VH Fan-Coil Units Hi-Rise, Vertical

catalog

VH Fan-Coil Units Hi-Rise, Vertical

2 ENVIRO-TEC

FORM ET115.26-EG5 (216) VH Fan Coil Units, Hi-Rise, Vertical

Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Construction Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Standard and Optional Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Coils, Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Electric Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Riser Selection and Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Fan Performance Curves, PSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13ECM Fan Motor Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Performance Fan Curves, EC Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Motor, Fan and Sound Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Unit Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

TABLE OF CONTENTS

NOTES:• Aweb-basedComputerSelectionProgram,“Web-Select”,isavailabletofacilitatetheselectionprocess. Contactyourrepresentativetoobtainaccesstothispowerfulandtime-savingprogram.• Somedrawingsarenotshowninthiscatalog.• Alldatahereinissubjecttochangewithoutnotice.• Drawingsnotforinstallationpurposes.• ETLReportNumberJ99024557-003forsingleVHunits.ForVHA/VHBunits,seeReportNumber3014576-002(nonfirerated)and3016281(UL1479firerated).

• VerticalHi-RisemodelsVHA/VHBweresubjectedtothefiretestprogramandcertifiedincompliancewiththerequirementsofUL1479byIntertekTestingServicesLtd.

ENVIRO-TEC 3

VH Fan Coil Units, Hi-Rise, Vertical FORM ET115.26-EG5 (216)

FEATURES AND BENEFITS

HIGH PERFORMANCE

ENVIRO-TEC VH Series Vertical Hi-Rise fan coil units are designed to maximize flexibility of selection andinstallation, and for ease of service .

The units are also designed to exceed the stringent quality standards of the institutional market, whileremaining cost competitive in the commercial and residentialsegmentsofthemarket.

ENVIRO-TECVerticalHi-Risefancoilunitssetthenewstandards for innovation, quality, flexibility, and com-petitive pricing .

DESIGN FLEXIBILITY

TheextensivevarietyofstandardoptionsavailableonVHSeriesfancoilsarewhereyoufindtheversatilitytofit any HVAC system designer’s needs .

Optionsinclude:singlewallstainlesssteeldrainpans,foil faced or elastomeric closed cell foam insulation, doubledeflectionaluminumdischargegrilles,manualormotorizedoutsideairdampersandelectricheatwithsingle point power connection and silent relays. AllelectricheatunitsarelistedwithETLasanassemblyandcarrythecETLlabel.

AllunitscomplywiththelatesteditionofAHRIStandard440 for testing and rating fan coil units, are certified, anddisplaytheAHRIsymbol.

High efficiency motors, fan relays, disconnects and fusingmeaneasiercoordinationbetweenmechanicaland electrical trades .

Coiloptionsallowforthreeorfourrowchilledwaterandoneor two rowhotwatercoils in the reheatpositiononly.Atotaloffiverowsofcoilareaccommodated.

CONVENIENT INSTALLATION

All VH Series fan coil units are shipped completely assembled, reducing field installation timeand labor.All units are thoroughly inspected and tested prior to shipment, eliminating potential problems at startup.Motorwiringisbroughttoacontrolcompartmentontheinsideoftheunit,reducingelectricalhook-uptime.

Factory furnished pressure tested valve packagesassure proper fit, operation and performance .

Factory furnishedpressure testedriserswithswagedconnections are available in a variety of materials,diameters and lengths .

VH Series fan coil units have several standard features thatprovideforinstallationflexibilitythatareunmatchedintheindustry.Featuringinternalstainlesssteelbraid-ed hoses that link the piping packages to the risershut-off valves, the unique design of the VH Series allows for easy field configuration of left hand, righthand,orback riser connectionswithout theneed forthermalcuttingandjoiningofpiping.Boththesidesaswellasthebackpanelsaremanufacturedwithriserslotknockouts.Supplyairopeningknockoutsareincludedon all sides, and the top of the unit . If requested, the VHC/VHM/VHSunitsshipfromthefactorywithknock-outs removed for the selected arrangement of supply air and riser location .

Risers may ship in advance of the unit to facilitate instal-lation and fire safing of floor penetrations in limited space.Delayingthedeliveryofunitsuntilwallsareinplaceprotectsthefancoilunitsfromconstructiondebrisduring installation and pressure testing of the risers .

OPTIMUM BUILDING PERFORMANCE

TheVHSeriesfancoilchassisisbuiltfromgalvanizedsteel . This metal surpasses the ASTM 125 hour salt spray test for corrosion and rust . Decorator front panels, supply grilles, and exposed cabinet Model VHX arepowdercoatedgalvannealed18gaugesteel.Standardinsulationis1/2inchthickfiberglass,complyingwithUL181 and NFPA 90A . Optional foil faced or elastomeric closedcellfoaminsulationmaybespecified.

Allunits,withorwithoutelectricheat,arecETLlistedandlabeled.AllwiringisincompliancewithNEC,assur-ingsafetyandqualityfortheowner.

VHSeriesfancoilunitshaveremovablefansandcoils.Theentirecoilassemblycanbeeasilyremovedfromthe unit and replaced or serviced on a workbench,reducingequipmentdowntime.Coilsareaccessibleforcleaningandremovableforserviceorreplacement.Filtersareeasilyreplaceablewhenthedecoratorfrontpanelisremoved.Asanoption,thedrainpancanbeequippedforremovalforcleaningorreplacementwith-outdisturbingthecoilassembly.

TandemMasterandTandemSlaveModelsVHA/VHBshipcompletewithrisersenclosedinawallplenumwithonelayerof5/8"gypsumforsoundattenuation.Asanoption, Tandem Master and Tandem Slave Units may be ordered with two layers of 5/8" gypsum and fireblockingmaterial. TheTandemMaster andTandemSlavefireratedunithasbeentestedandcertifiedfor1hourratingperUL1479.

4 ENVIRO-TEC


CONSTRUCTION FEATURESMODELS VHC, VHM, VHS, VHA/VHB, VHX

VHSeriesfancoilshavemanystandardandoptionalfeatureswhichareuniquetotheindustry(see page 7 for a complete listing) .

Doublewallcompositeorstainlesssteel(optional) insulated drain pans are doubleslopedtodrainconnections

Optionalremovabledrainpan

Chilledwatercoolingcoilsupto4rows

Hotwaterheatingcoilsupto2rowsarelocated in the reheat position

Maximum5totalrowsofcoilscombined

OptionalelectricheatisETLlistedasanassem-blyforsafetycompliance

Entireelectricheatassemblycanberemovedforservicing

Singlepointpowerconnectiononallunitswithandwithoutelectricheat

Powdercoated18gaugesteeldecora-torfrontpanelreturngrille(notshown)

Topdischargeknockoutpermits ducted connection

1/2"thickfiberglassinsu-lation (standard), or foil faced or elastomeric closed cell foam insulation (optional)

Integral1"throw-awayfilter(standard), or1"pleated or synthetic media filter (optional)

Permanentlylubricated,threetap,PSCfan motors designed for quiet and effi-cient operation

Fanassemblycanbeeasilyremovedforservicing on slide out rails

Doubledeflectiondischargegrille (optional)

Factorymountedchilledandhotwaterand condensate insulated risers (not shown).Risersmayalsoshipinadvance of the unit . ModelVHXexposedcabinet

featuresdurable,powdercoatpaint finish

Unitorwallmountedanalog,digitaldisplay,orprogrammablethermostats

P-trap(removable)connection to condensate drain riser

Fieldconfigurable.Bothsideandbackpanelsaremanufacturedwithknockoutsforriserpip-ing and supply air openings . Facilitates field conversion of riser and supply air grille loca-tions .

Factory mounted pipingpackages

Hinged,quickopencontroldoorallowseasy access to all electrical components

Stainlesssteelflexiblebraidedhoses provideinstallationflexibilityand accommodate riser expansion and contraction

Optionalblowershield(notshown)elimi-natesaccidentalcontactwithfanassembly

ETLandAHRI440listedandlabeled

TandemMasterandTandemSlaveModelsVHA/VHBshipcompletewithrisersenclosedinawallplenumwithonelayerof5/8"gypsumforsoundattenuation.Asanoption,TandemMasterandTandemSlaveunitsmaybeorderedwithtwolayersof5/8"gypsumandfireblockingmaterialforaonehourfireratingperUL1479 .

