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XT SERIES DryLine® DEHYDRATOR

USER MANUAL

BulletinAE01B-A0493-001 Rev:C ©2008CommScope,Inc.Allrightsreserved Date(10/08)

XT Series DryLine® Dehydrator User Manual

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Contents

Section 1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.1 IntroducingNewDryLine®Dehydrators. . ... ... ... ... ... ... ... ... ... ... .41.2 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41.3 IntroducingtheDryLine®RedundantHotStandbyDehydrators . . . . . . . . . . . . . . . .4

Section 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.1 UnpackDehydratorandInspectforShippingDamage . ... ... ... ... ... ... ... .52.2 PerformPre-SystemStartupTest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Figure1CheckFilterBowls. ... ... ... ... ... ... ... ... ... ... ... ... ... .52.3 PlacetheDehydrator.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... .62.4 InstallPolyethyleneTubingLines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62.5 ConnectionProcedure. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. .6 Fig ure 2 XT Series System configuration diagram Basic . . .. . .. . .. . .. . .. . .. . .72.6 ConnectAlarmWiring. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .8 Figure3AlarmsJumpers.. ... ... ... ... ... ... ... ... ... ... ... ... ... .8 Figure4Upperterminalstrip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Figure 5 XT Series System configuration diagram Multi-Line. . . . . . . . . . . . . . . . . . .9 Figure 6 Redundant System Configuration .. ... ... ... ... ... ... ... ... ...102.7 ConnecttoDryAirCableSystemCaution:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112.7.1 PurgingProcedure. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 112.8 ConnecttoPowerSupply .. ... ... ... ... ... ... ... ... ... ... ... ... ...112.8.1 GroundingInstructions . ... ... ... ... ... ... ... ... ... ... ... ... ... ... 112.8.2 Plug and Outlet Configurations. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . 122.9 TesttheUnit.. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...12 SystemVolumes,TimestoPurgeandPressurize. . .. . .. . .. . .. . .. . .. . .. . ..13

Section 3 Controls and Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.1 DehydratorControls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.2 Microprocessor Control Keys.......................................143.3 DigitalDisplayWindow . ... ... ... ... ... ... ... ... ... ... ... ... ... ... 14

Section 4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154.1 ControlStatusandProgramming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154.2 FamiliarizeyourselfwiththeDisplays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154.2.1 The Main Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154.2.2 The Program Mode Submenu .. ... ... ... ... ... ... ... ... ... ... ... ...154.3 Pressure Monitoring and Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .174.3.1 Pressure Monitoring Points . ... ... ... ... ... ... ... ... ... ... ... ... ... 174.3.3 DisplayofSystemPressure. ... ... ... ... ... ... ... ... ... ... ... ... ... 174.3.4 AlarmConditions . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . 174.4 ProgrammingProcedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174.5 ShutdownProcedure .. ... ... ... ... ... ... ... ... ... ... ... ... ... ...17

Section 5 Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185.1 Dehydrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .185.2 DehydratorControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Figure7PipingSchematic. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . ..19 Figure 8 Schematic -9XXXX Master . ... ... ... ... ... ... ... ... ... ... ... 20 Figure9Schematic-0XXXXSlave. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . 21


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Section 6 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226.1 Semi-Annual Preventive Maintenance Inspection . . .. . .. . .. . .. . .. . .. . .. . ..226.1.1 CheckWaterFilterandCoalescentFilterandElements . . . . . . . . . . . . . . . . . . . . .226.1.2 CheckElectricalConnections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226.1.3 CheckGroundWire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .226.1.4 Check Run Time Meter . ... ... ... ... ... ... ... ... ... ... ... ... ... ... 226.1.5 ReplaceCompressorAirFilter.. ... ... ... ... ... ... ... ... ... ... ... ...22

Section 7 In Case of Difficulty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 TroubleshootingProcedure . ... ... ... ... ... ... ... ... ... ... ... ... ... 23

Section 8 Parts Replacement and Dehydrator Overhaul . . . . . . . . . . . . . . . . . . . . 25 Three-YearRecommendedDehydratorSpareParts. . . . . . . . . . . . . . . . . . . . . . . . 258.1 PartsReplacementProcedures. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . ..268.2 UnitShutdownandRemoval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .268.3 DoorandPanelRemoval .. ... ... ... ... ... ... ... ... ... ... ... ... ...268.4 ReplacePowerSwitch. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . ..268.5 ReplaceCircuitBreaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .268.6 ReplaceCompressorControlPCB.. ... ... ... ... ... ... ... ... ... ... ...268.7 ReplaceCompressor.. ... ... ... ... ... ... ... ... ... ... ... ... ... ...268.7.1 DisconnectWiring. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . ..268.7.2 DisconnectTubing . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 268.7.3 CompressorRemountandReassembly. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . 278.8 ReplaceHeatExchanger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278.9 Replace Water Filter Element - 3000 hour Maintenance. . . . . . . . . . . . . . . . . . . . .278.10 ReplaceCoalescingFilterElement . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . 278.11 ReplaceCoolingFan .. ... ... ... ... ... ... ... ... ... ... ... ... ... ...278.12 Replace Microprocessor Board . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . ..28

Section 9 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Specifications for Dehydrators XT SERIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Section 10 Customer Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3010.1 24HourTechnicalServiceHotline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3010.2 FreeLoanerProgram . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . 30 Warranty . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . ..31


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Section 1General Information1.1 Introducing New DryLine® Dehydrators.

TheAndrewXT2000DryLine®Dehydratorsareanewgenerationofpressurizationequipmentforantennaandtransmissionlinesystems.Theyfeatureanewpatentedmembraneseparationdryingtechnologyfortheindustry’sbestperformanceandreliabilityplusmanyexclusivenewfeaturessuchasmicroprocessorcontrolanquietoperation.

EachlargeDryLine®Dehydratorisapressurizationsystembuiltintoaconvenientchassis, floor-mounted package. It is a self-containedunitcontainingmanycomponentswhich,inothersystems,aretypicallypiecedtogetheronsite.

This Manual contains the information you need toinstall,operateandmaintainyourXTSeriesDryLine®Dehydrator.

1.2 Description

DryLine®Dehydratorsprovideasourceofdryair-45°C(50°F)dewpointordrier,forpressurizinglargeantennaandtransmissionlinesystems.Outputpressureisprogrammableandcanbesettooperatebetween0.3and15psig.

Airpressureisgeneratedbyanaircompressorandtheairisdriedbypermeableseparationofthewatervaporthroughamembranecartridge,eliminatingtheuseoftimer-controlledheaters,solenoidvalves,desiccanttowersandassociatedwiring,providinggreaterreliability.

