximity switch.

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2.3.7 Sash Position SensorTheSashPositionSensor,comprisingaflexiblecable,aspring-loadedspoolandapotentiometer, is used in conjunction with the Tiptronic control option to detect and measureverticalsashmovementandthepositionofthefumehoodsash.

Duringtheinitialon-screencalibrationsetup(seeSection4-SettingUpandCalibrationofAuto-SashControlUnit),thesashcontrollerwilldetectthedirectionoftravelofthesensorandthenprovideinformationonthepositionofthesashtotheAuto-SashControlUnittoenablecalibrationofthesashopenandsashclosedpositions.

2.3.8 Tilt SwitchTheTiltSwitchisanoptional,thirdpartysupplied,componentfittedtothefumehoodtop panel which operates to isolate the Auto-Sash controls when the top panel is openedtofacilitateservicingofthefumehood.

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2.3.9 Foot SwitchThe Foot Switch is an optional, third party supplied, componentwhichcanbepositionedonthefloorinfrontofthefumehoodandisusedtoopenthesash.

2.3.10 Sash Drive UnitTheSashDriveUnitisagearedelectricmotorandclutchassemblyusedtodrivethesash open and closed.

Three types of drive are available, none of which preclude manual opening and closing of the fume hood:

• Rack and Pinion drive.

• Chain and Sprocket drive.

• Pulley and Wire drive.

3. INSTALLING THE AUTO-SASH CONTROL SYSTEM COMPONENTS

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The following section outlines the installation of the various components of the Auto-Sash control system.

Asthesizeandformatofindividualfumehoodsmayvaryconsiderably,specificinstallationinstructionsarenotpossible,thoughtheprinciplesoutlinedbelowshouldremain valid in all cases.

Note:Beforestartinginstallation,ensurethatthesashisfreetomoveinitsrunners.Usesiliconsprayonthesashrunnersoradjustthesashrunner’salignmentifthesashdoesnotmovefreely.

3.1 Auto-Sash Control Unit

3.1.1 Mounting the UnitThe Auto-Sash Control Unit can be mounted as follows:

•Screwedflattotheoutsideofthefumehoodroof(horizontalmounting).

Note: Forhorizontalmounting,thecontrolboxshouldalwaysbemountedwiththelid/frontpanelfacingupwards.

•Screwedtotheoutsidewalloffumehoodwall(verticalmounting).

OncetheAuto-SashControlUnithasbeenpositioned,markitspositionusingthefixingholesintherearofthehousingasatemplate.Then,attachtheAuto-SashControl Unit with screws.

3 INSTALLING THE AUTO-SASH CONTROL SYSTEM COMPONENTS

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3.1.2 Wiring in the Auto-Sash Control UnitOnafumehoodwithaninnerandoutersidewall,cablestoandfromsensors,themotordriveandtheAuto-SashControlUnitcanberoutedthroughthesidewallandinto the service void.

Onasinglewalltypefumehood,cablestoandfromsensors,themotordriveandtheAuto-SashControlUnitshouldberouteduptheoutsideofthesidewallusingsuitabletrunkingorfixingpadsandties.

When wiring in the Auto-Sash Control Unit, observe the following:

•Inallcases,cablesshouldbekeptclearofmovingpartssuchascomponentsofthemotor drive and sash.

•Inallcases,grommetsshouldbeusedwherecablespassthroughsidewallstopreventabrasionofthecableinsulationand/orsidewall.WhereacableissuppliedwithaDINconnector,thegrommetshouldhaveaminimuminternaldiameterof17mm(0.67”).

•Ensurethatanybendingofthecables,suchaswhenpassingat90°throughasidewall,doesnotleadtothembecomingoverstressed.

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3.2 Auto-Sash Keypad/Alarm Panel

AlternativeAuto-SashKeypad/AlarmPanelscanbesuppliedforUSandEUmarkets.Bothshouldbemountedonthefrontofthefumehood,ensuringthereisadequateclearancebehindforthecablesconnectingthekeypadtotheAuto-SashControlUnit.

3.2.1 Fitting the Auto-Sash Keypad/Alarm Panel

1. FittheAuto-SashKeypadtothefumehoodusingeitherasinglegangsocketforUKapplicationsor,forUSapplications,usingacut-outtothe(Version2)dimensions shown in Figure 20 and Figure 21:

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2. Connect the Keypad/Alarm Panel to the Auto-Sash Control Unit. See the wiring schematic in Section 3.10 - Auto-Sash System Control Box - General Wiring Diagram and Figure 22.

3.3 Auto-Sash Motor Drive Unit

AMotorDriveUnitisusedtoautomaticallyraiseandlowerthefumehood sash.

Three types of drive are available:

• Rack and Pinion Motor Drive.

• Chain and Sprocket Motor Drive.

• Wire and Pulley Motor Drive.

Theoptimalchoiceofsashdrivetypedependsonwhethertheinstallationispartofanewbuildoraretro-fit,thesizeandconfigurationofthefumehoodanditslocation.

Noneoftheseoptionsprecludemanualoperationofthesash.

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3.3.1 Rack and Pinion Motor DriveTheRackandPinionMotorDriveutilisesarackfitteddirectlyontothesashframeandamotordriveassemblyfittedtoaframeworkabovethefumehood.

Thisdrivesystemisidealforretro-fitinstallationswherethereisnoaccesstothesashwiresorcounterweightsand/orwherethesashisfittedtoametalframework,eg.combinationtypesashfumehoods.

3.3.1.1 Installing the Rack and Pinion Drive

1.Raisethesashtothefullyopenposition.

2.Offerupthemotorassemblyandracktoensurethatthereisaclearanceofatleast1.2m(47.24”)abovethetopofthesash.

•Therackissuppliedin1m(39.37”)lengths.

3.Themotordriveassemblyshouldbefittedtoarigidframeworkandpositionedcentrallyabovethesash.

ToensurethattheT-barfixingclearsthebottomofthemotorassembly,thereshouldbeatleast50mmbetweenthetopofthesashandthebottomofthemotordriveassembly,whenthesashisfullyopened

Note:Ensurethattherackisofsufficientlengthtostillprotrudethroughthetopofthemotorassemblywhenthesashisfullyclosed.

4.Oncethemotordriveassemblyisfixedtothefumehood,theT-barshouldbefixedtotherackandofferedupthesashframe.

5.EnsurethattherackisfreetomoveoverthefullsashopeningbeforemarkingupandfixingtheT-bartothesashframe.

Note:Therackmusttorunverticallyat90degreestothehorizontalaxisofthesashframe.

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6.Ifasashlowswitchisfittedinsteadofasashpositionsensor,therackwillneedtobecuttothecorrectlengthtoenabletheswitchtooperate.

Closethesashfullyandmarktherackjustbelowthepositionoftheproximitylowswitchatthetopofthemotorassemblytoensurethattherackisclearoftheswitch when the sash is closed.

7.ConnecttheSashDrivetotheAuto-SashControlUnitusingthecablesprovided(redandblackconnectors).SeethewiringschematicinSection3.10-Auto-SashSystem Control Box - General Wiring Diagram.

