BAC FXV User manual

RIGGING & ASSEMBLY INSTRUCTIONS
Crossflow Coil Products
FXV / FXV3
CXVB / CXVT

Crossflow coil products should be rigged and
assembled as outlined in this bulletin.
Theseproceduresshouldbethoroughlyreviewedpriortothe
actualriggingandassemblyoftheequipmenttoacquaint
allpersonnelwithprocedurestobefollowedandtoensure
thatallnecessaryequipmentwillbeavailablebeforehand.
Ifoutstandingcircumstancesrequireadeparturefromthe
proceduresoutlinedinthismanual,contactyourlocalBAC
Representativeforguidance.
Be sure to have a copy of the certified drawings available for reference. If you
do not have a copy of these drawings, or if you need additional information
about this unit, contact your local BAC Representative whose name and
telephone number are on a label adjacent to the access door. The model
number and serial number of the unit are also located in this area.

Table of Contents
RIGGING & ASSEMBLY INSTRUCTIONS » CROSSFLOW COIL PRODUCTS
1Introduction
3Safety
3Shipping
3Pre-rigging Checks
4Cold Weather Operation
4Location
4Warranties
2Unit Rigging & Assembly
4Rigging
5Section Assembly of Two-Piece Cells
6Section Assembly of Optional Three-Piece Cells
7Section Assembly of Four-Piece Cells
11 ENDURADRIVE®Fan System Installation
3Single Air Intake Unit Optional Accessories
12 Introduction
13 Motor Davit Assembly Installation
14 PCD Hood Assembly
15 Discharge Sound Attenuation Assembly (FXV Only)
16 Intake Sound Attenuation Assembly (FXV Only)
17 External Service Platform Installation
20 External Service Ladder Installation
21 Ladder Safety Cage Installation
22 Internal Platform Ladder Installation
22 Internal Ladder Installation
23 Door Platform

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2
CROSSFLOW COIL PRODUCTS
Introduction
1
Safety
Adequateprecautionsappropriatefortheinstallationandlocationoftheseproductsshould
betakentosafeguardtheequipmentandthepremisesfromdamageandthepublicfrom
possibleinjury.The procedures listed in this manual must be thoroughly reviewed prior to
rigging and assembly. Read all warnings, cautions, and notes detailed in the margins.
Whenthefanspeedoftheunitistobechangedfromthefactorysetspeed,includingthe
useofavariablespeeddevice,stepsmustbetakentoavoidoperatingatornearthefan’s
“criticalspeed”whichcouldresultinfanfailureandpossibleinjuryordamage.Consult
withyourlocalBACRepresentativeonanysuchapplications.
Shipping
FXV,FXV3,CXVB,andCXVTunitsarefactory-assembledtoensureuniformqualitywith
minimumeldassembly.Singleairintakemodelsshipintwosectionspercell(lowerand
upper).Dualairintakemodelsshipinfoursectionspercell(onelowerandthreeupper:
eachcoilsectionshipsseparately)tominimizeriggingandfreightcosts.Contactyourlocal
BACRepresentativeformoreinformation.Forthedimensionsandweightsofaspecicunit
orsection,refertothecertieddrawings.
Pre-Rigging Checks
Whentheunitisdeliveredtothejobsite,itshouldbecheckedthoroughlytoensureall
requireditemshavebeenreceivedandarefreeofanyshippingdamagepriortosigningthe
billoflading.
The following parts should be inspected:
SheavesandBelts
Bearings
BearingSupports
FanMotor(s)
FanGuard(s)
Fan(s)andFanShaft(s)
FloatValveAssembly(s)
WaterDistributionSystem
CoilSurface
ColdWaterBasinAccessories
InteriorSurfaces
ExteriorSurfaces
Louvers/CombinedInletShields
SprayWaterPumps
MatingSurfacesBetweenSections/
Modules
MiscellaneousItems:Allbolts,
nuts,washers,andsealertape
requiredtoassemblesectionsor
componentpartsarefurnishedby
BACandshippedwiththeunit.
Achecklistinsidetheenvelope
attachedtothesideoftheunit
marked“Contractor’sInstallation
Instructions”indicateswhat
miscellaneouspartsareincluded
withtheshipmentandwherethey
arepacked.
WARNING: Failure to use lifting
provisions can result in a dropped
load causing severe injury, death,
and/or property damage. Lifts
must be performed by qualified
riggers following BAC published
Rigging Instructions, and generally
accepted lifting practices. The
use of a supplemental safety
sling may also be required if the
lift circumstances warrant its
use, as determined by the rigging
contractor.
CAUTION: Only personnel qualified
to do so should undertake
operation, maintenance and repair
of this equipment. Proper care,
procedures and tools must be used
in handling, lifting, installing,
operating, maintaining and
repairing this equipment to prevent
personal injury and/or property
damage.

