97-1188C

Revision C ECO 99-1411 December 1999© As of date shown above The Marley Cooling Tower Co. unpublished-all rights reserved under the copyright laws.

The Marley Cooling Tower Company7401 W. 129th Street, Overland Park Kansas 66213

(913) 664-7400

97-1188CPrinted in U.S.A.

Assembly Manual(for the following tower models)

NC1200NC2200NC3200NC4200NC5200NC6200NC7200NCA200NCB200

NC SERIES

K/D Assembly ManualNC Series

Manual 97-1188C

(This page intentionally left blank)

WARNINGThe location and orientation of the cooling tower can affect the safety of

those responsible for installing, servicing or repairing the cooling tower. SinceMarley does not dictate or determine where the tower is located or how it isoriented, Marley is not responsible for addressing the safety issues that areaffected by the tower�s location or orientation. The following safety issues shouldbe considered by those responsible for designing the tower installation. Failureto consider and address these issues may result in substantial personal injury ordeath to those involved in installing, servicing or repairing the cooling tower.

* Access to and from the fan deck.

* Access to and from maintenance access doors.

* Access for cleaning and other service.

* Potential access problems due to obstructions surrounding the tower.

* The possible need for handrails around the fan deck.

* The possible need for ladders (either portable or permanent) to gainaccess to the fan deck or maintenance access doors.

* The possible need for safety cages around ladders.

These are only some of the safety issues that may arise in the designprocess. Marley strongly recommends that you consult a safety engineerto be sure that all safety considerations have been addressed.

Marley offers optional equipment that may assist you in addressing some ofthese safety issues. Contact your Marley representative for information on theseoptional items.

CONFIDENTIAL- The contents of this document are confidential and constitute the exclusiveproperty of the Marley Cooling Tower company and is intended for use in the construction(contractor) and maintenance (owner) of this cooling tower. This document and it�s contents maynot be made public in any manner, distributed or loaned to others, or reproduced or copied eitherin whole or part without prior written consent of The Marley Company.


NC SERIES CONTENTS

97-1188C

Getting Started color codeABOUT THIS MANUAL...................................................................................................................... iMEASUREMENT SYSTEM .............................................................................................................. iiTOOLS AND SUPPLIES ................................................................................................................... iiPVC FILL STORAGE ........................................................................................................................ iiJOINT SEALING INSTRUCTIONS ................................................................................................... iiiA FEW WORDS ABOUT FASTENERS ............................................................................................ vWHO TO CALL ................................................................................................................................ vi

Tower AssemblyCOLLECTION BASIN ................................................................................ blue ........................... 1-1COLUMNS .............................................................................................. yellow ........................... 2-1ENDPLATES ........................................................................................... yellow ........................... 2-2TORQUE TUBE ...................................................................................... yellow ........................... 2-3BRACING ................................................................................................ yellow ........................... 2-5LOUVER COLUMNS .............................................................................. yellow ......................... 2-10TOP GIRT ............................................................................................... yellow ......................... 2-11DISTRIBUTION BASIN ................................................................................ red ........................... 3-1FAN DECK ................................................................................................white ........................... 4-1CASING .................................................................................................. yellow ........................... 5-1FILL .......................................................................................................... green ........................... 6-1ELIMINATOR PACKS .............................................................................. green ......................... 6-15TIE-RODS ............................................................................................... yellow ........................... 7-1LOWER FAN CYLINDER..........................................................................white ........................... 7-2MECHANICAL EQUIPMENT ......................................................................................................... 8-1GEAREDUCER .............................................................................................................................. 8-4MOTOR .......................................................................................................................................... 8-9DRIVE LINE ................................................................................................................................. 8-16FAN INSTALLATION & ADJUSTMENT ....................................................................................... 8-18

MiscellaneousINLET PIPING & FLUME ..........................................................................white ........................... 9-1DISTRIBUTION BASIN COVERS .............................................................white ........................... 9-6UPPER FAN CYLINDER & FAN GUARD .................................................white ........................... 9-8ACCESS DOOR ...................................................................................... yellow ........................... 9-9DECALS ....................................................................................................................................... 9-10

Optional EquipmentOUTLET PIPING .......................................................................................................................... 10-1FLOAT VALVE ............................................................................................................................. 11-1

Find Number Index .................................................................................................. 12-1

Note: Optional equipment not listed above is installed using separate installation drawings and bills ofmaterial. These documents are located within the literature package and should be reviewed prior tostarting assembly. Optional equipment may affect assembly sequence.


i97-1188C

NC SERIES GETTING STARTED

ABOUT THIS MANUALTo obtain maximum efficiency, it is strongly recommended that this entire manual be read before

starting assembly. This assembly manual illustrates a typical field assembly sequence of a basictower. Some of the more commonly used options are also included. Refer to separate installationdrawings for installation of special options and additional optional equipment. Review all manuals,drawings and bills of material prior to assembly. These documents are located in a Literature Kitpacked with the tower. Contact Marley sales office if questions arise.

All steel parts are tagged for identification, as shown below. Parts that have been shop modified,per contract, will have a separate tag affixed to the part adjacent to the tag that defines the Findnumber.

Find Number: This is a three digit alpha/numeric number that ties everything together. Usedthroughout this manual, in the text, it's the number in bold type M35, in the Figures, it's the numberwithin the circle. It is also the first column in the BILL OF MATERIAL. In the bill of material, all towercomponents are listed in numerical order by this number.

Item Number: This number is used by Marley to manufacture, modify and inventory thecomponents of your cooling tower. Give these numbers to your Marley people if an item is missingor a replacement item is required.

Drawing Number: (Reference only) This is the number of the drawing used to fabricate or modifythis item.

Description: (Reference only) All steel parts begin with SHT or ASSY followed by the size ofthe sheet used to fabricate the item or a description of the assembly. Your tower may have a fewfiberglass items which begin GRP.

Stainless Steel: This indicates when an item has been made from stainless steel. If the itemis made from the standard galvanized material this will not be printed on the tag.

Color Code: To help group parts together that are assembled in similar areas of the tower, manyof the tower components are tagged with a colored stick-on dot. Reference the table of contents ofthis manual for the coding of the various tower components.

Bills of material (BOM) are separate from drawings and this manual. At the top of each bill thereis a Drawing Number, cell number and the drawing description which indicates if the items on that billwill be installed per this assembly manual or per a special installation drawing. There will be a BOMfor each cell. The find number, item number, description and quantity of items are all cross referencedon the bill of material. If a number is missing or hard to read, check the illustrations in this assemblymanual first and then the bill of material to see if you can find it. As the tower is prepared for assembly,the quantities of each item should be checked against the bill of material. If anything is missing ordamaged tell your Marley people as soon as possible. Use the orientation drawings (Sales drawings)to define the location of parts in each cell. The BOM indicates the Find Number and the contractmodifications made for specific items to be located in the indicated cell.

Stainless Steel

Description

Item Number

Find Number

Drawing Number

M35Code used in manufacturing process

ii 97-1188C

NC SERIESGETTING STARTED

MEASUREMENT SYSTEMThis manual uses both, the English System and the Système International d'Unitès (S.I.)

systems of measurement. Fasteners are denoted and supplied in conformance with theEnglish System.

TOOLS AND SUPPLIES·HOIST. 2500 pound (1140kg) capacity. For hoisting of motor and Geareducer.

·1/2" electric drill and bit set.

·Socket wrench set. You will be using 9/16" sockets a lot so it�s a good idea to have morethan one.

·Combination wrenches. Mainly 9/16" up to 1 1/8". Adjustable wrenches are OK but notrecommended.

·Screwdrivers.

·Torque wrench. 150 ft-lb (203 N-m) capacity

·Caulking guns. Required for application of sealant.

·Pipe wrenches.

·Drift pins (alignment tools). These are extremely important to help line up all the holes. Youshould have more than one.

·Allen wrenches.

·Protractor level. For setting fan blade pitch.

·Dial Indicator kit. Marley Item No. 115311M. For drive shaft alignment. Needed for motoroutside airstream option only.

·Scaffolding, portable stairs or other means of temporary access and support.

·Electric impact wrench (or air). Optional, really makes the job go fast. You can get by withoutone but if you can get one you should.

�Wear protective clothing, gloves, nonslip footwear, hard hat and safety glasses. Coolingtowers are constructed of steel and could have burrs that can cause cuts. The surface ofsteel material may be slick. Protection from thrown or falling objects should be used at alltimes around a construction site.

�ACETONE solvent. About a gallon (4 liters) and plenty of clean cotton rags.

PVC FILL STORAGEStacked and nested fill sheets can be stored uncovered outdoors in winter, spring or fall

for up to 4 weeks. In hot summer conditions it should not be left out uncovered.

iii97-1188C


JOINT SEALING INSTRUCTIONS

Surface preparation instructions:The following information covering surface preparation applies to all sealed joints whether sealer

Z11 or strip sealer Z12 or Z13 is being used. Years of experience has shown the instructions onsurface preparation and sealing details do result in watertight joints. Inadequate attention to thesedetails will result in joints that leak.

Do not apply either sealer if temperature is below 40º Fahrenheit (5º Celsius).All flanges are to be straight. Rework kinks or bends that exist. Clean surfaces being sealed with

acetone. If cloth is used, it must always be clean and dry. Exercise caution in using solvents,always read labels and instructions. Care should be taken not to wipe dirt or oil onto the cleanedsurface from adjacent uncleaned area. Mating surfaces to be sealed must be kept clean and dry priorto assembly. No water, grease or dirt should contaminate cleaned area. Note that stainless steelrequires a larger area to be cleaned because oil will recontaminate surfaces quickly. Oil will migratethrough punched holes and around sheared edges.

Application instructions for Sealer Z11 (Type A, B & C seals):Sealer Z11 comes in a 1/12th gallon (315ml) cartridge and is applied using a standard caulking

gun. Apply sealer to the unassembled parts. The typical joint sealing details shown on this page andthe following page are referenced throughout this manual. Care should be taken to fill voids and gapsat joints. After parts have been assembled, trowel excess sealant over joint, taking care to forcesealant, back into joint, and not out of joint. Do not use solvent to aid in applying sealer as solventadversely affects bonding of sealant to metal. Care should be taken to avoid leaving holes or airbubbles in sealant.

Do not subject sealed joints to waterloading for 48 hours at temperatures of 70° Fahrenheit (21°Celsius) and above. Lower temperature will require a longer cure time.

A

This symbol is used throughout the manual toindicate the locations where sealer Z11 is re-quired. The refers to a �Type �A� seal� which isa 3/8" (10mm) diameter bead of sealer Z11 laidalong the centerline of a row of holes curving overeach hole it passes. Reference detail at the right.

Type A seal(Water on one side of joint)

Z11 Sealer 3/8" (10mm)diameter bead

Fastenerhole

Water sideof joint.

Z11 Sealer 3/8" (10mm)diameter bead

Fastenerhole

Type B seal

This symbol is used throughout the manual toindicate the locations where sealer Z11 is re-quired. The refers to a �Type �B� seal� which isa 3/8" (10mm) diameter bead of sealer Z11 laidalong the centerline of a row of holes curvingcompletely around each hole it passes. Refer-ence detail at the right.

B

iv 97-1188C

NC SERIESGETTING STARTED

This symbol is used throughout the manual toindicate the locations where sealer Z11 is re-quired. The refers to a �Type �C� seal� whichis a 3/8" (10mm) diameter bead of sealer Z11 laidcompletely around each hole in a row of holes.Reference detail at the right.

C

Application instructions for Strip Sealer Z12 & Z13 (Type D & E seals):Strip sealer is supplied in 1/2" (12mm) Z13 and 1" (25mm) Z12 widths. It is intended that the 1"

(25mm) wide sealer be used unless noted otherwise.Apply continuous pieces of strip sealer to the unassembled parts. Do not splice pieces except

where turning a corner. Cut with a sharp instrument, do not stretch or tear.Gaps at joints and corners can be filled by stretching a piece of strip sealer to obtain the proper

thickness. Then work it into the joint to fill gap and create an even surface.After parts are set together, use a drift pin or other pointed object to puncture sealer at each

fastener hole, where required.

This symbol is used throughout the manual toindicate the locations where a single layer of stripsealer Z12 or Z13 is required. Reference detailat the right.