Theinternalmicroprocessorcontrolcircuitryprovideseveralmajoroptionsincludingprogrammablealarmsandoperatingthresholds.

1.3 Introducing the DryLine® Redundant Hot Standby Dehydrators

TheAndrewXTSeriesDryLine®DehydratorprovidesabetterleveloftransmissionlinesystemprotectionthroughtheRedundantHotStandbyversion.

In this configuration, up to 2 XT Series DryLine®Dehydratorsareconnectedtogether,providingdryairdistributiontooneormoretransmissionlinesandcommoncontrolovertheoperationofbothdehydrators.Thesystemalsoprovidesadditionalcapacityforverylarge,tightsystemswhere the flow of a single dehydrator is not sufficient for purging and initial pressurization, butisadequateformaintainingpressure,onceestablished.


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Section 2Installation2.1 Unpack Dehydrator and Inspect for Shipping

Damage

Carefullyremovepackingmaterial.

Checkthedehydratorandlinemonitorforshippingdamagesuchasdentsorlooseparts.

Openthedehydratorfrontdoorandcheckforloosewires,hoses,orcomponents.

Ifanythingisloose,refertothepipingschematicFigure7orthewiringschematicFigure8andFigure9forproperplacement.

Ifthereisdamageorifthereareanyotherproblems,contactAndrewTechnicalService.TelephonenumbersarelistedinSection10.

Ifeverythinglookscorrect,closethedehydratorfrontdoor.

2.2 Perform Pre-System Startup Test

Make sure power switch is in the OFF position.Plugthedehydratorintoaproperelectrical outlet. Proper outlets are defined in the specifications, Section9.Donotconnecttheairlinesontheunitatthistime.Within30 seconds the on the Line Monitor panel willshowapressurereadingof0.0andthecompressorshouldstart.Astheunitwarmsup, check the filter bowls (See Figures 1) to ensurecondensateisbeingreleasedandnotbuildingupineachbowl.Checkthepressuregaugeatthetoporbottomofthemembranetube.Verifyitisat621kPa(90psig±5psig).Adjustthevalveifnecessarytoshow621±34kPa(90psig).Checktheairoutputportatthetop of the unit to make sure that air is flowing out.Ifproblemsexist,reviewtroubleshootingproceduresinSection7orconsultAndrewTechnicalService.Iftheseitemscheckout,turnpowerswitchoff,unplugtheunitandclosethedehydratorfrontdoor.

For the Redundant Hot Standby configuration, thereisacontrollinefromthemasterunitwhichconnectstotheinputlineontheslaveunit.

Figure 1 Check Filter Bowls


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2.3 Place the Dehydrator

TheXTSeriesDryLine®Dehydratorisdesignedfor to be floor standing. The unit is shipped with thepowercordandairlinesplacedthroughthetopoftheunit.

2.4 Install Polyethylene Tubing Lines

Outputlines(4)withindividualvalves.

Pressuresenseline

FortheRedundantversion,theslaveunitsenseline.

2.5 Connection Procedure

ConnecttheTransmissionLineTubing.Insertthetubingrunsfromthetransmissionlinesintothe fittings in the top panel marked “Outlet”.

•

•

•

ConnecttheRemoteSenseLineTubing.Insertasingletubingrunfromthetransmissionlineinto the fitting in the top panel marked “Remote Sense”.

Installtheisolationshutoffvalves.Thevalveswhenusedonoutputlines,allowthesystemtoretainpressurewhilethesystemisremovedforservicing.Placeeachvalveinlinebetweeneachoutputandtransmissionline.

For Redundant Hot Standby, use the Tee fitting (optional)toconnecttheoutputlinestogether(fromthemasterandslaveunits).

Theremotesenseline,ideally,shouldbeconnectedtoaseparategasinletportonthetransmissionline.Ifasecondportisnot

available, install a tee fitting in to the gas inlet onthetransmissionline.Connecttheremotesenselinetotheshortsideoftheteeandthedehydratoroutlettothelongsideofthetee.

CAUTION:Do not operate the unit with the pressure sense line disconnected, this may result in an over pressure condition. Also be sure that any isolation valves are open before operating the unit.


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This configuration shows proper hook up for systems whenonlyasinglewaveguideisrequiredinthesystem.

CAUTION!Do not operate the Dehydrator with the system isolation valves closed or with the remote sensing line disconnected. Serious damage to the wave guide due to overpressure can occur.

* Note! To provide extra overpressure protection a secondary popoff valve may be added at this point that is closely matched to the maximum system safe pressure. See specification page for options available

XTDehydrator

RemotePressureSenseLine

IsolationShut-offValves

DehydratorOutputLine

PrimaryLargeWaveGuide

*

Fig ure 2 XT Series System configuration diagram Basic


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2.6 Connect Alarm Wiring

Openthefrontdoorandconnectthealarmwiring to terminals shown in figure 3. See below

Upper terminal strip shown in figure 4. See below

Figure 3Alarms Jumpers

Figure 4Upper terminal strip

IfNormallyClosedcontactsaredesired,movethejumperonthePCboardstotheN.C.position.JumperonpositionsA-Bfornormallyopen,positionB-Cfornormallyclosed.Allalarmsaredrycontactsandcanbeganged together if a single alarm is desired. See figure 3.

Function Terminal Symbol Jumper

HighPressure

HighPressure

HighHumidity

HighHumidity

ExcessRun

ExcessRun

LowPressure

LowPressure

PowerFail

PowerFail

Common

Common

Common

Common

Common

NormallyOpen

NormallyOpen

NormallyOpen

NormallyOpen

NormallyOpen

-

-

-

-

-

+

+

+

+

+JP7

JP2

JP4

JP6

JP5


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This configuration shows proper hook up for systems, when more than a single wave waveguide is required in the system. Forlargersystemsan8-outputmanifoldcanbeadded.ThisdiagramcanalsobeusedforhookingDP-4A-001or6600Dor L6600D or LM400 Series Manifold to the system.


* Note!To provide extra overpressure protection a secondary popoff valve may be added at this point that is closely matched to the maximum system safe pressure. See specification page for options available

XTDehydrator

RemotePressureSenseLine




*

Anyother MonitororManifoldcanbeused

inthislocationtoexpandthesystem.

OutputstootherWaveGuides

TeeFitting

DP-4A-001or6600Dor

L6600DorLM400Series

Manifold

Figure 5 XT Series System configuration diagram Multi-Line


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Figure 6 Redundant System Configuration


* Note!To provide extra overpressure protection a secondary popoff valve may be added at this point that is closely matched to the maximum system safe pressure. See specification page for options available

XTDehydrator

Master

Dehydratoroutputsconnectedwith teefitting




*

XTDehydrator

Slave

5VDCcontrolcable


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2.7 Connect to Dry Air Cable System Caution:

Checkthesystempressureratingbeforeconnectingthedehydratortothetransmissionlinesystem.Iftheratingisbelow35kPa(5.0psig),theoutputpressureofthedehydratorshouldbeadjusted.SeeSection4.Toinsurethatallinternaldehydratorcomponentsareproperlydried;operatetheXTSeriesDryLine®Dehydratorunitforatleast45minutespriortoconnectingtheoutputairlinetotheprimarywaveguide.