Note:Itisimportanttoobservethecorrectpolaritywhenmakingelectricalconnections.

8.ConnecttheclutchassemblytotheAuto-SashControlUnitusingthecablesprovided(blueandyellowconnectors).

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3.3.2 Chain and Sprocket Drive

Two types of chain and sprocket drive are available:

•ShaftDrive.

• Counterweight Drive.

3.3.2.1 Chain and Sprocket Shaft DriveWiththeShaftDrivearrangement,themotordriveutilisesataperboresprocketandarollerchaintodriveashaftrunningbetweenthecounterweightpulleys.

Themotorassemblyissuppliedfittedtoanadjustablebracketsothatthecorrectchaintensioncanbeset.

TheShaftDrivearrangementcanaccommodateoneortwosashwires.

3.3.2.2 Installing the Chain and Sprocket Shaft Drive

1.Fitthetaperboresprockettotheshaftandensurethatthesprocketissecurelyfitted.Themotordriveandsprocketshouldbepositionedcentrallyontheshaftwherepossibleandthemotorassemblyshouldbefittedtoarigidframeworktosupport the motor.

2.Looselyfitthechainbeforefixingthemotorplatetoensurethechainiscorrectlytensioned and aligned.

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3.3.2.3 Chain and Sprocket Counterweight DriveWith the Counterweight Drive arrangement, the chain and sprocket drive system isusedtodirectlyliftthesashcounterweightbyfittingarollerchaintothecounterweightandutilisingaseparatecounterweightandfreewheelingsprockettomaintain the correct chain tension.

3.3.2.4 Installing the Chain and Sprocket Counterweight Drive

1.Oncethemotor,chainandfreewheelingsprocketarefitted,manuallyopenandclosethesashtoensurethatthemotordriveisfreerunningandthechainisnottoo slack or too tight.

2. Fit the motor so that the drive sprocket is in line with the counterweight pulley.

3.Fitoneendofthechaintothecounterweightorsashwireincloseproximitytothecounterweight.

4.Fitthefreewheelingsprocketinlinewiththedrivesprocket.

5.Looselyfitthechainoverthefreewheelingpulleyanddeterminethebestpositionforthechaincounterweight.

6.Fitthechaincounterweightusingacounterweightguideifnecessary.

7.Oncethemotor,chainandcounterweightarefittedmanuallyopenandclosethesashtoensurethemotordrive,chainandcounterweightarefreerunning.

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3.3.3 Wire and Pulley DriveWith the Wire and Pulley Drive, the pulley motor drives the sash wire and can accept bothsingleanddualsashwiresystems.Themotorassemblyisfittedinlinewiththesash wires and uses two guide pulleys and a drive pulley.

Thepulleydriveisidealfornewfumehoodsbutcanberetro-fittedifalongerreplacementsashwirecanbefitted.

3.3.3.1 Installing the Wire and Pulley Drive

Themotorassemblycanbefittedhorizontallyorverticallyoneithersideofthefume hood, as follows:

1.Fitthemotorassemblysothattheguidepulleysareinlinewiththesashwire.

2.Runthesashwireoverthefirstguidepulley,aroundthedrivepulleyandthenoverthefinalguidepulley.

3. Once the motor drive is installed, open and close the sash to ensure that the sash cantravelfreely.

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3.4 Sash Light Curtain

The Sash Light Curtain consists of three main components and associated wiring:

• Sash Light Curtain Control Box.

• LED Transmitter.

• LED Receiver.

The Sash Light Curtain Control Box is connected to the main Auto-Sash Control Unit.

3.4.1 Installing the Sash Light Curtain Control Box

1.FixtheSashLightCurtainControlBoxontothetopofthefumehood,usingthetabsattachedtothecontrolboxandthescrewsprovided,ensuringthatthereisaccess to the terminals to connect the wiring.

2.ConnecttotheAuto-SashControlUnit,usingthepre-assembledcablesandconnectors supplied, as per the wiring schematic in Section 3.10 - Auto-Sash System Control Box - General Wiring Diagram.

3.4.2 Installing the Sash Light Curtain Transmitter and Receiver

1.Findasuitablepositionascloseaspossibletothebackofthesashtrack,ensuringthatthesashhandlewillnotprotrudeintothelightbeamandthattherearenootherobstructionsoneachsidewall.

Version 01 / p.35


2.Carefullyremovethefrontplasticcoversfromtherighthandsideofthelightcurtainreceiverandthelefthandsideofthelightcurtaintransmittercases.

3. Position the light curtain transmitter and receiver on oppositesidewallsensuringthatthebackofthesashhandledoesnotpenetratethelightbeampaths. Thesashlightcurtaintransmitterandreceivershouldbefittedsothattheircableentry/exitpointsareatthetop. Ensurethatthelightbeampathsarefreefromotherobstructions.

3.4.3 Aligning the Light Curtain Transmitter and ReceiverMounting the light curtain receiver and transmitter at the same height on opposing sidesofthefumehoodopeningwillusuallybesufficienttoalignthemcorrectlywithnofurtheradjustmentrequired.

Asmallerrorinalignmentisacceptable,theallowableerrorbeingdependentonthespacingbetweenthetransmitterandreceiver.

Figurebelow,illustratesthemaximumallowabletransmittertoreceivermisalignment/displacementfora0to3m(0to118.11”)rangeoffumehoodwidths.Ascanbeseen,foratypicalfumehoodwidthof1to2m(39.37to78.740”),themaximumallowablemisalignment/displacementrangesfromapproximately20to40mm(0.79to1.58”).

Version 01 / p.36


4.Theareaprotectedbythelightbeamsshouldcovertheopenareaunderthesash,typically500mm(20”)fromitsbase. Thelightcurtaintransmitterandreceivercanbepositionedabovethebottomofthesashinthefumehoodaslongastheyarefreefromobstructions. Inatypicalinstallation,thelightpathwouldbealignedflushtothebottomofthesash’sbase.

Note:Thereisa123mm(4.84”)gapfromthetopofthelightcurtaintransmittertothefirstLEDdownanda22mm(0.87”)gapfromthebottomofthetransmittertothefirstLEDup.

Version 01 / p.37


5. Oncethelightcurtaintransmitterandreceiverhavebeenpositioned,markthesidewallusingthefixingholesinthetransmitter and receiver as templates.

6.Drilltheholesforthefixingscrews,usingthe2mm(0.08”)drillbitprovidedandattachthetransmitterandreceiver.

7. Onaconventionalfumehoodwithaninnerandoutersidewall,thelightcurtaintransmitterandreceivercablescanrunthrough the sidewall into the service void and up to the Sash LightCurtainControlBoxontopofthefumehood. Ifthefumehoodisasinglewalltype,drilltheholeinthetopsoffitpanelandrunthecablesupthesidewallsusingsuitabletrunkingorfixingpadsandties. Ifagrommetisused,drillasuitableholeinthesidewalltoaccept the grommet. Ifnogrommetisused,drilla17mm(0.67”)holetoclearthecableDINconnector.