D

Z12

Z13

or

TypicalFastenerhole

Type D seal

Z12

Water side of joint.Fastenerhole

Z13

Type E seal

This symbol is used on collection basin joints toindicate the locations where two layers of stripsealer are required. Align bottom edge of stripsealer Z13 with top edge of bolt holes. Align topedge of strip sealer Z12 with bottom edge of boltholes. Reference detail at the right.

E

Sealer 3/8"(10mm)

diameterbead

Z11Fastener hole

Type C seal

v97-1188C


A FEW WORDS ABOUT FASTENERS

Z05Z05

Typical bolted attachment with threaded endof bolt up or bolt installed horizontally.

This symbol is used throughout the manual toindicate the locations where Loctite Z05 is re-quired. Reference details at the right.

Loctite®:Critical structural and mechanical attachments require extra protection against the nuts

vibrating loose during tower operation. This is accomplished on galvanized fasteners by applyingLoctite Z05 thread locking compound to the exposed threads of a bolt after the nut has beeninstalled and tightened. Bolts should be installed with the threaded end up or horizontally. Onstainless steel fasteners the use of anti-seize compound makes the use of Loctite ineffective.Therefore in these critical areas with stainless steel fasteners self-locking nuts have beensubstituted for the standard nuts and the Loctite will not be used.

Stainless steel fasteners:Stainless steel fasteners are sensitive to galling. This is when you notice a sudden increase

in the force needed to turn a nut before parts are clamped. Apply anti-seize compound includedwith the tower to the threads of the bolt before installing the nut. If a nut does not easily spin ona bolt do not try to force it. Chances are it will seize. Some extra hardware is included to replaceproblem hardware.

Due to availability, 3/8" standard nuts and Loctite may have been substituted for 3/8" self-locking nuts. If this substitution has been made, do not apply the anti-seize compound to thestainless steel bolts. Insert bolt thru hole before applying Loctite. Loctite will act as a threadlubricant.

Torque Requirements:The idealized standard fastener torque values for galvanized and stainless steel fasteners are

shown in the table below. These values may vary in actual practice. Note that the values shownfor stainless steel fasteners are based on the fasteners being lubricated with anti-seize compound.

* Stainless Steel

20 (27.1)

27 (37)

74 (100)

Galvanized

20 (27.1)

45 (61)

150 (203)

BoltDiameter

FASTENER TORQUE

Fastener Torquefoot-lbs.(newton-meters)

3/8"

1/2"

3/4"

* Values based on fasteners lubricated with anti-seizecompound. (Stainless steel only)

vi

STOP!WAIT!HOLD

EVERYTHING!

Birmingham, AlabamaPalmer & Lawrence, Inc.Anchorage, AlaskaJames P. Sheldon CompanyEdmonton, Alberta International Cooling Tower Inc.Phoenix, ArizonaHolbrook & Associates, Inc.Little Rock, ArkansasWoodbury-Beach CompanyVancouver, British Columbia Esko Industries Ltd.Los Angeles, California Marley Cooling TowerSan Diego, CaliforniaDelta-T Systems, Inc.San Francisco, CaliforniaCalifornia Hydronics CorporationSanta Rosa, CaliforniaMarley Cooling TowerDenver, ColoradoJ.L. Hermon & Associates, Inc.Hamden, ConnecticutThe Bernard M. Packtor CompanyWashington, D.C.Environmental & Power Systems Inc.Jacksonville, FloridaFrench & Company, Inc.Miami, FloridaMiddleton & Associates, Inc.Orlando, FloridaAqua Air Products, Inc.Pensacola, FloridaR.M. Tugwell & Associates, Inc.Tampa, FloridaAqua Air Products, Inc.Atlanta, Georgia Marley Cooling TowerHonolulu, HawaiiMechanical Systems Corp.Chicago, Illinois Marley Cooling TowerIndianapolis, IndianaKeller-Rivest, Inc.Marshalltown, IowaR.S. Stover CompanyLouisville, KentuckyP.L. Sherman Company, Inc.New Orleans, LouisianaFischer Engineering, Ltd.Shreveport, LouisianaZimmerman, Inc.Winnipeg, Manitoba Power & Mine Supply Co., Ltd.Baltimore, MarylandH.P. Rodgers, Inc.

Boston, MassachusettsR.T. Forbes Company, Inc.Detroit, MichiganRBE, Inc.Grand Rapids, MichiganHedrick AssociatesMinneapolis, MinnesotaThe Gorgen CompanyJackson, MississippiWard Mechanical EquipmentKansas City, Missouri Marley Cooling TowerSt. Louis, MissouriMidwest Machinery CompanyBillings, MontanaClapper Company, Inc.Omaha, NebraskaR.S. Stover CompanyLas Vegas, NevadaAmpco, Inc.St. John, New BrunswickTrane Company Inc.Albuquerque, New MexicoJames, Cooke & Hobson, Inc.Albany, New YorkF.R. Foote Company, Inc.New York, New York Marley Cooling TowerRochester, New YorkThe Johnston Equipment Co., Inc.Charlotte, North CarolinaPACE, Inc.Greensboro, North CarolinaPACE, Inc.Raleigh, North CarolinaPACE, Inc.Fargo, North DakotaTherm-Air Sales CorporationHalifax, Nova Scotia Conrad Trane SalesCincinnati, Ohio Marley Cooling TowerCleveland, OhioThe Craun-Liebing CompanyColumbus, OhioTower Equipment CompanyOklahoma City, OklahomaProcess Equipment CompanyTulsa, OklahomaProcess Equipment Company, Inc.Ottawa, Ontario Mechanical Trade SalesSarnia, Ontario EFI IronrossThunder Bay, Ontario Power & Mine Supply Co., Ltd.

Toronto, Ontario Marley Cooling TowerPortland, OregonOregon Air Reps, Inc.Harrisburg, PennsylvaniaH & H Sales AssociatesPhiladelphia, Pennsylvania Marley Cooling TowerPittsburgh, PennsylvaniaP.F. Sherman CompanyMontreal, Quebec Enviroair Industries Inc.Quebec City, Quebec Evap-Tech Inc.Saskatoon, Saskatchewan Power & Mine Supply Co., Ltd.Columbia, South CarolinaPACE, Inc.Greenville, South CarolinaPACE, Inc.Knoxville, TennesseeFerguson Equipment CompanyMemphis, TennesseeT.J. O'Brien Engineering Co.Nashville, TennesseeJohnson & Scott, Inc.Austin, TexasDreher & Associates, Inc.Corpus Christi, TexasLewis Mechanical SalesDallas, TexasSlack Buckner SystemsEl Paso, TexasJames, Cooke & Hobson, Inc.Fort Worth, TexasSlack Buckner SystemsHouston, Texas Marley Cooling TowerSan Antonio, TexasDreher & Associates, Inc.Salt Lake City, UtahHolbrook & Associates, Inc.Richmond, VirginiaFrank Howell Company, Inc.Seattle, WashingtonOlympic Engineered Sales, Inc.Milwaukee, WisconsinChipley & Zeman, Inc.

Call us if you need help of any kind assembling this cooling tower.If you're missing a part, we'll replace it. If a part is damaged, we'll getyou a new one. Call us. We're standing by to solve any assemblyproblem you might have. Below is a complete list of Marley's salesrepresentatives in the US and Canada. If you need help determiningthe representative in your area please call 913.664.7400 or checkthe internet at www.marleyct.com.

97-1188C PAGE 1-1

NC SERIES TOWER ASSEMBLY

Note: If required, 6" (152mm) dia. holefor standpipe overflow is typicallyinstalled opposite of the planned motorlocation. See outlet piping key planand/or contract sales drawing for specialrequirements.

A01

A02V07 A01

A02

X02 Galvanized basin

orW02 X12 Stainless steel basinGalvanized basin

details to insure a watertight basin. Note: Refer to Basin Orientation drawing

and Bills of Material for location of parts modifiedfor per contract requirements. Begin assembly ofthe collection basin by attaching the forklift floorpanels A02 to the depressed section floor panelA01. Refer to Figure 1-1 for models NC1200thru NC4200 and Figure 1-2 for models NC5200thru NC7200, NCA200 and NCB200. Next, at-tach the forklift stiffeners A03. On models NC5200thru NC7200, NCA200 and NCB200 attach addi-tional stiffeners A04.

D

Strip sealer Z12

A03

A02

V07

W32

W22


or X12 Stainlesssteel basin

C

Figure 1-1NC1200 thru NC4200

COLLECTION BASINThe assembly site for the basin and tower

should be flat, level and clean. It should alsoallow for access to fasteners beneath the collec-tion basin.

During assembly, locate the head of boltseither on the exterior of tower or in a uniformmanner for a better appearing finished product.Sealing washers, when specified, should beplaced against the basin floor or side as shown indetails to prevent leaks at the fasteners. A flatwasher should be placed between the sealingwasher and nut or bolt head to reduce the possi-bility of damage to the sealing washer whiletightening fastener. Please observe the sealing

To avoid damaging sealingwashers use the impact wrenchon the side opposite the sealingwasher wherever possible.I

FindNo. Description

V07 3/8"x1" Bolt

W02 3/8" Lock Washer

W22 3/8" Flat Washer

W32 3/8" Sealing Washer

X02 3/8" Nut

X12 3/8" Self-locking Nut

97-1188CPAGE 1-2


Figure 1-2NC5200 thru NC7200,

NCA200 & NCB200

Note: If required, 6" (152mm) dia. holefor standpipe overflow is typicallyinstalled opposite of the planned motorlocation. See outlet piping key planand/or contract sales drawing for specialrequirements.

A02V07

V07

A01


or

W02

X12 Stainless steel basin

Galvanized basin

D

A03

A02

W32

W22



C

A02

V07

W02

Galvanizedbasin

A04A04

A03

A01

Strip sealer Z12


FindNo. Description

V07 3/8"x1" Bolt




X02 3/8" Nut


97-1188C PAGE 1-3



Attach the remaining floor panels A05 (andA06 on models NC4200 thru NC7200, NCA200and NCB200) along with end panel A09 perFigure 1-3 for models NC1200 thru NC3200 orFigure 1-4 for models NC4200 thru NC7200,NCA200 and NCB200.

W02

Galvanizedbasin

X02Galvanized basin

or

W02

X12Stainlesssteel basin

Galvanizedbasin

V07

V07

X02Galvanized basin

or

X12Stainless steel basin

E

Top row of holes only.

Strip sealerZ13 on top,Z12 on bottom

E



A05

A05

A09

A05

A05


W22

W22

FindNo. Description

V07 3/8"x1" Bolt




X02 3/8" Nut


97-1188CPAGE 1-4



NCA200 & NCB200

W02Galvanized

basin

V07

E



A05

W02Galvanized

basin

V07X02 Galvanized basin

or

X12 Stainlesssteel basin

E



A06

A06

A05

E



W22

X02Galvanizedbasin

or


A06

A05


V07

W22 W22

W22

FindNo. Description

V07 3/8"x1" Bolt




X02 3/8" Nut


A09

A09

97-1188C PAGE 1-5


Figure 1-5NCA200 & NCB200

(Viewed from underside of basin)

Models NCA200 and NCB200 require at-tachment of end stiffeners A16 as shown inFigure 1-5.

V07

W02

A16


or X12 Stainless steel basin

Cold water basin end

Galvanized basin

FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


97-1188CPAGE 1-6



Following the assembly of the floor panels,on models NC1200 thru NC7200, the basin sidesA07, A20 and A21 are spliced together andattached. Also, the corner seals A13 are in-stalled at this time. Refer to Figure 1-6 andFigure 1-7 for models NC1200 thru NC7200.

A21

A07

A20

A07

A20

A21

SeeFigure 1-7

A13

Note: If collection basin siderequires cutout, check label onpart for correct face orientation.

97-1188C PAGE 1-7



V07

V31

W33V31

V07

W30

W23

W35

V19

X02Galvanizedbasin

or


X03Galvanizedbasin

or


X04 Galvanizedbasin

or


W02 Galvanizedbasin

W22

W05

Galvanizedbasin

W02Galvanized

basin

X02Galvanizedbasin

or


W32

V07

E


Strip sealerZ13 on top,Z12 onbottom

D

Strip sealer Z12

D

Strip sealer Z12A07

A20

A13

Apply aroundholes, alongedges, and onback side ofboth flanges.

