vdy direct drive blower...the horizontal blower coil units have 5/8" knockouts in each corner...

• EnergyEfficient

• EasytoInstall

• ExtendedServiceLife

HorizontalandVertical DirectDriveBlowerCoils

INSTALLATION,OPERATION,&MAINTENANCEMANUAL

- Energyefficientcompactblowercoils- Idealforeducational,hospitality,multi-family,orothercommercialenvironments- Designedforductedapplications- NominalCFMrangeof600to3,000CFM

HDY

VDY

HorizontalandVerticalDirectDriveBlowerCoilsINSTALLATION,OPERATION,&MAINTENANCEMANUAL

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Itistheresponsibilityoftheendusertoproperlycharacterizeanddisposeofallwastematerialsaccordingtoapplicableregulatoryand legalentities.Where reasonable, safe,andcompliantwithlocalregulatoryandlegalrequirements,IECencouragesrecyclingmaterialswhendisposingofitsproducts.

InternationalEnvironmentalCorporation(IEC)workscontinuallytoimproveitsproducts.Asaresult,thedesignandspecificationsofeachproductmaybechangedwithoutnoticeandmaynotbeasdescribedherein.PleasecontactIECforinformationregardingcurrentdesignandproductspecifications.StatementsandotherinformationcontainedhereinarenotexpresswarrantiesanddonotformthebasisofanybargainbetweenthepartiesbutaremerelyIEC’sopinionor commendationof itsproducts.Manufacturer’sstandardlimitedwarrantyapplies.

Horizontal and Vertical Direct Drive Blower CoilsINSTALLATION, OPERATION, & MAINTENANCE MANUAL

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15 Water Treatment

16 Electronically Commutated Motor (ECM)

SECTION FIVE — Service/Maintenance

16 General

16 Motor/Blower Assembly

16 Bipolar Ionizer Brush Cleaning

16 Coils

17 Electric Resistance Heater Assembly

17 Cabinet/Control Box Maintenance Light – HDY

17 Electrical Wiring and Controls

17 Drain

18 Filters, Throwaway

18 Filters, Replacement, Installation

21 Piping Connection Location

23 Submittal Drawings

27 Electric Heater Data

28 Motor Performance Data

29 Appendix I – Typical Wiring Diagram Examples

41 Equipment Installation and Start-Up Checklist

42 Replacement Parts

42 Factory Recommended Spare Parts List

43 Terms and Conditions

SECTION ONE — Preface

4 Introduction

4 Safety

SECTION TWO — Pre-Installation

5 Unpacking and Inspection

5 Prepare Job Site for Unit Installation

5 Identify and Prepare Units

5 Protect Units from Damage

SECTION THREE — Installation

6 Horizontal & Vertical Units (Standard)

8 Total Weight Unit Correction Factor (lb)

9 Mixing Box Installation

10 Inlet and Outlet Dampers Installation

11 Cooling/Heating Pipe Connections

11 Leak Testing

11 Refrigerant Coil Testing

11 Piping Insulation

11 Condensate Drain

11 Condensate Float Switch

12 Electrical Connections

12 Connecting Ductwork

12 Make Final Preparations

SECTION FOUR — Start-Up

13 Cooling/Heating System

13 Air Balance System

14 Control Board Adjustment

15 Water Balancing System

TableofContents


4

IntroductionInternationalEnvironmentalCorporation(IEC)fancoilunitsrepresentaprudentinvestmentofferingtrouble-freeoperationandlongservicewithproperinstallation,operation,andregularmaintenance.Theequipmentcoveredbythismanualisavailablewithavarietyofoptionsandaccessories.Alwaysconsulttheapprovedunitsubmittals,orderacknowledgement,andothermanualsforspecificdetailsonunitoptionsandaccessories.Alwaysfollowproperproceduresrelatedtosafety,handling,installation,operation,andservicingofmechanicalequipmentasthemanufacturerassumesnoresponsibilityforpersonalinjuryorpropertydamageresultingfromimproperorunsafepracticesduringthehandling,installation,service,oroperationofanyequipment.

SafetyIECequipmentisinitiallyprotectedunderthemanufacturer’sstandardwarranty;however,thiswarrantyisprovidedundertheconditionthatthestepsoutlinedinthismanualforinitialinspection,properinstallation,commissioning,regularperiodicmaintenance,andeverydayoperationoftheequipmentbefollowedindetail.Thismanualshouldbefullyreviewedandunderstoodinadvanceofinitialinstallation,startup,andanymaintenance.Shouldanyquestionsarise,pleasecontactyourlocalSalesRepresentativeorthefactoryBEFOREproceeding.

WARNING: NO ATTEMPT SHOULD BE MADE TO HANDLE, INSTALL, OR SERVICE ANY UNIT WITHOUT FOLLOWING SAFE PRACTICES REGARDING MECHANICAL EQUIPMENT.

Alwaysuseproperequipmentsupport.Secureallpre-installationsupports.

CAUTION: Disconnect all power prior to any installation or service (unit may use more than

one power source; ensure all are disconnected) Power to remote mounted control devices may not be supplied by unit.

InstallapprovedLock-Out/Tag-OutprotectiondevicesonALLincomingpowersourcestoequipmentbeing installed

SECTIONONE—Prefaceorservicedpriortobeginninganywork.Alwaysverifyallincomingpowersourcesarede-energizedusinganelectricalmulti-meter.

CAUTION: Never wear bulky or loose fitting clothing when working on any mechanical

equipment. Gloves should always be worn for protection against sharp sheet metal edges, heat, and other possible injuries. Safety glasses or goggles should always be worn, especially when drilling, cutting, or working with refrigerants, lubricants or cleaning chemicals.

WARNING: Never pressurize any equipment beyond specified test pressures listed on the unit rating plate. Always pressure test with an inert fluid or gas such as clear water or dry nitrogen to avoid possible damage or injury in the event of a leak or component failure during testing.

CAUTION: Always protect adjacent flammable material when welding or soldering. Use a

suitable heat shield material to contain sparks or drops of solder. Have a fire extinguisher readily available.

CAUTION: Always protect chilled and hot water valve bodies, strainers, ball valves, and

other flow control related devices from heat caused by soldering or brazing processes.

Safetyshouldalwaysbefirstprioritywhenhandling,installing,operatingorservicingmechanicalequipment.Alwaysfollowallsafetycodes,proceduresandprotocols.ConsultapplicablelocalbuildingcodesandNationalElectricalCodes(NEC)forspecialrequirements.Bealerttosafetyinformation:symbols,wordssuchasDANGER,WARNINGandCAUTION.

Improperinstallation,adjustment,service,maintenance,orusecancauseexplosion,fire,electricalshock,orotherconditions,whichmayresultinpersonalinjuryorpropertydamage.Thisproductmustbeinstalledonlybypersonnelwiththetraining,experience,skills,andapplicablelicensingthatmakeshim/her“aqualifiedprofessionalHVACRinstaller”.


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SECTIONTWO—Pre-InstallationUnpacking and InspectionAllunitsarecarefullyinspectedatthefactorythroughoutthemanufacturingprocessunderastrictdetailedqualityassuranceprogram.Allmajorcomponentsandsub-assembliesarecarefullytestedforproperoperationandverifiedforfullcompliancewithfactorystandards.Operationaltestingofsomecustomer-furnishedcomponentssuchasDDCcontrols,pneumaticcontrolvalvesandswitchesmaybeapossibleexception.

Eachunitiscarefullypackagedforshipmenttopreventdamageduringnormaltransitandhandling.Equipmentshouldalwaysbestoredinadryandcoveredplace,andinproperorientationmarkedonthecarton.

AllshipmentsaremadeF.O.B.ex-factoryanditistheresponsibilityofthereceivingpartytoinspecttheequipmentuponarrival.Anyobviousdamagetothepackagingand/oritscontentsshouldberecordedonthebillofladingandaclaimfiledwiththefreightcarrier.

Afterinspectingconditionofpackagingexterior,carefullyremoveeachunitfromthecartonandinspectforhiddendamage.Anyhiddendamageormissingcomponentsshouldberecordedandimmediatelyreportedtothecarrierandaclaimfiled.Intheeventaclaimforshippingdamageisfiled,theunit,shippingcarton,andallpackingmustberetainedforphysicalinspectionbythefreightcarrier.Allequipmentmustbestoredinthefactoryshippingcartonwithinternalpackinginplaceuntilinstallation.

Attimeofreceipt,equipmenttypeandarrangementmustbeverifiedbyreviewoforderdocuments.Shouldanydiscrepancybefound,thelocalSalesRepresentativemustbenotifiedimmediatelysothatproperactionmaybetaken.

Shouldanyquestionsariseconcerningfieldwarrantyrepairs,factorymustbenotifiedBEFOREanycorrectiveactionistaken.

Whenrepairsoralterationscanbeaccomplishedlocally,thefactorymustbefullyinformedoftheextentandexpectedcostofrepairsbeforeworkbegins.Whenfactoryoperationsarerequired,thefactorymustbe

contactedforauthorizationtoreturnequipmentandaReturnAuthorizationNumberwillbeissued.

Unauthorizedreturnshipmentsofequipmentandshipmentsnotmarkedwithanauthorizationnumberwillberefused.Inaddition,anyclaimsforunauthorizedexpenseswillnotbeacceptedbythemanufacturer.

Prepare Job Site for Unit InstallationTosavetimeandtoreducethepossibilityofcostlyerrors,setupacompletesampleinstallationinatypicalroomatthejobsite.Checkallthecriticaldimensionssuchasfieldpiping,wiring,andductconnectiontoensuretheyagreewithjobrequirements.Refertojobdrawingsandproductdimensiondrawingsasrequired(SeeFigures23-26forsampledrawings).Instructalltradesintheirpartoftheinstallation.Shouldanydiscrepanciesbediscovered,contactyourlocalrepresentativebeforecontinuingwithunitinstallations.

Identify and Prepare UnitsForeachunit,confirmincomingandcontrolpowerrequirementsmatchavailablepowersource.Refertounitnameplateandwiringdiagram.

1. Reviewalltagsonunittodetermineifshippingscrewsaretoberemoved.Removescrewsasdirected.

2. Rotatefanwheelbyhandtoensurethatfanisunrestrictedandcanrotatefreely.Inspectforshippingdamageandfanobstructions.Adjustblowerwheelasrequired.

Protect Units from DamageCaremustbetakentoassurethatnoforceorpressureisappliedtothecoil,pipingordrainstub-outsduringhandling.TheequipmentcoveredinthismanualISNOTsuitableforoutdoorinstallations.Theequipmentisnevertobestoredorinstalledwhereitmaybesubjectedtoahostileenvironmentsuchasrain,snow,orextremetemperatures.