ENVIRO-TEC 5


CONSTRUCTION FEATURES

FAN DECK

For easeof service, the fan/motor assembly is easilyremovedbyunscrewingtwolocknutslocatedatthefrontof the assembly. Slide rails support the fan duringremoval and installation, and the electrical harness is equippedwithaquickconnectplug.

DRAIN PAN

Theslopedinsulateddrainpanisavailableinstainlesssteelconstruction.Standarddrainpansaredoublewall,composite,extendundertheentirecoilsection,doublesloped,andareremovable.Asanoption,theVHSeriesdrainpancanbeequipped foreasyremoval fromthefront of the unit for inspection and cleaning . For optimum moistureresistanceandcleanability,thefancoilunitmaybe lined with foil faced fiberglass insulation (shownabove)orelastomericclosedcellfoaminsulation.

FILTERS

Filteroptionsinclude1"throwaway(standard),pleatedMERV 8, or synthetic media . Filters are easily replace-ablefromthereturnairwhenthefrontpanelisremoved.

POWDER COAT PAINTED SURFACEExposedcabinetModelVHX,aswellasthefrontreturn textured decorator panel, fea-tureapowdercoatfinishthatresists scuffing, scratching, fading, and fingerprints .

COILS AND PIPING

Allfancoilsareavailablein2or4pipeconfigurations.The heating coil is standard in the reheat position . Accessforcleaningonboththeenteringandleavingairsidesisavailable.Coilsareremovablefromthefrontofthe unit for service .

STAINLESS STEEL BRAIDED HOSES

Stainless steel braided hoses allow for flexibility andthermalexpansionwithintheunitcabinet.Thehose-to-coil and hose-to-riser connections are made via a threadedswiveladapter,simplifyingcoilremoval.

RISERS

Risers, coils and piping packages are pressure testedandshipinstalledontheunitasacompletepack-age . Risers may also ship in advance of the unit . This optiongreatly simplifies installation,while keeping theunitsfreeofconstructiondebrisduringpressuretestingof the risers .

CONTROL ENCLOSURE

The spacious hinged electrical compartment houses all electric heat and control components . Terminal stripsarefurnishedforsimplepowerandcontrolwiringconnections .

6 ENVIRO-TEC


CONSTRUCTION FEATURES

REDUCING MOLD GROWTH IN HI-RISE RESIDENTIAL PROJECTS

VHSeriesfancoilsfeatureseveraloptionstomitigatemoldandmildewwhenappliedinaproperlydesignedandconstructedbuilding.Forhumidclimates,ENVIRO-TECoffersinnovationstoensureoptimumhumiditycontrolatpart load conditions .

• Elastomeric closed cell foam insulationisagreatalternativetofiber-glassinsulationinextremelyhumidclimates,aswellaseducationalandhi-riseresidentialfacilities.Thematerial'ssmoothandcleanablesurfacemakes it naturallymold resistant, with no danger of fibrousmaterialentering the airstream . Additional features include:

- Easilycleanedsurface resistsdirt,moistureabsorption,andmicro-bialgrowth–eveniftornorpunctured.

- Higher temperature limit than polyethyleneCCF, able towithstandservicetemperaturespikeswithoutpermanentfailure.

- MoreflexiblethanpolyethyleneCCFat75°F,allowingexpansionandcontraction in hot and cold cycle applications .

- Compression resistance; retains its thermal insulating capacity . - Outermoisturevaporbarrierorlinernotrequired. - Ratings: NFPA 90A and 90B, ASTM E84, ASTM G-21 (fungi resis-

tance),UL181(moldgrowth/humidityandairerosion)

• Motorized coil bypass damperinconjunctionwithfanspeedcontrolincreases dehumidification at part load and more closely matches cool-ingcapacitytotheroomloadduringoffpeakoperation.

• Innovative temperature and humidity controller improves part load relative humidity control .

• Deep loading, synthetic media filtrationprotectsboththecoilandthecoilbypassairfromairbornecontaminants.Filterframeandmediaarenonorganic,andwillnotsupportmoldgrowth.

• Ship In Advance Risers allow installation and pressure testing duringbuildingconstruction,priortounitsarrivingonjobsite.

• Stainless Steel Drain Pans and Coil Casingsareavailable forusewhereaddedcorrosionresistanceorlongevityarerequired.

• Coils and piping packages are removable in minutes through the standardfrontpanelwithonlyascrewdriverandpairofwrenchesforperiodic cleaning or service outside of the unit .

• IAQ drain panisdoubleslopedtopreventstandingwater.Anoptionaldrainpanisremovableforeffectivecleaning.

Refer to the Guide Specifications in this catalog for additional information on many of these features .

Supplyairopeningknockoutsmaybeleftinplaceduringbuildingcon-structiontokeepunitsdryandfree

fromconstructiondebris.

Positively sloped drain pan prevents standingwater;linedwithclosedcell

foam insulation for addedmoisture protection .

ENVIRO-TEC 7


STANDARD AND OPTIONAL FEATURES

STANDARD FEATURES

Construction • AHRI440certifiedandlabeled • Galvanizedsteelconstruction• 1/2"thickfiberglassinsulation• Integralfilterrackwith1"throwawayfilter• Riserslotknockouts• Supplyairknockouts

Decorator Front Panel• Stampedlouverreturnairgrille• Durablepowdercoatpaint• Quarter-turncamlockfasteners

Supply Air• Singleoutlet• Front,sideortopoutlets

Coils• Cooling-3or4rowchilledwater• Heating-1or2rowhotwater-reheatposition• 5totalrowsofcoolingandheatingcoilsmaximum• Highefficiencyaluminumfinsurfaceforoptimizingheat

transfer, pressure drop and carryover• Easilyremovableforservice• Manualairvents

Drain Pans• Doublewall,composite,anti-microbial• Doubleslopedtodrainconnection• Removable,extendedundertheentirecoilsection• 7/8"O.D.drainconnection• P-trapfactoryinstalled

Fan Assemblies• Forwardcurved,DWDIcentrifugaltypeblowers• 115volt,singlephase,threetapPSCmotors• Quickdisconnectmotorconnections• Easilyremovablefan/motordeckforservice

Electrical• ETLlistedforsafetycompliance• Electricalenclosurewithaccessdoorforfieldwiringter-

minations• Terminalblockforfieldconnections

Electric Heat• ETLlistedasanassemblyforsafetycompliance• Integralelectricheatassemblywithremovable

elements for easy service• Automaticresetprimaryandback-upsecondary

thermal limits• Singlepointpowerconnection

OPTIONAL FEATURES

Construction• Master/Slavearrangements• Foilfacedfiberglassinsulation• Elastomericclosedcellfoaminsulation• 1"pleatedfilter(MERV8)• Manualormotorizedoutsideairdamper• Blowershield

OPTIONAL FEATURES (continued)Decorator Front Panel• Recessingframe • FullfacedaluminumgrilleSupply Air• Doubledeflectiondischargegrille(s)• Doubleoutlets• Sightandsoundbafflesfordoubleoutletunits• OpposedbladedamperCoils• Automaticairvents• StainlesssteelcoilcasingsDrain Pans• Stainlesssteelconstructionwithexternalinsulation• RemovableforcleaningFan Assemblies• 208-230&277volt,singlephase,threetapPSCmotors• 115,208-230&277V,singlephase,threetap

EC motors• 115,208-230&277V,singlephase,variablespeed

EC motorsElectrical• SCRfanspeedcontroller• Silentsolidstatefanrelays• Toggledisconnectswitch• Condensateoverflowswitch(drainpan)• Mainfusing• UnitandremotemountedthreespeedfanswitchesElectric Heat• Silentrelay/contactors• Doorinterlockingdisconnectswitches• MainfusingPiping Packages• Factoryassembledandinstalled• 1/2"2-wayand3-waynormallyclosed,twoposition

electric motorized valves• Stainlesssteelbraidedhoses(threadedswivel

connections) for thermal expansion including isolation ballvalveswithmemorystop

• Fixedandadjustableflowcontroldevices• P/TportsandY-strainers• Modulatingcontrolvalves• High pressure close-off actuators (50 PSIG max)Thermostats• Analog,digitaldisplay,orprogrammable• Unitandwallmounted• 2and4-pipecontrolsequences• Automaticandmanualchangeover• Integralthreespeedfanswitches• ADAmountinglocationonfrontpanelorunitsidesRisers• Type-MorLcopperwithswagedconnections• 3/4"to3"diameters• Upto1-1/2"closedcellinsulation• Type-Mcoppercondensateriser• Riserextensions • Risercover• Shipinadvancerisers

8 ENVIRO-TEC


COILS, PHYSICAL DATA

NOTE:Capacityandstaticpressureswillbeaffectedforapplicationsabovesealevel.Toapplycorrectionfactors,multiplyfac-tor to desired coil capacity or fan curve data .

