MT050B SERIES DryLine DEHYDRATOR USER … · MT050B SERIES DryLine® DEHYDRATOR USER MANUAL 4 Section 1 General Information 1.1 Introduction This manual contains the information you

MT050B SERIES DryLine® DEHYDRATOR

USER MANUAL

Bulletin AE01B-A0554-001 Rev: N © 2009 - 2012 CommScope, Inc. All rights reserved. (12/12)

MT050B SERIES DryLine® DEHYDRATOR USER MANUAL

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Table of Contents

Section 1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.3 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.4 Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 1 - Terminal Strip Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Figure 2 - Terminal Strip Discrete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Figure 3 - Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61.5 SpecificationsMT050BDehydrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Section 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.1 Unpacking and Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.2 Controls and Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.2.1 Event Log Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.3 InstallingtheDehydrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.3.1 19”RackMounting/wallmountingorsetonoptionalshelf . . . . . . . . . . . . . . . . . 72.4 PowerConnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.4.1 ACPower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.4.2 DCPower. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.4.3 TesttheDehydrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.4.4 Connect to Dry Air Cable System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.5 ConnectingtheAlarmOutputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.6 ConnectingDehydratortotheTransmissionLine . . . . . . . . . . . . . . . . . . . . . . 82.7 PurgingtheTransmissionLine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.8 Adjusting Output Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Section 3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103.0 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103.1 RegularMaintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103.2 PreventiveMaintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103.3 DehydratorFilterElementReplacement. . . . . . . . . . . . . . . . . . . . . . . . . . 103.4 Annual Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103.4.1 Checktheelectricalconnections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.4.2 Checkthegroundwire. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.4.3 Checkthehourmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.5 PartsReplacementandDehydratorOverhaul . . . . . . . . . . . . . . . . . . . . . . 113.5.1 InCaseOfDifficulty: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.5.2 Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.5.3 OverhaulProcedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.5.4 UnitShutdownandRemoval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.5.5 Removethecompressorforoverhaul. . . . . . . . . . . . . . . . . . . . . . . . . . . 12


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3.6 Service Restoration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Section 4 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure4-WireSchematicwithSummaryAlarm . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure5-WireSchematicwithDiscreteAlarm . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 6 - Pneumatic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Section 5 Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 OverhaulKit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 MT050B-KIT-OVRHL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 FilterElementReplacementKit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 MT050B-KIT-ELMNT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 FilterBowlAssembleReplacementKit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 MT050B-KIT-FLTRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 FilterBowlAssembleandDryerTubeReplacementKit . . . . . . . . . . . . . . . . . . . . . 17 MT050B-KIT-DRYER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Solenoid Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 KitMT050B-KIT-SOLND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Section 6 Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176.1 InCaseofTrouble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176.2 InitialStepsbyCOMMSCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186.3 Repair Center Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186.4 RoHSInquiries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Section 7 DC Inverter Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197.2 Installingthe24VdctoACinverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197.3 Installingthe48VdctoACinverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table of Contents continued


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Section 1 General Information1.1 Introduction

Thismanualcontainstheinformationyouneedtoinstall,operateandmaintainyourMT050BSeries DryLine®dehydrator.Pleasetakethetimetoreadthismanualbeforeattemptingtooperateorservicetheunit.

This appliance is not intended for access by the general public.

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

1.2 Description

MT050BSeriesDryLine®dehydratorsprovidedryairforpressurizingsmall(uptoor1700liters,60cubicfeetinvolume)antennaandtransmissionlinesystems.Thedehydratorsproduce-45ºC(-50ºF)dewpointdryairatanoutputrateof3.4SLPM(0.12SCFM).

Eachdehydratorconsistsofanelectrically-driven air compressor, a membrane dryer assembly, an automatic transmission line pressure sensing system and alarm outputs housedinarigidmetalchassis.Itisdesignedtomountinastandard19”equipmentrackoronashelforonthefloor.Thefrontpanelfeaturesacontrolinterfacewithdisplayforalarmsandpressure.Foreasyserviceability,powerconnections, alarm output connections and all filterelementsareaccessiblefromtherearorfrontoftheunit.