Before,during,andafterinstallation,takespecificcautiontopreventforeignmaterialsuchaspaint,plaster,and


6

SECTIONTHREE—Installationdrywalldustfrombeingdepositedinthedrainpan,onthemotororblowerwheelsandcooling/heatingcoils.Failuretodosomayhaveseriousadverseeffectsonunitoperation,andinthecaseofmotorandblowerassembly,mayresultinimmediateorprematurefailureandvoidingallmanufacturers’warranties.Someunitsand/orjobconditionsmayrequiresomeformoftemporarycoveringduringconstruction.Whilethemanufacturerisnotinvolvedinthedesignandselectionofsupportmethodsandcomponents,itshallbenotedthatunacceptablesystemoperatingcharacteristicsand/orperformancemayresultfromimproperorinadequateunitstructuralsupport.Aftermounting,theunitisthenreadyfortheserviceconnectionssuchaswater,drainandelectrical.Verifywhichpropertypeofservicesareactuallyprovidedtotheunit.Onunitsrequiringchilledwaterand/orhotwater,verifyproperlinesizeandwatersupplyavailability.

SECTION3–InstallationHorizontal & Vertical Units (Standard)Place Units In Position.

Installmixingboxwhenorderedwithunit.Followmixingboxinstallationinstructionsoutlinedinthenextsection.Thehorizontalblowercoilunitshave5/8"knockoutsineachcornerofthetopandbottompanelsfor1/2"

allthread(notsuppliedwithunit)topassthrough(seeFigure3).Alwayssupporttheunitatthebaseuntilmountingiscomplete.

Sufficientclearancemustbekeptforserviceandmaintenance.Minimumrecommendedclearanceformaintenanceofthemotorandblowerwheelis29"ontheaccesssideoftheunit.Filterscanberemovedfrombothsidesandthebottom(HDY)ortop(VDY)ofthefilterframe.Ifsideaccesstothefilterisdesired,theminimumclearancerequiredisthewidthofthefilterrackplus6".

Aminimumof48"clearanceisrequiredbetweenfactorysuppliedelectricheaterandanycombustiblematerials.(SeeFigures1and2foradditionalclearancesinformation).

Fordrainpanremoval,therecommendedclearanceshouldbenolessthanthewidthoftheunit.

Theunitmustbemountedlevel.DONOTmounttheunitonaslope.Thedrainpanhasabuilt-inslopetoensureproperdrainage.Mountingtheunitonaslopemayresultinimproperdrainage.Field-furnishedandinstalledaccessoriessuchasductwork,mixingboxes,economizers,dampers,etc.mustbeindependentlysupportedorsuspendedandmustnotrelyontheunit

Minimum recommended clearance

Minimum recommended clearance

Electric Heat Controls

AIRFLOWAIRFLOW

Filter

Drain Pan

Electric Heat Elements

29 in.

Minimum recommended clearance 29 in.

29 in.Fan Motor Piping Package

Fan

Figure 1. HDY Unit installation – recommended clearances (top view)

AIRFLOW

29 IN.MINIMUM RECOMMENED

CLEARANCE

29 IN.MINIMUM RECOMMENED

CLEARANCE 29 IN.MINIMUM RECOMMENED

CLEARANCE

FILTER

PIPING PACKAGE

(†)

(†)

(†)

Fordrainpanorcoilremoval,therecommendedclearanceshouldbenolessthanthewidthoftheunitplusconnections.

Figure 2. VDY Unit installation – recommended clearances (top view)


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SECTIONTHREE—Installation,Cont’d.

HDY UnitNo Electric Heat (lb.) With Electric Heat (lb.)

A B C D Total A B C D Total06 42 46 36 47 171 42 58 36 66 20208 41 47 38 45 171 41 58 36 67 20210 51 53 49 63 217 51 60 56 83 25012 50 52 51 64 217 50 58 57 85 25016 65 70 64 75 274 70 69 66 104 30920 78 90 77 95 340 81 96 77 107 37822 83 105 80 99 367 86 111 81 111 38930 103 113 97 117 430 104 120 96 149 469

Table 1. HDY Operating weight/Distributed weight values

Figure 3. HDY Threaded rod suspension

Isolators - 4 per unit (�eld furnished and installed)

Washer and Double Nut (�eld furnished and installed)

5/8” knockouts forsuspension rods (4 places top and 4 places bottom of unit)

Threaded Rod Suspension (�eld

furnished and installed)

Trapeze - Recommended on unit size 30

Figure 4. HDY Mounting details - threaded rod suspension

Washer

Double Nuts

Trapeze

Bolt

Figure 5. HDY Distributed weight calculations

Thefollowingoperatingweightinformationisbasedon8-rowwater-filledcoilsanddoublewallcabinetconstruction.Foradifferentcoilandcabinetoption,usetheweightcorrectionfactortable.


8

SECTIONTHREE—Installation,Cont’d.

CD

AB B

DC

A

LH COIL RH COIL

Figure 6. VDY Distributed Weight Calculations

NOTE: Someunitcomponentsareremovedforclarity.

Table 2. VDY Operating weight/Distributed weight values

VDY UnitNo Electric Heat (lb.) With Electric Heat (lb.)

A B C D Total A B C D Total06 76 38 35 42 191 85 40 44 49 21808 85 39 37 38 199 94 48 44 47 23410 78 45 44 78 245 86 58 55 84 28312 84 45 46 80 255 97 62 58 92 30916 85 74 62 82 306 105 79 70 92 34620 90 84 77 88 339 111 88 81 99 37922 110 90 73 90 363 133 88 92 99 41230 147 140 113 128 528 160 140 131 137 568

NOTE: 1. Unitweights(showninpounds),+/-10percent,arebasedonthelargestwater-filledcoil. 2. Theoperatingweightinformationisbasedon8-rowwaterfilledcoilsanddoublewallcabinetconstruction.Fordifferentcoilandcabinetoptions,usetheweightadjustmenttable

(Table2).

Total Weight Unit Correction Factor (lb.)Theweightsarefor8-rowwater-filledcoilsanddoublewallconstruction.Foradifferentnumberofrows,totalunitweightcanbedeterminedby:

Totalunitweightcanbeadjustedby:

a. Identifythesizeofunitandnumberofrows

b. Fromtheprevioustable,identifythetotalweightoftheunit

c. Fromthetablebelow,identifythecorrectionfactoranddeductthisfactorfromthetotalweight.

Table 3. Total unit weight adjustment – HDY and VDYOptions 6 8 10 12 16 20 30

4-RowCoil -21 -21 -28 -28 -39 -46 -98

5-RowCoil -16 -16 -21 -21 -29 -35 -74

6-RowCoil -11 -11 -14 -14 -20 -23 -49

7-RowCoil -5 -5 -7 -7 -10 -12 -25SingleWallConstruction

-31 -31 -40 -40 -47 -58 -67

NOTE: 1. Unitweights(showninpounds),+/-10percent,arebasedonthelargestwater-filledcoil.


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SECTIONTHREE—Installation,Cont’d.Mixing Box Installation1. Mixingboxesarepre-assembledfromthefactory

foreaseofinstallation.Alinkagekitconsistingoftwocrankarms,2swivels,andeithera25"(sizes06-16)ora34"(sizes20-30)lengthof5/16"rodisprovidedforfieldinstallationofanactuator.

Figure 7. Base rails

2. Assemblethebaserails(providedwithmixingbox).Allhardwarerequiredforassemblyisincludedandthebaserailsarelettercodedforeaseofassembly(asshowninFigure8).

Figure 8. Letter coding on base rail parts

3. Placeunitonthebaserails.Theninstallmixingboxandattachtobaserailusingthe#8x1/2"fasteners(HDY)or#12x3/4”fasteners(VDY)atthelocationsshowninFigures9and10.

4. Sealtheconnectionbetweenthemixingboxandthereturnductflange.Becarefulnottotapeorsealthefilteraccesspanel.Forunitswith4”filters,themixingboxwillover-hangtheendbaserailby2”.

Figure 9. Horizontal units with mixing box option

SEE DETAIL A

SEE DETAIL B

DETAIL A DETAIL B

MOUNTINGLOCATION

MOUNTINGLOCATION

Figure 10. VDY mixing box installation

SEE DETAIL A

DETAIL A


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5. InstallSwivelstoCrankArms,handtighten.

Figure 12. Install swivels

SEE DETAIL A

DETAIL A

6. Insert5/16”damperrodthroughmountingholeofeachswivel,asshowinFigure12.Positionshafttoensurethereisnotinterferenceatanypointduringtravel.Tightenrodclampofswivelontoeachdamperrod.

Figure 13. Install damper

7. Confirmcorrectoperationofdampers.Adjustasneeded.Tightenremainingfasteners.

SECTIONTHREE—Installation,Cont’d.Inlet and Outlet Dampers Installation1. Installactuatorpermanufacter’sinstructions.

2. Adjustdampershaftsoutwardtoextendpastanyobstaclesthatmightcauseinterference.Donotadjustinwardendofshaftwithinadistanceof2inchofbronzebushing.

3. Positioninletdamperandoutletdampertocoincidewithcurrentorintentedpositionofactuatorarm,dependingonactuator’sposition(opened/closed).Noterotationdirectionofeachdamper.

4. Installcrankarmstoeachdampershaftapproximatelyparalleltoeachotherwhilemaintainingstate/positionofdampers,asshowinFigure11.Checkforrangeofmotionclearancesbeforetightening.

Figure 11. Install crank


11

SECTIONTHREE—Installation,Cont’d.Cooling/Heating Pipe Connections

CAUTION: Residue and loose particles resulting from manufacturing and field piping techniques

such as joint compounds, soldering flux, and metal shavings may be present in the unit and the piping system. Ensure system cleanliness when connecting to solar, domestic or potable water systems.

Thoroughlyreviewsubmittalsandproductliteraturedetailingunitoperation,controls,andconnectionsBEFOREbeginningtheconnectionofthevariouscoolingand/orheatingmediumstotheunit.Thesupplyandreturnconnectionsaremarkedwitha“HS/CS”meaningHot/ColdwaterSupplyorinletand“HR/CR”meaningHot/ColdwaterReturnoroutletindicatingfluidflowdirectionintoandfromthecoil.RefertoFigures21and22fordetailsandDXcoilsmarkingandpipinglocations.

Leak TestingAftersecuringtheconnections,testthesystemforanyleaks.Alwaystesthydronicsystemswithwaterassomecomponentsarenotdesignedtobeinertgaspressurized.

Fieldpressuretestingforleaksshouldnotexceed300psiforhydroniccoilandvalvepackagecomponents.Consultfactoryifhigherlimitsarerequired.

CAUTION: Protect all water coils from freezing after initial filling with water. Even if the system

is drained, unit coils may still hold enough water to cause damage when exposed to temperatures below freezing.