B


FindNo. Description

X02 3/8" Nut

X03 1/2" Nut

X04 3/4" Nut




FindNo. Description

V07 3/8"x1" Bolt

V19 1/2"x1 1/2" Bolt

V21 3/4"x1 1/2" Bolt









NC1200 thruNC4200 only

97-1188CPAGE 1-8



On models NCA200 and NCB200, the basinsides A07, A20 and A21 are attached to the floorand end panels first. Splice plates A22 and A23are then attached where the sides meet. Cornerseals A13 are also installed at this time. Refer toFigure 1-8 and Figure 1-9.

A21

A07

A20

A07

A20

A21

SeeFigure 1-9

A13

A22

A23

A22

A23

Note: If collection basin siderequires cutout, check label onpart for correct face orientation.

97-1188C PAGE 1-9



V07

W35

V31

V07

W30

A23

V19

X02Galvanizedbasin

or

X12Stainless

steel basin

X04Galvanized basin

orX15Stainless steel basin

W05

Galvanizedbasin

X02Galvanizedbasin or


V07

D

Strip sealer Z12

D

Strip sealer Z12

A07

A20

A13




W02Galvanized

basin

W02

Galvanizedbasin

W22

W32

E


Strip sealer Z13 ontop, Z12 on bottom

Apply around holes, alongedges, and on back sideof both flanges.

W03Galvanizedbasin

Apply strip sealer Z13 vertically, along edge of both basinsides at splice. Apply strip sealer Z12 horizontally, directlyabove floor attachment bolts, overlapping vertical strips.

B

FindNo. Description

V07 3/8"x1" Bolt

V19 1/2"x1 1/2" Bolt

V21 3/4"x1 1/2" Bolt

FindNo. Description








X02 3/8" Nut

X03 1/2" Nut

X04 3/4" Nut




97-1188CPAGE 1-10



(Viewed from underside ofbasin)

X02Galvanizedbasin

or


W02

Galvanizedbasin

V07

V07

V07

W32

W22

A12

A10

C

All models require additional stiffeners un-der the sloping collection basin floor. ModelsNC1200 thru NC3200 use two floor stiffenersA12 and one end stiffener A10 on each side ofthe tower. See Figure 1-10. On model NC4200three floor stiffeners A12 and two end stiffenersA10 per side are used as shown in Figure 1-11.Figure 1-12 shows the stiffener installation onmodels NC5200 thru NC7200, NCA200 and

NCB200. Model NC5200 uses 5 floor stiffenersA12 per side, model NC6200 uses 6 per side,model NC7200 uses 7 per side, and modelsNCA200 and NCB200 use 9 per side. On modelNC7200, one stiffener on each side is installed inthe opposite direction as the others. All five ofthese models use two each per side of endstiffeners A10 and A11.


FindNo. Description

V07 3/8"x1" Bolt




X02 3/8" Nut


97-1188C PAGE 1-11


Figure 1-11NC4200

(Viewed from underside of basin)

X02 Galvanizedbasin

or


W02Galvanizedbasin

V07

V07V07

W32

W22

A12

A10

C

W02

Galvanizedbasin

X02 Galvanizedbasin


A10


FindNo. Description

V07 3/8"x1" Bolt




X02 3/8" Nut


97-1188CPAGE 1-12



NCA200 & NCB200(Viewed from underside of basin)

X02 Galvanizedbasin

or


W02Galvanizedbasin

V07

V07

V07

W32

W22

A12

A11

C

W02

Galvanizedbasin

A11V07

W22

W32

W22W32

X02 Galvanizedbasin

or


(10 required on NC5200)(12 required on NC6200)(14 required on NC7200)(18 required on NCA200and NCB200)

A10

A10


FindNo. Description

V07 3/8"x1" Bolt




X02 3/8" Nut


97-1188C PAGE 1-13



The collection basin assembly is completedwith the installation of the fill support angles A14.These angles must be orientated with the bottomflange pointing in the direction shown so thatnotches in the vertical flange will accommodatefill tubes. See Figure 1-13 for models NC1200thru NC4200 or Figure 1-14 for models NC5200thru NC7200, NCA200 and NCB200. If access tothe underside of the collection basin will beavailable, the fill support angles may be installedduring fill installation if desired. Extra attention tosealer application is required.

A14

V07

W22

X02Galvanized basin

or


W32

C


IIf access to the undersideof the collection basin will beavailable the fill support

angles may be installed during fillinstallation if desired. Extra attentionto sealer application is required.

FindNo. Description

V07 3/8"x1" Bolt



X02 3/8" Nut


97-1188CPAGE 1-14



NCA200 & NCB200

A14

V07

W22

X02Galvanized basin

or


W32

C

IIf access to the undersideof the collection basin will beavailable the fill support

angles may be installed during fillinstallation if desired. Extra attentionto sealer application is required.


FindNo. Description

V07 3/8"x1" Bolt



X02 3/8" Nut


97-1188C PAGE 1-15


Before proceding, retighten (check torque) of fasteners on each coldwater basin joint. Sequential installation of fasteners may have loosenedpreviously tightened fasteners.

Remember, if you are havingany problems assembling thiscooling tower, help is just a phonecall away.


97-1188C PAGE 2-1


Figure 2-1

COLUMNSRefer to Figure 2-1 for installation of col-

umn D01 and bottom cross bracing clip D02 orD03 to collection basin.

NOTE: It is critical that all bolted connectionsin the structural support of mechanicalequipment remain tight. Thread locking

compound has been provided to apply to threads ofgalvanized bolts after final torquing. Because stainlesssteel hardware requires the use of an anti-seizecompound, thread locking compound should not be used.Instead self-locking nuts are used on stainless steelbolts.

I


X04 Galvanizedbasin

or


D01

D02

D03

W35W30

V32

FindNo. Description

V32 3/4"x2" Bolt



X04 3/4" Nut


97-1188CPAGE 2-2


ENDPLATESThe endplates D35 (and D39 on motor side

of NC1200) are connected to the columns perFigure 2-2. On the motor side of modelNC1200, an endplate stiffener (D40 on towerswith standard motor location or M38 on towerswith MOA) is also required.

Figure 2-2

NC1200Motor side with MOA

NC1200Motor side withstandard motor

D39

D40

D39

M38

D35

X04 Galvanizedtower

or

X15 Stainlesssteel tower

X04 Galvanizedtower

or


X03 Galvanizedtower

or


V31

V32

V19

FindNo. Description

V19 1/2"x1 1/2" Bolt

V31 3/4"x1 1/2" Bolt

V32 3/4"x2" Bolt

X03 1/2" Nut

X04 3/4" Nut



97-1188C PAGE 2-3


TORQUE TUBEAttach torque tube assembly D36 to

endplates on models NC1200 thru NC4200 us-ing top holes in endplates. See Figure 2-3.


X04 Galvanizedtower

or


V31

D36

FindNo. Description

V31 3/4"x1 1/2" Bolt

X04 3/4" Nut


97-1188CPAGE 2-4



NCA200 & NCB200

On models NC5200 thru NC7200, NCA200and NCB200 use bottom three holes to attachtorque tube assembly D36 to endplates. Refer toFigure 2-4.

X04 Galvanizedtower

or


V31

D36

FindNo. Description

V31 3/4"x1 1/2" Bolt

X04 3/4" Nut


97-1188C PAGE 2-5


BRACINGBegin bracing installation by attaching top

clips D37 and D38 to torque tube assembly. SeeFigure 2-5 for models NC1200 and NC2200.

Figure 2-5NC1200 and NC2200

X04 Galvanizedtower

or


V31

D37

D38

FindNo. Description

V31 3/4"x1 1/2" Bolt

X04 3/4" Nut


97-1188CPAGE 2-6


X04 Galvanizedtower

or


V31

D37

D38

Refer to Figure 2-6 for bracing top clip D37and D38 installation on models NC3200 thruNC7200, NCA200 and NCB200.


NCA200 & NCB200

FindNo. Description

V31 3/4"x1 1/2" Bolt

X04 3/4" Nut


97-1188C PAGE 2-7


Attach bracing channels D05 to top andbottom bracing clips. See Figure 2-7 for mod-els NC1200 and NC2200.


X04 Galvanizedtower

or X15 Stainlesssteel tower

V31

X04 Galvanizedbasin

or


D05

V31

D05

D05D05

FindNo. Description

V31 3/4"x1 1/2" Bolt

X04 3/4" Nut


97-1188CPAGE 2-8


Refer to Figure 2-8 for models NC3200and NC4200. Attach bracing channels D05 to topand bottom bracing clips.


X04 Galvanizedtower


V31

X04 Galvanizedbasin

or


D05

V31

D05

D05D05

FindNo. Description

V31 3/4"x1 1/2" Bolt

X04 3/4" Nut


97-1188C PAGE 2-9


Models NC5200 thru NC7200, NCA200 andNCB200 require two bracing channels D05 andD06 that attach to top and bottom bracing clips.See Figure 2-9.


NCA200 & NCB200

X04 Galvanizedtower


V31

X04 Galvanizedtower

or


D06

V31

D05

D06

D05

D06

FindNo. Description

V31 3/4"x1 1/2" Bolt

X04 3/4" Nut


97-1188CPAGE 2-10


Figure 2-10


or X13 Stainless steel basin

V19

D25

D24

LOUVER COLUMNSInstall louver columns D24 and D25 to col-

lection basin per Figure 2-10.

W03Galvanized basin

W33

W23


FindNo. Description

V19 1/2"x1 1/2" Bolt




X03 1/2" Nut


97-1188C PAGE 2-11


TOP GIRTSModel NC1200 utilizes a three piece girt

E01, E26 and E27, with stiffeners E28 that mustbe sub-assembled before setting in place. SeeFigure 2-11. Attach girt assembly to centercolumns, but do not bolt to louver columns at thistime.

X02 Galvanizedtower


Figure 2-11NC1200

X04 Galvanizedtower

or


V31

V07

X03 Galvanizedtower

E27

E28E01

E28

E28

E01

E26

E01

E26

E27

E27

FindNo. Description

V07 3/8"x1" Bolt

V31 3/4"x1 1/2" Bolt

X02 3/8" Nut

X04 3/4" Nut



97-1188CPAGE 2-12



E32

E32 E01

V31

V31

X04 Galvanizedtower

or

X15Stainlesssteel tower

X04Galvanizedtower or


Models NC2200 and NC3200 use a twopiece girt E01 and E32 that splice together at thecenter of the tower per Figure 2-12. Attach girtsto center columns, but do not bolt to louvercolumns at this time.

FindNo. Description

V31 3/4"x1 1/2" Bolt

X04 3/4" Nut


97-1188C PAGE 2-13



NCA200 & NCB200

E27

E27

V31

X04 Galvanizedtower

or


If you have a model NC4200 thru NC7200,NCA200 and NCB200 connect girt E27 to thecenter columns as shown in Figure 2-13.

FindNo. Description

V31 3/4"x1 1/2" Bolt

X04 3/4" Nut



97-1188C PAGE 3-1


DISTRIBUTION BASINBefore beginning basin assembly, be sure to

study Figures 3-1 thru 3-3. The same attention tosealing details is required here as on the collec-tion basin to ensure watertightness. The impor-tance of sealing properly the first time cannot beoverstated.


& NCA200

V07

W22

W32

X02

X12

Galvanizedbasin

orStainless

steel basin W22

W22

V07

W32

W22

C08

C08

X02

X12

Galvanizedbasin

orStainless

steel basin

V07

W32

W22C03

C02

C01

C14

C15

2" (50mm)

24"

(610mm)

12"

(305mm)

3" (75mm)

E




Strip sealerZ13 on top,

Z12 on bottom

Apply sealer aroundholes, along edges,and on back side ofboth flanges of C08.(Typical)

ISee the �DECALS� section of thismanual for Surface Preparation &General Application Instructions.

Begin basin assembly by attaching sidesC02 and C03 to floor panel C01. Attach cornerseals C08 and apply decals C14 and C15. SeeFigure 3-1 for models NC1200 thru NC6200 andNCA200.


FindNo. Description

V07 3/8"x1" Bolt



X02 3/8" Nut


E

97-1188CPAGE 3-2


Models NC7200 and NCB200 assemble simi-larly, but have an additional deflector C04 on theeliminator side of the basin. See Figure 3-2.