TheMT050Bmaintainstransmissionlinepressuresat21kPa(3.0psig).Itisintendedforstandardmicrowaveantennaapplicationsandanyothertransmissionlinepressurizationrequirementthatsupportsamediumpressurelimit.Theoutputpressureisadjustablefrom2.0psig to 6.0 psig.

1.3 Operation

MT050BTheoryofoperation. TheMT050BseriesofDryLine®dehydrators,whilesimilarinmoistureremovaltechnology,operatesdifferentlythansomeoftheDryLine®

seriesofdehydrators.Inordertoprovideaconstantsupplyofdryairtosmallairvolumesystems, and to maintain an acceptable dryness levelintheproductairstream,ahigh-pressurereservoirtankisutilized.Thisreservoirtankisconnectedtoapressureregulatorandorificetoyieldafixedoutputpressureof21kPa(3.0psig)andanominalflowrateof3.4SLPM(0.12SCFM).Inadditiontosupplyingtheoutputair,thereservoirtankalsoprovidesthedryairforthefeedbackloop.Thefeedbackloopisnecessarytomaintainthedrynessofthemembrane cartridge.

Duringnormaloperation,thebleedairinthefeedbackloopwillcausethepressuretoslowlydropintheinternalreservoirtank,andtheMT050Bcompressorwillcycleautomatically.Thesecycleswilltakeplaceregardlessofthesystemvolumeorconditionofthetransmissionlinethedehydratorisconnectedto.Therateofthesecycles,however,willvary.

Whenconnectedtoaverytightsystem,ortheoutputiscapped,thedehydratorwillcycleapproximatelyevery60minutesandmaintain21kPa(3.0psig)systempressurewhenopentoatmosphere,thedehydratorwillcycleapproximatelyevery3minuteswhileprovidingcloseto3.4SLPM(0.12SCFM)ofdryair.Asystemthatleakswillhaveacycletimesomewhereinbetween,dependingontheseverityoftheleaks.

Thedisplaywillalsoreflectapressurebetween0and21kPa(3.0psig)whiletheoutputflowisbetween0and3.4SLPM(0.12SCFM).Thepressuresensortracksthepressurebeyondtheflowcontrolorificeandwillshowtheactualpressureinthetransmissionlines(ortothedistributionmanifold).


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Duringtheinitialpressurizationofthetransmissionline,thedehydratorwillcycleevery2to4minuteswiththesystemat0psigpressure.Asthedehydratorpressurizesthesystem,thecycletimeswillincreaseandthepressurewillriseuntilthedehydratoroutputisbalancedwiththesystemleak,atwhichpointthecycletimeswillstabilize.

1.4 Alarms

TheMT050BoffersLowPressureandExcessRunalarmsasastandardfeature;asummaryalarm connection is provided on all units. Alarm conditionsareindicatedonthedisplay.ThealarmsareFormCdrycontactsandhaveconnectionoptionsfornormallyopen(NO)ornormallyclosed(NC)configurations.

Additionally, a discrete alarm option is available withdiscreteconnectionforLowPressure,ExcessRun,HighHumidityandPowerFailalarms.Thediscretealarmversionalsoincludes a summary alarm contact.

Theexternalalarmmonitoringsystem(suppliedbyothers)isconnectedtotheterminalstriplocatedontopofthecabinet.Asmallslottedscrewdriverisnecessarytomaketheconnections.

Theconnectionstothealarmstripareasfollows;refertoFigure1forcorrectlocationsandcolorsofthewiresontheterminalstrip

Note: All of the alarms clear and reset automatically, but can be manually reset in the display menus. However, if the alarm condition still exists, the alarm will return immediately after being reset.