Refrigerant Coil TestingTestrefrigerantsystemswithdrynitrogenratherthanairtopreventtheintroductionofmoistureintothesystem.Intheeventthatleakingordefectivecomponentsarediscovered,notifytheSalesRepresentativeBEFOREanyrepairsareattempted.Allleaksmustberepairedbeforeproceedingwiththeinstallation.InDXsystems,adequatefreezeprotectionshouldbefield-installed.

Piping InsulationAftersystemintegrityhasbeenestablished,insulatethepipinginaccordancewiththeprojectspecifications.Thisistheresponsibilityoftheinstallingorinsulationcontractor.

Condensate DrainAnyfancoilunitwithadrainpanisrecommendedtobeequippedwithadraintraptoprovidecondensatedrainageandpreventpropertydamage.

ThedrainU-trapshouldbedeepenoughtooffsetmaximumunitstaticpressuredifferenceasshownatFigure14,topreventcondensateflowingbacktodrainpan.

Figure 14. Condensate drain U-trap

reconnection, flooding of the

Condensate Float switchThecondensatefloatswitchisusedtodetectcloggedorrestrictedcondensatepandrains.ThecondensateswitchusesaNormallyClosedcontacttoallowthesystemcontrolpowertopassthroughtheswitchenergizingthewatervalvesandfansallowingnormaloperation.Whenanoverflowconditionisdetectedbytheswitch,itopenstheNCcontactsandde-energizesthewatervalvesandfans.

NOTE: All field wiring must be in accordance with governing codes and ordinances. Any modification of unit wiring without factory authorization will invalidate all factory warranties and nullify any agency listings. The manufacturer assumes no responsibility for any damages and/or injuries resulting from improper field installation and/or wiring.


12

SECTIONTHREE—Installation,Cont’d.Flexibleductconnectionsshouldbeusedonallairhandlingequipment.Allductworkandinsulationshallbeinstalledtoallowproperaccesstoallcomponentsforserviceandrepairsuchasfilters,motor/blowerassemblies,etc.

Make Final Preparations1 Powerunit(s)off(openunitelectricaldisconnect)

andinstalllockouttagsonallpowersuppliestotheunit.

2. Installfield-suppliedthermostatsandperformallotherfinalwiringneeded.Ensureallelectricalconnectionsaresecure.

3. Performfinalvisualinspection.Allequipment,ductwork,andpipingshouldbeinspectedtoverifyallsystemsarecompleteandproperlyinstalledandmounted,andthatnodebrisorforeignarticlesareleftintheunit(s).Cleandirt,dust,andotherconstructiondebrisfromunitinterior.Assessfanwheelandhousingandcleanifnecessary.

4. Verifydrainlineisproperlyandsecurelypositionedandthatthelineisclear.Pourwaterintodraintoverifyoperation.

5. Rotatefanwheelbyhandtobesureitisfreeanddoesnotrubhousing.

6. Installthefilterintothefilterframe.Iffield-suppliedfiltersareused,verifyfiltersize(seeTable5).

7. Ensureallpanelsandfiltersareinstalledbeforecheckingfanoperation.Turnonpowertotheunit.

8. Inspectthefanandmotoroperation.

Electrical ConnectionsTheunitserialplateliststheunitelectricalcharacteristicsincludingtherequiredsupplyvoltage,fanandheateramperageandrequiredcircuitampacity.Theunitwiringdiagramdisplaysallunitandfieldwiring.Everyprojectisdifferentandeachunitonaprojectmaybedifferent,theinstallermustbefamiliarwiththewiringdiagramandserialplateontheunitBEFOREbeginninganywiring.

Ensureallfieldelectricalconnectionsareinaccordancewithunitwiringdiagramandallapplicablenationalandlocalcode.Thetypeandsizeofallwiringandotherelectricalcomponentsincludingcircuitbreakers,disconnectswitches,etc.shallbedeterminedbytheindividualjobrequirements.Verifyconductorsizeissuitableforthedistancetotheequipmentconnectionandwillsupporttheequipmentelectricalload.Allinstallationsincludingfieldwiringshallbemadeincompliancewithallgoverningcodesandordinances.Compliancewithallcodesistheresponsibilityoftheinstallingcontractor.

Allcomponentsfurnishedforfieldinstallationbyeitherthefactoryorthecontrolscontractorshallbelocatedandcheckedforproperfunctionandcompatibility.Inspectallinternalcomponentsforshippingdamage.Inspectallelectricalconnectionswithintheunitcontrolboxandaccessoriesandtightenifnecessary.

Connecting DuctworkAllductworkshallbeinstalledinaccordancewiththeprojectplansandspecifications.SeeFigures23-26forsupplyandreturnductflangeslocationanddimensions

NOTE: When installing units that attach to branch duct piping, use industry approved duct standards and configuration such as those published by Air Conditioning Contractors of America or American Society of Heating, Refrigeration and Air Conditioning Engineers. The standards provide necessary information on sizing, layout and installing supply and return air duct systems.


13

SECTIONFOUR—Start-UpSECTION4–Start-UpBeforebeginninganystartupoperation,thestartuppersonnelshallfamiliarizethemselveswiththeunit,optionsandaccessories,andcontrolsequencetounderstandthepropersystemoperation.Allpersonnelshallhaveagoodworkingknowledgeofgeneralstartupproceduresandhavetheappropriatestartupandbalancingguidesavailableforconsultation.

Thebuildingmustbecompletelyfinishedincludingdoors,windows,andinsulation.Allinternalwallsanddoorsshouldbeinstalled.Insomecases,theinteriordecorationsandfurnituremayinfluenceoverallsystemperformance.Theentirebuildingshouldbeascompleteaspossiblebeforebeginninganysystembalancing.

Cooling/Heating SystemPriortothewatersystemstartupandbalancing,flushthechilled/hotwatersystemstocleanoutdirtanddebriswhichmayhavecollectedinthepipingduringconstruction.Duringthisprocedure,allunitservicevalvesmustbeintheclosedpositiontopreventforeignmatterfromenteringtheunitandcloggingthevalvesandmeteringdevices.Strainersshallbeinstalledinthepipingmainstopreventsuchmaterialfromenteringunitsduringnormaloperation.

Duringsystemfilling,airventingfromtheunitisaccomplishedbytheuseofthestandard,manualairventfitting,ortheoptional,automaticairventfittinginstalledonthecoil(Figure15).Manualairventsarebasicschradervalvesthatcouldbeaccessedfromthecoilsideoftheunitandarelocatedbetweenthecoilheaderandendsheet.Toventtheairfromthecoil,depressthevalveuntiltheairhasventedthecoil.Whenwaterbeginstoescapethroughthevalve,releasethevalve.

Automaticairventsmaybeunscrewedoneturncounterclockwisetospeedinitialventing,butshouldbescrewedinforautomaticventingafterstartupoperations.

Figure 15. Air vents

Manual Air Vent

Automatic Air Vent

CAUTION: The air vent provided on the unit is not intended to replace the main system air

vents and may not release air trapped in other parts of the system. Independently inspect the entire system for potential air traps and vent those areas as required. In addition, some systems may require repeated venting over a period of time to properly eliminate air from the system.

Air Balance SystemAllductworkmustbecompleteandconnected.AllfiltersandaccessdoorsandpanelsmustbeproperlyinstalledtoestablishactualsystemoperatingconditionsBEFOREbeginningairbalancingoperations.

Eachindividualunitandtheattachedductworkisauniquesystemwithitsownoperatingcharacteristics.Forthisreason,airbalancingisnormallydonebybalancespecialistswhoarefamiliarwithallproceduresrequiredtoproperlyestablishairdistributionandfan-systemoperatingconditions.Theseproceduresshallnotbeattemptedbyunqualifiedpersonnel.

Afterpropersystemoperationisestablished,theactualunitairdeliveryandtheactualfanmotoramperagedrawforeachunitshouldberecordedinaconvenientplaceforfuturereference.


14

SECTIONFOUR—Start-Up,Cont’d.Control Board Adjustment.AdjustingtheLow,MediumandHighpotentiometerrequirestheuseofMulti-metercapableofmeasuring0~10VDC.

CAUTION: Only trained and qualified individuals should attempt to adjust or service components

on any energized electrical equipment. Failure to follow established safety rules and guidelines could result in serious injury or death.

Figure 16. Motor Control Board

PotentiometerLow, Med, High CFM adjust

Whenunitisshippedfromthefactorywithmotorcontrolboard(whichhasHi,MedandLowairflowsettings),itispre-programmedatthefactoryto“High”speedanddeliverstheairflowandcooling/heatingcapacityspecifiedatthetimeoforder,whileMediumandLowSpeedsaresettodefaultsbasedonHighspeed.Shouldairflowrequireadjustmentafterinstallation,thecontrolboardsettingsforLow,MediumandHighcouldbeadjustedbyturningscrews(asshowninthepicture)usingasmallPhillipsScrewdriver.Itwilladjustthecontrolvoltagetothemotor.Aclockwiserotationincreasesthevoltagetothemotor,whilecounterclockwiserotationreducesit.

CAUTION: On units with Electric Heat – the factory default setting for Low airflow prevents

nuisance tripping of the Electric Heat protection circuit. Turning the Low Speed screw counter clockwise can cause interruptions in the Heating performance of the unit due to the activation of this protective circuit.

WhenunitisorderedwithProportionalControl,IECRatingsProgramwillidentifytheHighandLowspeedcontrolvoltagerangeinwhichtoprogramtheThermostat/Controller.

Figure 17. Control box layout

Above is the example of Control box for Size 20 unit with electric heat, disconnect switch and service light.

(HDY)


15

SECTIONFOUR—Start-Up,Cont’d.CAUTION: Turning the voltage up past the setting for High Speed may introduce the risk

of condensate blow off.

Unitmustbepoweredtoperformthefollowingprocedure.

SettheelectricalmultimetertoVDC(VoltsDirectCurrent).

AttachtheREDpositive(+)leadofthemetertotheDCOUTPUTS.LOW,MED&HIGHaretypicallyconnectedtogether.

1. CloseeithertheLOW,MED&HIGHspeedrelaycontactsbyapplying24VACtothecorrespondingLOW,MEDorHIGH24VACINPUTandCOM.

2. MeasurevoltageattheDCOUTPUTSandadjustthepotentiometerforthatspeed.(VR1LOW,VR2MED,VR3HIGH)

3. InordertoachievehigherCFM,turnthepotentiometerClock-Wise.

NOTE: For specific voltages adjustment please contact IEC factory representative.

Water Balancing SystemAcompleteknowledgeofthehydronicsystem,alongwithitscomponentsandcontrols,isessentialtoproperwatersystembalancing.Thisprocedureshallnotbeattemptedbyunqualifiedpersonnel.Thesystemmustbecomplete,andallcomponentsmustbeinoperatingconditionBEFOREbeginningwatersystembalancingoperations.

Eachhydronicsystemhasdifferentoperatingcharacteristicsdependingonthedevicesandcontrolsusedinthesystem.Theactualbalancingtechniquemayvaryfromonesystemtoanother.