Ifthetransmissionlineshavenotbeenpurged,takethefollowingstepstodrythesystem;otherwise,proceedtoSection3,ControlsandDisplays.

2.7.1 Purging Procedure

Determinetotalvolumeofthepressurizeddryaircablesystemtobeconnectedtothedehydrator. Refer to “Table 2 - Times to Purge and Times to Pressurize.” Remember iftheRedundantHotStandbyoptionisused,thesetimescanbecutinhalf(approximately).

Opentheoppositeendofthecablesystemfromthedehydratorforpurging.

Operatethedehydrator(aftertheinitial45minutedryingperiod)todeliverdryairintothepressurizedairsystemuntilatotalof3volumeshavebeenpumpedthroughtheentiresystem.

Checkthehumidityinthesystemusingthehumidityalarm.Performthischeckafterthefarendofthesystemhasbeenclosedandthesystemhasbeenstabilizedforatleast5hours.

Checkcycletiming.Compressorontimeshouldbenomorethan10%ofofftimeformaximumlife.Ifnot:

Systemmaynotbeproperlysized.

Or

Leaksmayexist.CheckusingSnoopordetergentwater.

Or

Normalconnectorleakagemaybegreaterthanexpected.

1.

2.

3.

4.

5.

Duringtheoffcycle,thedehydratorisdesignedtoallowasmallamountofsystemairtobleedbackthroughthemembranedryer.Thisairmaintainsthedrynessofthemembranedryer.Assystemairbleedsbackthroughthedryer,additionalsystemmoistureiscontinuallyremoved,loweringthesystemdewpointevenfurther.

Yoursystemisnowupandrunningatthefactory

programmedsettings.Tobecomefamiliarwiththemicroprocessorcontrolsandtochangethesettings,proceedtoSection3,ControlsandDisplays.

Connectthealarmwiringtotheterminalsontheinsideoftheunit.Refertothelabelonthealarmboardortheschematicfortheproperconnections.

2.8 Connect to Power Supply

TheXTSeriescanbepluggedintoastandard20Apowerreceptacleoftheratedvoltage.

Electricalconnectionsrequiringseparatecircuitswhenmultipledehydratorsareinstalled.

Connectthedehydratortoaproperlygroundedpower outlet. Power is specified inSection9,Physical Specifications.

2.8.1 Grounding Instructions

Thisproductshouldbegrounded.Intheeventofanelectricalshortcircuit,groundingreducestheriskofelectricshockbyprovidinganescapepathfortheelectriccurrent.Thisproductisequippedwithacordhavingagroundingwireandagroundingplug.Itshouldbepluggedintoaproperlyinstalledoutletthatisgroundedinaccordancewithalllocalcodesandordinances.

Danger:Improper installation of the grounding plug can result in a risk of electric shock. If repair or replacement of the cord or plug is necessary, do not connect the green grounding wire to either flat blade terminal. Check with a qualified electrician or serviceman if you have any questions regarding grounding or if in doubt as to whether the product is properly grounded.


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ConnectiontoaHaloGroundingSystem:A#10groundingstudislocatedattheinsidepowerentryareaofthedehydratorchassisfordirectconnectionstoahalogroundingsystem,whereapplicable.ConnectusingaNo.6copperstrandedwire,terminatedatthegroundstudwithaproperringtonguecrimp-onterminal.

2.8.2 Plug and Outlet Configurations

Make sure that the units are connected to an outlet having the same configuration as the plug. Do not modify the plug. If it will not fit theoutlet,haveaproperoutletinstalledbyaqualified electrician. Do not use an adapter. If theproductmustbereconnectedforuseonadifferent type of electric circuit, qualified service personnelshouldmakethere-connection.

2.9 Test the Unit

Turnonthedehydrator.Thedisplayshouldindicate0.0pressurewithinthirtyseconds.Thehumidityalarm,low-pressurealarm,pressurereadingand,eventually,theexcessruntimealarm (if so equipped) should flash in sequence inthedisplaywindow.Thealarmconditionsexistbecausetheunitisnotconnectedtothesystem.


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System Volumes, Times to Purge and Pressurize

LineType VolumesTimetoPurge1000ft

(305m)inHoursper3Volumes

TimetoPressurizetoOperatingPressureInHours

Per1000ft(305m2.)

ft3per1000ft

litersper1000m XT2000 XT2000

HELIAX®CoaxialCable,Pressurizedto(35kPa(5psig)

HELIAX®EllipticalWaveguide,Pressurizedto(35kPa(5psig)

CircularWaveguide,Pressurizedto(35kPa(5psig)

RigidTransmissionLine,Pressurizedto(35kPa(5psig)

GuidelineWaveguideforUHF-TV,Pressurizedto14kPa(2psig)

3” 36.7 3410 0.82 .092 4” 69.9 6494 1.56 .176 5” 117.0 10870 2.60 .294

EW34 25.0 2323 0.556 0.062EW28 36.0 3345 0.8 0.090EW20 60.5 5621 1.344 0.152EW17 71.0 6596 1.578 0.178

WG269 39.5 3670 0.878 0.100 WC281 43.1 3746 0.958 0.108

3-1/8” 48.7 4524 1.082 0.122 4-1/16” 84.0 7804 1.866 0.212 6-1/8” 194.0 18023 4.312 0.488 8-3/16” 347.0 32236 7.712 0.874

GLW1350 994 92343 22.08 1.000GLW1500 1227 113988 27.26 1.240GLW1700 1576 146410 35.02 1.600GLW1750 1670 155143 37.12 1.68


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Section 3Controls and Displays Thissectionexplainsthefunctionsofthe

controlsanddisplaysusedforoperationandprogrammingofthecontroller.

3.1 Dehydrator Controls

ON-OFF Doublepolepowerswitchcontrolsbothsidesof

theline.Built-inlightindicatespowerisON.

Circuit Breaker WhitetabindicatesoverloadconditionRe-

settable.

Fuse OnthecontrollerPCB.

3.2 Microprocessor Control Keys

Advancesdisplay(scrollsahead)tothenextdisplayorprogrammodewithoutchangingthevaluesinthemicroprocessormemory.

Entersintothemicroprocessormemorythevaluesdisplayedinthewindowandadvancesdisplay(scrollsahead)tothenextprogramordisplaymode.