WIRE WIRE ALARMTERMINAL COLOR FUNCTION 1 RED SUMMARYNO 2 WHITE SUMMARYCOM 3 BLACK SUMMARYNC

Summary Alarm

WIRE WIRE ALARMTERMINAL COLOR FUNCTION 1 WHITE EXCESSRUNNO 2 TAN EXCESSRUNCOM 3 BLUE EXCESSRUNNC 4 BROWN HIGHHUMIDITYNO 5 PINK HIGHHUMIDITYCOM 6 GREEN HIGHHUMIDITYNC 7 BLACK POWERFAILNO 8 VIOLET POWERFAILCOM 9 RED POWER FAIL NC 10 ORANGE LOWPRESSURENO 11 YELLOW LOWPRESSURECOM 12 GRAY LOWPRESSURENC

DISCRETE Alarm

Alarm Definitions:

Summary: ActivateswhentheExcessRun,and/orLowPressurealarmsaretriggered.ItwillalsoreportHighHumidityifunitisequippedwithfullalarms.ThesummaryalarmdoesnotreportPowerFail.

Power Fail: Activateswhenpowerisremovedfromthedehydrator.Thisincludesturningthepoweroffattheswitch.

High Humidity: Activateswhensystemordehydratoroutputhumidityriseabove7.5%relativehumidity.Atinitialinstallation,thisalarmwillcontinuetoalarmuntilthesystemhasbeenproperlypurged.

Excess Run: Factory strapped run time set in accordancewiththenormalruntimeforthedehydratorapplication.Selectable times are 1, 10, 30, 120 and240minutes,withthe10minuteselectionusedontheMT050Basthedefaultsetting.

Low Pressure: Ifsystempressurefallsbelowthelow–pressuretriggerpoint(6.9kPa(1.0psig)ontheMT050B),thelow-pressurealarmsensorwillactivateanalarmcontact.Thisalarmisanindicationofasignificantsystemleakoradehydratorfailure.

Figure 1 - Terminal Strip Summary

Pin 3 Pin 1

Pin 1 Pin 12

Figure 2 - Terminal Strip Discrete


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Output Pressure Constant,kPa(psig) 21(3.0)

Outputcapacity 3.4SLPH(1.2SCFH) 5.6SLPM(0.2SCFM) (total,approx.)

OutputDewPoint, –45°C(-50°F) or better

OperatingTemperatureRange -10°to+50°C (+14°to+122°F)

ElectricalInput 115±10%Vac,60Hz 240±10%Vac,50Hz 24or48VdcwithInverter

OutputConnector 3/8”polytube,compression

Dimensions Height,cm(in) 48.26(19) Width,cm(in) 17.8(7) Depth,cm(in) 41.91(16.5) Netweight,kg(lb.) 16.1(351/2)

Alarms

PowerFailAlarm lossofinputpower

HighHumidityAlarmSetPoint 7.5%RH, factoryset

ExcessRunAlarm 10minutes,factoryset

LowPressureAlarm,kPa(psig) 6.9(1.0)

1.5 Specifications MT050B DehydratorFigure 3 - Control Board

HUMIDITY SENSOR

P3

NOT IN USE

NOT IN USEP7

SUM ALARMP8

(NO/NC)

KEYPADJ4

DISCRETE ALARMSP9

115 Vac COMP

OUTPUTP4

(MT/PMT SERIES)

Vdc INPUTP2

(MR050B ONLY)

LOW PRESSURE

SENSORU4

HIGH PRESSURE SENSOR

U2

USBP1

SOLENOID(FILTER DRAIN

MT/PMT SERIES)

P6AC MAIN

[

[


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Section 2Installation2.1 Unpacking and Inspection

Open carton.

Removethetoppieceoffoampackaging.Carefullyremovetheinstallationaccessoriesandmanualanddehydrator.Checkthedehydratorforshippingdamagesuchasdentsor loose parts.

2.2 Controls and DisplaysDefault password is 1111

Familiarizeyourselfwiththecontrolsanddisplayspriortoinstallingortestingthedehydrator.

Keypad Controls:

Advancesdisplay(scrollsahead)tothenextdisplayorprogrammodewithoutchangingthevaluesinthemicroprocessormemory.

Entersintothemicroprocessormemorythevaluesdisplayedinthewindowandadvancesdisplay(scrollsahead)tothenextprogramordisplaymode.

Numerically increase displayed settings in displaywindow.Whendepressedlongerthan1/2secondscrollingwilloccuratafasterrate.

Numerically decrease displayed settings indisplaywindow.Whendepressedlongerthan1/2secondscrollingwilloccuratafasterrate.