Afterthepropersystemoperationisestablished,recordtheappropriatesystemoperatingconditionssuchasvariouswatertemperaturesandflowratesinaconvenientplaceforfuturereference.

Before,andduringwatersystembalancing,conditionsmayexistduetoincorrectsystempressureswhichmayresultinnoticeablewaternoiseorundesirablevalveoperation.Aftertheentiresystemisbalanced,theseconditionswillnotexistonproperlydesignedsystems.

Water TreatmentProperwatertreatmentisaspecializedindustry.IECtherecommendsconsultingaWaterTreatmentExperttoanalyzewaterforcompliancewithwaterqualityparameterslistedbelow,andtorecommendanappropriatewatertreatmentregimen.WaterTreatmentExpertsareabletorecommendtypicaladditivessuchasrustinhibitors,scalingpreventative,antimicrobialgrowthagents,oralgaepreventatives.Anti-freezesolutionsmayalsobeusedtolowerthefreezingpoint.

IECwatercoiltubesandheadersareconstructedofcopper.Multiplebrassalloysmaybepresentinthevalvepackage.Itistheuser’sresponsibilitytoensuretubeandpipingmaterialsfurnishedbyIEC,arecompatiblewithtreatedwater.SeeTable4.

Failuretoprovideproperwaterqualitymayaffectthefancoilunits’warranty.

Table 4. Water quality parameters

Water Containing Required ConcentrationSulphate Lessthan200ppm

pH 7.0–8.5

Chlorides Lessthan200ppm

Nitrate Lessthan100ppm

Iron Lessthan4.5mg/l

Ammonia Lessthan2.0mg/l

Manganese Lessthan0.1mg/l

DissolvedSolids Lessthan1000mg/l

CaCO3Hardness 300-500ppm

CaCO3Alkalinity 300-500ppm

ParticulateQuantity Lessthan10ppm

ParticulateSize 800micronmax


16

SECTIONFIVE—Service/MaintenanceElectronically Commutated Motor (ECM)AllHDYunitsareequippedwithElectronicallyCommutatedMotors(ECM)-constantspeedbrushlessDC,whichareeasilyadjustableinthefieldfordesiredperformance.Motorsarepre-programmedforconstantspeedmode.

1/2HPand1HPmotorshaveintegratedcontrolmodulewithoverloadandshortcircuitprotection.

1-1/2HPand3HPmotorshaveremotemountedcontrolmodulewithoverloadandshortcircuitprotection.Controlmoduleismountedinthecabinetinterior.

SECTION5–Service/MaintenanceGeneralEachunithasanindividualoperatingenvironmentandconditionsthatdictatethemaintenancescheduleforeachunit.Aformalscheduleofregularmaintenanceandanindividualunitlogshouldbeestablishedandmaintained.Thiswillachievemaximumperformanceandpreservetheservicelifeofeachunit.

Observeandadheretoallsafetyprecautionscontainedintheprefaceofthismanualduringallserviceandmaintenanceoperations.

FormoredetailedinformationofserviceoperationsconsultanIECSalesRepresentativeorthefactory.

Motor/Blower AssemblyFanoperationtypeisdeterminedbythecontrolcomponentsandtheirmethodofwiring.Thismayvaryfromunittounit.Refertothewiringdiagramattachedtoeachunitforindividualoperatingcharacteristics.

Allmotorshavepermanentlylubricatedballbearings.Nofieldlubricationisrequired.

Shouldthemotor/blowerassemblyrequireservice,itmayberemovedfromunittofacilitateoperationssuchasmotororblowerwheel/housingreplacement,etc.

Dirtanddustmustnotbeallowedtoaccumulateonblowerwheelorhousing.Thiscanresultinanunbalancedblowerwheelconditionwhichwilldamageablowerwheelormotor.Thewheelandhousingmustbecleaned

periodicallyusingavacuumcleanerandabrushtakingcarenottodislodgefactorybalancingweightsontheblowerwheelblades.

Bipolar Ionizer Brush CleaningThebipolarionizerisdesignedtonotrequirereplacementsparts.

Thebrushesonthedevicemaybecomedirtyovertimeandwillrequirecleaningtomaintaintheeffectivenessofionoutput.Cleaningofbipolarionizerbrushesandinspectionofdeviceshouldbeperformedattimeofeachfilterchangeorsooner,basedonthelocation,filtereffectivenessandgeneralenvironment.

1. Tocleanthebrushes,turnoffpowertotheunit.NOTE: When power is OFF, the green LED indicator on the device will not be illuminated.

2. Usingasmallnylonbrush,gentlywipeoffthetwobrushes.SeeFigure18forbrushlocation.

3. Aftercleaning,restorepower.

ItisstronglyrecommendedthebipolarionizerbepairedwithaPleatedMERV8filterformosteffectiveindoorairqualityresults.

Figure 18.

FRONT VIEW

IONIZATIONBRUSH

LEDINDICATOR

LIGHT

CoilsCoilsshouldbecleanedbyremovingthemotor/blowerassembliesandbrushingtheenteringairfacebetweenfinswithastiffbrush.Brushingshouldbefollowedbycleaningwithavacuumcleaner.Ifacompressedairsource


17

SECTIONFIVE—Service/Maintenance,Cont’d.isavailable,thecoilmayalsobecleanedbyblowingairthroughthecoilfinsfromtheleavingairface.Thisshouldagainbefollowedbyvacuuming.Unitsequippedwithregularlyreplacedairfilterswillrequirelessfrequentcoilcleaning.

Electric Resistance Heater AssemblyElectricresistanceheaterstypicallyrequirenoscheduledmaintenancewhenunitairfiltersarechangedproperly.Theoperationandservicelifemaybeaffectedbyotherconditionsandequipmentinthesystem.Thetwomostimportantoperatingconditionsforanelectricheaterareproperairflowandpropersupplyvoltage.Highsupplyvoltageand/orpoorlydistributedorinsufficientairflowovertheelementwillresultinelementoverheatingandpossiblelimitswitchopenings.

Thisconditionmayresultintheheatercyclingonthehighlimitthermalcutout.Open-stripheatershaveanautomaticresetswitchandhigh-limitthermalswitchasabackup.Automaticresetlimitswitches,resetafterheaterhascooleddown.

High-limitthermalswitchesmustbereplacedoncethecircuithasbeenbroken.Thehigh-limitthermalcutoutdeviceisasafetydeviceonly,notintendedforcontinuousoperation.Thisdeviceonlyoperateswhenaproblemexists,ANYconditionthatcauseshigh-limitcutoutMUSTbecorrectedimmediately.Highsupplyvoltagealsocausesexcessiveamperagedraw,andmaytripthecircuitbreakerorblowthefuse(s)onincomingpowersupply.

Afterproperairflowandsupplypowerareassured,regularfiltermaintenanceisimportanttoprovidecleanairovertheheater.Dirtallowedtodepositontheheatingelementwillcausehotspotsandeventualelementburnthrough.Thesehotspotswillnormallynotbeenoughtotripthehigh-limitthermalcut-outdevice,andmaynotbeevidentuntilactualheaterelementfailure.

Cabinet/Control Box Maintenance Light – HDYOptionalLEDServiceLightprovidesasourceofilluminationinthemainunitcabinetandthecontrolboxduringroutinemaintenanceandtroubleshootinginthedarkceilingspaces.

Whenpoweristurned“OFF”formaintenanceortroubleshooting,ControlBox/CabinetLightwillturn“ON”assoonascontrolbox/cabinetdoorisopen(SeeFigure17).

Electrical Wiring and ControlsRefertowiringdiagramattachedtounitfortypeandnumberofcontrolsprovidedoneachunit.

Verifyintegrityofallelectricalconnectionsatleasttwiceduringthefirstyearofoperation.Subsequently,allcontrolsmustbeinspectedperiodicallyforproperoperation.Somecomponentsmayexperienceerraticoperationorfailureduetoage.Wallthermostatsmayalsobecomecloggedwithdustandlint,andmustbeperiodicallyinspectedandcleanedtoprovidereliableoperation.

Whenreplacinganycomponentssuchasfusesorrelays,useonlytheexacttype,sizeandvoltagecomponentasfurnishedfromthefactory.Anydeviationwithoutfactoryauthorizationcouldresultinpersonnelinjuryordamagetotheunit.Thiswillalsovoidallfactorywarranties.Only factory supplied replacement parts ensure that the warranty and agency status remain in effect.Allrepairworkshallbedoneinsuchamannerastomaintaintheequipmentincompliancewithgoverningcodes,ordinancesandtestingagencylistings.

DrainInspectdrainbeforeinitialstartup,andpriortoeachcoolingseasontoassurethatdraintrapandlineareclear.Whenclogged,clearthedebrissocondensateeasilyflows.

Periodicallyinspectdrainduringcoolingseasontomaintainafree-flowingcondensate.Unitsareprovidedwithasecondaryor“tell-tale”drainconnectionthatwillindicateacloggedmain-drainlinebyflowfrom“tell-tale”connection.

Shouldalgaeand/orbacteriagrowthbecomeaconcern,consultanairconditioningandrefrigerationsupplyorganizationfamiliarwithlocalconditionsforchemicals,orothersolutionsavailabletocontroltheseagents.


18

SECTIONFIVE—Service/Maintenance,Cont’d.Filters, ThrowawayThrowawaytypefilters;commonlyusedonfancoilunitsmustbereplacedonaregularbasis.Thetimebetweenreplacementshouldbeestablishedbasedonregularinspectionoffilter,andalsorecordedinthelogforeachunit.RefertoTable5forappropriatefilterdimensionscompatiblewitheachunitsize.Ifreplacementfiltersarenotpurchasedfromfactory,filtersusedshouldbethesametypeandsizeasfactory,orrecommendedbyfactory.Extendedsurfacefiltersmustnotbeusedduetohighairpressuredropsencounteredwiththesetypesoffiltersbeingincompatiblewiththetypeoffancoilunitcoveredinthismanual.Consultfactoryforapplicationsusingfiltertypesotherthanfactorystandardoroptionalproduct.

Table 5. Filter sizes

Unit Size Filter Quantity

Nominal Filter Sizes – Inches (Millimeters)

HDY and VDY

06 1 16-1/2"x24"(419x610)

08 1 16-1/2"x24"(419x610)

10 1 18-1/4"x33"(464x838)

12 1 18-1/4"x33"(464x838)

16 2 18-1/4"x21-1/2"(464x546)

20/22 2 20-1/2x22"(521x559)

30 2 29"x22"(737x559)

Filters, Replacement, InstallationEachunitisequippedwithreturnairfilters.Filtersmustbeperiodicallyreplaced.

Units’filtersare1”,2”or4”thick.Filterscanbeeasilyaccessedfromthesideorbottomofthefilterrack(SeeFigures19and20).