Numericallyincreasedisplayedsettingsindisplaywindow.Whendepressedlongerthan1/2secondscrollingwilloccuratafasterrate.

Numericallydecreasedisplayedsettingsindisplaywindow.Whendepressedlongerthan1/2secondscrollingwilloccuratafasterrate.

Usedtoallowtheuserquickaccesstothesystemeventlog.Afterdepressingthisbutton,themostrecenteventwillbedisplayed.Theupanddownarrowbuttonsmaybeusedtobrowsethelog.

VIEWLOG

SELECT

ENTER

3.3 Digital Display Window

Thewindowdisplaysthreetypesofinformation:

SystemStatusInformation.Displayssystempressureandtotalruntime.

Alarm Condition Display. A flashing display indicatesthatanalarmconditionexists.ThedisplayisfactorysetforEnglishlanguageandEnglishunits.Itcanalsobesetformetricunits.


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4.2.2 The Program Mode Submenu

Ifyourmonitorisequippedwithalloptions,allof the screens shown in the flow chart will apply. Themodespertainingtohigh-pressure,highhumidity (fixed at 7.5% R.H.) and excess run time,aswellasmulti-channelmanifoldcapabilityareoptions.

Pressthekeyandproceedfromsystem pressure to [PROGRAM MODE].

PressthekeyandproceedtotheProgram Mode Submenu. [COMPON 0.5] willnowappearonthedisplay.Atthispoint,thedisplaywillbeasfollows,promptingtheuser for a new password: “default password is “111111”.

1.

2.

4.1 Control Status and Programming

XTSeriesDryLine®Dehydratorhaveamicroprocessorbasedcontrolboardformonitoringandcontrolofthecontrollerandsettingtheprogrammablealarms.ItcomesfactorysetforEnglishlanguageandEnglishunits.Figure9showsthevariousmodes,whichmaybe viewed, in the display window. Main Menu displays are shown in the first column. Program Mode Submenu displays are shown in thesecondcolumn.

4.2 Familiarize yourself with the Displays

4.2.1 The Main Menu

First, become familiar with the Main Menu. Turnthecontroller.Uponpowerupthesystemwilldoasetofinternaldiagnosticsandmeanwhile display as follows: “X controller revision XX.X.” If a power-up test failure is detected the following is displayed: “system pressure XXX.X psig(kPa).

Pressthebuttonandthedisplaywillindicate “PROGRAM MODE”.

PressthebuttonagainandtheTotalRun Time will appear as “XXXX.X HOURS” andindicatetotalhourssinceinitialturn-ON.NotefortheRedundantHotStandbyversion,thebuttoncanbepressedagainandtotalruntimewillappearas;”XXXX.X hours B” and indicate total DehydrationBhourssinceinitialturnON.

Pressandyouwillreturntosystempressure,or,iftheexcessrunalarmhasbeen purchased, “CLEAR RUN TIME” will appear.Thisfeatureisusedtoclearthealarmbypressingthekeyandproceedingback to [COMP5.0 psig].

1.

2.

3.

Section 4Operation

SELECT

SELECT

SELECT

SELECT

ENTER

Thefollowingsectionsdescribethevariousprogrammablefunctionsandtheassociatedsub-functionsindetail.

CompressorCount:this valve is set to “1” for a single compressor up to “4” when used with multiplecompressorsintheRedundantHotStandby mode. Values =“1-4”.

HighPressureTankSet:this valve to “NO” unless the high pressure tankoptionwaspurchased.Values = “Y or N”.

SETDATE(month)2digitsformonthoftheyear.values = “01 - 12”

SETDATE(day)2digitsfordayofthemonth.values = “01 - 31”7.

3.

4.

5.

6.

SELECT

SELECT


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SETDATE(DOW)2digitsfordayofweek.values = “00 - 99”

SETDATE(year)2digitsforyear.values = “00 - 99”

SET TIME (hour)2digitsforhouroftheday.values = “00 - 23”

SET TIME (minutes)2digitsforminutesofthehour.values = “00 - 59”

COMP RUN TIME ALARMSetthistoatimeabovethenormalruntimeonthesystem.values = “5 - 240”

COMPRESSOR ONSetthisthedesiredstartpressureinpsig(orkPa) format is XXX.X psig. Values = “0.3 -15.0” for standard unit or “0.3 - 100.0” for the highpressureoption.

COMPRESSOR OFFSetthisthedesiredstartpressureinpsig(orkPa) format is XXX.X psig. Values = “0.3 -15.0” for standard unit or “0.3 - 100.0” for the highpressureoption.

LOW PRESSURE ALARMSetthisthedesiredlowpressurealarmthreshold.FormatisXX.Xpsig(kPa).Values =“0.1 - 15.0”.

HIGH PRESSURE ALARMSetthistothedesiredhighpressurealarmthreshold.FormatisXX.Xpsig(kPa).Values =0.1 - 16.0 ”

7.

8.

9.

10.

11.

12.

13.

14.

15.

BACKUP COMP ON PRESSUsedonlywithmultiplecompressorsystemssettooperateinredundanthotstandbymode.Thisissettothedesiredstartpressureforthebackupcompressor(s).Format is XXX.X psig (kPa). Values = “0.3 - 15.0”.

COMP OVERHAUL TIMEFactoryonlysetting3000hours.

18. KEYPAD INACTIVITYFormatisXXseconds.Factorysetfor45seconds.

SYSTEM PRESSURE HI RESIf set to “YES”, this setting will display systempressuretwodecimalplacesofresolution. Set to “NO” except when system pressuresareverylowortheONandOFFpressuredifferentialisverysmall.

ENTERNEWPASSWORDThe factory set password is “111111”. User manyenteranewpasswordanddepress“ENTER” or depress the “SELECT” button to cancelthechange.

16.

17.

18.

19.

20.

NOTE Must be set below primary compressor ON

set point.

NOTE Must be set below compressor ON set point.

Recommended setting is at least 0.3 psig below compressor ON values.

NOTE Must be set above compressor OFF set

point. Recommended at least 0.3 psig above OFF value.


17

4.3 Pressure Monitoring and Control

4.3.1 Pressure Monitoring Points

Dehydratoroutputpressureismonitoredatthetransmission line on all models by the “Remote Sense” port on the top of the unit.

CAUTION: Do not operate the unit without the sense line connected, this may cause an over pressure condition that may damage the waveguide.

4.3.2 Dehydrator Duty Cycles

Thedehydratorisprogrammedatthefactorytostartwhentheoutputpressureofthedehydratordropsto3kPa(0.5psig)andstopwhenthepressurereaches35kPa(5.0psig).Thatistherecommendedpressurerangeformostantennaandtransmissionlinecomponents,whichhavearatingofatleast3kPa(0.5psig).