Usedtoallowtheuserquickaccesstothesystem event log.

2.3 Installing the Dehydrator

2.3.1 19” Rack Mounting/wall mounting or set on optional shelf

2.4 Power Connections

Confirmyourdehydratorelectricalinputmatchestheavailablepower.

2.2.1 Event Log Codes

EV=0 Event=PowerUp

EV=1 Event=HighHumidityAlarm

EV=2 Event=ExcessiveRunTimeAlarm

EV=3 Event=LowPressureAlarm

EV=4 Event=HighPressureAlarm

EV=5 Event=CompressorFault

EV=6 Event=LogCleared

EV=7 Event=PoweringDown

EV=8 Event=CompressorLifetimeEepromFail


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2.4.3 Test the Dehydrator

TurnthedehydratorONandchecktheoutputforairflow.

2.4.4 Connect to Dry Air Cable System

Placealarmconnectionwiresinproperterminalsandtightenthescrewontheterminalblock.

(Seesection1.4foralarmlocation)

Therelaycontactsareratedat2A(non-inductive),30Vdc.

2.6 Connecting Dehydrator to the Transmission Line

CAUTION:Check the antenna and transmission line system pressure rating before connecting the dehydrator to the system.

2.4.2 DC Power

TheMT050B-81X15(115Vac)canoperateon24Vdcor48Vdcwiththeadditionofanoptionalinverter.

For details see section 7.

CAUTION:Proper electrical connection is required. It is suggested a licensed electrician be contracted to connect the AC wiring to the unit, if it is connected directly to the mains. Failure to properly connect the power wires could result in a dangerous electrical shock hazard.

Toinsurethatallinternaldehydratorcomponentsareproperlydried,operatetheDryLine®unitforatleast45minutespriortoconnectingtheoutputairlinetothetransmissionlinesystem.

2.5 Connecting the Alarm Outputs

Toconnectthealarms,locatetheterminalblock(TB-1)ontopoftheunit.

Caution: Check the system pressure rating before connecting the dehydrator to the transmission line system.

CAUTION:This unit is designed for connection to a single phase power source. Connection to a 3 phase power source will cause significant damage to internal components.

Pin 1 Pin 12

Ensureanelectricalsafetygroundisinstalledonthegroundstudlocatedadjacenttothepowerinputconnector.(Itisintendedtobecustomerinstalledinthefieldtoyourhalogroundingsystem.)

MT050B-81015andMT050B-81315115 +10%Vac,60Hz

24or48Vdcwithinverter

MT050B-81026andMT050B-81326240 +10%Vac,50Hz

2.4.1 AC Power

ACunitsshouldbeconnectedintoastandard15Apowerreceptacleofthepropervoltage.Makesurethepowercircuitisproperlygrounded.

Twopowercordsaresupplied,one115VacAmericanandone240VacInternationalcordwithstrippedleads.

Electrical connections require separate circuits for dehydrator installation.


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1. Locate regulator

2. Loosen lock nut

3. WithunitrunningturnstemCWtoincrease.CCW to decrease output pressure.

4. Placefingeronoutputtoverifypressuresettingonthefrontdisplay.

5. Repeat step 3 and 4 until desired pressure is set.

6. Tightenlocknutandreturnunittoservice.

2.8 Adjusting Output Pressure

Outputpressurecanbeadjustedbetween2.0psigand6.0psig-adjustmentoutsidethisrangewillhaveanegativeimpactontheperformanceofthedehydrator.

Note:

If the transmission lines have not been purged, continue with section 2.7. Otherwise proceed to section 3.

2.7 Purging the Transmission Line

Airinthetransmissionlinesystemmustbereplacedwithdryairtoensuresatisfactoryoperationofthetransmittedsignal.

1. Determinethetotalsystemvolume.

2. Dividethesystemvolumebytheflowrateofthedehydrator3.4SLPM(0.12SCFM)todeterminethenumberofhoursneededforthepurgecycle.

3. Openthefarendofthetransmissionline.

4. Operatethedehydratorforaminimumthreepurgecycles.Ifpossible,operatefor12purgecyclestocompletelydrytheline.

Ifitisnotpossibletoopenthefarendofthetransmissionline,followthesesteps:

1. Connectthedehydratortothetransmissionlineandpressurizethesystem.Thesystempressureshouldreach21kPa(3.0psig).

2. Wait15minuteswhiletheairabsorbsmoistureinthesystem,thendisconnectthedehydratorfromthetransmissionlineandallowtheairtovent.