Toremovefiltersfromthesideofthefilterrack:

1. Removethesideaccesspanel(A)ofthefilterrackbypullingtabatthebottom(HDYortop(VDY)ofthepaneltofreefrommagnets,andloweritoutoftheslot(B)inthetopofthefilterframe

2. Pulloutdirtyfilters.3. Replacewithnewappropriatesizefilters.4. Tore-installsideaccesspanelintofilterrack:

a) Insertthetabofpanelintotheslotinfilterframe’stop(B).

b) Rotatepaneltowardtheframe,ensuremagnetsareengaged.

Toremovefiltersfromthebottom(HDY)ortop(VDY)ofthefilterrack:

1. Openhingedbottomaccesspanel(C)-pulldowntodisengagemagnets.

2. Pulloutdirtyfilters.3. Replacewithnewappropriatesizefilters.4. Securebottomaccesspanels,makesuremagnets

arere-engaged.

Unitsaredesignedtoacceptvariousfiltersizesdependingonjobrequirements.EachfilterframeisequippedwithFilterSupportAngleBrackets(D)and1”or2”filterslotsonallfoursidesoffilterframe.TheFilterSupportAngleBrackets(D)aredesignedtoprovideguidanceandsupporttothenewfilterasitisbeinginserted.

Inordertoaccommodate1”and2”filters,thebracketshouldbeinsertedintocorrespondingslotsonallsidesofthefilterframe(SeeFigures19and20)andsecuredwithscrews.When4”filterisinstalled,thebracketsshouldbestoredforfutureusewithdifferentfilterthickness,ordiscardedif4”filterwillbealwaysused.


19

SECTIONFIVE—Service/Maintenance,Cont’d.Figure 19. HDY Filter rack

1” Filter

2” Filter

4” Filter

Magnet

BA

C

See Detail X

Detail X

See Detail Y

Detail Y

Filter Support Angle Bracket

Filter Support Angle Bracket

1” Filter Slot

2” Filter Slot

D


20

Figure 20. VDY Filter rack

SEE DETAIL Y

SEE DETAIL X

DETAIL X

DETAIL Y

MAGNETSC

2" FILTER

1" FILTER

4" FILTER

B

A

D

2" FILTER BRACKETMOUNTING HOLES

1" FILTER BRACKETMOUNTING HOLES

FILTER SUPPORTANGLE BRACKET

FILTER SUPPORTANGLE BRACKET

SECTIONFIVE—Service/Maintenance,Cont’d.


21

SECTIONFIVE—Service/Maintenance,Cont’d.PipingConnectionLocation(CenterlinetoCenterline)–HydronicCoolingandHeatingCoilsFigure 21. Hydronic coil piping connection diagram

0

0

2(51)

B

C6-

7/8(

175)

8-5/

8(21

9) E

D

1-5/8(41)

A

2-11

/16(

68) G F

10-3

/8(2

64)

Coil Header Connection Size

Unit Size

8 Row 6 Row 4 Row 2 Row HW 1 Row HWNom. Size

ActualOD

Nom. Size

ActualOD

Nom. Size

ActualOD

Nom. Size

ActualOD

Nom. Size

ActualOD

06-12 1 1.125 3/4 0.875 3/4 0.875 1/2 0.625 1/2 0.62516-22 1 1.125 1 1.125 1 1.125 1 1.125 1/2 0.62530 1-1/2 1.625 1-1/2 1.625 1-1/2 1.625 1-1/2 1.625 1-1/2 1.625

CR-ColdWaterReturnHR-HotWaterReturnCS-ColdWaterSupplyHS-HotWaterSupplyRH-RightHandLH-LeftHand

Unit SizeCoil Rows

A B C D E F GCool Heat

06/08

4– –

6-1/8 12-3/4

– – –5-15/161 3-1/2 15-1/2 7 7

2 3-13/16 15-13/16 7-9/16 7-9/16

6– – – – –

8-1/81 3-1/2 15-1/2 9-3/16 9-3/162 3-13/16 15-13/16 9-3/4 9-3/4

8 – – – – – 10-1/4

10/12

4– –

7-3/4 14-3/8

– – –5-15/161 5-1/8 17-1/8 7 7

2 5-7/16 17-7/16 7-9/16 7-9/16

6– – – – –

8-1/81 5-1/8 17-1/8 9-3/16 9-3/162 5-27/61 17-7/16 9-3/4 9-3/4

8 – – – – – 10-1/4

16

4

– – 7-3/415-5/8

– – –

5-15/161 LH10-5/8 7-3/4 12 9-5/8 7RH13-3/8 9-5/8 7

2 12 7 16-3/8 13-5/8 10-3/8 7-9/16

6

– – 7-3/415-5/8

– – –

8-1/81 LH10-5/8 7-3/4 12 11-13/16 9-3/16RH13-3/8 11-13/16 9-3/16

2 12 7 16-3/8 13-5/8 12-1/2 9-3/48 – – 9-1/2 15-5/8 – – – 10-1/4

20/22

4

– – 7-13/16

18-3/16

– – –5-15/161 LH11-15/16 7-13/16 13-5/16 9-5/8 7RH14-11/16

2 11-9/16 7-7/8 15-13/16 9-1/16 5

6

– – 7-13/16 – – –8-1/81 LH11-15/16 7-13/16 13-5/16 11-13/16 9-3/16RH14-11/16

2 11-9/16 7-7/8 15-13/16 11-1/4 7-1/88 – – 7-13/16 – – – 10-1/4

30

4– –

5-15/16 26-5/16

– – – 5-15/161 7-1/16 25-13/16 9 7 4-7/82 10-5/16 23-13/16 9-1/8

6– – – – – 8-1/81 7-1/16 25-13/16 11-1/8 9-1/8 7-1/162 10-5/16 23-13/16 11-5/16

8 – – – – – 10-1/4

Table 6. Hydronic coil piping connections

Horizontal, left hand unit with re-heat coil shown.


22


Figure 22. DX coil piping connection diagram

HR-HotWaterReturnHS-HotWaterSupplyLL-LiquidLineSL-SuctionLine

Table 7. DX coil piping connection

Horizontal, left hand unit with pre-heat coil shown.

0

0

2(51)

B

D

6-7/

8(17

5)

8-5/

8(21

9)

A

GH E

1-5/8(41)

F

C

SIZECOIL ROWS

A B C D E F G HDX ONLY WATER PRE-HEAT

06/08

4 –

4-3/4 5-1/2

– –

12-1/2

2-3/4 – –6 4

1 6 18

3-3/4 2-5/8 2-5/86 4

2 4-7/8 3-1/4 3-1/46

10/12

4 –

6-1/2 7-1/8

– –

12-1/2

2-3/4 – –6 4

1 5-1/8 17-1/8

3-3/4 2-5/8 2-5/86 4

2 4-7/8 3-1/4 3-1/46

16

4 –

6-1/27-1/8

– –

12-1/2

2-3/4 – –6 4

1 5-1/8 17-1/8 3-3/4 2-5/8 2-5/86 4

2 6-3/8 10 13-5/8 6-6/8 4-1/8 2-5/86

20/22

4 –

6-1/2 7-1/8– –

12-1/2

2-3/4 – –6 4

1 5-1/4 19-3/4 3-3/4 2-5/8 2-5/86 4

2 6-3/4 7-1/4 11-5/8 15-7/8 6-3/4 4-1/4 2-5/86

30

4 – 4-5/8 5-3/8 – –

12-1/2

2-3/4 – –6 4

1 4-7/8

6 12-1/8 25-7/8 6-1/84-1/2 2-5/8

6 4

2 5-3/8 10-3/8 23-7/8 6-3/86

Coil Header Connection Size (Nominal OD in Inches)

Unit Size

LL SL 2 Row HW 1 Row HWNom. Size

ActualOD

Nom. Size

ActualOD

Nom. Size

ActualOD

Nom. Size

ActualOD

06-12 1/4 0.375 3/4 0.875 1/2 0.625 1/2 0.62516-22 1/4 0.375 1 1.125 1 1.125 1/2 0.62530 1/2 0.625 1-1/2 1.625 1-1/2 1.625 1-1/2 1.625

PipingConnectionLocation(CenterlinetoCenterline)–R-410ACoolingw/HotWaterHeating


23

SECTIONFIVE—Service/Maintenance,Cont’d.Figure 23. HDY unit submittal drawing

Size Fan Size Depth Width Height

Supply Duct Flanges Return Duct Flanges Mounting Holes Aux.Ctrl. Box M

A B C D E F G J K L

06 9x6 36 (914)

28 (711)

19-3/4(502)

8-7/8 (225)

10-7/8 (276)

13-3/4 (349)

2-1/4 (57)

24-1/4 (616)

14 (356)

2-3/4 (70)

27-1/4 (686)

35-1/4 (895)

5-3/4 (146)

2 (51)

08 9x6 36 (914)

28 (711)

19-3/4(502)

8-7/8 (225)

10-7/8 (276)

13-3/4 (349)

2-1/4 (57)

24-1/4 (616)

14 (356)

2-3/4 (70)

27-1/4 (686)

35-1/4 (895)

5-3/4 (146)

2 (51)

10 9x6 37-1/2 (953)

37(940)

21-1/2(546)

10-1/4 (260)

10-7/8 (276)

14-1/2 (368)

2-1/4 (57)

33-1/4 (845)

15-3/4 (401)

2-7/8 (73)

36-1/4 (921)

37 (940)

5 (124)

2 (51)

12 9x6 37-1/2 (953)

37(940)

21-1/2(546)

10-1/4 (260)

10-7/8 (276)

14-1/2 (368)

2-1/4 (57)

33-1/4 (845)

15-3/4 (401)

2-7/8 (73)

36-1/4 (921)

37 (940)

5 (124)

2 (51)

16 10x7 37-3/4 (959)

47 (1194)

21-1/2(546)

13 (330)

12 (305)

18-3/8 (467)

2-1/4 (57)

43-7/8 (1115)

15-3/4 (401)

2-7/8 (73)

46-1/4 (1175)

37 (940)

1-1/4 (32)

1-1/2 (38)

20/22 11x10 40-1/4 (1022)

48 (1219)

24 (610)

16-1/4 (413)

13 (330)

17-1/4 (438)

2-1/4 (57)

44-1/4 (1124)

18 (457)

2-7/8 (73)

47-1/4 (1200)

39-1/2 (1033)

2-3/8 (60)

2 (51)

30 12x12 40-1/4 (1022)

48 (1219)

32-1/4(819)

16-1/4 (413)

14 (356)

16 (406)

7-1/8(181)

44-1/4 (1124)

26-1/2 (673)

1-1/4 (32)

47-1/4 (1200)

39-1/2 (1033)

3-3/4 (95)

2 (51)

NOTES:1. RHshown,LHopposite. 2. Alldimensionsare+/-1/4”(6mm). 3. Productspecificationsaresubjecttochangeswithoutnotice. 4. Dimensionsinparenthesisareinmillimeters. 5. Allowadequatespacingformanueverabilityaroundunittoallowservicethroughrecommendedaccessarea. 6. “C”Dimensionismeasuredfromcoilsideofunit. 7. Mixingboxoptionwillvaryreturnductdimensions,refertomixingboxsubmittal. 8. Auxiliarycontrolboxrequiredwith3-speedECmotorsand/orcabinetlightingoption,notrequiredwithlowvoltage(0-10V)controls.