Example:VH03with3rowcoil,highspeedfanoperationat3000ft.abovesealevelandwith0.1IN.W.C.ESP.

Solution:UsingcorrectionfactorsfromAltitudeCorrectionchartfor3000ft.abovesealevel,datafromAHRIStandardRatingstableandfancurves. Total capacity = 12,500 BTUH ( .983) = 12,288 BTUH SensibleCapacity=8,000BTUH(.90)=7,200BTUH SP=.1(.90)=.09IN.W.C.

COILSENVIRO-TECoffershotwaterandchilledwatercoilsforspecificapplicationwithallVHSeriesfancoilunits.Stricton-siteinspectionbefore,during,andafterinstallationguaranteesthehighestqualityandperformanceavailable.

STANDARD FEATURES• Cooling-3or4rowchilledwater• Heating-1or2rowhotwater• 5totalrowsofcoolingandheatingcoilsmaximum• Highefficiencyaluminumfinsurfaceforoptimizingheattrans-

fer, pressure drop and carryover• Manualairvents

OPTIONAL FEATURES• Automaticairvents• Stainlesssteelcoilcasings

ENVIRO-TECoffersWeb-Select®,theindustry’sfirstweb-basedfancoilratingandselectionprogramforcompleteunit, coil and sound selection .

ALTITUDE CORRECTION FACTORS

ALTITUDE (FT.) 0 1000 2000 3000 4000 5000 6000 7000

AIR DENSITY (LB./FT.3) 0 .075 0 .0722 0 .0697 0 .0672 0 .0648 0 .0625 0 .0601 0 .0579

TOTAL CAPACITY 1 .000 0 .988 0 .986 0 .983 0 .981 0 .979 0 .977 0 .975

SENSIBLE CAPACITY 1 .000 0 .960 0 .930 0 .900 0 .860 0 .830 0 .800 0 .770

STATIC PRESSURE 1 .000 0 .960 0 .930 0 .900 0 .860 0 .830 0 .800 0 .770

ALTITUDE CORRECTION

FACE AREA, FREE AREA AND FILTER SIZES

UNIT SIZE

COIL FACE AREA

FILTER FACE AREA

ACTUAL FILTER SIZES

3 2 .00 [ .19] 2 .09 [ .20] 13.25X22.75x1"[338x581x25]4 2 .00 [ .19] 2 .09 [ .20] 13.25X22.75x1"[338x581x25]6 2 .72 [ .25] 2 .83 [ .27] 15.25X26.75x1"[389x683x25]8 2 .72 [ .25] 2 .83 [ .27] 15.25X26.75x1"[389x683x25]

10 4 .22 [ .39] 4 .32 [ .41] 20.25X30.75x1"[517x785x25]12 4 .22 [ .39] 4 .32 [ .41] 20.25X30.75x1"[517x785x25]

ENVIRO-TEC 9


PHYSICAL DATA

AHRI STANDARD RATINGS

NOTE:Basedon80°FDBand67°FWBEAT,45°FEWT,10°Ftemperaturerise,highfanspeed.MotortypeisPSCandmotorvoltageis115/1/60.Airflowunderdrycoilconditions.Allmodelstestedat0.0"externalstaticpressure.

UNIT WEIGHT DATA

NOTE:Unitweightdataisinpounds[kilograms].

MODEL / SIZE

COIL AIRFLOW CFM

(DRY FLOW)

COOLING CAPACITY WATER POWER INPUT

(WATTS)Rows FPI QT (BTUH) QS (BTUH) Flow Rate (GPM)

WPD ft-wg

VH 03 3 14 347 13,560 9,350 2 .7 7 .4 66 VH 04 3 14 442 16,700 11,580 3 .3 9 .5 118 VH 06 3 14 601 22,620 15,700 4 .5 9 .0 142 VH 08 3 14 800 27,760 19,610 5 .5 10 .6 247 VH 10 3 14 1006 37,470 26,030 7 .5 9 .1 279 VH 12 3 14 1238 43,120 30,410 8 .5 10 .0 474 VH 03 4 14 337 16,390 10,780 3 .3 12 .5 66 VH 04 4 14 427 20,250 13,400 4 .0 15 .0 118 VH 06 4 14 588 27,740 18,370 5 .5 14 .4 142 VH 08 4 14 780 34,420 23,150 6 .9 19 .4 247 VH 10 4 14 990 43,350 29,350 8 .7 7 .7 279 VH 12 4 14 1206 50,540 34,600 10 9 .1 474

COMPONENT UNIT SIZE3 4 6 8 10 12

VH BASE UNIT 218 [99] 218 [99] 235 [107] 235 [107] 277 [126] 277 [126]VHA/VHB

FIRE RATED WALL PLENUM 130 [59] 130 [59] 145 [66] 145 [66] 160 [73] 160 [73]

VHA/VHB NON FIRE RATED WALL PLENUM 78 [35] 78 [35] 87 [40] 87 [40] 96 [44] 96 [44]

(4) 2" RISERS & (1) 1" RISER (115" L & 3/4" INS) 100 [45] 100 [45] 100 [45] 100 [45] 100 [45] 100 [45]

TOTAL COIL ROWS

3 ROW - DRY 15 [7] 15 [7] 17 [8] 17 [8] 24 [11] 24 [11]3 ROW - WET 19 [9] 19 [9] 22[10] 22[10] 31 [14] 31 [14]4 ROW - DRY 18 [8] 18 [8] 21 [10] 21 [10] 29 [13] 29 [13]4 ROW - WET 23 [10] 23 [10] 27 [12] 27 [12] 38 [17] 38 [17]5 ROW - DRY 21 [10] 21 [10] 24 [11] 24 [11] 34 [15] 34 [15]5 ROW - WET 27 [12] 27 [12] 32 [15] 32 [15] 45 [21] 45 [21]

10 ENVIRO-TEC


ELECTRIC HEAT

STANDARD FEATURES• ETLlistedasanassembly for safety compliance• Singlepointpowerconnection• Mountedinpreheatposition• Automaticresetprimaryandback-up

secondary thermal limits• Internalwiringratedat105°C• Integralelectricheatassemblywith removableelementforeasyservice

• Stainlesssteelterminalsandhardware

OPTIONAL FEATURES• Silentsolidstaterelays• Manualresetsecondarythermalunits• Doorinterlockingdisconnectswitch• Mainfusing

USEFUL FORMULASkW* = CFM x ∆Tx1.085** 34131Ø AMPs = kWx1000 Volts* 1kW=3413BTU/H** CapacityatsealevelAltitude Considerations:Reduceby0.034foreach1000ft.ofaltitudeabovesealevel. Example:5000ft./1000ft.=5 5 x 0 .034 = 0 .17 1 .085 - 0 .17 = 0 .915

NOTES:1. ShadedareasoftheelectricheatselectionchartindicatekWandvoltageoptionsnotavailable.2. Availablevoltagesaresinglephase,60hertz.3. SizeheaterforLeavingAirTemperature(LAT)lessthan104°F.4. Silent,solidstateheaterrelayisavailableforheatercurrentslessthan18amps.5. AskyourrepresentativeaboutcontinuouslymodulatingelectricheatusingSSRandspecialcontroloptions.

ELECTRICAL CALCULATIONS INFORMATION1.Contactyourlocalrepresentativeformoreinformationonelectricalcalculations,includingFLA,MCA,andMOP.2.Non-FusedDoorInterlockDisconnectSwitchshallbesizedaccordingtoMCA.3.FusedDoorInterlockDisconnectSwitchandMainFusingshallbesizedaccordingtoMOP.