Figure 3-2NC7200 & NCB200

V07

W22

W32

X02

X12

Galvanizedbasin

orStainless

steel basin

C04

W22

V07

W32

W22

C08

C08

X02

X12

Galvanizedbasin

orStainless

steel basin

V07

W32

W22

C03

C02

C01

C14

C15

2" (50mm)

24"

(610mm)

12"

(305mm)

3" (75mm)





Z12 on bottom

Apply sealer aroundholes, along edges,and on back side ofboth flanges.

ISee the �DECALS� section of thismanual for Surface Preparation &General Application Instructions.


FindNo. Description

V07 3/8"x1" Bolt



X02 3/8" Nut


E

E

97-1188C PAGE 3-3


On models NC4200 thru NC7200, NCA200and NCB200 the sides of the basin are put on atthis time. If you have a galvanized tower withstainless steel distribution basins, stainless steelliners are required. Attach basin side E01 or E26,liner E11 or E12 (if required), and deflector C05as shown in Figure 3-3.

X12

X02Galvanizedbasin

or

Stainlesssteelbasin

V07

V07

W22

W32

W22

W32



Z12 on bottom

D

Strip sealer Z12

C05

E11This side

E12Opposite side

or

Required on galvanizedtowers with stainless steel

distribution basins only.

E26This side

E01Oppositeside

or

Bottom row of holes only.


Z13 on bottomFigure 3-3

NC4200 thru NC7200,NCA200 & NCB200

To avoid damaging sealingwashers use the impact wrenchon the side opposite the sealingwasher wherever possible.I Find

No. Description

V07 3/8"x1" Bolt



X02 3/8" Nut


E

E

97-1188CPAGE 3-4



W32

X02

X12

Galvanizedbasin

orStainless

steel basin

V07

W22W32

W02

C06

V07

W22

Galvanizedbasin

Basin floor stiffeners are installed next. In-stall center stiffener C06 on model NC1200 thruNC3200 per Figure 3-4.


FindNo. Description

V07 3/8"x1" Bolt




X02 3/8" Nut


97-1188C PAGE 3-5


Figure 3-5NC4200

W22

V07

X02

X12

Galvanized basin

orStainless steel basin

W02

Galvanizedbasin

W32

V07

C06

V07

W22

W32

Model NC4200 requires center stiffener C06installed per Figure 3-5.


FindNo. Description

V07 3/8"x1" Bolt




X02 3/8" Nut


97-1188CPAGE 3-6


Figure 3-6NC5200, NC6200 & NCA200

W33

X02

X12

Galvanized basin


X03

X13

Galvanized basin


W23V19

X03

X13

Galvanized basin

or Stainless steel basin

W33

W23

V19

Galvanizedbasin

W02

V07

C06

Install center stiffener C06 on modelsNC5200 and NC6200 as shown in Figure 3-6.Model NCA200 has two stiffeners that installsimilarly, but are equally spaced on the floorinstead of being at the center.


FindNo. Description

V07 3/8"x1" Bolt

V19 1/2"x1 1/2" Bolt




X02 3/8" Nut

X03 1/2" Nut



97-1188C PAGE 3-7



W33

X02

X12

Galvanized basin


X03

X13

Galvanized basin


W23

V19

X03

X13

Galvanized basin


W33

W23

V19

Galvanizedbasin

W02

V07

C06

Model NC7200 requires back to back centerstiffeners C06 installed per Figure 3-7. ModelNCB200 has two sets of stiffeners that installsimilarly, but are equally spaced on the floorinstead of being at the center.


FindNo. Description

V07 3/8"x1" Bolt

V19 1/2"x1 1/2" Bolt




X02 3/8" Nut

X03 1/2" Nut



97-1188CPAGE 3-8



NCA200 & NCB200

X02

X12

Galvanizedbasin

or

Stainlesssteelbasin

V07

W22

W02

Galvanizedbasin

C07

On models NC5200 thru NC7200 additionalfloor stifferners C07 are installed between thecenter stiffener and the basin side per Figure3-8. Models NCA200 and NCB200 have addi-tional stiffeners that install similarly, but are cen-tered between existing stiffeners.

FindNo. Description

V07 3/8"x1" Bolt



X02 3/8" Nut


97-1188C PAGE 3-9


Install tie rod clips C16 to distribution basinper Figure 3-9 on models NC1200 thru NC3200.

Figure 3-9NC1200 thru NC3200 V07

C16

W32

W22

X02

X12

Galvanized basin or

Stainless steel basin

C


FindNo. Description

V07 3/8"x1" Bolt



X02 3/8" Nut


97-1188CPAGE 3-10



NCA200 & NCB200

V07

C16

W32

W22

X02

X12

Galvanized basin or


C

Install tie rod clips C16 to distribution basinper Figure 3-10 on models NC4200 thru NC7200,NCA200 and NCB200. Note that clip does notattach to basin side at this time.


FindNo. Description

V07 3/8"x1" Bolt



X02 3/8" Nut


97-1188C PAGE 3-11


V07

V19

X03

X13

Galvanized basin or


W33

W23

W02

Galvanizedbasin

X02

X12

Galvanized basin

or Stainless steel basin

E31


NCA200 & NCB200

If a handrail package is to be installed onmodels NC4200 thru NC7200, NCA200 andNCB200 a post clip E31 should be installed at thistime as shown in Figure 3-11. If a handrail is notrequired, the top hole provided for the clip attach-ment must be plugged with the fasteners pro-vided.


FindNo. Description

V07 3/8"x1" Bolt

V19 1/2"x1 1/2" Bolt




X02 3/8" Nut

X03 1/2" Nut



97-1188CPAGE 3-12



V07

V19

W32



E02

E11

E12

Required ongalvanized towers

with stainlesssteel distribution

basins only.

W22

The distribution basin is set into place be-tween the girts at this time on models NC1200thru NC3200. Refer to Figure 3-12. If you havea galvanized tower with stainless steel distribu-tion basins, stainless steel liners are required.Attach bolts thru girt, liner E11 or E12 (if re-quired), basin, and deflector C05.

Bottom row of holes only.


Z13 on bottom

C05

W32

X12

X02Galvanized

basin

or

Stainlesssteel basin

X13

X03 Galvanizedbasin

or


W22

D

Strip sealer Z12

W03

Galvanizedbasin

D

Strip sealer Z12

If required

E02

E11

If required

DistributionBasin Assembly


FindNo. Description

V07 3/8"x1" Bolt

V19 1/2"x1 1/2" Bolt




X02 3/8" Nut

X03 1/2" Nut



E

E

97-1188C PAGE 3-13



On models NC4200 thru NC7200, set basinin place and attach to center girts and louvercolumns as shown in Figure 3-13.

X13

X03 Galvanized tower

or Stainless steel tower

X15



W03 Galvanized tower

W05Galvanized

tower

V31

V19


FindNo. Description

V19 1/2"x1 1/2" Bolt

V31 3/4"x1 1/2" Bolt



X03 1/2" Nut

X04 3/4" Nut



97-1188CPAGE 3-14



On models NCA200 and NCB200, set basinin place and attach to center girts with spliceplates E30 and E31 and bolt to louver columns asshown in Figure 3-14.

X13



X15




W05

Galvanizedtower

V31

V19


E31

E30

E30

E31

FindNo. Description

V19 1/2"x1 1/2" Bolt

V31 3/4"x1 1/2" Bolt



X03 1/2" Nut

X04 3/4" Nut



97-1188C PAGE 4-1


FAN DECKAfter the distribution basins are in place the

fan deck may be installed. Begin by attaching fandeck channels E13 to top girts per Figure 4-1.

Figure 4-1

X02Galvanizedtower

or


W02 Galvanizedtower

V07

E13

FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


97-1188CPAGE 4-2


Install hoisting clips E03 to top girts as shownin Figure 4-2.

Figure 4-2

X04Galvanizedtower

or


W05

V32

E03

E03

W30

Galvanizedtower

FindNo. Description

V32 3/4"x2" Bolt



X04 3/4" Nut


97-1188C PAGE 4-3


Figure 4-3NC1200

Fan deck sheets are attached next. ModelNC1200 uses 2 each of fan deck sheets E09 andE15 as shown in Figure 4-3. Basin coversupport E14 is sandwiched between fan deckand distribution basin. If your tower was notordered with optional lubeline, cover lubelineaccess hole with cover plate E10. If your towerwas not ordered with optional ladder and hand-rail, plug holes for handrail post clips and walk-way in top girt flange.

T07

W22

V07E10

T07

W22

X02 Galvanizedtower

or


X02 Galvanizedtower

or


W02 Galvanizedbasin

V07

E09

V07

V19

V07

E15

E14





W02Galvanized

tower

W02

Galvanizedtower

W02

Galvanizedtower

Plugwalkway

holes

Plug postclip holes

Apply strip sealer Z13 tomating surfaces under fansheet. Paper backing doesnot need to be removed.

FindNo. Description

T07 3/8"x1" Tap Screw

V07 3/8"x1" Bolt

V19 1/2"x1 1/2" Bolt




X02 3/8" Nut

X03 1/2" Nut



97-1188CPAGE 4-4



Models NC2200 and NC3200 use 2 each offan deck sheets E09 and E15 as shown in Figure4-4. Basin cover support E14 is sandwichedbetween fan deck and distribution basin. If yourtower was not ordered with optional lubeline,cover lubeline access hole with cover plate E10.If your tower was not ordered with optional ladderand handrail, plug holes for handrail post clipsand walkway in top girt flange.

T07

W22

V07E10

T07

W22

X02 Galvanizedtower

or


W02

Galvanizedbasin

V07

E09

V07V19

V01

E15E14



X03Galvanized tower

orX13Stainless steel

tower

W02

Galvanized tower

W02

Galvanizedtower

Plugwalkway

holes

Plug postclip holes

Apply strip sealerZ13 to matingsurfaces under fansheet. Paperbacking does notneed to be removed.

X11

W03Galvanizedtower

X02 Galvanizedtower

or


FindNo. Description


V01 1/4"x3/4" Bolt

V07 3/8"x1" Bolt

V19 1/2"x1 1/2" Bolt




X02 3/8" Nut

X03 1/2" Nut




97-1188C PAGE 4-5


Figure 4-5NC4200

Model NC4200 uses 2 each of fan decksheets E09, E15 and E16 as shown in Figure4-5. Basin cover support E14 is sandwichedbetween fan deck and distribution basin. If yourtower was not ordered with optional lubeline,cover lubeline access hole with cover plate E10.If your tower was not ordered with optional ladderand handrail, plug holes for handrail post clipsand walkway in top girt flange.

T07

W22V07

E10

T07

W22

X11

X02

or

X12

W02

V07

E09

V19V01

E15

E14

X02

or X12

X03Galvanized tower or

X13Stainless steel tower

W02

Galvanizedtower

W03

Galvanizedtower

Plugwalkway

holes

Plug postclip holes

Galvanizedbasin

Galvanized basin


E16

Galvanizedtower

Stainlesssteel tower

Apply strip sealerZ13 to matingsurfaces under fansheet. Paperbacking does notneed to be removed.

FindNo. Description


V01 1/4"x3/4" Bolt

V07 3/8"x1" Bolt

V19 1/2"x1 1/2" Bolt




X02 3/8" Nut

X03 1/2" Nut




97-1188CPAGE 4-6



NCA200 & NCB200

Models NC5200 thru NC7200, NCA200 andNCB200 use 2 each of fan deck sheets E09, E15and E16 as shown in Figure 4-6. Basin coversupport E14 is sandwiched between fan deckand distribution basin. If your tower was notordered with optional lubeline, cover lubelineaccess hole with cover plate E10. If your towerwas not ordered with optional ladder and hand-rail, plug holes for handrail post clips and walk-way in top girt flange.

T07

W22

V07

E10

T07 W22

W02

V07

E09

V19

E15

E14

X02

or X12X03Galvanized tower or


W02

Galvanizedtower

W03

Galvanizedtower

Plugwalkway

holes

Plug postclip holes Apply strip sealer

Z13 to matingsurfaces under fansheet. Paperbacking does notneed to be removed.

Galvanizedbasin

Galvanized basin

Stainless steelbasin

E16

V07





W02

Galvanizedtower

E15

FindNo. Description


V07 3/8"x1" Bolt

V19 1/2"x1 1/2" Bolt




X02 3/8" Nut

X03 1/2" Nut



97-1188C PAGE 4-7


Figure 4-7NC1200

V07

X02

or X12

Galvanized tower

Apply a bead of sealerZ11 to top of angle

W02Galvanized tower

E17

Stainless steel tower

After fan deck sheets are in place, installstiffeners under fan deck. Model NC1200 re-quires one diagonal stiffener E17 in each cornerof fan deck as shown in Figure 4-7.

FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


97-1188CPAGE 4-8



V07

X02

or X12

Galvanized tower


W02Galvanizedtower

E17

E18


Models NC2200 thru NC4200 require twodiagonal stiffeners E17 and E18 in each corner offan deck as shown in Figure 4-8.

FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


97-1188C PAGE 4-9



NCA200 & NCB200

V07

X02

or X12

Galvanized tower


W02Galvanizedtower

E19


W02

Galvanizedtower

E17

E18

Models NC5200 thru NC7200, NCA200 andNCB200 require two diagonal stiffeners E17 andE18 in each corner of fan deck and an additionalstiffener E19 installed parallel to each top girt asshown in Figure 4-9.

FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


(This page intentionally left blank.)

97-1188C PAGE 5-1


CASINGBegin casing installation of casing in the

plenum area. On motor side of model NC1200,refer to Figure 5-1 and attach casing sheetsD07 and D08 to the top girt and the collectionbasin. See page 5-8 for typical attachmentdetails. On this model only, the center casingsheet is dependent upon motor selection and isinstalled in the mechanical equipment section ofthis manual.

D08

D07

Apply strip sealer Z13 to columnsbefore installing casing. Afterinstalling casing, run a bead ofsealer Z11 at all casing seams.

Figure 5-1NC1200 Motor Side

97-1188CPAGE 5-2


D08

D07


Figure 5-2NC1200 Side Opposite Motor

D10

On side opposite motor, on model NC1200,install casing sheets D07, D08 and D10 as shownin Figure 5-2. See page 5-8 for typical attach-ment details.

97-1188C PAGE 5-3


D08

D07



D33D10

D33

D12

D11

On models NC2200 and NC3200, installcasing sheets D07, D08, D10, D11 and D12. Usechannel stiffeners D33 as indicated in Figure5-3. See page 5-8 for typical attachmentdetails.

97-1188CPAGE 5-4


D08

D07


Figure 5-4NC4200

D10

On model NC4200, install casing sheetsD07, D08 and D10 as shown in Figure 5-4. Seepage 5-8 for typical attachment details.

97-1188C PAGE 5-5


D08

D07


Figure 5-5NC5200

D33D10

D33

D12

D11

On model NC5200, install casing sheetsD07, D08, D10, D11 and D12. Use channelstiffeners D33 as indicated in Figure 5-5. Seepage 5-8 for typical attachment details.

97-1188CPAGE 5-6


D08

D07


Figure 5-6NC6200 & NCA200

D33

D10

D33

D12

D11

D43

D43

On models NC6200 and NCA200 installcasing sheets D07, D08, D10, D11, D12 andD43. Use channel stiffeners D33 as indicated inFigure 5-6. See page 5-8 for typical attach-ment details.

97-1188C PAGE 5-7


D08

D07



D33D10

D33

D12

D11

On models NC7200 and NCB200 installcasing sheets D07, D08, D10, D11 and D12. Usechannel stiffeners D33 as indicated in Figure 5-7. See page 5-8 for typical attachment details.

97-1188CPAGE 5-8


X03

Galvanized tower

or

X12


W03

Galvanized tower

V07 V07

X12

Galvanizedtower

or

X02


W02Galvanizedtower

Casing to TopDeck Attachment

Casing to CasingAttachment

Casing to CollectionBasin Attachment

Typical Other CasingAttachment

V07T07

V07

W32

W02

X02Galvanized basin or


Galvanizedbasin

W02



Galvanizedbasin

In fillarea

D33

Whenrequired

Bolt headon outsideof tower

or V19

orW02

X13or

X02or

FindNo. Description

X02 3/8" Nut

X03 1/2" Nut



FindNo. Description


V07 3/8"x1" Bolt

V19 1/2"x1 1/2" Bolt




97-1188C PAGE 6-1


FillBefore beginning, determine which side of

tower the fill will be installed from. Sufficientspace is required on one side of the tower to allowfill tubes to be installed in the collection basin (thiswill be a space approximately equal to the widthof the tower). Once this is determined, the firststep is to install the casing on the opposite side.

If you have a model NC1200 thru NC4200refer to Figure 6-1. Locate casing sheet B03,and attach tube support B07.


T07

W32

B03

B07

B07

B03

Strip sealer Z12

D

FindNo. Description



97-1188CPAGE 6-2


Figure 6-2NC5200, NC6200 & NCA200

If you have a model NC5200, NC6200 orNCA200 refer to Figure 6-2. Locate casingsheet B03, and attach tube support B07.

T07

W32

B03

B07

B07

B03

Strip sealer Z12

D

FindNo. Description



97-1188C PAGE 6-3



If your model is an NC7200 or NCB200,locate casing sheets B01 thru B04 and assemblewith channel stiffeners D33 as shown in to Figure6-3.

D33

B03

B04

B01

B02

D33

V07

X02

W02

X12

Galvanizedtower


or

Strip sealer Z13

G

Galvanizedtower

FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


97-1188CPAGE 6-4



Continue on with models NC7200 andNCB200 by attaching tube support B07. SeeFigure 6-4.

B07

B07

Strip sealer Z12

D

T07

Casing assembly

FindNo. Description



W32

97-1188C PAGE 6-5


Figure 6-5

Apply strip sealer Z13 on top flange ofassembled casing. Attach casing to collectionbasin, top girt, louver column and existing casingas shown in Figure 6-5. Casing to casingattachments require the use of channel stiffenersD33.

X02

X12

Galvanized tower


or

Galvanizedtower

D33

Casingassembly

FindNo. Description


V07 3/8"x1" Bolt



X02 3/8" Nut


V07

Galvanizedtower

W02

V07

T07W32

X02

X12

or

Galvanized tower


V07

W02

D33

* Apply strip sealer by placingedge of sealer against theedge of the holes. Fold thesealer around the corner ontothe vertical face of the casingsheet.

Interior face ofcasing assembly

Strip sealer Z12 *

97-1188CPAGE 6-6


Slip fill support tubes B10 thru holes in tubesupport and slide retaining bolt V06 from the top,thru the slot in tube support and on thru the holesin the support tube. This prevents the tube fromslipping out of support. See Figure 6-6.

V06

B10

Figure 6-6Viewed from Underside

of Distribution Basin

FindNo. Description

V06 1/4"x4" Bolt

97-1188C PAGE 6-7


Figure 6-7Viewed from Underside

of Distribution Basin

Temporary tube supports B27 are suppliedwith the tower to assist with the fill installation(wire or rope must be supplied by the erector).Refer to Figure 6-7 and install tempory fill tubesupport approximately 12" (305mm) from centerof tower as shown.

Thera are two types of fill sheets, B11 andB12, which are installed alternately to form aproperly spaced fill pack. It is important that thefill packs be installed correctly or the coolingtower will not perform at full capacity. You can tellthe difference between an A fill sheet B11 and aB fill sheet B12 by the rotation of the indexingspacer formed within the fill sheet.

With temporary tube support in place, beginby installing one A fill sheet and water deflectorB08 with the short flange bent towards the first fillsheet. Continue fill sheet installation (first a Bsheet, and then an A sheet) until the number ofsheets recommended to be to the left of the fillpartition have been installed, (see Figure 6-9 formodels NC1200 thru NC4200, Figure 6-10 formodels NC5200, NC6200 and NCA200 or Figure6-11 for models NC7200 and NCB200) plus twoadditional sheets. The edges of the sheetsshould form a honeycomb pattern on the louverand eliminator faces as they are installed. If anyof the sheets "nest" together, you have installedtwo identical sheets together.

B27

B11

Temporarytube support

Indexingspacer

Eliminators(NC1200 thru

NC6200 &NCA200)

Louvers

Temporary HangerFasten rope or wire thru nozzle holes indistribution basin and thru 3/4" (19mm)diameter holes in Marley supplied supports.

B12

B08

97-1188CPAGE 6-8


Figure 6-8

With the recommended number of fill sheetson the support tubes, install another temporarytube support B27 on the outside of the fill asshown in Figure 6-8. Remove the first tempo-rary support and slide the fill sheets over againstthe casing. If lower fill tube retainers are notalready in place, they should be installed as fill isbeing moved into place. For location of lower filltube retainers, see Figure 6-12.

Tower models NC1200 thru NC3200 do notrequire U-bolt supports, so fill partition is installednext. Tower models NC4200 thru NC7200,NCA200 and NCB200 require U-bolt supports onthe upper fill tubes. First, compress the fillsimulating a tight installation. Next, determinebetween which fill sheets U-bolts should beinstalled by locating slots in distribution basinfloor and projecting straight down. Install U-boltsN98 per Figure 6-13A.

Fill sheets should forma honeycomb pattern.

B27

After installing the recommendednumber of fill sheets, install asecond temporary support towardthe ends of the tubes. Removefirst support and slide fill into finalposition. A lubricant on thesurface of the tube may facilitatesliding the fill.

If tube retainers make fillinstallation difficult and accessto the underside of collectionbasin is available, retainersmay be installed as the fill ismoved into place. See Figure6-12A.

97-1188C PAGE 6-9



B12&

Alternatingfill sheets

B11

B±1

A±1

B10

X02 X12 Stainless steel tower

Galvanizedtower

or

Apply sealer Z12on flat surfaceacross deflectorson both eliminatorand louver faces.

Apply a bead of sealer Z11around and between holesbefore installing deflectors.Apply an additional bead ofsealer along top edge ofdeflector after it is in place.

Galvanized tower

If the fill pack is not tight, use additional fill sheets from padprovided.

FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


Recommended Fill Sheet Quantities

Model A B + Last Sheet Total

NC1200 49 49 98

NC2200 65 57 122

NC3200 65 57 122

NC4200 73 65 138

W02

B15

V07

B13

B08

or

Last fill sheet

B11 B12

97-1188CPAGE 6-10


Figure 6-10NC5200, NC6200 & NCA200

B12&


B11

B±1

A±1

W02

X12 Stainless steel tower

Galvanizedtower

or

Apply sealer Z12on flat surfaceacross deflectorson both eliminatorand louver faces.

Apply a bead of sealer Z11around and between holesbefore installing deflectors.Apply an additional bead ofsealer along top edge ofdeflector after it is in place.

Galvanized tower

If the fill pack is not tight, use additional fill sheets from padprovided.

FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut




NC5200 89 81 170

NC6200 97 89 186

NCA200 120 98 218

X02

V07

B15

B10

B08

B14

B13

or

Last fill sheet

B11 B12

97-1188C PAGE 6-11



If the fill pack is not tight, use additional fill sheets frompad provided.

B12&


B11

B±1

A±1

B10

Stainless steeltower

Galvanizedtower

or

Apply sealer Z12on flat surfaceacross deflectorson botheliminator andlouver faces.

Apply a bead of sealerZ11 around and betweenholes before installingdeflectors. Apply anadditional bead of sealeralong top edge of deflectorafter it is in place.

FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut




NC7200 97 89 186

NCB200 104 114 218

Galvanizedtower

W02X02

X12

V07

B15

B08

B12or

Last fill sheet

B11

B13B14

97-1188CPAGE 6-12


The fill partition will be installed next perFigure 6-9, 6-10 or 6-11. Sub-assemble the fillpartition before installing in tower. Models NC5200thru NC7200, NCA200 and NCB200 must haveeliminator side B13 attached to louver side B14.All models have water deflectors B15 at the topthat bolt together with partition sandwiched be-tween. Install in tower in the same mannor as thefill sheets. Deflectors on fill partition are to extendover the first fill sheet next to the partition. Sealends of deflectors, under hot water basin deflec-tors, using strip sealer Z12.

If the fill pack is not tight, use additional fill sheetsfrom pad provided.

B

A

A

Figure 6-12Two times A plus B equals the

Total number of fill sheets.