Drawing is not to scale and is provided for reference only. Dimensions may vary with options ordered. Consult IEC website for submittal drawings.


24

SECTIONFIVE—Service/Maintenance,Cont’d.Figure 24. HDY unit with Mixing Box submittal drawing

Drawing is not to scale and is provided for reference only. Dimensions may vary with options ordered. Consult IEC website for submittal drawings.

Size Fan Size Depth Unit

Depth Width HeightSupply Duct Return Duct(s) Mix

Box Mounting Holes Aux.Box

A B C D E F G H J K L

06 9x6 51-5/8 (1311)

36 (914)

28 (711)

22-3/4(578)

8-7/8 (225)

10-7/8 (276)

13-3/4 (349)

2-1/4 (57)

24 (610)

6 (152)

12-1/2 (318)

11 (279)

27-1/4 (686)

35-1/4 (895)

5-3/4 (146)

08 9x6 51-5/8 (1311)

36 (914)

28 (711)

22-3/4(578)

8-7/8 (225)

10-7/8 (276)

13-3/4 (349)

2-1/4 (57)

24 (610)

6 (152)

12-1/2 (318)

11 (279)

27-1/4 (686)

35-1/4 (895)

5-3/4 (146)

10 9x6 55-1/8 (1400)

37-1/2 (953)

37(940)

24-1/2(622)

10-1/4 (260)

10-7/8 (276)

14-1/2 (368)

2-1/4 (57)

33 (838)

8 (203)

14-1/4 (362)

13 (330)

36-1/4 (921)

37 (940)

5 (124)

12 9x6 55-1/8 (1400)

37-1/2 (953)

37(940)

24-1/2(622)

10-1/4 (260)

10-7/8 (276)

14-1/2 (368)

2-1/4 (57)

33 (838)

8 (203)

14-1/4 (362)

13 (330)

36-1/4 (921)

37 (940)

5 (124)

16 10x7 55-3/8 (1407)

37-3/4 (959)

47 (1194)

24-1/2(622)

13 (330)

12 (305)

18-3/8 (467)

2-1/4 (57)

43 (1092)

8 (203)

14-1/4 (362)

13 (330)

46-1/4 (1175)

37 (940)

1-1/4 (32)

20/22 11x10 57-3/4 (1467)

40-1/4 (1022)

48 (1219)

27(686)

16-1/4 (413)

13 (330)

17-1/4 (438)

2-1/4 (57)

44 (1118)

8 (203)

16-3/4 (425)

13 (330)

47-1/4 (1200)

39-1/2 (1033)

2-3/8 (60)

30 12x12 59-3/4 (1518)

40-1/4 (1022)

48 (1219)

35-1/4(895)

16-1/4 (413)

14 (356)

16 (406)

7-1/8(181)

44 (1118)

10 (254)

15 (381)

15 (381)

47-1/4 (1200)

39-1/2 (1033)

3-3/4 (95)

NOTES:1. RHshown,LHopposite. 2. Alldimensionsare+/-1/4”(6mm). 3. Productspecificationsaresubjecttochangeswithoutnotice. 4. Dimensionsinparenthesisareinmillimeters. 5. Allowadequatespacingformanueverabilityaroundunittoallowservicethroughrecommendedaccessarea. 6. “C”Dimensionismeasuredfromcoilsideofunit. 7. Mixingboxoptionwillvaryreturnductdimensions. 8. Mixingboxoptionsinclude: A.)Knockdownbaserailsforfieldassembly,whicharelettercodedforeaseofassembly.Allassemblyhardwareincluded. B.)Preassembledmixingbox.Refertotechnicalcatalogformoredetails. 9. Linkagekitsuppliedwithmixingboxisprovidedforfieldinstallationofactuator,consistingof2crankarms,2swivels,andeithera25”(sizes06-16)or34”(sizes20-40)length

of5/16”Rod. 10.Add2”(51)ifusingapre-filteror4”(102)filter. 11.Auxiliarycontrolboxrequiredwith3-speedECmotorsand/orcabinetlightingoption,notrequiredwithlowvoltage(0-10V)controls.


25

SECTIONFIVE—Service/Maintenance,Cont’d.Figure 25. VDY unit submittal drawing Drawing is not to scale and is provided for reference only.

Dimensions may vary with options ordered. Consult IEC website for submittal drawings.

Size Fan Size Depth Width HeightSupply Duct Return Duct Aux.Ctrl. Box Unit side to

duct flangeUnit bottom to duct flange

A B C E F L M N

06 9x6 20 (508)

28 (711)

36-1/2(927)

8-7/8 (225)

10-7/8 (276)

15-1/8 (384)

24-1/4 (616)

14 (356)

4-1/2 (114)

1-7/8 (48)

2-7/8 (73)

08 9x6 20 (508)

28 (711)

36-1/2(927)

8-7/8 (225)

10-7/8 (276)

15-1/8 (384)

24-1/4 (616)

14 (356)

4-1/2 (114

1-7/8 (48)

2-7/8 (73)

10 9x6 22(559)

37(940)

39-3/8(1000)

8-7/8 (225)

10-7/8 (276)

21-1/2 (546)

33-1/4 (845)

15-3/4 (401)

0 (0)

1-7/8 (48)

2-7/8 (73)

12 9x6 22 (559)

37(940)

39-3/8(1000)

8-7/8 (225)

10-7/8 (276)

21-1/2 (546)

33-1/4 (845)

15-3/4 (401)

0 (0)

1-7/8 (48)

2-7/8 (73)

16 10x7 22 (559)

47 (1194)

39-3/8(1000)

10-3/8 (264)

12 (305)

16-5/8 (422)

43-7/8 (1115)

15-3/4 (401) 3(76) 1-5/8

(48)2-7/8 (73)

20/22 11x10 24 (610)

48 (1219)

45-1/8(1146)

13-7/8 (352)

13 (330)

17-1/8 (435)

44-1/4 (1124)

18 (457)

2-1/2 (64)

1-7/8 (48)

3-1/8 (79)

30 12x12 28 (711)

48 (1219)

54-1/4(1378)

16-1/4 (413)

14 (356)

16 (406)

44-1/4 (1124)

26-1/2 (673)

3-5/8 (92)

1-7/8 (48)

2-3/4 (70)

NOTES:1. RHshown,LHopposite. 2. Alldimensionsare+/-1/4”(6mm). 3. Productspecificationsaresubjecttochangeswithoutnotice. 4. Dimensionsinparenthesisareinmillimeters. 5. Allowadequatespacingformanueverabilityaroundunittoallowservicethroughrecommendedaccessarea. 6. “C”Dimensionismeasuredfromcoilsideofunit. 7. Mixingboxoptionwillvaryreturnductdimensions,refertomixingboxsubmittal.


26

SECTIONFIVE—Service/Maintenance,Cont’d.Figure 26. VDY unit with Mixing Box submittal drawing Drawing is not to scale and is provided for reference only.

Dimensions may vary with options ordered. Consult IEC website for submittal drawings.

Size Fan Size Depth Unit Depth Width Height

Supply Duct Return Duct Mix Box Aux.BoxUnit side to duct flange

Unit bottom to duct flange

A B C E F H L M N

06 9x6 35-1/2 (902)

20 (508)

28 (711)

36-1/2(927)

8-7/8 (225)

10-7/8 (276)

15-1/8 (384)

24 (610)

6 (152)

11 (279)

4-1/2 (114)

1-7/8 (48)

2-7/8 (73)

08 9x6 35-1/2 (902)

20 (508)

28 (711)

36-1/2(927)

8-7/8 (225)

10-7/8 (276)

15-1/8 (384)

24 (610)

6 (152)

11 (279)

4-1/2 (114)

1(25)

2-7/8 (73)

10 9x6 39-1/2 (1003)

22 (559)

37 (940)

39-3/8(1000)

8-7/8 (225)

10-7/8 (276)

21-1/2 (546)

33 (838)

8 (203)

13 (330)

0 (0)

1-7/8 (48)

2-7/8 (73)

12 9x6 39-1/2 (1003)

22 (559)

37 (940)

39-3/8(1000)

8-7/8 (225)

10-7/8 (276)

21-1/2 (546)

33 (838)

8 (203)

13 (330)

0 (0)

1-7/8 (48)

2-7/8 (73)

16 10x7 39-1/2 (1003)

22 (559)

47 (1194)

39-3/8(1000)

10-3/8 (264)

12 (305)

16-5/8 (422)

43 (1092)

8 (203)

13 (330)

3 (76)

1-5/8 (41)

2-7/8 (73)

20/22 11x10 41-1/2 (1054)

24 (610)

48 (1219)

45-1/8(1146)

13-7/8 (352)

13 (330)

17-1/8 (435)

44 (1118)

8 (203)

13 (330)

2-1/2 (64)

1-7/8 (48)

3-1/8 (79)

30 12x12 47-1/2 (1207)

28 (711)

48 (1219)

54-1/4(1378)

16-1/4 (413)

14 (356)

16 (406)

44 (1118)

10 (254)

15 (381)

3-5/8 (92)

1-7/8 (48)

2-7/8 (73)

NOTES:1. RHshown,LHopposite. 2. Alldimensionsare+/-1/4”(6mm). 3. Productspecificationsaresubjecttochangeswithoutnotice. 4. Dimensionsinparenthesisareinmillimeters. 5. Allowadequatespacingformanueverabilityaroundunittoallowservicethroughrecommendedaccessarea. 6. “C”Dimensionismeasuredfromcoilsideofunit. 7. Mixingboxoptionwillvaryreturnductdimensions,refertomixingboxsubmittal. 8. MixingBoxoptionsinclude:A)Knockdownbaserailsforfieldassembly;B)Pre-assembledMixingBox 9. LinkagekitsuppliedwithMixingBoxisprovidedforfieldinstallationofactuator,consistingof2crankarms,2swivels,andeithera25”(sizes06-16)or34”(sizes20-30)length

of5/16”rod. 10.Add2”(51)ifusingaPrefilter,or4”(102)filter.