Note: Thehole’scentreshouldbeaminimumof35mm(1.38”)fromthetopofthelightbeampath,sothatthecableisnotstressedwhenitbends90°throughtheinnersidewall.

8.PassthecablesthroughthesidewallandconnecttotheSashLightCurtainControlBoxonthetopofthefumehood.

9. Connect the light curtain transmitter and receiver to the SashLightCurtainControlBoxusingtheplug-inRJ45cablesprovided.

Version 01 / p.38


10.ConnecttheoutputfromtheSafetyCurtainControlBoxtothe Auto-Sash Control Unit. See Section 3.10 - Auto-Sash System Control Box - General Wiring Diagram using the pre-assembledcablesprovided.

11. Fix the light curtain transmitter and receiver to the sidewall usingtheirfixingholesandre-fittheplasticcovers.

Version 01 / p.39


3.5 Installing and Aligning the Under Sash Sensor

The Under Sash Sensor consists of two components:

• Sash Sensor

• Retro-reflectiveTapeStrip

1.Fitthesensorsothatitslensisclearofobstructionsandbelowthebottomofthesashhandle.Asuitablebracketshouldbeusedsothatthesensorpositioncanbeadjustedtothebestposition.

2.Fixthe5mcableattachedtothesensortothesashwirealongitslength(wherepossible)usingcabletiesandattachtothesashcounterweighttokeepthecabletaught as the sash opens and closes. Thecableslackfromthesashcounterweightothesashcontrollerboxcanbeencasedinplasticsheathingtoguidethecableandstopitfromsnagging. Thecablecanbeattachedtothesashusingsmalldiametertrunkingifitisnotpossibletofixthecabletothesashwire. Arollerbearingorpulleyshouldbeusedwherethecablerunsoveranymetalsurface.

Version 01 / p.40


3.Fixtheretro-reflectivetapestriptotheinsideofthefumehoodontheoppositeside to the sensor. Thecentreoftheretro-reflectivetapestripshouldbepositionedinlinewiththecentreofthesensorwherepossiblehowever,asmalloffsetbetweenthesensorandretro-reflectivetapestripisacceptable.Themaximumoffsetvalues,forarangeoffumehoodwidths,areillustratedinFigure40overleaf.

Version 01 / p.41


For example, on a 1000mm wide Fume Hood the sensor can detect the retro-reflectivestripupto+/-20mmeithersideoftheUnderSashSensor’scentreline.

4. Connect to the Auto-Sash Control Unit as per the wiring diagram in Section 3.10 - Auto-Sash System Control Box - General Wiring Diagram.

3.6 Tilt Switch

AsTiltSwitchesareprovidedinavarietyofforms,specificinstallationinstructions are not possible, though the following applies in all cases:

•EnsurethattheTiltSwitchisinstalledinthecorrectorientationieis‘open’whenthefrontpanelisclosedand‘closed’whenthefrontpanelisopen.

• Connect the Tilt Switch to the Auto-Sash Control Unit as per the wiring schematic in Section 3.10 - Auto-Sash System Control Box - General WiringDiagramandtheschematicinError!Referencesourcenotfound.

•IfaTiltSwitchisnotused,linkout/connecttogethertherelevantterminalson the Auto-Sash Control Unit – see wiring schematic in Section 3.10 - Auto-Sash System Control Box - General Wiring Diagram.

Version 01 / p.42


3.7 Sash Low Switch

Two types of Sash Low switch can be employed:

• Micro-Switch.

• Proximity Switch.

Inbothcases,theswitchcanbeemployedsothatthesashissignalledasbeingopenwhentheswitchis‘open’or‘closed’dependingontherequirementsoftheparticularinstallation.

3.7.1 Installing the Sash Low Micro-SwitchTheSashLowMicro-Switchisachange-overtypeswitchsocanbesetuptoeithermakeorbreakwhenthesashisclosedaslongasthecorrectterminalsareusedontheswitchforeachtypeofactivation.Typically,theswitchwouldbefittedsothattheleverengages(pushesin)whenthesashisopen.

Connect the Sash Low Micro-Switch to the Auto-Sash Control Unit as per the wiring schematic in Section 3.10 - Auto-Sash System Control Box - General Wiring Diagram and the schematic in Figure 42.

Iftheswitchisinstalledsothattheleverpushesinwhenthesashisclosed,connectthe wiring to the Auto-Sash Control Unit to terminals C and NO on the switch.

Iftheswitchisinstalledsothattheleverpushesinwhenthesashisopen,connectthe wiring to the Auto-Sash Control Unit to terminals C and NC on the switch.

Version 01 / p.43


3.7.2 Installing the Sash Low Proximity SwitchThe Sash Low Proximity Switch is an inductive switch that operates when it comes withinrangeofametalplateattachedtothesash,ie.whenthesashisclosed.Dependingonthetypeofswitchselected,thecircuitcanbeeithermadeorbrokenwhenthesashisclosed.Typically,theswitchwouldbefittedsothattheswitchisclosed when the sash is open.

Connect the Sash Low Proximity Switch to the Auto-Sash Control Unit as per the wiring schematic in Section 3.10 - Auto-Sash System Control Box - General Wiring Diagram and the schematic in Figure 43.

Note 1: Inbothcases,iftheAuto-Sashcontrolisbeingretro-fittedtoafumehood,ensuresufficientfixingbracketadjustmentisprovidedtoallowforanyover-travelofthe sash.

Version 01 / p.44


3.8 Sash Position Sensor

Thesashpositionsensorisfittedwithamountingbracketwhichcanbefittedinfourdifferentorientationstoenablethesensordrawwiretobecorrectlyaligned.

1.Offerupthesensortodeterminethebestfixingpositiononthefumehoodframework. Forbestresults,thesensordrawwireshouldrunstraightoutofthesensorhousinginlinewiththecablehousingextension.Incaseswherethewirehasrunatanangletothesensor,ensuretheangleisassmallaspossibletoensurethatthewiredoesnotrubonanypartofthesensorbodyincludingthecablehousingextension.

2.Markthefixingholesintheframeworkandattachthesensor. Thefixingbrackethastwo0.37mm(0.015”)diameterfixingholes.

Note:Ensurethatthesensorisinasuitablepositiontoensurethatthedrawwiredoesnotoverextend.Thesensordrawwirefullstrokeis1270mm(50”)maximum.

Version 01 / p.45


4.Oncethesensorisfitted,manuallyopenandclosethesashtoensurethatthesensor is installed correctly and does not snag.

3. Attach the draw wire to either:

•Thesashusingasuitablysizedscrew-thedrawwirehasa9.53mm(0.38”)diameterfixingringwitha4.85mm(0.18”)diameterfixingholeinitscentre.

•Thesashcableusingacabletie,ensuringthatthefixingringdoesnotrunoverpulleys etc.

•ThecounterweightusingacabletieasshowninFigure46.