Somesystemcomponents,however,havelowerpressureratings.Usingtheproceduresdescribedbelow,XTSeriesDryLine®Dehydratorscanbeprogrammedforanystart/stoppressurecombinationinthe2-103kPa(0.3-15.0psig)range.

FortheRedundantHotStandbyversion,themasterunitisprogrammedtooperateat7kPa(1.0psig)andtheslaveunitisprogrammedtostartat3.5kPa(0.5psig).Bothunitsaresettostopat35kPa(5.0psig).

4.3.3 Display of System Pressure

The dehydrator output pressure “System Pressure 0.0” is the initial display as power is appliedtotheunit.

As shown in Figure 9, Main Menu, pressing the

Key will display “PROGRAM MODE” onthedisplaywindow.

4.3.4 Alarm Conditions

Alarmconditions,excepthighhumidity,aredefined by the programmed settings entered into themicroprocessorasdescribedbelow.Alarmcontactsareincludedintheunitandwiringterminalsarelocatedontheinsideofthedoor.

Whenanalarmconditionexists,thenormallyopencontactsareclosed,therebyactivatingaremotealarm(notincluded).Also,thealarmcondition will flash continually on the display windowuntilthealarmconditioniscorrected.Inthecaseoftheexcessrunalarm,thealarmmustbeclearedasdescribedintheprogrammingsection.

4.4 Programming Procedure

UsetheSELECTkeytoadvancethroughtheseriesofpromptswithoutchangingtheprogrammedvalues.Ifyouchangeavalueandwanttosaveittomemory,usetheENTERkey,whichwillalsoadvanceyoutothenextfeature.

With the “PROGRAM MODE” prompt displayed inthedisplaywindow,pressthe

key to proceed to the first programmablefeature.

4.5 Shutdown Procedure

Whenremovingyourdehydratorfromservice,youmayneedasubstitutedryairsource.CallAndrewTechnicalService.TelephonenumbersarelistedinSection10.

Beforeturningofftheunit,notifypersonnelthatalarmsmaybeactivated.

ToshutdowntheXTseriesunit,turntheON-OFFpowerswitchtotheOFFpositionandclosetheisolationshutoffvalveslocatedintheoutput/inputlinestoretainsystempressure.

Disconnectbyunscrewingthepolytubecompression fittings located at the top of the unit.

SELECT

SELECT


18

Section 5Theory of Operation5.1 Dehydrator

Thepatenteddryingsystembeginsatthecompressor, where filtered ambient air (refer to pipingschematicSection2)iscompressed.Thecompressedairisthencooledandcondensedintheheatexchangerafterwhichwaterdropletsare separated in the water filter. The saturated air then passes through a coalescing filter for theremovalofadditionalwaterandparticulateandthenintothepatentedmembranecartridgewheretheremainingwatervaporisremovedbypressuredifferential.

The water separated in the filters is blown toapanontheheadofthecompressorandisevaporatedbytheheatofcompression.The flow of the water is controlled by a timer controlledsolenoid.

Themembranetubeseparatesmoisturefromairbyapressuredifferentialacrosssemipermeablefibers. The water vapor and a small amount of the air permeate through the filter walls leaving theexitingairwithareducedwatervaporcontentof-45°C(-50°F)dewpoint.Theairthatpermeates through the fibers purges the water vaporoutofthetube’sventports.

Thispatenteddryingprocesscontainsnomovingparts,thusreducingmaintenanceandincreasingreliability.

5.2 Dehydrator Control

Theultra-dryairexitsthedehydratoratthetopoftheunit.Lowpressure,Highpressure,HighHumidity,andExcessrunalarmsaretappedintotheairlinewithinthedehydrator.


19

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22

Section 6Maintenance Thedehydratorrequiresmaintenance

semiannuallyandaftereach3000hoursofoperationtoensurecontinuedreliableoperation.

Danger:Service personnel should observe all safety regulations. Do not perform maintenance on equipment without first turning off the main power supply. Under certain conditions, dangerous potentials may exist when the main power supply controls are in the off position. Only qualified technicians should attempt to effect maintenance or repairs on electrical equipment.

Semi-Annual Maintenance.Thesemi-annualmaintenanceconsistsofapreventivemaintenanceinspectionandreplacementofthe compressor air filter. These tasks can be performed easily in the field as described below.

3000 hour Overhaul.Adehydratoroverhaulisrequiredafterthecompressorhasrunatotalof3000hours,asindicatedonthecompressorruntimemeter.Thedehydratoroverhaulincludesa compressor overhaul, water filter, high temperaturetubingandhoseclamps.

Thedehydratoroverhaulkit,seeSection8,includesallthenecessarypartsandinstructions.Or,ifyouprefer,Andrewoffersadehydratoroverhaulservice.ContactAndrewTechnicalService.TelephonenumbersarelistedinSection10.

RefertoSections8.4.7and8.4.10forprocedures to replace water filter elements.

In Case of Difficulty. Ifthedehydratorwillnotoperateorifthereareotherproblems,refertothetroubleshootingproceduresinSection7.

6.1 Semi-Annual Preventive Maintenance Inspection

Inspectionincludescheckingforlooseor damaged hoses, fittings and electrical connections.Checkthefollowingitems:

6.1.1 Check Water Filter and Coalescent Filter and Elements

Verifythereisnowaterbuild-upinthefilter bowls. If there is water, refer to the troubleshootingproceduresinSection7forcorrectiveaction.Replacementofthewaterfilter and coalescent filter and their associated elementsandbowlsiscoveredinthepartsreplacementsectionofthismanual.RefertoSection8.

6.1.2 Check Electrical Connections

Checkforlooseorcorrodedelectricalconnections.Alooseterminalcancauseerraticoperationandunnecessarydowntime.Checkthescrew-onandpush-onterminalsandtightenasrequired.

6.1.3 Check Ground Wire

Checkforpropergroundwireconnectiontoprotectoperationspersonnel.Agreengroundwireisattachedbetweenthepowerterminalstripandthedehydratorchassis.Thegroundlugscreworstudnutmustbetighttoprovideaproperground.

6.1.4 Check Run Time Meter

Checktheruntimemetertodeterminethedutycycleofthedehydrator.Ifthedehydratorhasbeenrunningmorethan10%ofthetime,checkforsystemleaks.Alsochecktoseeifitistimetoschedulethe3000-hourmaintenance.

6.1.5 Replace Compressor Air Filter

The air filter protects the compressor from contaminationandextendstheservicelifeofthecompressor.Itismadeofopencellmaterialandshouldbereplacedeverysixmonthsormoreoftenifthedehydratorislocatedinadustyenvironment.