Fill supports


Model A B Total

NC1200 11 76 98

NC2200 11 100 122

NC3200 11 100 122

NC4200 11 116 138

NC5200 32 106 170

NC6200 32 122 186

NC7200 32 122 186

NCA200 48 122 218

NCB200 48 122 218

97-1188C PAGE 6-13


Figure 6-13B

Remove the temporary support at the rightend of the fill tubes. Note: be sure the U-bolts arein place (on NC4200 thru NC7200, NCA200 andNCB200) before removing the temporary sup-port. Continue installing fill sheets as describedearlier until all but the last sheet are in place.Note: if the final fill sheets are difficult to install usea sheet of plywood with ropes near the top andbottom of the fill to compress and hold the fill whilethe last sheets are installed. Make sure fill packis tight. If additional fill sheets can be added, doso. Install water deflector B08 with the top bentflange toward the casing (see Figure 6-13B).Install the final fill sheet.

Fill sheets

Water deflector

Casing

First and last fillsheets thould bebetween the casingand the waterdeflectorB08. Topdeflector flangeshould be angledtoward casing.

Figure 6-13ANC4200 thru NC7200,

NCA200 & NCB200

A

X11

Fill tube

N35

W21

N98

Vertical distance from top of filltube to distribution basin floor.

Install one per tube (NC4200 thruNC7200) or two per tube (NCA200 &NCB200)

FindNo. Description



Model A

NC4200 8 15/16" (227mm)

NC5200 8 1/16" (205mm)

NC6200 8 1/16" (205mm)

NC7200 8 1/16" (205mm)

NCA200 8 1/16" (205mm)

NCB200 8 1/16" (205mm)

B08

97-1188CPAGE 6-14


Figure 6-14

V06

Models NC1200thru NC4200 have

only one tube.

V07

B07

W02 X02

B18

W32

B01T07

W32

B10


or

Galvanizedtower

Galvanizedtower

Strip sealer Z12

D

T07

B

or

B17 When the lower tube is not thesame material as the upper tube.

T07W32

Slip tube support B07 over fill tubes and slidebolt V06 thru slot in support and thru holes in endof tube as shown in Figure 6-14. Install lower fillretainer tubes B10 or B17 thru the cutouts in thecollection basin and into the holes in the fill. Note:lower tubes install easier from the left side of thefill, when viewed from the louvers. This may notbe possible due to tower location. Also, a light oilor soap on the tubes can help. After the lowertubes are in place install coverplates B18 asshown. Note: on multiple tower installation,coverplates must be installed on side betweentowers, before next cell is set in place. Apply stripsealer Z12 to tube support B07 and casing sheetB01 (or casing assembly on models NC7200 andNCB200) as shown. Maneuver casing into placeand attach to collection basin, girt, and tubesupport.

Install remaining casing by refering back toCasing Section and Figures 5-1 thru 5-7.

FindNo. Description


V06 1/4"x4" Bolt

V07 3/8"x1" Bolt



X02 3/8" Nut


Interior face ofcasing assembly

* Apply strip sealer by placingedge of sealer against theedge of the holes. Fold thesealer around the corner ontothe vertical face of the casingsheet.

Strip sealer Z12 *

97-1188C PAGE 6-15


Figure 6-15NC7200

Eliminator PacksEliminator packs are required on models

NC7200 and NCB200. See Figure 6-15 formodel NC7200. Attach eliminator support anglesA16 to bottom fill supports and eliminator supportD18 to eliminator support angles. Attach topeliminator retainer D23 to distribution basin end.

Eliminator packs are installed by pushing upunder the top retainer and setting over lip onbottom eliminator tray. Install eliminator packsD19 beginning against the casing on the rightside and continuing towards the fill partition. The

pack next to the fill partition must be cut to fit snugagainst the right side of the fill partition, with theremainder of the pack placed on left side ofpartition. Continue adding full width packs untilthey no longer fit. Measure remaining space, cutthe last pack 1" (2.54 mm) wider and install for atight fit.

V07

V07


X02

X12Stainlesssteel tower or

Galvanized tower

X02


or

Galvanizedtower

D23

Distribution basin end

W02

Galvanizedtower

V07

A16

D18

Fill support

Fill side

Dischargeside

Fill side

Discharge side

Section A-A

Cut off last pack this side soeliminator pack will set flush.

D19

Fillpartition

Typical

FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


97-1188CPAGE 6-16


Figure 6-16NCB200

See Figure 6-16 for model NCB200. Attacheliminator support angles A16 to bottom fill sup-ports and eliminator support D18 to eliminatorsupport angles. Attach top eliminator retainerD23 to distribution basin end.

Eliminator packs are installed by pushing upunder the top retainer and setting over lip onbottom eliminator tray. Install eliminator packsbeginning with 4.8" (122 mm) wide pack D20against the casing on the right side and continu-ing towards the fill partition with 9.6" (244) widepacks D19. The pack next to the fill partition must

be cut to fit snug against the right side of the fillpartition, with the remainder discarded. Begin onleft side of fill partition with D19 and continue untilthey no longer fit. Measure remaining space, cutthe last pack 1" (2.54 mm) wider and install for atight fit.

V07

V07


X02

X12Stainlesssteel tower or

Galvanized tower

X02


or

Galvanizedtower

D23

Distribution basin end

W02

Galvanizedtower

V07

A16

D18

Fill support

Fill side

Dischargeside

Fill side

Discharge side

Section A-A

Cut off last pack this side soeliminator pack will set flush.

D20

Fillpartition

First packonly

FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


D19

Typical

97-1188C PAGE 7-1


TIE RODSFigure 7-1 shows the tie-rod installation

on the louver face. Connect tie-rods D27 tocollection basin end at the bottom and tie-rod clipat the top. Secure tie-rods where they crossusing U-bolt D41. Note that galvanized U-boltscome with a plate and nuts for installation, but onstainless steel towers the plate D42 and nuts areseperate items.

D27

Figure 7-1

V32

X04

D27

X15or Stainless steel basin

Galvanized basin

W30

V32

W35X04

X15 orStainless steel basin

Galvanized basin

D41

D41

orStainlesssteel tower

Galvanized tower

D42 X01

D27

C

FindNo. Description

V32 3/4"x2" Bolt



X01 1/4" Nut

X04 3/4" Nut


97-1188CPAGE 7-2



& NCA200

LOWER FAN CYLINDERRefer to Figure 7-2 for lower fan cylinder

orientation on models NC1200 thru NC4200 andNCA200 or to Figure 7-3 for models NC5200 thruNC7200 and NCB200.

Install 1/4" bolts (with threaded end up)around cutout in fan deck using sealing washersW31 as retainers to hold bolts in place. Lower

E20

E21

E21

E20

fiberglass fan cylinder segments E20 (and E21on models NC1200 thru NC4200 and NCA200)over bolts as shown in Figure 7-4A. Note: beforetightening fasteners, making splice joints, or in-stalling doweling fasteners, refer to the Fan Ad-justment section.

97-1188C PAGE 7-3



& NCB200

E20

E20

Make adjustments, then splice cylinder seg-ments together using existing holes in cylinder asa template, drill (3) 7/16" (11mm) holes and installfasteners as shown in Figure 7-4B.

Drill doweling holes in each cylinder seg-

ment at approximately 22 1/2° off tower centerlineand install doweling fasteners as indicated inFigure 7-5A. After tightening fasteners, boltcylinder to fan deck stiffeners.

97-1188CPAGE 7-4


Figure 7-4ACylinder to Deck Attachment

Figure 7-4BCylinder Splice

Stainless steel fasteners used on all towers.

E21

W31

W21

V04

W21

E20

or

Use cylinder as atemplate to drill holes.

W22

V07

X12

W22E21E20 or

FindNo. Description

V04 1/4"x1 1/2" Bolt (all thd.)

V07 3/8"x1" Bolt






X11

97-1188C PAGE 7-5


Figure 7-5ADoweling Installation

Figure 7-5BCylinder to Stiffener Attachment

T10

X11

Drill (2) 1/4" (6mm) diameter holesthru fan deck in each cylindersegment, countersink, and installfasteners (bolt head up).

W11

V02

X11

W11

Stainless steel fasteners used on alltowers.

FindNo. Description

T10 1/4"x1" Flat Head Bolt

V02 1/4"x1" Bolt (all thd.)

W11 1/4" Oversize Washer



97-1188C PAGE 8-1


MECHANICAL EQUIPMENTThe previously installed torque tube assem-

bly that spans the width of the tower has a platefor each, the motor and Geareducer to sit on. Themotor utilizes channel supports that produce thecorrect elevation and the Geareducer may ormay not have similar supports, depending ontower model.

On towers with motor outside airstream(MOA) option, the motor is placed on a specialsupport outside the tower and a driveshaft isused as the drive line between motor andGeareducer.

Review tower model, motor frame, and mo-tor location on tower being assembled and referto the table on this page for corresponding figurenumbers to use in this manual.

INote that standard motor location is onthe side opposite of the 6" (152mm)diameter hole in the collection basin floor.

Tower Model Motor FrameRequired Figure Numbers

Standard MotorLocation

MOA Option

NC1200 &NC1210

184T, 213T, 215T,254T & 256T

8-2, 8-4, 8-11 & 8-16 8-3, 8-4, 8-9, 8-11 & 8-17

NC1220213T & 215T 8-2, 8-5, 8-12 & 8-16 8-3, 8-5, 8-9, 8-12 & 8-17

254T, 256T & 284TS 8-2, 8-5, 8-13 & 8-16 8-3, 8-5, 8-9, 8-13 & 8-17

NC2200 thruNC4200

215T 8-6, 8-12 & 8-16 8-6, 8-9, 8-12 & 8-17254T, 256T, 284T,

284TS, 286T & 286TS8-6, 8-14 & 8-16 8-6, 8-9, 8-14 & 8-17

324TS 8-6, 8-15 & 8-16 8-6, 8-9, 8-15 & 8-17

NC4200 324T & 326T 8-6, 8-15 & 8-16 8-6, 8-9, 8-15 & 8-17

NC5200 thruNC5220

215T 8-7, 8-12 & 8-16 8-7, 8-10, 8-12 & 8-17

254T & 256T 8-7, 8-11 & 8-16 8-7, 8-10, 8-11 & 8-17284T,286T,324T,326T

& 364T8-7, 8-14 & 8-16 8-7, 8-10, 8-14 & 8-17

NC5230 thruNC7200, NCA200

& NCB200

215T, 254T & 256T 8-8, 8-11 & 8-16 8-8, 8-10, 8-11 & 8-17284T, 286T,324T, 326T,

364T & 365T8-8, 8-14 & 8-16 8-8, 8-10, 8-14 & 8-17

NC7200, NCA200& NCB200 404T & 405T 8-8, 8-15 & 8-16 8-8, 8-10, 8-15 & 8-17

97-1188CPAGE 8-2


On model NC1200, the casing installed inthe motor area is dependent upon the motorlocation. When the motor is in the standardlocation it will project thru the casing and there-fore requires a motor cover. See Figure 8-2.

Figure 8-2NC1200 only

The motor cover may come in three pieces asshown, or on smaller motors, a one piece designis used. Both designs install similarly. Installmotor cover D50 (and D51 if required) as shown.




V07

X12

Galvanizedtower

or

X02


W02 Galvanizedtower

W02

Galvanizedtower V07

V07

D51

D51

D50




FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


97-1188C PAGE 8-3


On model NC1200 with the MOA option,install center casing sheet D50 as shown inFigure 8-3.

Figure 8-3NC1200 only

X12

Galvanizedtower

or

X02


W02

Galvanizedtower




V07

V07

D50

FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


97-1188CPAGE 8-4



GEAREDUCER INSTALLATIONThe Geareducer type and installation is de-

pendent upon what model cooling tower is beingassembled. Models NC1200 & NC1210 use aSeries 10 Geareducer installed on a support.Attach Geareducer support stiffeners M33 to

Geareducer support M32, adding spacers M41as required. Attach support to plate on torquetube assembly and Geareducer M20 to support,as shown. See Figure 8-4.

M33



W03

Galvanizedtower

V19

W23

W23

V22

W23V19

M41

Use asrequired toeliminategaps.

X03

W03

X03Galvanizedtower

or


W23

M32 Position flange with slotstoward back of Geareducer.

Series 10Geareducer

M20

M33

W03Galvanizedtower

W23

IDo not apply anti-seize compoundto stainless steel Geareducer holddown bolts. Loctite will be appliedto these attachments later.

FindNo. Description

V19 1/2"x1 1/2" Bolt

V22 1/2"x2 1/2" Bolt



X03 1/2" Nut


97-1188C PAGE 8-5


Figure 8-5NC1220

Refer to Figure 8-5 for installation of aSeries 20 Geareducer M20 on model NC1220.