Version 01 / p.46


3.9 Personnel Sensor

The Personnel Sensor is supplied as a single transmitter/receiver unit.

3.9.1 Installing the Personnel Sensor

1.UsethemountingtemplateillustratedinFigure47andfixingscrewsprovidedtofixthePersonnelSensorcentrallytothefrontofthefumehood,abovethefumehoodsash,usingthefixingholesinthebackofthesensor. RefertothetableinFigure47forthecorrectmountingholedimensionsandlocations.

ThePersonnelSensorshouldbepositionedsothatitpointsstraightdown,withthehorizontal(long)axisofthesensorparalleltothehorizontal(long)axisofthefumehood. See Figure 48.

Note: Donotmountthesensorhigherthan2500mm(98”)fromthelaboratoryfloor.

Version 01 / p.47


2.Fittheconnectioncabletothesensorcableinsidethesensorhousing.

3.Plugthe4-wayterminalblockintotheAuto-SashControlUnit.Seewiringschematics in Section 3.10 - Auto-Sash System Control Box - General Wiring Diagram and Figure 49.

Version 01 / p.48


3.9.2 Adjusting the Personnel Sensor Beam WidthItispossibletoadjustthewidthofthePersonnelSensor’sbeamtosuitdifferentwidthsoffumehoods.

To adjust the beam width:

1.Accessthetwopotentiometersunderthesensor’sfrontcoverasillustratedinFigure50below.

2. ReferringtoError!Referencesourcenotfound.below,adjustthewidthofthePersonnelSensorbeamusingthetwopotentiometerstoachievethebestfieldcoverageinfrontofthefumehoodforthehood’sparticularwidth.

Version 01 / p.49


3.9.2.1 Adjusting the Beam DepthReferringtoFigure52belowadjustthesensorbytiltingthebottomofthesensortowardsorawayfromthefrontwallofthefumehood,sothatitsbeamisatoptimumanglefromthefumehoodtoachievethebestfieldcoveragefortheparticularfumehood’s height.

ThebodyofthePersonnelSensorcanbetiltedfrom0oto5ointhreeincrementstoachieve this.

Version 01 / p.50


3.9.3 Personnel Sensor Dip Switch SettingsThefollowingPersonnelSensorfunctionsandparametersarecontrolledbyDipswitches, located within the Sash Light Curtain Control Box. See Section 4 - Setting Up andCalibrationofAuto-SashController.

Switches 1 and 2: Presence Timer.SelectthetimedelaybeforethePersonnelSensor‘re-learns’thebackgroundifastationaryobjectisdetected.

2,15,60or180seconddelaysareselectedbysettingassociatedswitches1and2tocombinationsofON/OFF.SeeFigure53.

Note: Thetimerwillresetifanymovementisdetectedduringthetimeperiod.

Switches 3 and 4: Pattern Depth.Setsthedistanceofthedetectionfieldawayfromthesensor.

Switches 5 and 6: Frequency.Allowstheselectionofuptofourdifferentsensorfrequencies(H;MH;MandL)iftwoormoresensorbeampathsoverlap.

Switch 7: Monitor Mode.SelectstheMonitorMode.The‘Snow’settingisonlyapplicabletooutdoorapplicationsandthereforeisnotused.Theswitchshouldbesetto‘Normal’.

Switch 8: Self Diagnostics.Ifthesensorissuspectedofnotworking,selectingswitch8to‘ON’willstartaselfdiagnostictestwhenthesensorisswitchedon.IfthetestdetectsafaulttheLEDwillcontinuallyflickerredandgreen.

Version 01 / p.51


3.10 Auto-Sash System Control Box - General Wiring Diagram

4. SETTING UP AND CALIBRATION OF AUTO-SASH CONTROL UNIT

Version 01 / p.53


BeforeStartinguptheAuto-SashController,ensurethatallAuto-SashControlSystemcomponentshavebeencorrectlyinstalledandthatallconnectionshavebeenmade.

Note 1:Checkthatthefumehoodsashandassociatedmotordrives,pulleys,operatingcables,racksandchainsmovefreelyovertheirentireoperatingrangeswithoutbindingorcatchingonadjacentcomponents.

Note 2:Checkthatallcablesaresecuredawayfrommovingcomponentsandthatnone are overstressed or damaged.

Note 3:Checkthesecurityofallelectricalconnections.

4.1 Starting Up the Auto-Sash Control Unit

TheAutoSashControllerisstartedbypressingthePowerUp/MenuEntryButtonillustrated in Figure 5 / Figure 6.

1. Switch on the Auto-Sash Control Unit. Onpowerup,theAuto-SashControlUnitperformsaself-testofitsfunctions,LEDsandtheaudiblealarmwhichtakesapproximately3seconds. Duringtheself-testperiod,allinputsandoutputsarede-activated.

2. At the end of the self-test, the Auto-Sash Control Unit will do one of two things: If the Auto-Sash Control Unit has previously been calibrated: • The Auto-Sash Controller will enter Normal Operating Mode and display its

current status or alarm condition on the display. If the Auto-Sash Control Unit has not been calibrated:

•WhentheTiltSwitchinputisopen,thedisplaywillshow‘SashDriveInhibited’.

•WhentheTiltSwitchinputisclosed,thedisplaywillshow‘Auto-SashNotConfigured’.

4 SETTING UP AND CALIBRATION OFAUTO-SASH CONTROL UNIT

Version 01 / p.54


4.2 Calibrating the Auto-Sash Control Unit for Tiptronic Operation using the Auto-Sash Keypad

The Auto-Sash Control Unit needs to have each of its required stationary positionsdefinedforTiptronicfunctionalityasfollows:

1. Press and hold the Enterbuttonforapproximately5secondsoruntilthemainmenu appears.

TheLCDdisplaywillshowthecurrenthardwareandsoftwareversionseg.‘1.HW2.0FW1.1’.

2. Use the Downarrowtoscrolldownandselect‘2.Setup’.

3. Press Enter.

4.EnterthePassword(factorydefaultis1001)usingtheUp arrow and Enter buttons.IntheSet-Upmenu,thecontrollerwilldisplay‘KeypadTones’.

5. Use the Downarrowtoscrollthroughthemenuandselect‘Sash1Settings’.

6. Press Enter.

IntheS1(Sash1)Settingsmenu,thedisplaywillshow‘1.S1Enabled’.

7. Use the Downarrowbuttontoscrollthroughthemenuandselect‘8.S1Calibration’.

8. Press Enter.Thedisplaywillshowonscreeninstructions.Asanexample,forthisstageoftheprocess,thefollowingmessagewillbedisplayed:

“Manually move sash to center and then press the Up/Down keys to find sash down direction. Press Cancel to abort Calibration”

9.Movethesashtothemiddleofthesashopening(eg.250mmfromfumehoodbase).

10. Press the Up and Downarrowbuttonstofindwhicharrowactivatessashclosing.

11.Pressthebuttonwhichclosesthesash,thenpressEnter. This tells the controller which direction the motor needs to turn to close the sash.