3. Repeatsteps1and2twelvetimestopurgethesystem.


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3.0 Maintenance

TheMT050BDehydratorrequiresrelativelylittlemaintenancetoensuresatisfactoryoperationoverlongperiodsoftime.Thissectionoutlinestherecommendedannualpreventivemaintenancefortheunitandthesuggestedoverhaulforevery6000hoursofcompressoroperation.

3.1 Regular Maintenance

TheMT050BDehydratorwillperformatanoptimumifitisroutinelycheckedforcorrectperformance.Thischeckinggenerallyconsistsofanannualinspectionoftheconditionoftheairintakefilterandanoverhaulafterevery6000hoursofcompressoroperation.Performanceofthesemeasuresissufficienttoensurecontinuedreliable operation.

3.2 Preventive Maintenance

TheannualmaintenanceofaMT050Bconsistsofapreventativemaintenanceinspectionofthedehydratorandcleaning(orreplacement)ofthefoamairintakefilter.

Thesetaskscaneasilybeperformedinthefieldwiththeunitconnectedtothetransmissionlinesystemandwithonlythefrontaccessdooropenedformaintenance.

3.3 Dehydrator Filter Element Replacement

Replacetheairintakefilter

Theairintakefilterprotectsthecompressorfromcontamination and dust. Periodic replacement extendsthelifeofthecompressor.Togainaccesstotheelement,pushinonthecoverandrotatethehouseapproximately1/4turnCCW.Thefilterismadeofafibrousmaterial.Itshouldbereplacedonceayear(ormorefrequently,iftheoperatingenvironmentisverydusty.)

Section 3Maintenance

CAUTION:

Do not apply oil or other chemicals to the filter element.

3.4 Annual Inspection Warning:Electrical Hazard! Unplug power cord before servicing unit.

Inspectionincludescheckingforlooseordamagehoses,fittingsandelectricalconnections.Removethefrontdoorandverifythatthereisnowaterbuild-upinthetwofilterbowlslocatedinsidethefrontcoverofthedehydrator.Theremaybesomedropletsofwaterinthefilterbowls(thelowerportionofeachbowl),butthereshouldbeonlyasmallamountofliquidineitherbowl

Makesuretheelementisseatedcompletelyinthehousingandthenreplacethecover.Ifanewelementisused,discardtheoldelement.

Ifthereisexcessivewater,refertothetroubleshootingsection4.Replacementofthefilterelementsinthewaterfilterandcoalescingfilterarecoveredintheoverhaulsectionoftheirrespective replacement kits.


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3.4.1 Check the electrical connections.

Checkthescrewatthepowerinputconnectortoensurethattheacpowercordissecurelyterminated.Checkthescrew-inalarmterminalstoensurethatallwireconnectionsaretight.

A loose or damaged connection may result in erraticoperationandunnecessarydowntime.Refertothetroubleshootingsectionifanelectrical problem is encountered.

3.4.2 Check the ground wire.

Checkthatanelectricalsafetygroundisinstalledonthestudontherearofthedehydrator.Thisconnectionpointisadjacenttothepowerinputconnector.(Itisintendedtobecustomerinstalledinthefieldtothecustomerhalosystem.)

3.4.3 Check the hour meter

Checkthehourmeterinthedisplaytohelptodeterminethedutycycleofthedehydrator.

Ifthedehydratorhasbeenrunningformorethan20%ofitsinstalledtime,checkthesystemsforleaks.Alsocheckthetimeonthemetertodetermineifitistimetoperformthe6000–houroverhaul.