Carefully pull off the filter cover and remove the filter element. Install the new filter element and replace the filter cover, being certain that it is completely seated. To replace the filter housing, unscrewthehousingfromthecompressorheadand replace with new filter housing.


23

If you experience difficulty with your dehydrator, usethetroubleshootingproceduresdescribedbelow.Performthetests,inspectionsandcorrectiveactionscorrespondingtotheproblemintheorderlisted.Section2forpipingconnectionsandFigure6forwiring.Figure7andFigure8listsreplaceableparts.

Andrew Technical Service.Ifyoucannotcorrecttheproblemorifthereareotherdifficulties, contact the Andrew Technical Service nearestyou.TelephonenumbersarelistedinSection10.

Section 7In Case of Difficulty

Note: Run the dehydrator to dry it out prior to

connecting it to the system. Run it until the high humidity alarm clears (if so equipped). The drying process should take about 45 minutes, if the membrane dryer was not saturated. If the membrane dryer was saturated, drying may take up to 48 hours.

Caution:High voltage exists inside the unit. Disconnect the unit whenever performing troubleshooting operations.

Troubleshooting Procedure

Problem/Condition Solution

DehydratorON/OFFswitchdoesnotlight,unitdoesnotrun.

DehydratorON/OFFswitchdoesnotlight,unitruns.

DehydratorON/OFFswitchdoesnotlightandthedisplayisblank.

On/offswitchlightsdisplayisblank.

Checkthebreakeradjacenttotheon/offswitchif,tripped(whiteindicatorexposed)thenresetbreaker.

Ifon/offswitchlightstillfailstolight,makesurethatunitispluggedinandthepoweroutletisoperating.

Ifyoustillhavenolight,unplugunit,openthefrontdoorpanelandcheckforlooseconnections.Refertowiringdiagramforproperwireconnection.DisconnectACpower,openfrontdoors,checkforlooseconnections(refertothewiringdiagramforproperconnections).ReplacecoverandreconnectACpower

Replaceon/offswitchifconditionpersists.Checkacvoltageconnectiontotheunit.Checkfuseandreplaceifdefective.SeeSection8.3forreplacements.Ifproblempersists,disconnectdehydratorfromacpower,openfrontdoorpanelandcheckforlooseconnections(refertothewiringdiagram).Closefrontdoor,reconnectpowerandturnonunit.ifproblemisnotcorrected,contactAndrewTechnicalServiceforassistance.

Note: This problem can be caused by a lightning induced power surge. The dehydrator is equipped with surge protectors which may cause the fuse to blow when a surge is encountered.Checkfuseandreplaceifdefective.SeeSection8.3forreplacements.DisconnectunitfromACpower,openfrontdoorpanelandcheckforlooseconnections(refertowiringdiagram).

Caution: High voltage is present inside the enclosure and on the power supply board at this point.Checkthevoltagebetweenpins1and2ofTB2onthepowersupplyunit.Itshouldbe4.5to5.5volts.Ifnotwithinthisrange,replacepowersupplyboard(see8.4.18forpartnumbers).Ifitiswithinrangeandnolooseconnectionsarefound,contactAndrewTechnicalServiceforassistance.SeeSection10forphonenumbers.


24

Dehydratorstartsandstopsbeforereachingsufficient line pressure.

Lowpressurealarmondisplay.

HighPressurealarmondisplay.

Humidityalarmondisplay.

CAUTION:

The humidity sensor is light sensitive. DO NOT remove it from the brass fitting when the dehydrator is powered up.

Excessruntimealarmondisplay.

Dehydratorturnsonforonlyafewseconds,andthenshutsoff.

Check for leaks in the transmission lines or line tubing.Check for kinks in line tubing. Replace tubing where necessary.Check remote sense line. Make sure any isolation valve is wide open.VerifythattheLowPressureAlarmSetPointisbelowthecompressorONsetpoint.Isolatethelowpressureconditionbycheckingallfittings with soapy water. Make sure that all system tubing is properly seated in the fittings. Check for loose interface points and holes in the transmissionlines.Correctanyconditionsthatexistwherepressureisleaking.Iftheconditionpersists,callAndrewTechnicalServiceforassistance.

Verifythecompressorturn-offandhighpressurealarmsettingsasshowninsections4.2.2.TheHighPresssureAlarmsetpointmustbeabovethecompressorOFFsetpointVerifythatthehighPressureAlarmsetpointissetabovethecompressorOFFsetpoint.TheHighPressureAlarmcanbetriggeredbyambienttemperaturerises.Ifthisisareoccurringproblem,thesetpointsshouldbeadjustedtoincreasethedifferentialbetweencompressorOFFandHighPressureAlarmvalues.ContactAndrewTechnicalServiceforfurtherassistance.Check the dehydrator for build-up of water in the filter bowls.If there is a build-up of water in the water filter bowl, use a soapy water solution to check for leaky fittings in the dehydrator. If no leak can befound,theproblemisprobablywiththecompressor.Rebuildkitsfor each dehydrator are specified in section8.TheunitmayalsobereturnedtoAndrewforrepair.ContactAndrewTechnicalServiceforfurtherassistance.Note: Once the problem has been corrected, run the dehydrator off line until the humidity alarm clears. If the membrane dryer has been saturated, this process can take up to 48 hours of continuous running.Checktheprogrammingoftheexcessruntimedisplayasshowninsection4.2.2.Thesetpointshouldbeatleast50%abovethenormalruntime.

Theunitiscyclingonandoffatlessthana30minuteinterval.Seetroubleshooting section “Dehydrator starts and stops before reaching sufficient line pressure”.

Check system for leaks. See troubleshooting section “Low pressure alarm on display”.

Checktheacvoltagesupplytotheunit


25

Section 8Parts Replacement and Dehydrator Overhaul Andrewdehydratorshavebeendesignedto

providemanyyearsoftrouble-freeserviceandwillrequireminimalmaintenance.Thedisplaypanelcontains,asoneofthestandardfeatures,areadingofactualcompressorrunhours.

Notice: To provide continuous reliable operation

the dehydrator must be ovehauled every 3000 hours of compressor peration. The dehydrator overhaul kit, listed below, contains all necessary parts. Alternatively, you may send your dehydrator to Andrew for overhaul.

Check website for latest updates to manual and parts list.