ELECTRIC HEAT SELECTION CHART (AMPS)

UNIT SIZE

MBH 3.4 6.8 10.2 13.7 17.1 20.5 23.9 27.3 30.7 34.1KW 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0

VOLTS AMPS

03115 8 .7 17 .4 26 .1208 4 .8 9 .6 14 .4230 4 .4 8 .7 13 .1277 3 .6 7 .2 10 .8

04115 8 .7 17 .4 26 .1 34 .8208 4 .8 9 .6 14 .4 19 .2230 4 .4 8 .7 13 .1 17 .4277 3 .6 7 .2 10 .8 14 .4

06115 8 .7 17 .4 26 .1 34 .8208 4 .8 9 .6 14 .4 19 .2 24 .1230 4 .4 8 .7 13 .1 17 .4 21 .8277 3 .6 7 .2 10 .8 14 .4 18 .1

08115 8 .7 17 .4 26 .1 34 .8208 4 .8 9 .6 14 .4 19 .2 24 .1 28 .9 33 .7 38 .5230 4 .4 8 .7 13 .1 17 .4 21 .8 26 .1 30 .5 34 .8277 3 .6 7 .2 10 .8 14 .4 18 .1 21 .7 25 .3 28 .9

10115 8 .7 17 .4 26 .1 34 .8208 4 .8 9 .6 14 .4 19 .2 24 .1 28 .9 33 .7 38 .5 43 .3230 4 .4 8 .7 13 .1 17 .4 21 .8 26 .1 30 .5 34 .8 39 .2 43 .5277 3 .6 7 .2 10 .8 14 .4 18 .1 21 .7 25 .3 28 .9 32 .5 36 .1

12115 8 .7 17 .4 26 .1 34 .8208 4 .8 9 .6 14 .4 19 .2 24 .1 28 .9 33 .7 38 .5 43 .3230 4 .4 8 .7 13 .1 17 .4 21 .8 26 .1 30 .5 34 .8 39 .2 43 .5277 3 .6 7 .2 10 .8 14 .4 18 .1 21 .7 25 .3 28 .9 32 .5 36 .1

ENVIRO-TEC 11


RISER SELECTION AND DATA

RISER APPLICATION AND SIZING

Technical information on heat transfer, fluid flow and pipe sizing can be found in theASHRAE FundamentalsHandbookandvariousothertechnicaldocumentsandpublications.Someofthefactorsaffectingriserapplicationandsizingarenoise,tubeerosionandeconomics.TheFrictionLossForRiserschart(nextpage)displaysrisertubediametersizesasafunctionofflow(GPM),frictionlossandwatervelocity.Formaximumriservelocityonpressuredropper100ft.,refertoASHRAE2001Fundamentals35.3Table6forRiserSizing.Risersizescanbeofasinglediameteronlowrisebuildings,orvaryingsizesonmediumtohighrisebuildings.Generally,risercop-pertype,size, lengthandinsulationthicknessaredeterminedbythe locationof thefancoilunit inthebuilding.ChilledwaterandhotwaterrisersareavailableinType-MorType-Lcopper,varyingdiametersfrom3/4"to3",andwith up to 1-1/2" thick closed cell foam insulation. Condensate risers areavailable inType-Mcopper, varyingdiametersfrom3/4"to11/4",andwith1/2"thickclosedcellfoaminsulation.

RISER EXPANSION

Generally,inmediumtohighrisebuildings,allowancemustbemadeforpipeexpansion.ModelVHhi-risefancoilunitsarefurnishedwithhoseswhichactasexpansionloopsintegraltotheunit.Thehosewillallowfor+/-1½"ofriserexpansionandcontraction.Additionalexpansioncompensationmustbemadeintherisersysteminthefieldwheremovement isexpectedtoexceedthefactoryallowances.TheAllowableRiserLengthsBetweenSystemExpansionLoopschart(nextpage)displaystheexpansioncharacteristicsofriserscomparedtowatertemperaturedifference.Technicalinformationonpipeexpansion,contractionandanchoringcanbefoundintheASHRAEHVACSystemsandEquipmentHandbookandvariousothertechnicaldocumentsandpublications.

12 ENVIRO-TEC


RISER SELECTION AND DATA

GENERAL FAN NOTES

1. Fancurvesonthefollowingpagedepictactualperformanceofeachmotortapwithoutanyaddi-tionalfanbalanceadjustment.Actualcapacitieswhichfallbeloweachcurvecanbeobtainedbyaddinganadjustmentdevice.

2. ENVIRO-TECfancoilunitsareequippedwithpermanentsplit-capacitor(PSC)motorswiththreeseparatetaps(High,MediumandLow)whichpro-videsvariablehorsepoweroutputs.Mostoften,size selections are conservative and actual CFM requirementsand/orexternalstaticpressurerequirementsarelowerthanthosespecified.Inthiscase,theunitfanmotorcanberunatlowormediumtap,substantiallyreducingtheoperatingcost of the unit .

3. Allfancurvesarefor115/1/60motorsandincludelossesforcabinet,returngrilles,electricheater,3or4rowcoilandclean1"throwawayfilter.Forothercoilconfigurations,adjustperformancecurvesbasedonpressurelossesforthecoilsusingWeb-Select® .

4 . See page 17 for fan motor electrical data .

ENVIRO-TEC 13


FAN PERFORMANCE CURVES, PSC

SIZE 03

0

0 .1

0 .2

0 .3

0 .4

0 .5

0 .6

0 50 100 150 200 250 300 350 400

SCFM

E.S.P. (IN.W.G.)

LOW MED

HIGH

4ROWCOIL3ROWCOIL

SIZE 04

0

0 .1

0 .2

0 .3

0 .4

0 .5

0 .6

0 .7

0 50 100 150 200 250 300 350 400 450 500 550

SCFM

E.S.P. (IN.W.G.)

LOW MED

HIGH

4ROWCOIL3ROWCOIL

SIZE 06

0

0 .1

0 .2

0 .3

0 .4

0 .5

0 .6

0 .7

0 50 100 150 200 250 300 350 400 450 500 550 600 650

SCFM

E.S.P. (IN.W.G.)

LOW

MED

HIGH

4ROWCOIL3ROWCOIL

SIZE 08

0 .0

0 .1

0 .2

0 .3

0 .4

0 .5

0 .6

0 .7

0 .8

0 .9

1 .0

0 100 200 300 400 500 600 700 800 900 1000

SCFM

E.S.P. (IN.W.G.)

LOW MED

HIGH

4ROWCOIL3ROWCOIL

SIZE 10

0

0 .1

0 .2

0 .3

0 .4

0 .5

0 .6

0 .7

0 .8

0 100 200 300 400 500 600 700 800 900 1000 1100SCFM

E.S.P. (IN.W.G.)

LOW MED

HIGH

4ROWCOIL3ROWCOIL

SIZE 12

0

0 .1

0 .2

0 .3

0 .4

0 .5

0 .6

0 .7

0 .8

0 .9

0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300

SCFM

E.S.P. (IN.W.G.)

LOW MED

HIGH

4ROWCOIL3ROWCOIL

14 ENVIRO-TEC


EC MOTOR OPTIONS

THE ENERGY EFFICIENT SOLUTION

ENVIRO-TECofferstwohighefficiencyalternativestothe PSC motor. These are brushless DC (BLDC)motors with permanent magnet rotors, commonlyreferred to as ECMs (electronically commutated motors.)ECmotorshavebeenusedformanyyearsinresidentialHVACunits,andhavenowbecomethenorm for high efficiency light commercial HVAC applica-tionsaswell.ENVIRO-TECofferstwodifferenttypesofECmotorinVHSeriesfancoilunits.WhileeachoftheseECmotorssignificantly increases the operating efficiency of ENVIRO-TEC fan coils, they also provide different controlandperformancecapabilities.Foreachmotor,fan speed control is accomplished through a micropro-cessorbasedcontrollerthatelectronicallycontrolsthespeedof themotor.Thesemotorsprovidepeakeffi-ciencyratingsbetween70&80%formostapplications.Thefirst,fullfeatured,ECmotorofferstwochoicesofmotor control: 1) Threespeed(useradjustable)operation.Eachof

thethreespeedsprovidesconstantairflow,andcanbeindependentlyadjustedinthefield.

2) Continuously variable speed operation, constantairflow. This is achieved via proportional controlfromaremote2–10VDCsignal.

The second EC motor offering provides Constant Torque operation . This motor is factory programmed for three separate fixed torque settings, corresponding to three speed, high efficiency operation . The three speedsarenotuseradjustable.However,eachofthesemotors is supplied with a high capacity or standardcapacityplugwhichcanbemanuallychanged in thefieldtoassistinbalancingthesystem.