12. Move the sash to the lowest position required.

13. Press Enter.

Version 01 / p.55


14. Either: PressQuit(Mutebutton)ifthisistheonlypresetpositionrequired, or:Setthesashtothenormalworkingheight(eg.500mm)

15. Press Enteragainfortwopositionoperation.

16. Either: Press Quit (Mutebutton)ifonlytwopresetpositions(‘lowest’and‘normal’)are required, or: Setthesashtothefullopeningheight(eg.750mm).

17. Press Enteragainforthreepositionoperation. Lowest,normalandfullyopenpositionsarenowcalibrated.

18. Press EntertoquitCalibrationmode.

19. Using the Downarrowbutton,select‘BacktoSetupmenu’.

20. Press Enter.

21. Use the Downarrowbuttonandselect‘ExitandSaveChanges’.

22. Press Enter.

The Controller will now enter Run mode.

Note:EventhoughtheAuto-SashControllerdriveallowsforaccelerationanddeceleration,thesashmayslightlyoverrunthecalibrationpointsiftheAuto-Sashmotordriveissettoaveryfastspeed.Topreventthis,whencalibratingthesashpositions,allowamarginforthesashtoover-runthelowest,normalandfullyopenpositionssetduringcalibration.SeeSection4.2-CalibratingtheAuto-SashControlUnitforTiptronicOperationusingtheAuto-SashKeypadabove.

For example:

Tocalibratethelowerstopheightwiththisallowance,closethesashfullyandthenopen5mm(0.197”)beforecalibrating.

Tocalibratethenormalstopheightwiththisallowance,openthesashtothenormalheightandthenlowerby5mm(0.197”)beforecalibrating.

4.3 Calibrating the Sash Lock Function

TherequiredSashLockpositionisdefinedasfollows:

1. Press and Hold the Enterbuttonforapproximately5secondsoruntiltheMain menu appears.

2.ThedisplaywillshowthecurrentHardwareandSoftwareversionseg.“1.HW2.0FW1.1”

Version 01 / p.56


3. Use the Downarrowtoscrolldown,select“2.Setup”andpressEnter.

4.EnterthePassword(Factorydefaultis1001)usingtheUp arrow and Enter buttons.

5.IntheSetupmenu,thecontrollerwilldisplay“KeypadTones”

6. Use the Downarrowtoscrollthroughthemenuandselect“Sash1Settings”andpress Enter.

7. In the S1 Settingsmenuthedisplaywillshow“1.S1Enabled”

8. Use the Downarrowtoscrollthroughthemenuandselect“11.S1AutoLock”andpress Enter.

9.SettoEnabledandpressEnter.

10. Use the Downarrowtoscrollthroughthemenuandselect“11b.S1LockAlarm”and press Enter.

11. Use the Up and Down arrows to set the required alarm delay time and press Enter.

12. Use the Downarrowtoscrollthroughthemenuandselect“11c.S1LockPosCalibration”.

13. Press Enter.

The display will show on screen instructions. As an example, for this stage of the process, the following message will be displayed:

“Lock the sash then move the sash to the lowest lock position. Enter to accept. Cancel to abort”

14. Open the sash to the Lock position and press Enter.

15.Ifthepositionchosenistoolow(lowerthanthecalibratedBottom,MiddleorToppositions)“Badposition-tryagain”willbedisplayed.

16.Ifthechosenpositionisacceptable,thelockpositionwillbeset.

17. Use the Downbuttonandselect”BacktoSetupmenu”andpressEnter.

18. Use the Downbuttonandselect”ExitandSaveChanges”andpressEnter.

19. The Auto-Sash Controller will now go to RUN mode.

Version 01 / p.57


4.4 Calibrating the Safety Light Curtain

Adjust the range and sensitivity of the Safety Light Curtain as follows:

1.EnsurethattheareabetweentheSafetyLightCurtaintransmitterandreceiverisfreefromobstructions.

2. EnsurethatthelightbeampathsarenotbrokenandthatthePersonnelSensorisdisabledsothatthesashdoesnotAuto-ClosewhilsttheSafetyLightCurtainisbeingcalibrated.

Note:IfitisnotpossibletodisablethePersonnelSensor,removethemotor/clutchconnectorfromtheAuto-SashControlUnit.ThiswillactivatetheSashControlAlarmaftertheselectedtimedelayandtheresetbuttonwillneedtobepressedoncetheSafetyLightCurtainhasbeencalibrated.

3.RemovethecoverfromtheSafetyLightCurtainControlBox.

Version 01 / p.58


4. Power up the Auto-Sash Control Unit.

5.CheckthattheSafetyLightCurtainTransmitterandReceiverareconnected correctly and are operational. TheredPowerOnLEDshouldnowbevisibleonthereceiver. See Figure 55.

6.EnsurethatSwitch1(sw1)(seeFigure54)issettothecorrectrange. See table overleaf:

Version 01 / p.59


6. EnsurethatSwitch2(sw2)(seeFigure54)issettoOff(OperationMode).

7.EnsurethatSwitch3(sw3)issettoOn(NormalOperation) Abuzzercanbesettosoundwhenthebeamisbrokentoaidsettingupthebeam.Toenablethebuzzer,setSwitch4(sw4)toOn. ThesignalLEDalsoindicatesbeamstatus;greenifthedetectionareaisclearandredifanobjectortheoperatorisdetected.

8.Adjustthegainpotentiometerfullycounter-clockwise(tominimum),sothatthetransmitterandreceivercannot‘see’eachotherie.thereceivercannolongerdetectthebeamsentfromthetransmitter.

9.Slowlyadjustthegainpotentiometer(seeFigure54above)clockwise(tomaximum)untilthetransmitterandreceivercan‘see’eachotherie.thereceivercandetectthebeamsentfromthetransmitter.

10.SetSwitch3(sw3)toOfftostorethesettings.

11. Turn the gain potentiometer approximately 5 degrees clockwise to ensure sufficientgain.

12.Useaglassobject(eg.abeaker)tocheckthatsuchobjectscanbreakthebeamacrosstheentireopenfaceofthefumehood. Iftheglassobjectdoesnotbreakthebeamoverthefullarea,slowlyadjustthegainpotentiometercounter-clockwiseuntilinsertingtheglassobjectbreaksthebeam.

13.DisablethebuzzerifrequiredbysettingSwitch4(sw4)toOff. Ifthesashlightbeamsonlyintermittently‘see’glassobjects,ensuresw1issettoOff(shortrange)andrepeatsteps5to14.

Version 01 / p.60


If adjusting the Gain Potentiometer does not allow the transmitter and receiver to ‘see’ each other and always indicates a broken beam, inspite of a clear path between the light beams:

Either:Switchsw2On(Diagnosticmode).Afterapproximately15secondstheRXERRandTXERRLEDs(seeFigure54above)willindicateifthereisafaultybeamie:

•RXERRRedLEDOn–Faultyreceiver.•TXERRRedLEDOn–Faultytransmitter.

Or:Cleanorreplacethefaultycomponentandsetsw2backtoOff(Operationmode).