Three-Year Recommended Dehydrator Spare PartsItem QTY. PartNumber

1 CompressorAirIntakeFilters(bagofsix) 1 46173-12 Compressor Air Intake Filters (complete assembly housing w/filter) 1 46173

3 Dehydrator Overhaul Kit. Includes compressor overhaul kit, high temperaturehoseclampsXT2000 1 AE01K-C0398-018

4 XTControlExtensionCablebetweenmasterandslaveunits,7ft 1 AE01C-D0534-207


26

8.1 Parts Replacement Procedures

Whenthedehydratorruntimereaches3000hours,itwillbenecessarytorebuildthecompressorandreplacethehoses,clamps,water and coalescent filter elements. The necessarypartsandinstructionsareincludedintheoverhaulkit,listedinSection8.

FollowingareproceduresforreplacementofthepartslistedinSection8.

8.2 Unit Shutdown and Removal

InordertoperformpartsreplacementontheXTSeriesDryLine®Dehydrators,itwillbenecessarytoturnofftheunitandremovethemfromservice.Asthisisdone,oneormoreofthealarmsmaybeactivated.Personnelwhomaybemonitoringthesealarmsshouldbeinformedpriortotheunitsbeingturnedoff.Itwillalsobenecessarytocloseoffthetransmissionlinesconnectedtothedehydratortoavoidlosingpressureintheselines.Oncethesestepshavebeentaken,turnoffthepowertobothunits,disconnectthealarmconnectionsandunplugtheunit.Theunitscannowbemovedtoasuitablework tableforpartsreplacement.

8.3 Door and Panel Removal

Caution: Disconnect electrical power from the unit before removing the doors.

Carefullyloosenthescrewsinthefrontdoorsandswingthemopen.

Loosenthescrewsinthesidepanelsandremovethesidepanelsbyliftingthemawayfromtheunit.

8.4 Replace Power Switch

Disconnectthefourquickdisconnectconnectorsfromthepowerswitch,carefullynotingthelocationofeachwire.Compresstheretainersontheswitchandpushtheswitchoutthefrontofthechassis.Itmaybenecessarytorocktheswitchfromtoptobottomtoremoveit.Replaceswitch,bysnappingitinplace.Reconnectthefourwires.

8.5 Replace Circuit Breaker

Thecircuitbreakerislocatedontheupperfrontdoorofthedehydrator.Disconnectthetwoquickdisconnectconnectorsfromthecircuitbreaker,carefullynotingthelocationofeachwire.

Toremovethecircuitbreaker,compresstheretainersonbothsidesandpushitthroughthefrontpanelopening.Replacecircuitbreaker,snappingitinplace.Reconnectthetwowires.

8.6 Replace Compressor Control PCB

ThecompressorcontrolPCBcontrolsthecompressorON/OFFcycles,solenoiddrainvalvetimingandmonitorsthecompressorcurrentsensing.ToremovethecontrolPCB,openthefrontdooroftheunit.DisconnectthecableconnectorsfromthethreelocationsonthePCB.RemovethehardwarewhichscrewthecontrolPCBtothedoor.InstallthereplacementcontrolPCBbyreversingtheaboveprocess.

8.7 Replace Compressor

8.7.1 Disconnect Wiring

Withthesidedoorsremoved,removethecoverplateonthecompressorcoveringtheelectricalconnections.Removethegroundscrewandremovethegreenwirefromtheconnectionbox.Usingwirecutters,cutthewhiteandblackleadsasclosetothebuttspliceaspossible.Trim3/8inch(10mm)ofinsulationfromthewire(s)andinstallthereplacementbuttspliceonthesetwowires,leavingthecompressorendofthespliceun-crimped.Thiswillbeusedlatertoconnecttothereplacementcompressor.Thecompressorshouldnowbefreeofanyelectricalconnectiontotheunit.

8.7.2 Disconnect Tubing Removethemilkywhitehosewhichrunsfrom

thecompressoroutlettotheheatexchangerinlet.Againitmaybenecessarytocuttheclampandhosetoremoveitfromtheheatexchanger.Usingtheoldtubingasatemplate,cutthereplacementtubingtolengthusingasharpknife.Removethedrippanassemblyfromtheheadoftheoldcompressorandremountittothereplacementcompressor.Thecompressorassemblyshouldnowbefreeofalltubingconnections.


27

8.7.3 Compressor Remount and Reassembly Remove the bolts [ (4) XT2000 ] which secure

thecompressortothebackmountingplate.Carefullyremovethecompressorassemblyfromthechassis.

Mount the compressor assembly to the back mountingplateusingtheexistinghardware.Donotovertightenthemountingscrews.

Reconnectthehosesclamps,(assuppliedwiththecompressorreplacementkit)andwiring.

8.8 Replace Heat Exchanger

Theheatexchangerislocatedatrightsideoftheunitunderthesidepanel.Undernormalconditionstheheatexchangershouldnotneedtobereplaced.

Replaceitifthedehydratorhasbeendroppedorotherwisedamagedsuchthattheheatexchangerisleakingair.

8.9 Replace Water Filter Element - 3000 hour Maintenance

Replace the water filter after each 3000 hours of operation.

Whenambientroomairiscompressedinthedehydratorcompressor,liquidwaterisformed.Thisliquidwatermustberemovedinordertoallowthemembranedryertofunctionatitspeakefficiency. As the air exits the compressor, it is cooledintheheatexchangerandthenentersinto the water filter. The air swirls around the inside of the filter bowl, separating the liquid water out on the sides of the filter bowl. A 5.0 micron filter is also provided in the water filter to prevent water droplets from exiting the filter. This 5.0 micron filter also filters out any dust particlesorothercontaminantswhichwouldlessen the efficiency of the membrane dryer.

To replace the filter element, twist and remove the filter bowl from the cast housing. Unscrew the filter element from the cast filter housing and replace with a new filter. Do not attempt to clean the filter element. If it is necessary to clean the filter bowl, use a mild soap and water solution andrinsewithwater.Donotusesolvents.Reassembletheunitbyreversingtheaboveprocedure.Checkforleaksbyturningtheunitonandapplyingadilutedetergentandwater

solutionatthebowl/housingsealandatthehosefittings which were reconnected. If no leaks are found,theunitisreadytoreturntoservice.Ifleaksarelocated,repairtheleakandrecheckfor additional leaks. Leaking fittings must be repairedortheunitwillnotfunctionproperlyandcanresultindamagetothetransmissionlinesystem.

8.10 Replace Coalescing Filter Element

The coalescing filter is located downstream from the water filter. Its function is to remove any “water fog” which may still be present in the air leaving the water filter. The coalescing filter traps any fine liquid water particles, including aerosolsandcausesthemtocoalesceintolargerdroplets.Thesedropletsfalltothebottomofthebowlandareblownoutandcarriedtothecompressorhead,wheretheyevaporate.