3.5 Parts Replacement and Dehydrator Overhaul

COMMSCOPEMT050BDehydratorsaredesignedtogivemanyyearsoftrouble-freeserviceandrequireveryminimalmaintenance.Thedehydratorcontains,asastandardfeature,anelectronichourmeterthatrecordscompressorrunhours.Toensurecontinuousandreliableoperation,thedehydratormustbeoverhauledevery6000hoursofcompressoroperation.Theoverhaulkit,listedbelow,containsallofthenecessarypartstoperformthisoverhaul.Thedehydratoroverhaulkitincludespartstooverhaulthecompressorandcriticalcomponentsinthedehydratorthatoftenbecomewornovertime.

3.5.1 In Case Of Difficulty:

Ifthedehydratorisnotoperating,refertoSection 2 on Installation and Section 4 on Troubleshootingtheunit.

3.5.2 Tools

Thefollowingtoolsareusedinthemaintenanceandoverhaulprocedures.

• Adjustableopen—endwrench

• Allenwrench5/32

• #2Phillipsscrewdriver

• Smallflat-bladescrew-driver

3.5.3 Overhaul Procedure

WhentheMT050Bcompressorruntimereaches6000hours(oramultipleof6000hours)itistimetoreplacecertainitemsinthecompressorandtheairpathofthedehydrator.Theseincludethepistoncups,pistonsealsandheadgasketsofthecompressor,thefilterelementsinthewaterandcoalescingfilters,andthetubesectionconnectingthecompressoroutputtothecoalescingfilterinput.

3.5.4 Unit Shutdown and Removal

InordertoperformanoverhaulontheMT050B,theunitmustbeturnedoffandremovedfromservice.Asthisisbeingdone,thelowpressurealarmmayactivethroughareportingalarmsystem.Personnelmonitoringsuchanalarmshouldbenotifiedinadvancesothattheyareawareofthefactthatserviceisbeingperformed.Itisalsonecessarytodisconnectthedehydratordryairoutputfromthewaveguidesystemduringtheoverhaul.


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3.5.5 Remove the compressor for overhaul.

Toremovethecompressor,openthetoppaneloftheunit.

1. Disconnectcompressorwiringfromcontrolboard.

2. Disconnecttubingfromoutletofcompressor.

3 Removescrewsholdingcompressorpantochassisandremovepan/compressorassyfromchassis.

Followtheinstructionsincludedinthecompressoroverhaulkit.Whentheoverhauliscomplete, reinstall.

3.6 Service Restoration

RECOMMENDATION:

Ifthedehydratoroverhaulprocesshastakenmorethanafewhours,itisrecommendedthattheunitberunforonehourintotheroom,topurgethemembranedryerandtankofanyacquiredmoisture,beforereconnectingtothetransmission line system.

1

2


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Section 4TroubleshootingIfyouexperiencedifficultywithyourdehydrator,usethetroubleshootingproceduresdescribedbelow.

Caution: Electrical troubleshooting requires access to potentially dangerous voltages and should only be performed by a licensed electrician.

Problem/Condition Solution

Dehydratordisplaydoesnotlight,unitdoesnotrun.

Ifthedisplaylightfallstolight,makesuretheunitispluggedinandpoweroutletisoperating.Ifyoustillhavenolight,unplugtheunit,removetheunitcoverandcheckforlooseconnections.Refertothewiringdiagramforproperconnections.(Seefigure4forsummaryalarmunitsandfigure5fordiscretealarmunits.)ChecktoensurethatproperACvoltageisbeingsuppliedtotheinput.

Low-pressurealarmactivated.

Turnshut-offvalvetotheoffpositionandobservepressuregauge.Thepressuregaugelineshouldreadapproximately21kPa(3.0psig)andthealarmshouldclear.Ifalarmdoesnotclear,removecoverandverifytubingandwiringconnectionsaresecure.(Seefigure4forsummaryalarmunitsandfigure5fordiscretealarmunitsandfigure6forthepneumaticdiagram.)Ifthepressuredoesnotstayconstantaftershuttingoffthevalve,applyleakdetectortoisolatetheleakinthedehydrator(exercisecarewhenapplyingsolutionnottowetwiringorelectronics).Withdehydratorisolatedfromtransmissionline,observepressureintransmissionline.Ifpressuredrops,usealeakdetectorsolutiontolocateleaksinthetransmissionline.Repairleaksifpossible.IftheproblempersistscontactCOMMSCOPECustomerService.(Seesection6)

Compressor does not turn.