4.5 Calibrating the Tilt Switch

NousercalibrationoftheTiltSwitchispossiblehowever,ifaTiltSwitchisfitted,ensurethatthetoppanelofthefumehoodisclosedbeforeswitchingontheAuto-Sash Control Unit.

4.6 Calibrating the Sash Position Sensor

NousercalibrationoftheSashPositionSensorispossible,theunitsimplyprovidessash position data to the Auto-Sash Controller relative to its starting position.

4.7 Calibrating the Personnel Sensor

Thesensorisself-calibratingandneedsnoadjustment.Toensureoptimumperformance,ensurethedetectionfieldinfrontofthefumehoodisclearfromobjectsandpersonnelwhenpoweringuptheAuto-SashControlUnit.

Thesensorwillbefullyoperationalapproximately10secondsafterpowerup.TheLEDonthesensor’sfaciawillbegreenifthedetectionareaisclearandredifanobjectortheoperatorisdetected.

To check that the sensor is operational, listen to hear whether the internal relay energisesandde-energises(clicks)whenstandinginfrontofandthenwalkingawayfromthefumehood.

4.8 Calibrating the Sash Low Switch

NousercalibrationoftheSashLowSwitchispossible.

5. SYSTEM MENUS

Version 01 / p.62


5 SYSTEM MENUSTheSystemMenusallowtheOperatortodefineparametersaffectingtheoperationoftheAuto-SashControllerandassociatedsystems.

TheoverallstructureoftheSystemMenusandroutestoaccessindividualmenuitemsareillustratedintheflowchartoverleaf:

Version 01 / p.63


Version 01 / p.64


5.1 Accessing System Menus

To access the System Menus, press and hold the Keypad Enterbuttonforapproximately 5 seconds or until the Main/Setup menu is displayed.

1. Navigate the Main/Setup menu using the Up and Down arrow buttonsonKeypad.

2. Select the required menu

3. Press Enterbutton

4. Navigate the chosen menu using the Up and Downarrowbuttons. Select from the following System Menus: • Keypad Tones. • Sash 1 Settings. • BMS Input Settings. • BMS Output Settings.

5.SelectamenuentrybypressingtheEnterbutton.

6.Selectamenuentryvalue/parameterbyusingtheUp and Downarrowbuttonstodisplay the required value/parameter.

7. Press Enterbutton.

8. Press Cancelbuttontoexitmenuentryandreturntomenu.

9. To return to Main/Setupmenu,scrolldowntothebottomofthecurrentmenuand select <Back to Setup Menu.

10. Press Enterbutton.

11. Scroll down through Main/Setupmenuandselectoneof: •ExitandAbandonChanges • Exit and Save Changes

Version 01 / p.65


5.2 Navigating the System Menus

5.2.1 Keypad TonesEnablesordisablestonesoundingwhenakeyispressedontheKeypad.Select from: 1. Enabled. 2. Disabled.

5.2.2 Sash 1 Settings Menu

1. S1 Enabled PermanentlyenablesordisablestheAuto-SashControllermotordrive.Select from: 1. No. 2. Yes.

2a. S1 Close DelaySetsthetimedelaybeforethesashcloses(0to3600seconds).

2b. S1 Close AlarmSetsthetimedelaybetweentheCloseAlarmactivatingandthesashclosing(0to10seconds).

3. S1 Auto-OpenEnablesordisablesAuto-OpenfeatureorsetstoAuto-CloseOnly.

3a. S1 Open DelaySetsthetimedelaybeforethesashopens(0to10seconds).

3b. S1 Open AlarmSetstimedelaybetweenOpenAlarmactivatingandthesashopening(0to10seconds).

4. S1 Motor SpeedSetsmotordrivespeed(0to100%).

5. S1 Tilt SwitchSets input activation.Select from: 1. Normally Open. 2. Normally Closed. 3. Disabled.

6. S1 Light CurtainSets input activation.Select from: 1. Disabled. 2. N/CContact(NormallyClosed). 3. N/OContact(NormallyOpen).

Version 01 / p.66


7. S1 Personnel (Sensor)Sets input activation.Select from: 1. Disabled 2. N/CContact(NormallyClosed) 3. N/OContact(NormallyOpen)

8. S1 CalibrationCalibratessashpositionsensorandmotordirection.SeeSection4.2.

9. S1 TiptronicEnablesordisablestheTiptronicfeature.Select from: 1. Enabled 2. Disabled

10. S1 MaxTiptimeSetsTiptronictouchsensitivity(0to1500ms–0to1.5seconds)

Note: Thisistheminimumtimethesashmusttraveltobeoperatedmanually.ManualmovementforlessthanthespecifiedtimewillcausethesashtoAuto-Drivetothecalibratedposition.

11. S1 Auto LockEnablesordisablestheAuto-Lockfeature(seeSection4.2).Select from: 1. Enabled 2. Disabled

11b. Lock AlarmSetsthealarmdelaytime-timebeforealarmactivatesifsashremainslocked(1to30minutes).

11c. Lock Pos CalibrationCalibratestheLockposition(seeSection4.3).

5.2.3 BMS Input Settings Menu

1. Fire Alarm Select from: 1. Disabled 2. Input 1 Open 3. Input 1 Closed

2. Open SashSelect from: 1. Disabled 2. Input 1 Open 3. Input 1 Closed

Version 01 / p.67


3. Close SashSelect from: 1. Disabled 2. Input 1 Open 3. Input 1 Closed

4. EV Open SashSelect from: 1. Disabled 2. Input 1 Open 3. Input 1 Closed

5. EV Close SashSelect from: 1.Disabled 2. Input 1 Open 3. Input 1 Closed

6. Foot SW OpenSelect from: 1. Disabled 2. Input 1 Open 3. Input 1 Closed

7. Foot SW ClosedSelect from: 1. Disabled 2. Input 1 Open 3. Input 1 Closed 5.2.4 BMS Output Settings Menu

1. Alarm SounderEnablesordisablesRemoteAlarmSounder.

2. Analogue VoltsSelectsanalogueoutputvoltageforsashpositionindication.Select from: 1.0-10V 2.1-10V 3.0-5V 4.1-5V

3. Analogue CurrentSelectsanalogueoutputcurrentforsashpositionindication.Select from: 1. 0 - 20mA 2. 4 - 20mA

Version 01 / p.68


4. Relays 1 to 4 (RLY 1; RLY 2; RLY3; RLY4)For each relay, select from:1. Always Open2. Always Closed3. Open on Sash Alarm4. Close on Sash Alarm5.OpenonObstructionDetected6.CloseonObstructionDetected7.OpenonUser(Detected)8.CloseonUser(Detected)9. Open on Sash Open10. Close on Sash Open11. Open on Sash Locked12. Close on Sash Locked

6. OPERATIONS

Version 01 / p.70


6.1 Control Philosophy

Whenallcomponentsareinstalled,setupandcalibratedcorrectly,theAuto-SashControllerwillclosethesashafterapresetdelay,providedtheareainfrontofthefumehoodisclear.