ECM FEATURES AND BENEFITS

Ultra-High Motor & Controller Energy EfficiencyEC motors offer several advantages over PSC motors infanCoils,includingvariablespeed,constantCFMorconstant Torque operation, and significantly higher efficiency . Due to the Permanent magnet rotor and electronic commutation, the EC Motor maintains approximately75%efficiencyatallspeeds.Designer / Owner FlexibilityTheECMincorporatesballbearings in lieuofsleevebearingstypicallyutilizedwithaninductionmotor.Unlikeasleevebearingmotor,theECMdoesnothaveaminimumRPMrequirement forbearing lubrication.This allows it to operate over a much wider speedrange,andprovidesformaintenance–freeoperation.A reduced spare parts inventory is another plus .

Custom Applications —Programmable Fan OperationBoundless control opportunities arise for the EC motorduetothecontrollabilityofthepermanentmagnet rotor combined with pro-grammableelectroniccommutation.Various input signals can direct themotortobehaveinanappli-cation specific mode . For instance, multiple discrete fan capacitiescanbeachieved.In addition, the fan speed canbevariedinresponseto the space temperature load . By default, the fan is also programmed for a soft start . This means that the motor starts at a low speed and slowlyramps up to the required speed .Extended Motor LifeThe high motor efficiency provides a significantly reduced operating temperature compared to an induc-tion motor. The lower temperature increases thelongevity of all electrical components and therefore the lifeofthemotor.Theballbearingsdonotrequirelubri-cation and do not adversely impact the motor life . ExpectedECMlifewillbeconsiderablylongerthanaPSC motor, due to the reduced operating temperature andballbearingcomponents.ApplicationMostvariablespeedelectronicdevices, includingtheECMoperatewitharectifiedandfilteredACpower.Asa result of the power conditioning, the input currentdrawisnotsinusoidal;rather, thecurrent isdrawninpulsesatthepeaksoftheACvoltage.Thispulsatingcurrent includes high frequency components called harmonics . Harmonic currents circulate on the delta side of a Delta-Wye distribution transformer. On theWyesideofthetransformer,theseharmoniccurrentsare additive on the neutral conductor . A transformer usedinthistypeofapplicationmustbesizedtocarrytheoutputKVAthatwillincludetheKVAduetocirculat-ing currents.Careful designmust be providedwhenconnecting single-phase products to three-phase sys-temstoavoidpotentialproblemssuchasoverheatingof neutral wiring conductors, connectors, and trans-formers. In addition, design consideration must beprovidedtoaddressthedegradationofpowerqualitybythecreationofwaveshapedistortion.Insummary,properconsiderationmustbegiventothepowerdis-tribution transformer selection and ground neutralconductor design to accommodate the 3-phase neutral AMPsshownintheadjacenttable.Specificguidelinesareavailablefromthefactory.

ENVIRO-TEC 15


PERFORMANCE FAN CURVES, EC MOTORS

0

0.1

0.2

0.3

0.4

0.5

50 100 150 200 250 300 350 400 450

ESP(IN. W.C.)

SCFM

SIZE 03

0

0.1

0.2

0.3

0.4

0.5

0.6

200 250 300 350 400 450 500 550

ESP(IN. W.C.)

SCFM

SIZE 04

0

0.1

0.2

0.3

0.4

0.5

0.6

150 200 250 300 350 400 450 500 550 600 650 700

ESP(IN. W.C.)

SCFM

SIZE 06

GENERAL FAN NOTES, VARIABLE EC MOTORS

1 . Fan curves depict actual performance at the maximum speed of the EC motor . Depending upon external static pressure,flowratesareachievableanywherewithinthecurveboundarybyadjustingthemotorspeedthroughtheelectronicinterfacecontrolboard.

2.Airflowrateswillbeconstantforvaryingdegreesofexternalstaticpressurecausedbyfilterloadingorotherductsystemvariablesoncetheelectronicinterfacecontrolboardissettodesiredflowrate.

3.Fancurvescompensateforthepressurelossesoftheunitcabinet,coilrows,filterloadingandotheroptionalappurtances .

4.ECmotorsoperateusingarectifiedACpowersourcethatisconvertedtoanon-sinusoidalDCpowerwaveform.Harmonicdistortionmayoccurandcirculateonthepowerdistributionsystem.Circulatingharmoniccur-rentsarepotentiallyadditiveontheneutralconductorsof3-phase,4-wireWyedistributionsystems.Neutralconductorsmustbeengineeredtoaccountfortheadditionalcurrent(amperes)encountered.

5 . See page 17 for EC motor electrical data .

16 ENVIRO-TEC


PERFORMANCE FAN CURVES, EC MOTORS

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

725 775 825 875 925

ESP(IN. W.C.)

SCFM

SIZE 08

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

875 925 975 1025 1075 1125

ESP(IN. W.C.)

SCFM

SIZE 10

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

800 850 900 950 1000 1050 1100 1150 1200 1250

ESP(IN. W.C.)

SCFM

SIZE 12

ENVIRO-TEC 17


MOTOR, FAN AND SOUND DATA

MOTOR AND FAN DATA

SOUND DATA

NOTES:1. Motorelectricaldataisnameplateddata.Actualdatawillvarywithapplication.2. 230voltmotorisnameplatedfor208-230/1/60.Use230voltmotordatafor208voltapplications .

NOTES:1. SounddatatestedinaccordancewithAHRI350-2000.2. Soundlevelsareexpressedindecibels,dBRe:1x10-12watts.3. Total sound power level data based on Model VHC with fan CFM at corresponding motor tap with 115/1/60 volt motor,

4 row coil, 1" throwaway filter, double deflection discharge grille, 0.0" external static pressure and standard rated internal pressure losses .

UNIT SIZE FAN SPEED SCFMTOTAL SOUND POWER LEVEL

OCTAVE BAND / CENTER FREQUENCY (HZ)2/125 3/250 4/500 5/1000 6/2000 7/4000 8/8000

3High 356 59 52 49 44 34 29 27

Medium 279 56 49 46 40 29 24 23Low 212 51 45 41 34 22 20 18

4High 475 61 54 50 44 37 33 26

Medium 372 56 49 46 39 31 27 26Low 281 53 44 41 33 24 21 18

6High 601 68 58 55 49 44 40 33

Medium 505 62 53 51 45 39 34 29Low 385 57 49 47 40 32 27 23

8High 864 68 60 59 55 49 46 38

Medium 712 65 58 57 52 46 43 31Low 600 62 54 55 48 42 38 30

10High 985 70 65 62 61 51 48 44

Medium 802 68 62 59 54 49 45 41Low 625 63 58 56 50 44 40 35

12High 1224 73 70 68 64 58 55 47

Medium 1092 69 66 64 58 53 50 41Low 902 63 60 58 51 46 42 35

PSC ECM3 ECM FLA3-Phase Neutral Current

FLA3-Phase Neutral Current





HighMedium

LowHigh

MediumLowHigh

MediumLowHigh

MediumLowHigh

MediumLowHigh

MediumLow

2.6

1.3

0.9

0.6

1.0

0.9

0.5

0.5

0.3

0.8

1.0

0.6

0.5

4.8

3.0 4.8

2.9

1.5 2.6

2.6 4.5 2.6 4.51.94.8 8.3 5.0 8.7 2.8 4.82.0 3.0 4.812 1/4 (1) 1/3 (1) 1/3 (1) 1

8.3 5.0 8.7 2.810 1/5 (1) 1/3 (1) 1/3 (1) 1 4.8

4.9

2.7

4.54.8 8.3 5.0 8.7 2.8 4.8

2.6 4.5 2.6 4.54.8 3.0

2.6 4.5 1.7 2.9

08 1/6 (1) 1/3 (1) 1/3 (1) 1

8.3 2.3 4.0 2.8 4.8 1.706 1/15 (1) 1/3 (1) 1/4 (1) 1 4.8

2.6 4.5 2.6

4.5 1.5 2.64.8 8.3 2.0 3.5 2.8 4.8

1.7 2.6 4.5 0.9 1.6

04 1/25 (1) 1/3 (1) 1/4 (1) 1

8.3 1.3 2.3 2.8 4.8 1.00.303 1/35 (1) 1/3 (1) 1/4 (1) 1 4.8

2.6

Unit Size

Fan Speed

Motor HP (Qty)# of Fans

Amps @ 120/1/60 Amps @ 208-230/1/60 Amps @ 277/1/60

PSC

ECM3 ECM

PSC

ECM3 ECM

PSC

ECM3 ECM

18 ENVIRO-TEC


DIMENSIONAL DATAMODEL VHC - CONCEALED UNIT

NOTES:1 . All dimensions are inches [mm] . Metric values are soft conversion .2. Alldimensionsare±1/4[6mm].3. Tileringisinstalledonfrontofunitasshown,andmaybemovedtoleftorrightsideofunitinfield.4. Wiringfromelectricalentrypointtocontrolenclosureisfurnishedandinstalledbyothersinfield.5. Risersavailablefrom3/4"[19mm]to3"[76mm]diameterwith1/2"[13mm]thickinsulation,and3/4"[19mm]to21/2"[64mm]diameterwith