Checkthedisplayonthecontroller.ToggletheON/OFFswitch(attachedtopowerconnection).Checkinputvoltageperwiringdiagram

IftheproblempersistscontactCOMMSCOPECustomerService(Seesection6)

Filterbowlsshowexcessivewater.

Ensurethatthedrainlinetubing(exitingthebottomofthedrainsolenoid)isnotclogged.Whenthecompressorcyclesoff,airandmoistureshouldflowoutofthedrainline(intodrainpan).Ifsolenoiddoesnotvent,verifypropervoltageispresentwhencompressorisrunningandabsentwhencompressorisoff.Ifpropervoltageispresentandsolenoiddoesnotshift,replace(Seesection5)


14

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16

Figu

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HIGHPRESSURE

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SYSTEMOUTPUT

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REGULATOR


17

Section 6Customer Service6.0 Introduction

COMMSCOPEprovidesin-warrantyandout-of-warrantyrepairsaswellasdehydratorandcompressoroverhaulsfromseveralRepairCenters.CoordinationoftheseservicesisprovidedthroughthenearestSalesOfficeorCustomerServiceCenter.TheCenterisalsopreparedtohelpyouwiththefollowing:

• TechnicalAssistance

• Troubleshooting

• Repairs

• Loaner Units

• Spare Parts

• InstallationMaterials

• System Accessories

6.1 In Case of Trouble

Thefirststepyoushouldtakeiftroubledevelopsusingadehydratoristoreadtheoperatorsmanualandfollowthetroubleisolatingprocedures given in it.

Ifthestepsinthemanualdonotidentifyandremedytheproblem,thencontactanCOMMSCOPECustomerServiceCenterfor24–hourtelephoneassistance.RecordtheModelNumber(e.g.MT050B)andSerialNumberfromtheproductlabel,asyouwillbeaskedforthesewhenyoucall.Twomainlocationsarecurrentlyavailabletohelp:

FromNorthAmerica 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 email: #[email protected]

Section 5Replacement PartsGotocommscope.comeCatalogforthemostcurrentpartsavailableforyourdehydrator.http://www.commscope.com/product-catalog/#market-wireless

Overhaul KitMT050B-KIT-OVRHL

Filter Element Replacement KitMT050B-KIT-ELMNT

Filter Bowl Assemble Replacement KitMT050B-KIT-FLTRS

Filter Bowl Assemble and Dryer Tube Replacement Kit

MT050B-KIT-DRYER

Solenoid Replacement Kit MT050B-KIT-SOLND

http://www.commscope.com/Product-Catalog/#market-wireless


18

6.2 Initial Steps by COMMSCOPE

Whenyourcallorfaxcommunicationisreceived,theCOMMSCOPEstaffwillworkwithyoutopinpointthepossiblecauseoftrouble.Ifthepressurizationequipmentissuspect,theywill:

• askforyourunitModelNumberandSerialNumber

• checkthewarrantystatusoftheunit

• advisetheavailabilityofaloanerunit

• provideanestimateofthecostforinspectionandrepairs,iftheunitisout–of–warranty

• faxaReturnMaterialAuthorizationSheettoyou.

6.3 Repair Center Process

A method of Payment must be provided prior to issuing of RMA regardless of warranty status.

IN–WARRANTY REPAIR:MostCOMMSCOPEpressurizationproductscarryawarrantyofonetothreeyears,dependinguponmodelnumber.Warrantydetailsareavailableonourwebpage.Ifyourunitfallswithinitswarrantyperiod,inspectionandrepairswillbeperformedatnochargeandtheunitwillbepromptlyreturnedtoyou.Ifawarrantyunitisdeemednoproblemfoundaninspectionfeeandfreightwillbechargedtothecustomer.