The following additional protocols also apply:

•iftheuserreturnstothefumehoodduringthedelayperiod,thecontroltimerwillstopandresetoncetheuserhasleftthefumehoodagain.•iftheuserreturnstothefumehoodoncethesashisclosing,thedrivewillstopassoonasit‘sees’theuser.•ifanobstructionisdetectedunderthesash,theAuto-SashControllerwillnotopenorclosethesashandwillgiveavisualalarmtoindicateafaultcondition.•ifanobstructionisdetectedwhilstthesashisclosing,thesashdrivewillstopandgiveavisualindicationtoindicateafaultcondition.Thefaultalarmcanberesetbypressingtheresetbutton.•oncethesashisclosingatimerisinitiated,ifthesashdoesnotclosewithinthespecifiedtime,thesashdrivewillstopandwillgiveavisualalarmtoindicateafaultcondition.•wheneverauserispresentinfrontofthefumehood,thesashcanbeoperatedbyhand.

6.2 Modes of Operation

The Tiptronic Auto-Sash Controller has the following modes of operation:• User Present.• User Not Detected.•Auto-Open(UserConfigurable).•BuildingManagementSystem(BMS)Inputs.• Sash Lock.

6 OPERATION

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6.2.1 User PresentWhen the user is detected the sash can be moved in the following ways:• Manually

IftheTiptronicfeatureisenabled,thesashcanbeopenedorclosedmanuallyaslongasitiskeptmovingformorethanauserdefinedperiodoftimerangingfrom0to1500ms(0to1.5seconds).

Note:Thisistheminimumtimethesashmusttraveltobeoperatedmanually.MovementforlessthanthespecifiedtimewillleadtothesashAuto-Drivingtotheappropriatecalibratedposition.

• Tiptronic

Ifthesashismovedmanuallyforlessthanitsuserdefinedperiodoftime(0to1.5seconds),thesashwilldrivetoitsuserdefinedposition.

•Up/DownPushbuttons

Ifthesebuttonsarepressed,thesashwilldrivetoitsprogrammedposition.

•OptionalFootswitch(OpenandCloseoptions)

Ifoperatedthesashwilldrivetoitsprogrammedfullyopenorfullyclosedposition

6.2.2 User Not DetectedWhen the user is not detected, the sash will Auto-Close to its lowest programmed position following a pre-set delay time unless:

•TheSafetyLightCurtainbeamisbroken(ie.anobjectisdetectedinthesashopening).• The Auto-Sash Controller detects no sash movement whilst the motor is operating.

6.2.3 Auto-Open(UserConfigurable)When enabled, the sash will automatically open when the Operator returns following a pre-set time delay:•ifthesashwasAuto-Closed,thesashwillautomaticallyopenbacktothesamepositionthesashwasinbeforeitautomaticallyclosed.

•ifthesashwasclosedbyanyothermethod(manually,Tiptronically,pushbutton,BMSetc.),thesashwillopenautomaticallyandreturntoitscalibratedposition.

The sash will not open automatically if:

•anobjectisdetectedinthesashopening.• the controller detects no sash movement whilst the motor is operating.

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6.2.4 Sash LockThesashcanbesettoLock(Auto-Sashdriveinhibited)whenthesashissettoapresetposition(egfullyopen).

Anaudibleandvisualalarmwillactivatefollowingapresetalarmtimedelaytoremindthe user to lower the sash.

Thisfunctionisusedwhenthesashneedstoremainintheopenpositionforaprolongedperiodoftimetoallowloadingorsettingupofequipmentinsidethefumehood. 6.2.5 BuildingManagementSystem(BMS)InputsThe sash can be set to operate from BMS inputs as follows:• Open/CloseThesashwillonlyAuto-Driveopen/closedatthestart/endoftheday,followinganinputtotheAuto-SashControllerfromaBMS,iftheOperatorisnotpresentandthenoobjectisdetectedinthesashopening.•EV(Emergency)Open/CloseEVaudiblealarmtonewillsoundwhilsttheEVinputisactive.ThesashwillonlyAuto-Driveopen/closeiftheOperatorisnotpresentandnoobjectis detected in the sash opening.InEVmode,thesashcanbemanuallymovediftheOperatorisdetected.ThesashwillthenAuto-Driveopen/closedagain,iftheEVinputisstillactive,whentheOperator is no longer detected.• Fire Alarm CloseThefirealarmaudiblealarmtonewillsoundwhilstthefirealarminputisactive.ThesashwillonlyAuto-Driveopen/closediftheuserisnotpresentandnoobjectisdetected in the sash opening.InFireAlarmClosemode,thesashcanbemanuallymovediftheOperatorisdetected.ThesashwillthenAuto-Driveopen/closedagain,iftheEVinputisstillactive,when the Operator is no longer detected.

6.3 Operation and Alarm Indication

6.3.1 RUN ModeIn RUN mode, the display will show the current status:

“User present” Theuserisdetected,thesashdriveisinhibited,Tiptronicandmanualdriveareenabled.

“XX Seconds to close”Theuserisnotdetected;thesashwillclosefollowingthecountdowndelaytime.

“Sash Closing”Displayedwhenthesashisdrivingclosed(Tiptronic,Auto-Closeorpushbutton).

Version 01 / p.73


“Sash Closed”Whentheuserisnotpresentandthesashhasclosed.(keypadbacklightdimmed).

“XX Seconds to open”Whentheuserisdetected;thesashwillopenfollowingthecountdowndelaytime.(Auto-Openenabled)

“Sash Opening”Displayedwhenthesashisdrivingopen(Auto-Open,Tiptronicorpushbutton).

“Operator Manual Move”Displayedifthesashismanuallyopenedorclosed.

“Sash Inhibited”DisplayediftheTiltswitchinputisopen,driveisinhibiteduntiltheTiltswitchisclosed.

“Sash Disabled”Displayedifthesashdrivehasbeendisabledinthemenusettings.

“Sash Locked”DisplayedifthesashisatorabovethecalibratedLockposition.

IftheAuto-Openfeatureisenabledinthemenuandisswitchedonfromthekeypad,an“*”(asterix)willbedisplayedinthelefthandcornerofthescreen,eg.“*Userpresent”.

ToenableAuto-OpenpressandholdtheMutebuttonfor5secondsoruntilthe“*”symbolisdisplayed.

TodisableAuto-OpenpressandholdtheMutebuttonfor5secondsoruntilthe“*”symboldisappears.

Auto-Opencanbesetto‘Disabled’,‘Enabled’,‘EnabledifAuto-Closed’.

Note:Ifsetto‘EnabledifAuto-Closed’,thesashwillonlyAuto-OpenifthesashhasAuto-Closed.

ClosingthesashmanuallyorbyusingthepushbuttonswillinhibittheAuto-Openwhentheuserreturnstothefumehood.

6.3.2 Alarm ConditionsInanAlarmConditionoriginatingfromwithinthefumehood,thedisplaywillshowthecurrent alarm status:

“Obstruction Detected”Displayedifthesashbeamisbrokenwhenthesashstartstoclose–removeobstructionandpresstheMutebuttontoresetthealarm.