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3
Unit Weights
Beforerigginganyunit,theweightofeachsectionshouldbeveriedfromtheunitcertied
drawing.Unitprintweightsincludethenalassembledunitwithallaccessories.Accessory
weights(foundontherespectivedrawing)canbedeductedfromthetotalweight.
Anchoring
Seven-eighthsinch(7/8”)diameterholesareprovidedinthebottomangeofthebasin
sectionforboltingtheunittothesupportbeams.Refertothesuggestedsupportdrawing
includedinthesubmittalforlocationandquantityofthemountingholes.The unit must
be level for proper operation.Anchorboltsmustbeprovidedbyothers.TheIBCratingis
onlycertiedwithstandardanchoragelocations.Usingalternateanchoragelocationsor
alternatesteelsupportswillvoidanyIBCwindorseismicratings.ContactyourlocalBAC
Representativefordetails.
Cold Weather Operation
Theseproductsmustbeprotectedbymechanicalandoperationalmethodsagainstdamage
and/orreducedeffectivenesswheneveraunitisoperatedinbelowfreezingambient
conditions.PleaserefertotheCrossflow Coil Product Operation and Maintenance Manual
onwww.BaltimoreAircoil.com,orcontactyourlocalBACRepresentativeforrecommended
coldweatheroperationstrategies.
Location
Allevaporativecoolingequipmentmustbelocatedtoensureanadequatesupplyoffresh
airtotheunitairintakes.Whenunitsarelocatedadjacenttowallsorinenclosures,
caremustbetakentoensurethewarm,saturated,dischargeairisnotdeectedand
recirculatedbacktotheairintakes.
Eachunitshouldbelocatedandpositionedtopreventtheintroductionofdischarge
airintotheventilationsystemofanybuilding.FordetailedrecommendationsonBAC
equipmentlayout,seeourwebsiteatwww.BaltimoreAircoil.comorcontactyourlocalBAC
Representative.
Warranties
PleaserefertotheLimitationofWarranties(locatedinthesubmittalpackage)applicableto
andineffectatthetimeofthesale/purchaseoftheseproducts.
Unit Operation
Priortostart-upandunitoperation,refertotheCrossflow Coil Product Operation &
Maintenance Manual shippedwiththeunitandalsoavailableatwww.BaltimoreAircoil.com
Introduction
Safety
Shipping
Pre-Rigging Checks
Unit Weights
Anchoring
Cold Weather Operation
Location
Warranties
ATTENTION: Before an actual lift
is undertaken, ensure no water,
snow, ice, or debris has collected
in the basin or elsewhere in the
unit. Such accumulations will add
substantially to the equipment’s
lifting weight.
NOTE: Each unit must be located
and positioned to prevent the
introduction of discharge air
into the ventilation systems of
the building on which the unit is
located and of adjacent buildings.

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4
Rigging
RefertoTables 1, 2,and3 andFigures 1,6,and7foreachsection’srequiredminimum
spreaderbarlengthW1andW2(ifapplicable)andtherecommendedminimumvertical
dimension“H”.RefertoFigures 1,6,and7fordimensionreference.
Failuretouseliftingprovisionscanresultinadroppedloadcausingsevereinjury,death,
and/orpropertydamage.LiftsmustbeperformedbyqualiedriggersfollowingBAC
publishedRiggingInstructions,andgenerallyacceptedliftingpractices.Theuseofa
supplementalsafetyslingmayalsoberequirediftheliftcircumstanceswarrantitsuse,as
determinedbytheriggingcontractor.
NOTE: For weight information, refer
to the submittal drawing package.
Table 1. Minimum Vertical Dimension and Spreader Bar Length for Single Air Intake FXV and CXVB Units
Model Number Lower Section Upper Section
FXV CXVB H W1 W2 H W1 W2
FXV-0806x-x-x CXVB-x-0806-x 3'-6" 8'-6" 4'-0" 3'-1" 8'-6" 3'-2"
FXV-0809x-x-x CXVB-x-0809-x 4'-4" 8'-6" 4'-0" 3'-1" 8'-6" 3'-2"
FXV-0812x-x-x CXVB-x-0812-x 4'-4" 8'-6" 4'-0" 5'-3" 8'-6" 3'-2"
FXV-0818x-x-x CXVB-x-0818-x 5'-3" 8'-6" 4'-0" 8'-2" 8'-6" 3'-2"
FXV-1212x-x-x CXVB-x-1212-x 4'-4" 11'-10" 5'-3" 5'-3" 11'-10" 4'-2"
FXV-1218x-x-x CXVB-x-1218-x 5'-3" 11'-10" 5'-3" 8'-2" 11'-10" 4'-2"
NOTE: All single-cell and multi-cell
units must be rigged one section
at a time.
CROSSFLOW COIL PRODUCTS
Unit Rigging & Assembly
2
Figure 1a. Lower Section Lift
Section Assembly of Two-Piece Cells
Figure 1b. Upper Section Lift
WARNING: Failure to use lifting
provisions can result in a dropped
load causing severe injury, death,
and/or property damage. Lifts
must be performed by qualified
riggers following BAC published
Rigging Instructions, and generally
accepted lifting practices. The
use of a supplemental safety
sling may also be required if the
lift circumstances warrant its
use, as determined by the rigging
contractor.