M20

Series 20Geareducer

W04

X05

W29

W29

V30


FindNo. Description

V30 5/8"x2 1/2" Bolt



X05 5/8" Nut

97-1188CPAGE 8-6



Models NC2200 thru NC4200 use a Series20 Geareducer M20 installed per Figure 8-6.

M20

Series 20Geareducer

W04

X05

W29

W29

V30


FindNo. Description

V30 5/8"x2 1/2" Bolt



X05 5/8" Nut

97-1188C PAGE 8-7



On model NC5200 thru NC5220 attachGeareducer supports M32 and M33 to plate ontorque tube assembly and then the Series 20Geareducer M20 to supports. See Figure 8-7.

M20 Series 20Geareducer

W04

X05

W29

W29

V30

W23

W03

X03


Galvanizedtower

or

X13

Galvanizedtower

W29

V29

M33

M32Position flange withslots toward back ofGeareducer.

Position flange withslots toward backof Geareducer.


V19

X05


Galvanizedtower

or

X14

W04

Galvanizedtower

W29

(Over slots only)

FindNo. Description

V19 1/2"x1 1/2" Bolt

V29 5/8"x2" Bolt

V30 5/8"x2 1/2" Bolt





X03 1/2" Nut

X05 5/8" Nut



97-1188CPAGE 8-8



NCA200 & NCB200

Models NC5230 thru NC7200, NCA200 andNCB200 use a Series 22 Geareducer M20 thatattaches directly to the plate on the torque tubeassembly. Models NC7200, NCA200 andNCB200 require stiffener plates M24 under theback Geareducer feet. Refer to Figure 8-8.

Series 22Geareducer

W04

X05

W29

W29

M24NC7200,NCA200 &NCB200 only

M20


FindNo. Description

V30 5/8"x2 1/2" Bolt

V49 5/8"x3" Bolt



X05 5/8" Nut

V30 NC5230 &NC6200 only

V49NC7200,NCA200 &NCB200 only

or

97-1188C PAGE 8-9



with MOA option

MOTOR INSTALLATIONIf your tower has the MOA option, you must

install a motor support on the outside of thecasing. For models NC1200 thru NC4200 referto Figure 8-9. The motor support is bolted tothe tower using the same holes that attach thetorque tube assembly. Leave the bottom twobolts on each side in place and remove the toptwo bolts. Attach motor support M29 on outsideof tower with support angles M36 and channelsM37 on inside of tower as shown.



V19



V32

M29

M37

M36

Do not remove these twobolts! Square holes in motorsupport are to clear bolt heads.

FindNo. Description

V19 1/2"x1 1/2" Bolt

V32 3/4"x2" Bolt

X03 1/2" Nut

X04 3/4" Nut



97-1188CPAGE 8-10



NCA200 & NCB200with MOA option

For models NC5200 thru NC7200, NCA200and NCB200 refer to Figure 8-10. The motorsupport is bolted to the tower using the sameholes that attach the torque tube assembly. Leavethe middle two bolts on each side in place andremove the top and bottom bolts. Attach motorsupport M29 on outside of tower with supportchannel assembly M36 and channels M37 oninside of tower as shown.



V19



V32

M29

M37

M36

Do not remove these twobolts! Square holes in motorsupport are to clear bolt heads.

V07



FindNo. Description

V07 3/8"x1" Bolt

V19 1/2"x1 1/2" Bolt

V32 3/4"x2" Bolt

X02 3/8" Nut

X03 1/2" Nut

X04 3/4" Nut




97-1188C PAGE 8-11


Figure 8-11

The motor will set on supports that vary inheight dependent upon tower model and motorframe. If your tower model and motor frame arelisted below, refer to Figure 8-11. Install motorto support as shown.

X02 184T, 213T & 215T

or X03 254T & 256T

W02 184T, 213T & 215T

or W03 254T & 256T

W23

184T, 213T & 215T

or

W22

254T & 256T

V09 213T & 215T

or V22 254T & 256T

V07 184T

or

Motor

M25

A

Position flangewith slots towardback of motor.

IDo not apply anti-seize compoundto stainless steel motor hold downbolts. Loctite will be applied tothese attachments later.

FindNo. Description

V07 3/8"x1" Bolt

V09 3/8"x1 1/2" Bolt

V22 1/2"x2 1/2" Bolt





X02 3/8" Nut

X03 1/2" Nut

Tower Model Motor Frame A

NC1200 thru NC1210

184T 2 1/8" (54mm)

213T & 215T 2 1/8" (54mm)

254T & 256T 2" (51mm)

97-1188CPAGE 8-12


Figure 8-12

If your tower model and motor frame arelisted below, refer to Figure 8-12. Install motorto supports M25 and stiffeners M34 and M35 withspacers M42 as shown.

A

X02

W02

Motor

M25Position flange

with slots towardback of motor.



NC1220 213T & 215T 2 3/16" (56mm)

NC2200 thru NC4200 215T 1 7/8" (48mm)

NC5200 thru NC5220 215T 2 1/8" (54mm)

FindNo. Description

V09 3/8"x1 1/2" Bolt

V19 1/2"x1 1/2" Bolt





X02 3/8" Nut

X03 1/2" Nut

X13 1/2" Self-Locking Nut

V09

W22

W23 or


X03

X13

Galvanizedtower

W03 Galvanized Tower

V19

W23

M42

M34

M35

97-1188C PAGE 8-13


Figure 8-13

If your tower model and motor frame arelisted below, refer to Figure 8-13. Install motorto supports M25 and M26 as shown.

X03

W03

A

M25


V22

W23

Motor

B

M26



Tower Model Motor Frame A B

NC1220

254T

3 1/2" (89mm)

2 5/16" (59mm)

256T 4" (102mm)

284TS 3 9/16" (90mm)

FindNo. Description

V22 1/2"x2 1/2" Bolt



X03 1/2" Nut

97-1188CPAGE 8-14


Figure 8-14

If your tower model and motor frame arelisted below, refer to Figure 8-14. Install motorto supports M25 and stiffeners M34 and M35 withspacers M42 as shown. X03


Motor

M34



NC5200 thru NC5220 254T & 256T 2 11/16" (68mm)

NC5230 thru NC7200215T 2 7/16" (62mm)

254T & 256T 2 9/16" (65mm)

FindNo. Description

V19 1/2"x1 1/2" Bolt

V22 1/2"x2 1/2" Bolt



X03 1/2" Nut


W23V22

W03

W03Galvanized Tower

or


X03

X13

Galvanizedtower

M25

M35

W23

V19

A

M42

97-1188C PAGE 8-15


Figure 8-15

If your tower model and motor frame arelisted below, refer to Figure 8-15. Install motorto supports M26 and/or M25 as shown.

Motor

M26

A

Position flange with slotstoward back of motor.

V30

324T326T364T365T

V22

254T256T284T284TS286T286TS

or

X03

324T326T364T365T

or

X05

254T256T284T284TS286T286TS

W04

324T326T364T365T

W03

254T256T284T284TS286T286TS

or

W23

324T326T364T365T

or

W29254T256T284T284TS286T286TS

M25Position flange with slots

toward back of motor.

B


FindNo. Description

V22 1/2"x2 1/2" Bolt

V30 5/8"x2 1/2" Bolt





X03 1/2" Nut

X05 5/8" Nut

orM25

TowerModel

MotorFrame

A B

NC2200thru

NC4200

254T

2 1/4" (57mm)

1 15/16" (49mm)

256T 3 11/16" (94mm)

284T 2 1/8" (54mm)

286TS 3 11/16" (94mm)

NC5200thru

NC5220

284T3 1/4" (83mm)

1 3/4" (44mm)

286T 3 1/4" (83mm)

324T2 7/8" (73mm)

2 3/8" (60mm)

326T 3 7/8" (98mm)

364T 3 1/8" (79mm) 3 3/8" (86mm)

NC5230thru

NC7200,NCA200

&NCB200

284T2 7/8" (73mm)

1 3/8" (35mm)

286T 2 7/8" (73mm)

324T1 5/8" (41mm)

1 5/8" (41mm)

326T 3 3/8" (86mm)364T &365T

2 7/8" (73mm) 2 7/8" (73mm)

97-1188CPAGE 8-16


Figure 8-16

If your tower model and motor frame arelisted below, refer to Figure 8-16. Install motorto supports M26 and/or M25 as shown.

Motor

M25

M25

Position flange with slotstoward back of motor.


V33324T326T324TS

V30

404T405T

or

W29

324T326T324TSW30

404T405T

or

X05

324T326T324TSX04

404T405T

or

W05324T326T324TS

W04

404T405T

or

A

B


FindNo. Description

V30 5/8"x2 1/2" Bolt

V33 3/4"x2 1/2" Bolt





X04 3/4" Nut

X05 5/8" Nut

or M26

Tower Model Motor Frame A B

NC2200 thru NC4200 324TS 1 3/8" (35mm) 1 1/8" (29mm)

NC4200324T

2 7/8" (73mm)2 5/8" (67mm)

326T 4 1/8" (105mm)NC7200, NCA200 &

NCB200404T & 405T 1 1/2" (38mm) 1 1/2" (38mm)

97-1188C PAGE 8-17


Figure 8-17

DRIVELINE INSTALLATIONFor standard installation of motor inside the

tower refer to Figure 8-17. Line up motor andGeareducer shafts approximately 1/2" to 1" (13 to25mm) apart and connect motor supports totorque tube assembly. Install drive coupling M27using shims Y56 as required to align drive cou-pling. Refer to Close Coupling Service Manualfor installation instructions. After installing drivecoupling, coat motor and Geareducer shafts withpaint.

or

V19


M27X03

X13

W03

Galvanizedtower

Galvanizedtower

Y56

Asrequired

Motor(Assembledto supports)

See Service Manualfor installation andalignment instructions

Y56

W23

Asrequired

Geareducer(Assembled totorque tube)

See Mechanical EquipmentHold Down Fasteners sectionfor alignment pin installation.

FindNo. Description

V19 1/2"x1 1/2" Bolt



X03 1/2" Nut


97-1188CPAGE 8-18


Figure 8-18MOA only

For optional MOA (Motor Outside Airstream)installation refer to Figure 8-18. Coat motorshaft, Geareducer shaft and bores of driveshaftyokes with lubricant Z21. Slide driveshaft guardM30 around driveshaft M28 and install driveshafton motor and Geareducer shafts. Using theDriveshaft Service Manual, determine motor lo-cation, based on shaft engagement indicated.

Use shims Y56, as required, to align driveshaft.After installing driveshaft, coat motor andGeareducer shafts with paint. Install guard clipsM31 on inside of casing. Slide guard thru hole incasing against motor, and use clips as templatesto drill (2) 3/16" (5mm) diameter holes in guard,and attach to clips. On models NC1200 andNC2200, apply low head room decal M40 to bothsides of support at dimensions shown. AttachM.E. installation decal M39 to right side of sup-port above caution decal on models NC1200 andNC2200 or in lower position on all other models.

or

V19


M28X03

X13

W03

Galvanizedtower

Galvanizedtower

Y56

Asrequired

Motor(Assembledto supports)

See Service Manualfor installation andalignment instructions

Y56

W23

Asrequired

Geareducer(Assembled totorque tube)

See Mechanical EquipmentHold Down Fasteners sectionfor alignment pin installation.

M31

T06

FindNo. Description

T06 1/4"x3/4" Tap Screw

V19 1/2"x1 1/2" Bolt



X03 1/2" Nut


M39Install on this sideof support only.

M40Install on both sides ofsupport. Required onNC1200 & NC2200 only.

M30 M31

97-1188C PAGE 8-19


Fan blade

Fan blade

Blade Tip Clearance CheckAdjust by repositioning Geareducer within

cylinder or by adjusting fan cylinder

Fan Tilt CheckAdjust by shimming Geareducer while

maintaining alignment with motor.

Pitching boss

A

A

Fan cylinder

Fan blade

Fan cylinder

Tip Track CheckIf not within tolerancerecheck blade, blade

attachment and fan pitch.

Any single blade must be samedistance from fan deck to fanblade around perimeter of cylinderwithin a range of one inch (25mm).

All blades when rotated past the same location on cylinder mustbe same distance from fan deck within ±3/8" (±10mm) NC1200thru NC5200 or ±1/2" (±13mm) NC6200, NC7200, NCA200 &NCB200.