3/4"[19mm]thickinsulation.6. Riserlengthis120"[3048mm]max.,100"[2540mm]min.7. Backriserlocationshown.Seearrangementdrawingsforavailableunitconfigurations.8. Factorymountedrisersshown.Risersmayalsoshipinadvanceofunit.SeeShipInAdvanceRiserdrawingsfordetails.

ENVIRO-TEC 19


MODEL VHS - SLAVE UNIT

NOTES:1 . All dimensions are inches [mm] . Metric values are soft conversion .2. Alldimensionsare±1/4[6mm].3. Tileringisinstalledonfrontofunitasshown,andmaybemovedtoleftorrightsideofunitinfield.4. Wiringfromelectricalentrypointtocontrolenclosureisfurnishedandinstalledbyothersinfield.5. Allpipingandinsulationbetweenslaveunitandrisersisfurnishedandinstalledinthefieldbyothers.6. Backconnectionlocationshown.Seearrangementdrawingsforavailableunitconfigurations.7. Allcoilanddrainconnectionsare"retracted"andbracedinternallyforshipment.8. Coilconnectionsare5/8"[16mm]O.D.femalesweat.Drainp-trapisdesignedtoaccept7/8"[22mm]O.D.coppertube.9. Slaveunitsarefurnishedwithfactoryinstalledshutoffvalvesandfieldconnectiontubes,unlessmasterunitrisersareshippedinadvance.

DIMENSIONAL DATA

20 ENVIRO-TEC


DIMENSIONAL DATAMODEL VHX - EXPOSED CABINET

NOTES: 1 . All dimensions are inches [mm] . Metric values are soft conversion . 2. Alldimensionsare±1/4[6mm]. 3. Thermostatisshippedlooseandmaybeunitsurfacemountedorremotewallmounted. 4. Wiringfromelectricalentrypointtocontrolenclosureisfurnishedandinstalledbyothersinfield. 5. Risersavailablefrom3/4"[19mm]to3"[76mm]diameterwith1/2"[13mm]thickinsulation,and3/4"[19mm]to21/2"[64mm]diameterwith

3/4"[19mm]thickinsulation. 6. Riserlengthis120"[3048mm]max.,100"[2540mm]min. 7. Allunitsarebackriser,frontsinglesupply,ArrangementBF00only. 8. Factorymountedrisersshown.Risersmayalsoshipinadvanceofunit.SeeShipInAdvanceRiserdrawingsfordetails. 9. StandardcabinetfinishisPearlWhiteSatin.10. Floorandceilingtrimfurnishedandinstalledbyothers.

ENVIRO-TEC 21


DIMENSIONAL DATASHIP IN ADVANCE RISER ASSEMBLY

NOTES:1. Allrisersandvalvesareshippedwithprotectivecaps.Thesecapsshouldremaininplaceuntilinstallationoftheunit.2. Eachvalveissuppliedwithano-ringthatisbaggedandshippedlooseforfieldinstallationbyothers.3. Allrisersarefactorytested,andguaranteedtobeleakfreeattimeofshipment.4. Riserinformationshownshallreflectmatchingunitidentificationlabels.5. VHSSlaveunitswillhavemirrorimageorientationandwillbelabeledinunits.6 . Condensate p-trap and hose clamps ship installed in unit for field connections to drain riser .

22 ENVIRO-TEC


DIMENSIONAL DATAMODEL VHA/VHB - TANDEM UNITS (PAGE 1 OF 2)

NOTES: 1 . All dimensions are inches [mm] . Metric values are soft conversion . 2. Alldimensionsare±1/4[6mm]. 3. Thermostatmounting–Tileringisinstalledonfrontofunitasshownandmaybemovedtoleftorrightofunitasshownandmaybemoved

to left or right side of unit in field . 4. Wiringfromelectricalentrypointtocontrolenclosureisfurnishedandinstalledbyothersinfield. 5. Risersavailablefrom3/4"[19mm]to2-1/2"(64mm]diameterwith1/2"[13mm]or3/4"[19mm]thickinsulation. 6. Riserlengthis120"[2921mm]max,100"[2540mm]min. 7. NON-FIRERATEDunitshownwithtype-Xgypsumboardatbackofslaveunit.FIRERATEDunitshavetype-Xgypsumboardatbackof

bothslaveandmasterunits.FIRERATEDunitdesignhasbeentestedinaccordancewithUL1479-FireTestOfThroughPenetrationFireStops,andisapprovedtobeartheETLlistingmarkforThroughPenetrationFireStopAssemblies.

8. ForfurtherfireratinginformationrefertotheInstallationInstructions,drawing70-74-023. 9 . See page 2 of 2 for dimensions .10. RefertoarrangementdrawingsforavailableTandemMasterandTandemSlaveunitconfigurations.

ENVIRO-TEC 23


DIMENSIONAL DATAVHA/VHB - TANDEM UNITS CABINET DIMENSIONS (PAGE 2 OF 2)

TandemMasterandTandemSlaveModelsVHA/VHBshipcompletewithrisersenclosedinawallplenumwithonelayerof5/8"gypsumforsoundattenuation.Asanoption,TandemMasterandTandemSlaveunitmaybeorderedwithtwolayersof5/8"gypsumandfireblockingmaterialforaonehourfireratingperUL1479.

24 ENVIRO-TEC


DIMENSIONAL DATADOUBLE DEFLECTION ALUMINUM DISCHARGE GRILLE

Color is "Pearl White Satin".5. Standard finish is powder coat baked enamel.

7. Mounting hardware included.

2. All dimensions are ±1/4 [6mm].

DIMENSIONS - In [mm]

unit to prevent interference of frames. may require furring one side away from6. Installation of grilles on adjacent unit sides

and blades.4. Construction is roll formed aluminum frame

installation.3. Discharge grilles are shipped loose for field

are soft conversion.1. All dimensions are Inches [mm]. Metric values

NOTES:

GASKET

SEE NOTE 7MTG. HOLES

[78]3-1/16

TYP.[32]

1-1/4

[38]1-1/2

DAMPER OPTIONALOPPOSED BLADE

HEIGHTUNIT DISCHARGE

H =

WIDTHUNIT DISCHARGE

W =

TYP.[16]5/8

TYP.3/4 [19]

B

A

[6]1/4

VERTICAL HI-RISE &

TANDEM MASTER AND TANDEM

SLAVE SAME SIZE UNITS

TANDEM MASTER AND TANDEM

SLAVE UP SIZED UNITS

ENVIRO-TEC 25


DIMENSIONAL DATA

NOTES:1 . All dimensions are inches [mm] . Metric values are soft conversion .2. Alldimensionsare±1/4[6mm].3. Installedwallpanelsextendapproximately3/4"[19mm]fromfinishedwallsurface.4. Standardfinishispowdercoatbakedenamel.ColorisPearlWhiteSatin.5. Mountinghardwareisshippedlooseforfieldinstallation.6. ADAthermostat:actualinstalledheightisdeterminedbyunitinstallationmethodandmayvary.7. ADAthermostatisshippedlooseforfieldinstallationbyothers.8. Sizesshownarefor"up-sized"cabinetunitsusedinTandemMasterandSlavepairs.