27

SECTIONFIVE—Service/Maintenance,Cont’d.Table 8. Electric heater data

kW

FULL LOAD AMPS

Single-Phase Three-Phase

120 V 208 V 240 V 277 V 208 V 240 V 480 V

1 8.3 4.8 4.2 3.6 2.8 2.4 1.2

1.5 12.5 7.2 6.3 5.4 4.2 3.6 1.8

2 16.7 9.6 8.3 7.2 5.6 4.8 2.4

2.5 20.8 12 10.4 9 6.9 6 3

3 25 14.4 12.5 10.8 8.3 7.2 3.6

3.5 29.2 16.8 14.6 12.6 9.7 8.4 4.2

4 33.3 19.2 16.7 14.4 11.1 9.6 4.8

4.5 37.5 21.6 18.8 16.2 12.5 10.8 5.4

5 - 24 20.8 18.1 13.9 12 6

6 - 28.8 25 21.7 16.7 14.4 7.2

7 - 33.7 29.2 25.3 19.4 16.8 8.4

8 - 38.5 33.3 28.9 22.2 19.2 9.6

9.9 - - - 35.7 27.5 23.8 11.9

12 - - - 43.3 33.3 28.9 14.4

14 - - - - 38.9 33.7 16.8

15 - - - - 41.6 36.1 18

16 - - - - - 38.5 19.2

18 - - - - - - 21.7

19.9 - - - - - - 23.9

25 - - - - - - 30.1

30 - - - - - - 36.1

kWUNIT SIZE

6 8 10 12 16 20/22 30

1 X X - - - - -

1.5 X X X X - - -

2 X X X X - - -

2.5 X X X X X - -

3 X X X X X - -

3.5 X X X X X X -

4 X X X X X X -

4.5 X X X X X X -

5 X X X X X X -

6 X X X X X X X

7 - X X X X X X

8 - X X X X X X

9.9 - - X X X X X

12 - - - X X X X

14 - - - X X X X

15 - - - X X X X

16 - - - X X X X

18 - - - - - X X

19.9 - - - - - X X

25 - - - - - - X

30 - - - - - - X

Table 9. Electric heater data availability

LEGEND: x=Offered -=NotOffered

NOTES:1. AvailableStages A.)SinglePhase:1to12kW,1stageonly 3to12kW,1stageor2stage B.)Threephase:1tomax30kW,1stageonly 4tomax30kW,1or2stage 12tomax30kW,1,2,or3stage 2. ElectricHeaterCapacities(Btuh)=HeaterkWx3413 3. ElectricHeaterAmperageforSinglePhase Power=(HeaterkWx1000)/(AppliedVoltagex1.73)


28

Table 10. Motor Performance Data (Full Load AMPS)

MOTOR TYPE VOLTAGE

UNIT SIZE

06, 10 08, 12, 16, 20 22 30

MOTOR HORSEPOWER AND FLA

1/2 HP 1 HP 1-1/2 HP 3 HP

1-PHASESINGLESPEED

STANDARDEFFICIENCY

115V/1PHASE/50-60HZ 6.4 10.7 N/A N/A

208V/1PHASE/50-60HZ 3.8 6.3 N/A N/A

230V/1PHASE/50-60HZ 3.6 5.8 N/A N/A

277V/1PHASE/50-60HZ 3.2 5.1 N/A N/A

3-PHASESINGLESPEED

STANDARDEFFICIENCY

208V/3PHASE/50-60HZ 2.0 3.7 4.4 8.9

230V/3PHASE/50-60HZ 1.85 3.3 4.4 8.9

460V/3PHASE/50-60HZ 1.0 1.75 2.2 4.4

NOTES:1. MotorFullLoadampsrefertoNationalElectricCode(NEC)amps;actualmotornameplateampsmayvary. 2. MotorsareULrecognized,constantspeedbrushlessDCtype,opendripproof,ballbearing,multi-voltageoptions,0-10Vcontrol.



29

AppendixI–TypicalWiringDiagramExamplesWARNING: Wiring diagrams are provided as an example only. ALWAYS refer to WIRING DIAGRAM attached to the unit.

NoElectricHeat,SinglePhasePowerwithControlBoard

NoElectricHeat,ThreePhasePowerwithControlBoard


30

AppendixI–TypicalWiringDiagramExamples,Cont’d.SingleElementHeater,SingleStageHeat,SinglePhasePowerwithControlBoard

TwoElementHeater,SingleStageHeat,SinglePhasePowerwithControlBoard


31

AppendixI–TypicalWiringDiagramExamples,Cont’d.TwoElementHeater,TwoStageHeat,SinglePhasePowerwithControlBoard

ThreeElementHeater,SingleStageHeat,ThreePhasePowerwithControlBoard


32

SECTIONFIVE—Service/Maintenance,Cont’d.SixElementHeater,SingleStageHeat,ThreePhasePowerwithControlBoard

SixElementHeater,TwoStageHeat,ThreePhasePowerwithControlBoard


33

AppendixI–TypicalWiringDiagramExamples,Cont’d.NineElementHeater,SingleStageHeat,ThreePhasePowerwithControlBoard

NineElementHeater,TwoStageHeat,ThreePhasePowerwithControlBoard


34

AppendixI–TypicalWiringDiagramExamples,Cont’d.NineElementHeater,ThreeStageHeat,ThreePhasePowerwithControlBoard


35

AppendixI–TypicalWiringDiagramExamples,Cont’d.NoElectricHeat,SinglePhasePowerwithoutControlBoard

NoElectricHeat,ThreePhasePowerwithoutControlBoard


36

AppendixI–TypicalWiringDiagramExamples,Cont’d.SingleElementHeater,SingleStageHeat,SinglePhasePowerwithoutControlBoard


37

AppendixI–TypicalWiringDiagramExamples,Cont’d.TwoElementHeater,TwoStageHeat,SinglePhasePowerwithoutControlBoard

ThreeElementHeater,SingleStageHeat,ThreePhasePowerwithoutControlBoard


38

AppendixI–TypicalWiringDiagramExamples,Cont’d.SixElementHeater,SingleStageHeat,ThreePhasePowerwithoutControlBoard

SixElementHeater,TwoStageHeat,ThreePhasePowerwithoutControlBoard


39

AppendixI–TypicalWiringDiagramExamples,Cont’d.NineElementHeater,SingleStageHeat,ThreePhasePowerwithoutControlBoard

NineElementHeater,TwoStageHeat,ThreePhasePowerwithoutControlBoard


40

AppendixI–TypicalWiringDiagramExamples,Cont’d.NineElementHeater,ThreeStageHeat,ThreePhasePowerwithoutControlBoard


41

EquipmentInstallationandStart-UpChecklist

IECblowercoilsrepresentaprudentinvestmentwhichcangivetrouble-freeoperationandlongservice.Thereliableoperationandlongservicelifeofthisequipmentcanbeimprovedwithproperinstallation,operationandregularmaintenance.TheequipmentisinitiallyprotectedunderIEC’sstandardwarranty.Thiswarrantyisprovidedundertheconditionthatthefollowingstepsbefollowedindetail.Shouldanyquestionsarise,pleasecontactyourlocalsalesrepresentativeorthefactorybeforeattemptinganyinstallationoroperationoftheequipment.

ReceivingandInspection Unitreceivedundamaged Unitreceivedcompleteasordered “Furnishonly”partsaccountedfor Unitarrangement/handcorrect Unitstructuralsupportcompleteandcorrect

HandlingandInstallation Unitissecureandmountedproperly Mountinggrommets/isolatorsused Unitmountedlevelandsquare Properaccessprovidedforunitandaccessories Properelectricalserviceprovided Properovercurrentprotectionprovided Properserviceswitch/disconnectprovided Properchilledwaterlinesizetounit Properhotwaterlinesizetounit Properrefrigerantlinesizetounit Allservicestounitincodecompliance Allshippingscrewsandbracesremoved Unitprotectedfromdirtandforeignmatter

Cooling/HeatingConnections Connectfieldpipingtounit Pressuretestallpipingforleaks Installdrainlineandtraps,asrequired Insulateallpipingandvalves,asrequired

DuctworkConnections Installductwork,fittingsandgrillesasrequired Flexibleductconnectionsatunit Propersupplyandreturngrilletypeandsizeused Insulateallductwork,asrequired Controloutsideairforfreezeprotection

ElectricalConnections Refertounitwiringdiagram Connectincomingpowerserviceorservices Installandconnect“furnishonly”parts Allfieldwiringincodecompliance

UnitStart-up Generalvisualunitandsysteminspection Checkallwiringforsecureconnections Tightenallsetscrews Checkcondensatedrainconnection Verifytrapisdeepenough Primethetrapwithwater. Checksupplyandreturnwaterconnectionsforleaks Fillsystemswithwater/refrigerant Openairventontopofcoiltoventairoutofsystem Flushwatersystems Recordelectricalsupplyvoltage Checkforproperfanrotation Ductworkandgrillesinplace Allunitpanelsandfiltersinplace Startfans,pumps,chillers,etc. Checkforoverloadconditionsofallunits Checkallductworkandunitsforairleaks Balancewatersystems,asrequired Balanceairsystems,asrequired Recordallfinalsettingsforfutureuse Checkpipingandductworkfornoiseorvibration Checkalldampersforproperoperation Verifypropercoolingoperation Verifyproperheatingoperation Reinstallallcoversandaccesspanels Verifypropercondensatedrainage

RecommendedMaintenanceQuarterly Changeairfilters

Annually–in addition to quarterly maintenance Inspectallwiringconnectionsandtightenif

necessary Cleancoilanddrainpan Cleanblowerwheelasneeded


42

Replacement Parts (1-866-432-7278)Usefactoryreplacementpartswhereverpossibletomaintainoptimalunitperformance,factoryconditionedoperatingcharacteristics,andtestingagencylistings.ReplacementpartsareavailableforpurchasevialocalIECSalesRepresentative.

ContactlocalSalesRepresentativeand/orfactorypriortoALLunitmodifications.ALLmodificationsnotpre-authorizedbyfactorycouldresultinpersonnelinjury,unitdamage,andvoidALLfactorywarranties.

Whenordering,providethefollowingtoensureproperpartidentification:

1. Completeunitmodelnumber2. Unitserialnumber3. Unithandconnection(rightorlefthand)when

facingairstream,handisdeterminedbylookingatthefrontoftheunitandlocatingwherethecontrolvalveismounted(ontheRightorLeftside).

4. CompletepartdescriptionincludingALLnumbers.ForWarrantyReplacements,providealloftheabove,andunitshippingcode(locatedontheupperright-handcornerofserialplate).Contactfactoryforauthorizationtoreturnanypartsincludingdefectivepartsreplacedbywarranty.AllshipmentsreturnedtofactorymustbeendorsedwithfactoryprovidedReturnAuthorizationNumber.

Factory Recommended Spare Parts List• Transformer• Fuse• FuseHolder• ECMBoard(mustbeprogrammedbyfactorypriorto

shipment)• WireHarnessOverflowSwitch• lowerRubberIsolator• Motor/MotorMount(motormustbeprogrammedby

factorypriortoshipment)• BlowerHousing• Filter• Heaterelement• Autoresetheaterlimitswitch• Manualresetlimitswitch


43

TERMS AND CONDITIONS 1. Orders shall not be binding upon International Environmental Corporation, an Oklahoma

corporation (hereinafter referred to as “IEC”) unless accepted by an authorized representative of IEC at its office in Oklahoma City, Oklahoma. No distributor, sales representative or any other person or entity (except authorized employees of IEC at its office in Oklahoma City, Oklahoma) has any authority whatsoever to bind IEC to any representation or agreement of any kind.