To replace the filter element, twist and remove the filter bowl from the cast housing. Unscrew the filter element from the cast filter housing and replace with a new filter. Do not attempt to clean the filter element. If it is necessary to clean the filter bowl, use a mild soap and water solution andrinsewithwater.Donotusesolvents.Reassembletheunitbyreversingtheaboveprocedure.Checkforleaksbyturningtheunitonandapplyingadilutedetergentandwatersolutionatthebowl/housingsealandatthehosefittings which were reconnected. If no leaks are found,theunitisreadytoreturntoservice.Ifleaksarelocated,repairtheleakandrecheckfor additional leaks. Leaking fittings must be repairedortheunitwillnotfunctionproperlyandcanresultindamagetothetransmissionlinesystem.

8.11 Replace Cooling Fan Thecoolingfanventilatesthedehydrator

enclosurethuscoolingthecompressorandtheheatexchanger.Failureofafancanresultinsaturationofthemembranedryeranddamagetothecompressor.

Toremoveafan,disconnectthefanleadsandremovethemountinghardware.Installthereplacementfanusingtheexistinghardware.Orientationoftheacpowerleadsisnotcritical.


28

8.12 Replace Microprocessor Board

Themicroprocessorboardassemblyincludesthedisplay,themicroprocessor,compressorpressuresensor,theprocessorcontainingthemicroprocessorprogramming,aswellasotherelectroniccomponents.Acomponentfailureonthemicroprocessorcircuitcardwillnecessitatereplacementoftheentirecircuitboardassembly.

Toremovethemicroprocessorcircuitboardassembly,openthefrontdoorontheunit.Disconnectthewiringfromthemicroprocessorcircuitboardbeingcarefultonotethelocationofeachwireasitisremoved.Removethehardwarewhichsecurestheboardtothedoorpanel,andremovethemicroprocessorcircuitboard.Installthereplacementmicroprocessorcircuitcardassemblybyreversingtheaboveprocess.


29

Section 9Specifications

Optional items:Systempopoffvalve1/8NPT1PSI AE01J-A0174-009Systempopoffvalve1/8NPT2PSI AE01J-A0174-001Systempopoffvalve1/8NPT3PSI AE01J-A0174-0011StreetTee1/8NPT 3022

Specifications for Dehydrators XT SERIESOutputPressureRangeAdjustable 2to35kPa(0.3to5.0psig)OutputFlowRate(nominal) XT2000; 56 SLPM (2.0 SCFM)

OutputDewPointbetterthan-45°C(-50°F)at92%RHat+40°C(104°F)

OperatingTemperature +1°Cto+40°C(+33to+104°F)

LowPressureAlarm 0.7to2kPa(0.1to0.3psig)(6.7toSetpointRange201mbar(3psig))

HighPressureAlarm21to41kPa(3.0to6.0psig)(201toSetPointRange403mbar)(3.0psigtoSetPointRange6.0psig)

HighHumidityAlarmFixed 7.5%RH,factorysetExcessRunAlarmSetRange Adjustableto255min.PowerFailAlarm Lossofinputpower

AlarmContactRating Form “C” dry contacts,2A@30Vdc

InputPowerElectrical connections requiring separate circuits when multiple dehydrators are installed.

230Vac,50/60Hz,0.03AStandby11.5ARunning40Astarting

OutputAirConnectors 3/8” poly tube compression fittingRemoteSensinginput 3/8” poly tube compression fitting

Dimensions

height107cm(45.25in.)width42cm(16.5in.)depth45cm(17.5in.)

Weight(net,nominal) XT200059kg(130lbs)

Overpressurelimitinternal 110kPa(16psig)PopoffValve


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Section 10Customer Support10.1 24 Hour Technical Service Hotline

AndrewmaintainsaTechnicalServiceHotlineforassistancewithproductrepairsandservice.

AndrewCorporation ACommScopeCompany 3WestbrookCorporateCenter,Suite900 Westchester,IL60154USA

From North America Telephone:1-800-255-1479 Fax(U.S.A.):1-800-349-5444

International Telephone:+1-779-435-6500 FaxNumber:+1-779-435-8579

Web Access Internet:www.commscope.com

http://www.commscope.com/andrew/eng/product/antennas/ter_microwave/pressurization/index.html

Email:#[email protected]

10.2 Free Loaner Program

Andrewmaintainsarepaircenterforpressurizationequipment.FreeloanerunitsareavailableforusewhileyourequipmentisbeingrepairedbyAndrew.CallourTechnicalServiceHotlinefordetails.


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© 2008 CommScope, Inc. All rights reserved. (9/08) Rev: C

Andrew Corporation

XT Series Large Capacity DryLine®

Dehydrator System Three Year Limited Warranty

Seller warrants that any Andrew XT2000 type DryLine® Dehydrator is transferred rightfully and with good title; that it is free from any lawful security interest or other lien or encumbrance unknown to Buyer; and that for a period of thirty-six months (36) months from the date of installation or 3000 hours of actual run time (except for the compressor which is for a period of twelve (12) months or 1000 hours), whichever shall occur first, such equipment will be free from defects in material and workmanship which arise under proper and normal use and service. Buyer's exclusive remedy hereunder is limited to Seller's correction (either at its plant or at such other place as may be agreed upon between Seller and Buyer) of any such defects by repair or replacement at no cost to the Buyer; provided that the cost of any transportation in connection with the return of the equipment for the purpose of repair or replacement shall be borne by Buyer. Expressly excluded from the terms of this warranty are defects caused by: (i) faulty installation, (ii) lack of proper inspection or maintenance, (iii) and usage not in accordance with published ratings, specifications, or instructions. The provisions of this warranty shall be applicable with respect to any equipment Seller repairs or replaces pursuant to it.

SELLER MAKES NO WARRANTY, EXPRESS OR IMPLIED, OTHER THAN AS SPECIFICALLY STATED ABOVE. EXPRESSLY EXCLUDED ARE ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR PURPOSE. THE FOREGOING SHALL CONSTITUTE ALL OF SELLER'S LIABILITY (EXCEPT AS TO PATENT INFRINGEMENT) WITH RESPECT TO THE EQUIPMENT. IN NO EVENT SHALL SELLER BE LIABLE FOR SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES, INSTALLATION COSTS, LOST REVENUE OR PROFITS, OR ANY OTHER COSTS OF ANY NATURE AS A RESULT OF THE USE OF EQUIPMENT MANUFACTURED BY THE SELLER, WHETHER USED IN ACCORDANCE WITH INSTRUCTIONS OR NOT. UNDER NO CIRCUMSTANCES SHALL SELLER'S LIABILITY TO BUYER EXCEED THE ACTUAL SALES PRICE OF THE EQUIPMENT PROVIDED HEREUNDER. No representative is authorized to assume for Seller any other liability in connection with the equipment.

xt series dryline® dehydrator user manual - launch 3 telecom · xt series dryline® dehydrator...

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