STAMPED LOUVER FRONT RETURN AIR PANEL

26 ENVIRO-TEC


UNIT ARRANGEMENTARRANGEMENT DRAWING • VHC, VHM, VHA

NOTES: 1. Alldrawingssubjecttochangewithoutpriornotice. 2. Returnairandaccessarealwaysonfrontofunit. 3. Sight&Soundbaffleprovidedasrequired. 4. Sight & Sound baffle not available on units with top supply

outlet . 5. Opposedbladedamperisoptionalononesupplygrilleforunits

withdoublesupplyoutlets. 6. Thisdrawingappliestosingleandmasterunits. 7 . Fourth character indicates outside air location . 8. ModelVHCunitsshownabovewithoptionalriserchase.Riser

chasenotavailableonVHMunits.VHAunitsmustbematedto VHB units .

9. ModelVHXavailablewitharrangementBF00only.10. Forfieldconfiguredarrangements,specify0000whenordering.

AIRFLOW DIRECTION

ENVIRO-TEC 27


UNIT ARRANGEMENTMODEL VHM, VHA, VHC TANDEM MASTER AND

TANDEM SLAVE UNIT CONFIGURATION

TANDEM MASTER & SLAVE

TANDEM MASTER & SLAVE

NOTES:1. Alldrawingssubjecttochangewithoutpriornotice.2.Forotherpossiblecombinations,seepages26,27and28.3.Fireratedunitsshownnonfireratedisstandard.4.Sight&Soundbafflesprovidedasrequired.

28 ENVIRO-TEC


UNIT ARRANGEMENTOUTSIDE AIR INLET DESIGNATIONS

LOCATION DESIGNATIONS ARE TYPICAL FOR ALL FS MODELS.

UNIT SIDE DESIGNATIONS

**R L**L R

**B R**

LOCATIONS.2. THIS DRAWING SHOWS AVAILABLE RETURN AND OUTSIDE AIR INLET1. RETURN AIR AND ACCESS ARE ALWAYS ON FRONT OF UNIT.NOTES:

5. FSC UNIT WITH OPTIONAL RISER CHASE SHOWN. OUTSIDE AIR IN ARRANGEMENT CODE.

4. OUTSIDE AIR INLET LOCATION IS ALWAYS LAST CHARACTER RISER, SUPPLY, AND RETURN CONFIGURATION DETAILS.

3. SEE ARRANGEMENT DRAWINGS FOR COMPLETE UNIT

RIGHT RISER - LEFT O/A

BACK RISER - RIGHT O/A

B L

RIGHTTOP

BACK

LEFT

LEFT RISER - RIGHT O/A

BACK RISER - LEFT O/A

R = RIGHTL = LEFT

0 = NONE

DISCHARGE 2 LOCATION

FRONT

B F 0 R

F = FRONTT = TOPB = BACK

RISER LOCATION

DISCHARGE 1 LOCATION

OUTSIDE AIR LOCATION

O/A

O/A

4-3/4[121]

[114]

4-1/2

O/A

O/A

6" DIA.

RIGHT SIDE SIMILAR BUT OPPOSITE.LEFT SIDE OUTSIDE AIR SHOWN,

SEE NOTE 5

ENVIRO-TEC 29


GUIDE SPECIFICATIONS

GENERALFurnish and install ENVIRO-TEC VH Series Vertical Hi-RiseDirectDriveFanCoilUnitswhereindicatedontheplansandinthespecifications.Unitsshallbecom-pletelyfactoryassembled,testedandshippedasonepiece.Allunitsshallbecapableofmeetingorexceed-ing the scheduled capacities for cooling, heating and air delivery . All unit dimensions for each model and size shall be considered maximums. Units shall be ETLlistedincompliancewithUL/ANSIStandard1995,andbecertifiedascomplyingwiththelatesteditionofAHRIStandard 440 .

CONSTRUCTIONAll unit chassis shall be fabricated of heavy gaugegalvanized steel panels able tomeet 125 hour saltspray test per ASTM B-117 . All exterior panels shall beinsulatedwith1/2"thickinsulationwithamaximumkvalueof.24(BTU•in)/(hr•ft2•°F)andratedfora maximum air velocity of 5000 f .p .m . Insulation must meet all requirements of ASTM C1071 (including C665),UL181 forerosion,andcarrya25/50 ratingfor flame spread/smokedeveloped perASTME-84,UL723andNFPA90A.

Option:Forunitswithmultipleoutlets,includeaninsu-latedsheetmetalbaffleinsidethedischargeplenumtobreakthesightlinesbetweenthetwodischargeoutletsandtoattenuateroomnoisethatcouldbetransmittedthrough the openings .

Allunitpanelsshallhaveknockoutsforsupplyairopen-ings and riser slots to facilitate the field conversion of riser location and supply air grille location .

Option:Supplyairopeningknockoutsshallbefactorysealed and left in place during shipping and staging at thejobsite.

Allunitsshallhavedecoratorfrontpanelsfabricatedofnot less than 18 gauge galvannealed steel . The front panel shall include a stamped louver return air grille andbeattachedwithquarterturnquickopenfastenerstoallowforeasyremovalandaccessforservice.

All concealed units shall have a duct collar on the discharge .

Allexposedunitsshallhaveexteriorpanelsfabricatedofnot less than 18 gauge galvannealed steel . The front panel shallbeattachedwithquarterturnquickopenfastenerstoallowforeasyremovalandaccessforservice.

Option:Provideanarchitecturalgradedoubledeflec-tion aluminum discharge grille .

Option: Provide foil faced insulation in lieu of standard . Foil insulation shall meet or exceed the requirements

statedabove,and inadditionmeetASTMStandardsC-665andC-1136 forbiologicalgrowth in insulation.Insulationshallbelinedwithaluminumfoil,fiberglassscrim reinforcement, and 30 pound kraft paper lami-nated together with a flame resistant adhesive. Allexposededgesshallbesealed topreventany fibersfrom reaching the air stream .

Option: Provide Elastomeric Closed Cell Foam Insulation inlieuofstandard.InsulationshallconformtoUL181forerosionandNFPA90Aforfire,smokeandmelting,and comply with a 25/50 Flame Spread and SmokeDevelopedIndexperASTME-84orUL723.Additionally,insulationshallcomplywithAntimicrobialPerformanceRating of 0, no observed growth, per ASTM G-21.Polyethyleneinsulationisnotacceptable.

Option: Tandem Master and Tandem Slave units . Masterandslaveunitsshallbesuppliedjoinedtogeth-erbyanominalsix-inchwallthatcontainsthesupply,return and condensate risers. The cabinets of bothunits in the pair will be the same height and widthregardlessofcapacityandwillbethestandarddimen-sionoftheunitwiththegreatercapacity.

Theslaveunitwillhavea5/8"layeroftype-Xgypsumboardmechanicallyfastenedtotheunitwalladjacentto the risers .

Whereaonehourratingof thepartitionbetweentheunits is required, a second layer of type-X gypsumboardshallbemechanicallyfastenedtothemasterunitwalladjacenttotherisers.An18gaugesteelblowershieldshallbeprovidedforboththemasterandslaveunits.Pipingpenetrationsinthepartitionwallsshallbeprovidedwith fireblockingmaterial.TheunitshallbecETLlistedincompliancewithANSI/UL-1479StandardTest Method for Fire Tests of Through Penetration Fire Stops.A copy of theAuthorization toMark certifyingcompliancebyanationallyrecognizedtestinglabora-toryshallbeprovidedwiththeunitsubmittal.

PAINTED FINISHAllpaintedcabinetexteriorpanelsshallbefinishedwithaheatcuredanodicacrylicpowderpaintofthestandardfactory color .

SOUNDUnits shall have published sound power level datatestedinaccordancewithAHRIStandard350-2000.

FAN ASSEMBLYUnitfanshallbedynamicallybalanced,forwardcurved,DWDIcentrifugaltypeconstructedof18gaugegalva-nized steel for corrosion resistance.Motors shall behighefficiency,permanentlylubricatedsleevebearing,permanentsplit-capacitortypewithULandCSAlistedautomatic reset thermal overload protection and three

30 ENVIRO-TEC



separatehorsepowertaps.Singlespeedmotorsarenotacceptable.

Option:Provideablowershieldtocovertheentirefanassembly. The blower shield shall be tight fitting topreventairbypassandprohibitaccidentalcontactwiththe fanassembly.Units thatallowaccidental contactwith the fan assemblywith the decorator front panelremovedarenotacceptable.

The fan assembly shall be removed and servicedthrough the front and safety panels . The entire assem-bly shall be able to come out of the unit easily byremovingtwolocknutsandunpluggingthemotor.