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5
Unit Rigging & Assembly
Rigging
Section Assembly of Two-Piece
Cells
Two-Piece Cell Assembly Instructions:
1. Removeanyaccessoriesshippedinthecoldwaterbasin.
2. Positionthelowersectionontheunitsupportsandboltinplace.
3. Wipeanymoistureanddirtfromtheperimetermatingangesofthelowersection.
4. Afterthelowersectionoftheunitisinplace,retracttheliftingears(whereapplicable)
insidetheunittoavoidinterferencewhentheuppersectionoftheunitispositioned
asillustratedinFigure 2.
5. Installatbutylsealertape(BACpart#554000)suppliedwiththeunit,as
illustratedinFigure 3,onthematingangesofthelowersectioninacontinuousline.
Ateachcorner,allow1”overlap.
6. Beforeloweringtheuppersectionontothelowersection,besuretolineupthebolt
holesusingdriftpinsasillustratedinFigure 4(nofewerthanoneholeateachedge).
Guidetheuppersectionontothelowersectionstartingwithaboltholeatone
cornerandfollowingdowntheange.
7. Securetheuppersectioninplaceusingboltssuppliedwiththeunittoensureleak-
freeoperation(Figure 5).
NOTE: All piping must be restrained
to ensure no vertical or horizontal
movement. All piping and supports
are to be furnished by others.
Piping must be independently
supported, not from the unit. Refer
to the certified drawing for details
on the connection size, etc.
NOTE: IBC Rating is void if section
assembly is not performed as
described in this manual.
Figure 4. Drift Pin Alignment
Figure 3. Assembly of Two-Piece Unit
Figure 5. Typical Bolting
Figure 2. Lifting Ears
LiftingEarsin
RaisedPosition
LiftingEar
Retracted
3/8”Bolt
FlatButyl
Sealer
Tape
Lock
Washer,
Flatwasher
andNut
Flatwasher
Figure 1b. Upper Section Lift
.

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6
Section Assembly of Optional Three-Piece Cells
Table 2. Minimum Vertical Dimension and Spreader Bar Length for Optional Three-Piece Lift for Single Air Intake FXV and CXVB Units
Model Number Lower Section Plenum Section Coil Section
FXV CXVB H W1 W2 H W3 H W4
FXV-0806x-x-x CXVB-x-0806-x 3'-6" 8'-6" 4'-0" 3'-1" 4'-11" 3'-1" 3'-5"
FXV-0809x-x-x CXVB-x-0809-x 4'-4" 8'-6" 4'-0" 3'-1" 4'-11" 3'-1" 3'-5"
FXV-0812x-x-x CXVB-x-0812-x 4'-4" 8'-6" 4'-0" 5'-3" 4'-11" 5'-3" 3'-5"
FXV-0818x-x-x CXVB-x-0818-x 5'-3" 8'-6" 4'-0" 8'-2" 4'-11" 8'-2" 3'-5"
FXV-1212x-x-x CXVB-x-1212-x 4'-4" 11'-10" 5'-3" 5-'3" 6'-1" 5-'3" 5'-2"
FXV-1218x-x-x CXVB-x-1218-x 5'-3" 11'-10" 5'-3" 8'-2" 6'-1" 8'-2" 5'-2"
W1
H
W2
W1
H
W2
Figure 6a. Coil Section Lift Figure 6b. Plenum Section Lift
NOTE: For the lower section, see
Figure 1a on page 4.
WARNING: Failure to use lifting
provisions can result in a dropped
load causing severe injury, death,
and/or property damage. Lifts
must be performed by qualified
riggers following BAC published
Rigging Instructions, and generally
accepted lifting practices. The
use of a supplemental safety
sling may also be required if the
lift circumstances warrant its
use, as determined by the rigging
contractor.