Version 01 / p.74


1. “Sash Fault”Displayedifthesashdoesnotcloseoropenwhenexpected-pressMutetoresetalarm.Checksashdriveforfaults.

2. “Remove Sash Lock/Cancel to Reset”Displayedifthesashisatorabovethecalibratedlockpositionforlongerthanthepreset alarm time - press Mute or lower the sash to reset the alarm.

Following an input from the BMS, the display will show one of the following messages:

1. “Fire Alarm”Displayedalongwiththenormaltext(eg.“FireAlarm,UserPresent”)whenthefirealarm input is activated.

Inthissituation,thesashwilldriveclosediftheuserisnotdetectedandthesashisclear.

Thesashcanbeoperatedmanuallyiftheuserisdetected(Auto-Open,Tiptronicandpushbuttonsaredisabled).

2. “BMS open”DisplayedalongwiththenormaltextiftheuserisnotdetectedwhentheBMSOpeninput is activated.

Inthissituation,thesashwilldriveopeniftheuserisnotpresentandthesashisclear.Thesashcanbeoperatednormallyiftheuserisdetected(Auto-Open,Tiptronicandpushbuttonsareactive).

3. “BMS close”WhentheBMScloseinputisactivated,thesashwilldriveclosediftheuserisnotpresent and the sash is clear.

Thesashcanbeoperatednormallyiftheuserisdetected(Auto-Open,Tiptronicandkeypadpushbuttonsareactive).

4. “Emergency (up)”DisplayedalongwiththenormaltextiftheuserisnotdetectedwhentheEVOpeninput is activated.

Inthissituation,thesashwilldriveopeniftheuserisnotpresentandthesashisclear.Thesashcanbeoperatedmanuallyiftheuserisdetected(Auto-Open,Tiptronicandpushbuttonsaredisabled).

5. “Emergency (dn)”DisplayedalongwiththenormaltextiftheuserisnotdetectedwhentheEVCloseinput is activated.

Version 01 / p.75


Inthissituation,thesashwilldriveclosediftheuserisnotpresentandthesashisclear.

Thesashcanbeoperatedmanuallyiftheuserisdetected(Auto-Open,Tiptronicandpushbuttonsaredisabled).

6. “Sash Opening”DisplayediftheSashOpenFootswitchhasbeenoperatedwhilsttheOperatorispresent.

7. “Sash Closing”DisplayediftheSashCloseFootswitchhasbeenoperatedwhilsttheOperatorispresent.

7. TROUBLESHOOTING

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7.1 Faults and Alarms

Sash does not Auto-Drive

a)Checkthatthereismainspowertothecontrolunitandalloftheconnectionsarecorrect.

b)CheckthattheSash1SettingsMenuentryS1EnabledissettoEnabled(“SashDisabled”willbedisplayedinrunmodeifsettoDisabled).

c)ChecktheTiltSwitchisconnectedorlinkedoutatthecontrolboxterminals.

Motor drives but clutch does not engageCheck that the clutch is connected.

Fault LED is illuminatedCheckthattheareabetweenthesashsensortransmitterandreceiverisclearandthat the sensors are aligned – power up again to reset.

Sash drive does not stop when sash is closedCheck that the Sash Low switch is connected and operational.

Sash drive is slow or fastAdjusttheSash1SettingsMenuentryS1MotorSpeed(0–100%).

7 TROUBLESHOOTING

8. LIMITATION OF WARRANTYAND LIABILITY

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Sellerwarrantsthatthisproduct,undernormaluseandserviceasdescribedintheoperator’smanualshallbefreefromdefectsinworkmanshipandmaterialforaperiodoftwelve(12)months,orthelengthoftimespecifiedintheoperator’smanual,fromthedateofshipmenttothecustomer.

This limited warranty is subject to the following exclusion:

1.Batteriesandcertainothercomponentswhenindicatedinspecificationsarewarrantedforaperiodof90daysfromthedateofshipmenttothecustomer.

2. With respect to any repair services rendered, Seller warrants that the parts repairedorreplacedwillbefreefromdefectsinworkmanshipandmaterial,undernormaluse,foraperiodof90daysfromthedateofshipmenttothecustomer

3.Sellerdoesnotprovideanywarrantyonfinishedgoodsmanufacturedbyothers.Onlytheoriginalmanufacturer’swarrantyapplies.

4.UnlessspecificallyauthorisedinaseparatewritingbySeller,Sellermakesnowarrantywithrespectto,andshallhavenoliabilityinconnectionwith,anygoodswhichareincorporatedintootherproductsorequipmentbytheBuyer.AllgoodsreturnedunderwarrantyshallbeattheBuyer’sriskofloss,Seller’sfactoryprepaid,andwillbereturnedatSeller’sriskofloss,Buyer’sfactoryprepaid.

TheforegoingisINLIEUOFallotherwarrantiesandissubjecttotheconditionsandLIMITATIONSstatedherein.NOOTHEREXPRESSORIMPLIEDWARRANTYOFFITNESSFOR PARTICULAR PURPOSE OR MERCHANTABILITY IS MADE.

THEEXCLUSIVEREMEDYOFTHEUSERORPURCHASER,ANDTHELIMITOFLIABILITYOF SELLER FOR ANY AND ALL LOSSES, INJURIES, OR DAMAGES IN CONNECTION WITH THIS PRODUCT (INCLUDING CLAIMS BASED ON CONTRACT NEGLIGENCE, STRICT LIABILITY,OTHERTORT,OROTHERWISE)SHALLBETHERETURNOFTHEPRODUCTTO THE FACTORY OR DESIGNATED LOCATION AND THE REFUND OF THE PURCHASE PRICE, OR, AT THE OPTION OF THE SELLER, THE REPAIR OR REPLACEMENT OFTHEPRODUCT.INNOEVENTSHALLSELLERBELIABLEFORANYSPECIAL,INCIDENTAL OR CONSEQUENTIAL DAMAGES.SELLER SHALL NOT BE RESPONSIBLE FOR INSTALLATION, DISMANTLING, REASSEMBLY OR REINSTALLATION COSTS OR CHARGES. NO ACTION, REGARDLESS OF FORM, MAY BE BROUGHT AGAINST THE SELLER MORE THAN ONE YEAR AFTER THE CAUSE OF ACTION HAS ACCRUED.

ThepurchaserandallusersaredeemedtohaveacceptedthetermsofthisLIMITATION OF WARRANTY AND LIABILITY, which contains the complete and exclusive limitedwarrantyofSeller.ThisLIMITATIONOFWARRANTYANDLIABILITYmaynotbeamendedormodifiednormayanyofitstermsbewaivedexceptbyawritingsignedbyanauthorisedrepresentativeoftheSeller.

8 LIMITATION OF WARRANTY AND LIABILITY

9. AUTO-SASH CONTROLLER SERIES SPECIFICATION

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9 AUTO-SASH CONTROLLER SERIES SPECIFICATION

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