2. IEC does not build items to plans and specifications. IEC agrees to furnish only the items as

described in IEC’s acknowledgment unless IEC’s office in Oklahoma City, Oklahoma has previously received and accepted, in writing, approved submittals from Purchaser.

3. Prices acknowledged are firm only if Purchaser releases the goods covered by this order for

immediate production by IEC within sixty (60) days from the date of Purchaser’s initial offer to purchase and for shipment by IEC within IEC’s estimated shipping date, unless otherwise agreed to in writing by IEC at its office in Oklahoma City, Oklahoma. If Purchaser does not meet the terms and conditions of this paragraph, the prices are subject to escalation to those prices in effect at time of shipment without notice to Purchaser.

4. All prices are F.O.B. IEC’s factory, unless otherwise agreed by IEC in writing; and, all payments

and prices shall be in U.S.A. dollars. 5. If goods are released for production but IEC is prevented by the Purchaser from shipping upon

completion or by IEC’s estimated shipping date, whichever is later, IEC may at its option, in addition to all other remedies, invoice Purchaser to be payable within thirty (30) days and store the goods at Purchaser’s sole expense.

6. Title to and risk of loss to the goods passes to the Purchaser F.O.B. IEC’s factory. 7. Disclaimer It is expressly understood that unless a statement is specifically identified as a warranty,

statements made by IEC or its representatives relating to IEC’s products, whether oral, written or contained in any sales literature, catalog or any other agreement, are not express warranties and do not form a part of the basis of the bargain, but are merely IEC’s opinion or commendation of IEC’s products. EXCEPT AS SPECIFICALLY SET FORTH HEREIN, THERE IS NO EXPRESS WARRANTY AS TO ANY OF IEC’S PRODUCTS. IEC MAKES NO WARRANTY AGAINST LATENT DEFECTS. IEC MAKES NO WARRANTY OF MERCHANTABILITY OF THE GOODS OR OF THE FITNESS OF THE GOODS FOR ANY PARTICULAR PURPOSE.

8. Grant of Limited Express Warranty IEC warrants IEC products purchased and retained in the United States of America and Canada to

be free from defects in material and workmanship under normal use and maintenance as follows: (1) All complete fan coil units built or sold by IEC for twelve (12) months from date of unit start up or eighteen (18) months from date of shipment (from factory), whichever comes first.

All parts must be returned to IEC’s factory in Oklahoma City, Oklahoma, freight prepaid, no later

than sixty (60) days after the date of the failure of the part; if IEC determines the part to be defective and within IEC’s Limited Express Warranty, IEC shall, when such part has been either replaced or repaired, return such to a factory recognized contractor or service organization, F.O.B. IEC’s factory, Oklahoma City, Oklahoma, freight prepaid. The warranty on any parts repaired or replaced under warranty expires at the end of the original warranty period. For information and warranty service contact:

International Environmental Corporation Customer Service 5000 West I-40 Oklahoma City, OK 73128 (405) 605-5000

This warranty does not cover and does not apply to: (1) Air filters, fuses, fluids; (2) Products

relocated after initial installation; (3) Any portion or component of any system that is not supplied by IEC, regardless of the cause of the failure of such portion or component; (4) Products on which the unit identification tags or labels have been removed or defaced; (5) Products on which payment to IEC is or has been in default; (6) Products which have defects or damage which result from improper installation, wiring, electrical imbalance characteristics or maintenance; or are caused by accident, misuse or abuse, fire, flood, alteration or misapplication of the product; (7) Products which have defects or damage which result from a contaminated or corrosive air or liquid supply or operation at abnormal temperatures; (8) Mold, fungus or bacteria damages; (9) Products subjected to corrosion or abrasion; (10) Products manufactured or supplied by others; (11) Products which have been subjected to misuse, negligence or accidents; (12) Products which have been operated in a manner contrary to IEC’s printed instructions; or (13) Products which have defects, damage or insufficient performance as a result of insufficient or incorrect system design or the improper application of IEC’s products.

IEC is not responsible for: (1) The cost of any fluids or other system components, or associated

labor to repair or replace the same, which is incurred as a result of a defective part covered by IEC’s Limited Express Warranty; (2) The costs of labor, materials or service incurred in removal of the defective part, or in obtaining and replacing the new or repaired part; or, (3) Transportation costs of the defective part from the installation site to IEC or of the return of any part not covered by IEC’s Limited Express Warranty.

Limitation: This Limited Express Warranty is given in lieu of all other warranties. If, notwithstanding the disclaimers contained herein, it is determined that other warranties exist, any such warranties, including without limitation any express warranties or any implied warranties of fitness for particular purpose and merchantability, shall be limited to the duration of the Limited Express Warranty.

9. Limitation of Remedies In the event of a breach of the Limited Express Warranty, IEC will only be obligated at IEC’s

option to repair the failed part or unit or to furnish a new or rebuilt part or unit in exchange for the part or unit which has failed. If after written notice to IEC’s factory in Oklahoma City, Oklahoma of each defect, malfunction or other failure and a reasonable number of attempts by IEC to correct the defect, malfunction or other failure and the remedy fails of its essential purpose, IEC shall refund the purchase price paid to IEC in exchange for the return of the sold good(s). Said refund shall be the maximum liability of IEC. THIS REMEDY IS THE SOLE AND EXCLUSIVE REMEDY OF THE BUYER OR THEIR PURCHASER AGAINST IEC FOR BREACH OF CONTRACT, FOR BREACH OF ANY WARRANTY OR FOR IEC’S NEGLIGENCE OR IN STRICT LIABILITY.

10. Limitation of Liability IEC shall have no liability for any damages if IEC’s performance is delayed for any reason or is

prevented to any extent by any event such as, but not limited to: any war, civil unrest, government restrictions or restraints, strikes, or work stoppages, fire, flood, accident, shortages of transportation, fuel, material or labor, acts of God or any other reason beyond the sole control of IEC. IEC EXPRESSLY DISCLAIMS AND EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGE IN CONTRACT, FOR BREACH OF ANY EXPRESS OR IMPLIED WARRANTY, OR IN TORT, WHETHER FOR IEC’s NEGLIGENCE OR AS STRICT LIABILITY.

11. IEC shall have no system design, application or maintenance responsibility or responsibility for

mold, fungus or bacteria to Purchaser or any other third party. 12. All sales, goods and services, use, excise, value added, transportation, privilege, occupational

consumption, storage, document, transaction or other taxes which may be levied by any taxing authority as a result of this transaction shall be paid by the Purchaser.

13. Unless otherwise agreed to in writing by IEC any technical data furnished in conjunction with this

order and not obtainable from another source shall not be duplicated, used, or disclosed in whole or in part for any purpose other than to evaluate this order.

14. IEC shall have no liability or other obligation hereunder, if IEC’s performance is delayed for any

reason or is prevented to any extent by any event such as, but not limited to: any act of God, strike or work stoppage, fire, flood, accident, allocation, or other controls of Government authorities, shortages of transportation, fuel, material or labor, or any other cause beyond IEC’s sole control. Any shipping date stated by IEC is IEC’s best estimate but IEC makes no guarantee of shipment by any such date and shall have no liability or other obligation for failure to ship on such date, regardless of cause.

15. Payment terms are net thirty (30) days from date of shipment on approved credit. One and one

half percent (1 1/2%) per month (18% annual rate) may be charged on past due accounts or the highest rate permitted by applicable law, whichever is lesser. In the event the account is placed for collection, Purchaser shall be responsible for all reasonable attorneys fees or costs on a solicitor and client basis, plus all other costs and expenses incurred by IEC in securing payment.

16. Purchaser shall not cancel the contract without prior written consent of an authorized

representative of IEC at its offices in Oklahoma City, Oklahoma. In the event Purchaser cancels the contract with the prior written consent of IEC after the Purchaser’s offer to purchase is received and acknowledged in writing, IEC shall be entitled to receive from Purchaser IEC’s cost incurred to time of cancellation plus a reasonable allowance for overhead and profit.

17. Purchaser shall not assign any of its interest or rights under this agreement without written consent

of IEC. 18. IEC will protect all its lien rights. IEC will not furnish lien waivers or releases until IEC receives

payment, in full, at its office in Oklahoma City, Oklahoma from Purchaser for the goods covered by this order. There is no authorized retainage for any reason.

19. This Agreement shall be construed, and the rights and liabilities of the parties hereunder shall be

determined in accordance with the laws of the State of Oklahoma. If it shall be found that any portion of this agreement violates any particular law of the United States or any state in the United States having jurisdiction or, if applicable, any law of Canada or any province or territory in Canada having jurisdiction, such portion of the agreement shall be of no force and effect in that political unit, division or sub-division in which they are illegal or unenforceable and the agreement shall be treated as if such portion or portions had not been inserted. In the event that any dispute or disagreement in connection with any order should arise or exist between Purchaser and IEC, jurisdiction and venue for any legal action shall be, if IEC so elects, exclusively in the state or federal courts in Oklahoma County, Oklahoma. The statute of limitations on any claim of the Purchaser against the IEC shall be one (1) year from the date the cause of action accrues.

20. Without regard to any other agreement, all obligations of Purchaser to IEC shall become

immediately due and payable if Purchaser becomes insolvent or if Purchaser does not make payments when due or breaches any other agreement or fails to perform any obligation.

21. All orders are expressly limited and made conditional upon acceptance by Purchaser of the terms

and conditions set forth above without change. There shall be no understandings, agreements, or obligations (outside these terms and conditions) unless specifically set forth in writing and accepted by signature of an authorized representative of IEC in Oklahoma City, Oklahoma.

22. The parties hereto have requested that these presents and all judicial proceedings relating thereto

be drafted in English. Les parties aux présentes ont demandé à ce que les présentes et toutes procedures judiciaires y afférentes soient rédigées en anglais

Forms\IEC\Standard Forms\Word Files\IEC Terms and Conditions 1-Page 09-10.doc

5000 W. I-40 Service Rd. Oklahoma City, OK 73128 P: 405.605.5000 F: 405.605.5001 www.iec-okc.com


ContactyourlocalIECSalesRepresentativeforfurtherdetailsandpricingapplicabletothisproduct.Visitourwebsite(iec-okc.com)tofindyourlocalIECSalesRep.

IECPartNumber:I100-90034479 IOM-092Revision1(10/2020) ©2020InternationalEnvironmentalCorporation(IEC)

vdy direct drive blower...the horizontal blower coil units have 5/8" knockouts in each corner...

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