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7
Three-Piece Cell Assembly Instructions:
1. Removeanyaccessoriesshippedinthecoldwaterbasin.
2. Positionthelowersectionontheunitsupportsandboltinplace(seeFigure 1a on
page 4).
3. Wipeanymoistureanddirtfromtheperimetermatingangesofthelowersection.
4. Afterthelowersectionoftheunitisinplace,retracttheliftingears(where
applicable)insidetheunitasillustratedinFigure 2on page 5 toavoidinterference
whenthecoilandplenumsectionsoftheunitarepositioned.
5. Installbutylsealertape(BACpart#554000)suppliedwiththeunit,asillustrated
inFigure 3,onthematingangesofthelowersectioninacontinuousline.Ateach
corner,allowa1”overlap.
6. Beforeliftingthecoilsection,ensurethatthethree-pieceriggingkitisproperly
installedontothecoilmodule.Refertothe3PieceLiftKitInstructionsincludedin
theCustomerInformationPacketshippedwiththeunit.
7. Beforeloweringthecoilsectionontothelowersection,besuretolineupthebolt
holesusingdriftpinsasillustratedin Figure 4 onpage 5(nofewerthanoneholeat
eachedge).Guidethecoilsectionontothelowersectionstartingwithaboltholeat
onecornerandfollowingdowntheange.
8. Securethecoilsectioninplaceusingboltssuppliedwiththeunittoensureleak-free
operation(Figure 5 onpage 5).
9. Applyfoamtape(BACpart#270567)tothecoilsectionangesthatmatewiththe
plenumsection(Figure 6a).
10. Removethethree-pieceriggingkitfromthecoilmoduleandinstallitontheplenum
section.
11. Beforeloweringtheplenumsectionontothelowersection,besuretolineupthebolt
holesusingdriftpinsasillustratedinFigure 4(nofewerthanoneholeateachedge).
Guidetheplenumsectionontothelowersectionstartingwithaboltholeatone
cornerandfollowingdowntheange.
12. Securetheplenumsectioninplaceandattachtocoilsectionusingboltssupplied
withtheunittoensureleak-freeoperation(Figure 5).
13. Removethethree-pieceriggingkitfromtheplenumsection.
Section Assembly of Four-Piece Cells (FXV3 and CXVT)
Table 3. Minimum Vertical Dimension and Spreader Bar Length for Dual Air Intake FXV and CXVT Units
Model Number
Lower Section Plenum Section Coil Section
H W1 H W1 H W1
FXV3-1224-xxx 20’ 12’ 20' 12’ 16’ 12’
FXV3-1426-xxx 20' 14’ 22' 14’ 16’ 14’
CXVT-x-1224-x, XECXVT-1224-x, CXVT-x-2424-x,
XECXVT-2424-x 20’ 12’ 20' 12’ 16’ 12’
CXVT-x-1426-x, XECXVT-1426-x, CXVT-x-2826-x,
XECXVT-2826-x 20' 14’ 22' 14’ 16’ 14’
Unit Rigging & Assembly
Section Assembly of Optional
Three-Piece Cells
Section Assembly of Four-
Piece Cells
WARNING: Failure to use lifting
provisions can result in a dropped
load causing severe injury, death,
and/or property damage. Lifts
must be performed by qualified
riggers following BAC published
Rigging Instructions, and generally
accepted lifting practices. The
use of a supplemental safety
sling may also be required if the
lift circumstances warrant its
use, as determined by the rigging
contractor.

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8
Figure 7c. Lower Section Lift
W1
(MIN)
H
Safety
Slings
Spreader
Bar
Lifting Cable
Figure 7a. Plenum Module Lift
Plenum Module
Safety
Slings
W1
(MIN)
Spreader Bar
Lifting Cable
Safety
Slings
Coil Module
Spreader Bar
Lifting Cable
W1
(MIN)
Figure 8. Lower Section Sealing Detail
SpreaderBar
LiftingCable
Spreader
Bar
LiftingCable
Plenum Module
Coil Module
Safety
Slings
Safety
Slings
W1
(MIN)
W1
(MIN)
PerimeterFlange
Seals
PlenumStepSeal
NOTE: All single-cell and multi-cell
units must be rigged one section
at a time.
Dual Air Intake Four Piece Cell Assembly Instructions:
1. Removeanyaccessoriesshippedinthecoldwaterbasin.
2. Positionthelowersectionontheunitsupportsandboltinplace.
3. Wipemoistureanddirtfromtheperimeterangeandplenumstepasshownin
Figure 8.
4. Applyatbutylsealertape(BACpart#554000)tocriticalsealareasshownin
Figure 9.Applya2”x2”pieceofatbutylsealertapetothecornerriggingguidesas
showninFigure 10.Applyatbutylsealertapeacrosstheplenumstepasshownin
Figure 11.
5. Applyatbutylsealertapearoundtheentireperimeterofthelowersection.Align
thetapeontheperimeterangeasshowninFigure 12.SeeFigures 10and11for
criticalsealingareas.Allow1”overlaptapeattheselocations.
Figure 7b. Coil Module Lift