OUT–OF–WARRANTY REPAIR:Wewillinformyouwiththecostofrepairandobtainyourapprovaltoproceedwithrepairsor,ifyouelectnottohavetheunitrepaired,yourinstructionsondispositionofyourunit.Whenrepairsarecomplete,wewillreturnyourunitandinvoiceyoufortheinspectioncharge,materialsusedfortherepairandlaborappliedtocompletetherepair.Ifyouelectednottorepairtheunit,wewillinvoiceyoufortheinspectionandfreightchargeifunitistobereturned.

LOANER UNITS: Loaner units are available fromtherepaircentertomaintainyoursystemwhilerepairsarebeingperformed.Ifyoufeelyou need a loaner, please contact us at one ofthenumberslistedundercontactnumbers.AP.O.forthefullvalueoftheunitmustbeissuedpriortoshipment.Alsocontactuswhentheloanerisreadytobereturnedsothatwe

canissueaNEWRMAnumbertoidentifyyourreturnandcreatetheappropriatecredittoyouraccount.DamagestoloanerwillbedeductedfromtheP.O.

PACKING INSTRUCTIONS: Pack your unit securelyforshipmenttotheRepairCenter.Ifyoureceivedaloanerunit,wesuggestyouusetheboxandpackingmaterialstoreturnyourunit.Otherwisewehavefactorypackingmaterialsavailableforanominalfee.EncloseacompletedcopyofthisforminsidetheboxandclearlymarkyourCompanyNameandRMA:XXXXXXXonoutsideofthebox.AddresstheboxtothefollowingShip–ToAddress:

COMMSCOPEPRESSURIZATIONSERVICECENTERRMA#XXXXXXX11312 S. PIPELINE RD.EULESS,TX.76040-6629

Please note, Units received with Biological/animal contamination will be returned unrepaired or scraped after notification and you will be invoiced for inspection and freight.

CONTACT NUMBERS:Ifyouhaveanyquestionsabouttherepairprocessorstatusofyourunit,pleasecontactusdirectlythroughoneofthefollowingmethods–Telephone(below)

TEL: 817-864-4150 817-864-4155

FAX: 817-864-4179

6.4 RoHS Inquiries ForinquiriesonRoHSpleasecontactthefollowing: CommScope Inc. Corke Abbey, Bray Co., Dublin, Ireland Attn: Legal Department


19

Section 7DC Inverter Option7.1 Introduction

Thestandard115Vacunitcanberunonandinverterwiththeinputof24or48Vdcinverter.Theinvertersareavailableineither24or48Vdc.Duetotheinductionofadcmotorinthecompressorpullingsomanyampsandthecostofadccompressorwechoosetopowertheunitswithaninvertertokeepthecostdownandreducetheinductionloadonyourbatterysystems.

7.2 Installing the 24 Vdc to AC inverter

Removetheinverterfromitspackagingandinstallindesiredlocation.Theinvertercanbeplacedonaflatsurfaceormountedtoawallviatheflangesandslotsonthebottomoftheinverter.

Verifypowerswitchisturnedoffontheinverter.

ConnectthepowercordfromthedehydratortotheACreceptaclelocatedontheleftsideoftheinverter.

ConnecttheDCpowertothelugslocatedontherightsideoftheinvertertothebatterysystem.Ensurethepolarityiscorrect.Improperconnection can damage inverter and void warranty.

Turninverteron.OnlygreenLED’sshouldbeilluminated.

TurnonDehydrator.


20

7.3 Installing the 48 Vdc to AC inverter

Removetheinverterfromitspackagingandinstallindesiredlocation.Theinvertercanbeplacedonaflatsurfaceormountedtoawallviatheflangesandslotsonthebottomoftheinverter.

Verifypowerswitchisturnedoffontheinverter.

ConnectthepowercordfromthedehydratortotheACreceptaclelocatedontheleftsideoftheinverter.

ConnecttheDCpowertothelugslocatedontherightsideoftheinvertertothebatterysystem.Ensurethepolarityiscorrect.Improperconnection can damage inverter and void warranty.

Turninverteron.OnlygreenLED’sshouldbeilluminated.

TurnonDehydrator.

Documents

MT050B SERIES DryLine DEHYDRATOR USER … · MT050B SERIES DryLine® DEHYDRATOR USER MANUAL 4 Section 1 General Information 1.1 Introduction This manual contains the information you