Option: Provide an electronic fan speed controller (SCR) wiredtohighmotortapforaidinbalancingthefancapac-ity.Thespeedcontrollershallhaveaturndownstoptoprevent thepossibility of harming themotorbearings,and incorporate electrical noise suppression to minimize noiseontheincomingpowerlines.

Option: Devices used to energize and de-energize (switch) fan speedsmust be totally silent.Magnetic,mercury,and/orquietrelaysand/orcontactorsarenotacceptable.

COILSAll coolingandheatingcoilsshalloptimize rowsandfins per inch to meet the specified capacity . Coils shall have seamless copper tubes and shall bemechani-callyexpandedtoprovideanefficient,permanentbondbetween the tube and fin. Fins shall have high effi-ciency aluminum surface optimized for heat transfer, air pressure drop and carryover .

Allcoilsshallbehydrostaticallytestedat450PSIGairpressureunderwater,and rated foramaximum300PSIGworkingpressureat200°F.

Heatingcoilsshallbefurnishedinthereheatpositionas standard .

Allwatercoilsshallbeprovidedwithamanualairventfittingtoallowforcoilventing.

Option: Provide automatic air vents in lieu of manual air vents .

Option: Provide a motorized two-position coilbypass damper. Damper shall be sized such thatwhen it isopened,30%of the fanairflowcapacitywillbedrawnthroughthedamperopening,bypass-ing the cooling coil .

Option:Coilcasingshallbefabricatedfromstainlesssteel .

DRAIN PANSPrimary condensate drain pan shall be double wallcomposite and extend under the entire coil section . Drainpansshallbeofonepiececonstructionandbepositively sloped for condensate removal .

Drain pan shall carry no more than a 25/50 FlameSpreadandSmokeDevelopedRatingperASTME-84andUL723andanAntimicrobialperformanceratingof0,noobservedgrowth,perASTMG-21.

The P-Trap shall be easily removed and servicedthrough the front panel .

Option: Provide a removable primary drain pan toallowforinspectionandcleaning.Thedrainpanshallbeeasilyremovedthroughthefrontpanelwithoutdis-turbing the coils. Drain pan access that requiresremovalofcoilsisnotacceptable.

Option: Provide a primary drain pan constructed entirely of heavy gauge type stainless steel for supe-rior corrosion resistance . Stainless steel drain pans shallbeexternally insulatedandmeetorexceed therequirementsstatedabove.

FILTERSAllunitsshallbefurnishedwithaminimum1"nominalglassfiberthrowawayfilter.Filtersshallbetightfittingtopreventairbypass.Filtersshallbeeasilyremovablefromthereturnairopeningwiththefrontpanelremoved,withouttheneedfortools.

Option:Provideunitwith1"pleatedfilter(MERV6).

Option: Provideunitwith1"self-gasketingfiltercon-sisting entirely of synthetic media and frames . Filter shallbetightfittingtopreventairbypass.Filtershallbeeasilyremovablefromthereturnairopeningwiththefrontpanelremoved.Filterefficiencyshallbe40%at 1 .5 microns .

ELECTRICALUnitsshallbefurnishedwithsinglepointpowerconnec-tion.Provideanelectricaljunctionboxwithterminalstripfor motor and other electrical terminations . The factory mountedterminalwiringstripconsistsofamultipleposi-tionscrewterminalblocktofacilitatewiringterminationsfor the electric control valves and thermostats .

ELECTRIC HEATFurnishanelectricresistanceheatingassemblyasanintegralpartofthefancoilunit,withtheheatingcapac-ity, voltage and kilowatts scheduled. The heaterassemblyshallberatedforinstallationonthefancoilunitandbelocatedsoasnottoexposethefanassem-bly to excessive leaving air temperatures that couldaffect motor performance .

ENVIRO-TEC 31



Theheaterandunitassemblyshallbe listedforzeroclearanceandmeetallNECrequirements,andbeETLlistedwiththeunitasanassemblyincompliancewithUL/ANSIStandard1995.

AllheatingelementsshallbeopencoiltypeNi-Chromewiremountedinceramicinsulatorsandlocatedinaninsulated heavy gauge galvanized steel housing . All elementsshallterminateinamachinestakedstainlesssteelterminalsecuredwithstainlesssteelhardwareforcorrosion resistance. The element support bracketsshallbespacednogreater than3-1/2"oncenter.Allinternalwiringshallberatedfor105°Cminimum.

All heaters shall include overtemperature protection consisting of an automatic reset primary thermal limit andback-upsecondarythermallimit.Allheatersshallbesinglestage.

Option: Provide a manual reset secondary thermal limit .

All units with electric heat shall be providedwith anincoming line power distribution block, designated toaccept single point powerwiring capable of carrying125%ofthecalculatedloadcurrent.

Option: Devices used to energize and de-energize (switch)electricheatmustbetotallysilent.Magnetic,mercury,and/orquietrelaysand/orcontactorsarenotacceptable.

PIPING PACKAGESProvide a standard factory assembled valve pipingpackagetoconsistofa2or3-way,on/off,motorizedelectric control valve and two ball isolation valves.Control valves shall be piped normally closed to thecoil.Maximumenteringwatertemperatureonthecon-trol valve shall be 200°F, and maximum close-offpressure 25 PSIG . Maximum operating pressure shall be300PSIG.

Pipingpackagesshall includestainlesssteelbraidedhoses to allow for thermal expansion within the unitcabinet. The hose shall be EPDM inner lined andKevlar® reinforced,withstainlesssteelFNPTswivelsand/orfittings.Thehosesshallberatedforamaximum450PSIGworkingpressureat250°F,andshallconformtoNFPA90Aandcarrynomore thana25/50FlameSpreadandSmokeDevelopedRating,perASTME-84andUL723.

Option:Provide3-wirefloatingpointmodulatingcontrolvalve (fail-in-place) in lieu of standard 2-position control valvewithfactoryassembledvalvepipingpackage.

Option: Provide high pressure close-off actuators for 2-wayon/offcontrolvalves.Maximumclose-offpres-sureis50PSIG(1/2").

Option:Provideeitherafixedoradjustableflowcontroldeviceforeachpipingpackage.

Option: Provide pressure-temperature ports for each pipingpackage.

Pipingpackagesshallbecompletelyfactoryassembled,including interconnecting pipe, and mounted inside the unitinaserviceablelocationoverthecoilandprimarydrain pan .

RISERSFurnishchilledandhotwatersupplyandreturnrisersmountedtotheunit.RisersshallbeType-Mseamlesscoppertubeandincludeswagedconnectionsatthetopforconnectiontotheunitabove.Slipcouplingsarenotacceptable.

Option: Provide Type-L copper risers that meet orexceedtherequirementsstatedabove.

Risers shall be insulated with 1/2" closed cell foaminsulation covering the entire riser . Insulation shall conformtoNFPA90Aandcarrynomorethana25/50FlameSpreadandSmokeDevelopedRating,perASTME-84andUL723.

Option: Provide up to 1-1/2" thick closed cell foaminsulation that meets or exceeds the requirements statedabove.

Condensate drain risers shall be Type-M seamlesscoppertubeandmeettherequirementsstatedabove.

Option:Risersshallbefactoryfabricated,bundled,andtagged separate from the fan coil units, allowing forshipment and installation of risers prior to the fan coil units.TherisertagmustshowthecorrespondingFCUtag,floornumber,roomnumber,risernumber,CW,HW,and condensate pipe diameters. Refer to submittaldrawingonShipinAdvancerisers.

OUTSIDE AIR DAMPEROption: Provide a manual outside air damper withlockingmechanismintegraltotheunit.

Option: Provide a motorized outside air damper inte-graltotheunitandinterlockedwiththefanmotor.Thedamperactuatorshallbespringreturnclosed.

ENVIRO-TECisaregisteredtrademarkofJohnsonControls,Inc.intheUnitedStatesofAmericaandothercountries. Othertrademarksusedhereinmaybetrademarksorregisteredtrademarksofothercompanies.

Catalog: ET115 .26-EG5 (216) Supersedes ET115 .26-EG5 (415)©2016JohnsonControls,Inc.P.O.Box423,Milwaukee,WI53201PrintedinUSAwww.enviro-tec.com

Documents

VH Fan-Coil Units Hi-Rise, Vertical