Fanrotation

Fan

Inside ofcylinder

A ±1/8" (±3mm)

Fan bladepitch angle

±1/2°

FAN INSTALLATION & ADJUSTMENTBefore lower fan cylinder is secured in place,

install fan M51, set fan blade pitch to contractrequirements and adjust fan blade tip clearance,tip track, and fan tilt as indicated in Figure 8-19.Fan blades should be pitched at a location wherethe fan hub is level and parallel with fan deck.

Section A-AFan Blade Pitch Detail

Figure 8-19

M51

Each blade must be rotated and pitched at thesame reference point as the first blade pitched.Tower must be plumb and cylinder centeredaround fan to provide proper tip clearance. Uselongest blade and check all around cylinder for tipclearance. Be certain each blade is in its� furthestout position.

Tower Model A

NC1200 thru NC5200 3/8" (10mm)NC6200 thru NC7200,NCA200 & NCB200

1/2" (13mm)

97-1188CPAGE 8-20


Y55

On models with Series 20 or 22 Geareducer,after rechecking alignment, drill thru supportand drive pin to project an equal distanceabove Geareducer foot and below support.

After all driveline and fan adjustments havebeen made refer to Figure 8-20. Tighten eachmotor and Geareducer nut 5 to 10 ft-lbs (7 to 13N-m) less than specified torque while holding bolthead. Retighten nuts to specified torque. Boltheads may be tightened while holding nut if nut isnot accessible with torque wrench. Now apply

Figure 8-20(This detail applies to both, standard motorand motor outside airstream installations.

Detail shows motor inside tower.)

thread locking compound Z05 to all bolt threads.On towers with a Series 20 or 22 Geareducer,

two drive pins Y55 are used to retain alignment.Using pilot holes in Geareducer feet, drill a 23/64"(9mm) diameter hole thru support and drive pinthru to project an equal distance aboveGeareducer foot and below support.

Fastener Torque at Motor and GeareducerHold-Down Fasteners Only

BoltDiameter

Fastener Torquefoot-lbs. (Newton-meters)

Galvanized(Unlubricated)

Stainless Steel(Unlubricated

3/8" 30-32 (41-43) 34-36 (46-48)

1/2" 64-66 (87-90) 85-90 (115-122)

5/8" 135-140 (183-190) 125-130 (169-176)

3/4" 220-230 (298-312) 195-205 (264-278)

97-1188C PAGE 8-21


X11

Figure 8-21

After making fan adjustments, secure fancylinder in position by drilling (2) 1/4" (6 mm)diameter holes approximately 22 1/2 degrees offtower centerline in each cylinder quadrant, coun-tersink, and install fasteners (bolt head up) ineach hole as shown.

T10

Drill 1/4" (6 mm) diameterhole thru fan deck in fan

cylinder, countersink, andinstall fasteners.

FindNo. Description

T10 1/4"x1" Flat Head Bolt



97-1188C PAGE 9-1

NC SERIES MISCELLANEOUS

INLET PIPING & FLUMEIf tower is not using the optional HC valves,

inlet piping is attached directly to the distributionbasin. See Figure 9-1A. Note that inlet pipingand fasteners are supplied by others.

If HC valves N40 are to be installed, they areattached as shown in Figure 9-1B. A full facegasker N45 is used between valve and distribu-tion basin and a ring gasket N39 is used betweenvalve and inlet piping.

Figure 9-1B

Figure 9-1A

N45

Inlet piping and fastenerssupplied by others

Distribution basin floor

Piping, supports, design of piping andsupports, and restraint of lateral pipingloads is the responsibility of others.I

X04

X04

N45

N40

Inlet pipingsupplied by others

Half bolts are threadedinto tapped holes in valvebody, the other half boltsrequire nuts.

Distribution basin floor

Full face gasketwith bolt circle

6" and 8"dia. valves

FindNo. Description

V32 3/4"x2" Bolt

V35 3/4"x3" Bolt (all thrd.)

V42 7/8"x5" Bolt (all thrd.)

V46 7/8"x2" Bolt





X04 3/4" Nut

X06 7/8" Nut

N39

V35

V42

or

10" dia. valve

V42

or

V32 6" and 8"dia. valves

10" dia. valveW20

or

W30 6" and 8"dia. valves

10" dia. valve

W36

or

W35 6" and 8"dia. valves

10" dia. valve

97-1188CPAGE 9-2


Assemble the distribution basin flumes onmodels NC1200 thru NC7200 by attaching flumesupports C09 to center flume C10. On modelNC7200, supports must be added to end flumesections C11 and C12 also. See Figure 9-2.

C11

C12

C10

C09

C09 W02

X02

C09

V07


Galvanizedbasin

Galvanizedbasin

NC7200 only

NC7200 only


FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


97-1188C PAGE 9-3


Refer to Figure 9-3 for distribution basinflume assembly on models NCA200 and NCB200.Attach flume supports C09 to center flume C10and to end flume sections C11and C12 as shown.

C09 W02

X02

C09


Galvanizedbasin

Galvanizedbasin


FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


C12

C10V07

C11

C09

97-1188CPAGE 9-4


Figure 9-4

Install plastic nozzles by firmly pressing into1 3/4" (44mm) diameter holes in basin floor.Attach outside flumes to distribution basin asshown in Figure 9-4. Slide center flume intoplace under distribution basin inlet, and attach asindicated.

V07

W32

W22

X02

Nozzle

Flumes(assembledon previouspage)

FindNo. Description

V07 3/8"x1" Bolt



X02 3/8" Nut

97-1188C PAGE 9-5


Figure 9-5

V26

W23X03

Install support bolt for inlet flume per en-larged detail in Figure 9-5.

FindNo. Description

V26 1/2"x6" Bolt (all thd.)


X03 1/2" Nut

97-1188CPAGE 9-6


Attach water deflectors C13 to distributionbasin floor on models NC7200 and NCB200 asshown.

Figure 9-6

Two center deflectors requiredon models NCB200 only.

C13

C13T07

T07

FindNo. Description


97-1188C PAGE 9-7


DISTRIBUTION BASIN COVERSBegin distribution basin cover installation

by attaching bolt, lock washers and standard nutin lower horizontal flange of distribution basininlet end as shown in Figure 9-7. Install distri-bution basin cover E22 (and E23 on some mod-els) by slipping one end of cover between fandeck and cover support, sliding other end overpreviously installed bolt, and securing with seal-ing washer and wing nut. Refer to Figure 9-7 forcover configuration on your specific model.

Figure 9-7

X42

Stainless steel fasteners used on all towers.

V12

W02

X02

E22 E23or

FindNo. Description

V12 3/8"x2 1/2" Bolt (all thd.)



X02 3/8" Nut

X42 3/8" Wing Nut

W32

97-1188CPAGE 9-8


Figure 9-8Partial Plan Views

NC1200

NC2200 & NC3200

NC4200

NC5200, NCA200 & NCB200

NC6200 & NC7200

E22 E23

E23

E22

E22

E22

E22E22

E23

97-1188C PAGE 9-9


UPPER FAN CYLINDER & GUARDFan cylinder segments D31 are installed

on top of the lower cylinder that extends downfrom fan deck. Segments are to straddle towercenterline (except models NC1200 & NCA200thru NCC200) and be orientated as shown inFigure 9-9.

A single piece fan guard is provided onmodels NC1200 thru NC3200. Models NC4200thru NC7200, NCA200 and NCB200 use a twopiece fan guard and require guard splice hard-ware. On models with a two piece fan guard,guard D32 is installed first and a splice clip N97is used to retain guard D34.

Figure 9-9

N97

X11

V09

W12

W12

W02

X02

W21 W01X01

V04D31 T07

D31

D32

V09

W12

W12

X02

W02

X11

Fan deck

Threaded end ofexisting 1/4" bolt

W23 Five 1/2" washers used asspacers.

D34

Apply a 3/8" (10mm) dia. bead ofsealer around the perimeter toeliminate any rattles.

Lower fan cylinder

FindNo. Description


V04 1/4"x1 1/2" Bolt (all thd.)

V09 3/8"x1 1/2" Bolt






X01 1/4" Nut

X02 3/8" Nut


W21

97-1188CPAGE 9-10


Figure 9-10

ACCESS DOORAs shown in Figure 9-10, attach male

portion of hinges D14 to the casing sheet, and thefemale portion to the access door D13. Set thedoor in place and attach rubber door bumpersD28. Access door should open and close smoothlybefore fasteners attaching hinges to casing aretightened. Next, install handle D15 and latchD16. Slots have been provided where the latchattaches to the access door, check the operationof the latch and adjust as necessary.

D13

D28

D13

D14

T04

T04

D28

T06

X09

W43D14

T03D16

D15

D28

Models NC3200 thruNC7200, NCA200 & NCB200

use three hinges per door.

FindNo. Description

T03 #10x1/2" Mach. Screw

T04 1/4"x1/2" Cap Screw

T06 1/4"x3/4" Tap Screw

W43 #10 Flat Washer

X09 #10 Nut

97-1188C PAGE 9-11


Figure 9-11

N34 One on eachend of tower

Surface PreparationSurface must be clean and dry. Oil and dirt may be removed with solvent (such as acetone)

or commercial detergent. Finally wash the area with warm water and dry with a lint-free cloth.Ultimate adhesion will occur 24-48 hours after application. Application should not be undertakenif temperature is below 35° F (2° C) or humidity is greater than 95%.

General application instructionsPeel off backing paper, taking care to avoid dirt contamination of the exposed adhesive. On

larger decals with slit back removal of half of the backing paper before and the other half duringinstallation is beneficial for ease of alignment and installation.

Carefully apply the decal to the desired location with light pressure to avoid any distortionof vinyl. This is the time to remove the other half of backing paper on larger decals. Oncepositioned, smooth out with the aid of a squeegee or toweling.

If air bubbles occur, puncture with a pin or needle and smooth down with the squeegee. Thefinished decal should be completely flat.

Note: Decals are an important part of the tower assembly. Decals and nameplates provideinstructions, identifications, cautions and warnings deemed necessary for proper maintenance.

DECALS

Install one decal N34 on each end of thecollection basin per Figure 9-11.

97-1188CPAGE 9-12


See Figure 9-12 for installation of remain-ing decals on models NC1200 and NC4200. Firstinstall serial number plate N30, patent numberdecal N31, inspection decal N35, and warningdecal N43 to the motor side of tower. Install


warning and caution decals N32, N33, N34 & N36to both sides of the tower. Add CTI decal N37 andFactory Mutual decal N38 to motor side of tower,if required. Below decals on casing sheet, installthe extra motor nameplate supplied with motor.

N38 (If required)

N31

N36

N30

N32

N33

N34

N35

N37

Y50

(If required)

Install extra motor nameplate atthis location. Using top two holesin nameplate as a template, drilltwo .130" (3mm) diameter holesand attach with rivets Y50.

N43

FindNo. Description

Y50 1/8" Pop Rivet

97-1188C PAGE 9-13


Figure 9-13NC2200, NC3200,


Remaining decals on models NC2200,NC3200, NC5200 thru NC7200, NCA200 andNCB200 are installed per Figure 9-13. Firstinstall serial number plate N30, patent numberdecal N31, inspection decal N35, and warningdecal N43 to the motor side of the tower. Install

warning and caution decals N32, N33, N34 & N36to both sides of the tower. Add CTI decal N37 andFactory Mutual decal N38 to motor side of tower,if required. Below decals on casing sheet, installthe extra motor nameplate supplied with motor.

N38

(If required)

N31

N36

N30

N32

N33

N34

N35

N37 Y50(If required)

Install extra motor nameplate atthis location. Using top two holesin nameplate as a template, drilltwo .130" (3mm) diameter holesand attach with rivets Y50.

N43

FindNo. Description

Y50 1/8" Pop Rivet

97-1188CPAGE 9-14


Cut stripe decal D30 to lengths requiredbased on tower model. Install stripe decal andlogo decal D29 at dimensions shown in Figure9-14.

Figure 9-14

D30D29

D30

Model NC6200only

18"(457mm)

23"(584mm)

B

A

C

Tower Model A B C

NC1200 24 1/2" (622mm) 20 3/8" (518mm) ---

NC2200 24 1/2" (622mm) 19 1/4" (489mm) ---

NC3200 38" (965mm) 19 1/4" (489mm) ---

NC4200 38" (965mm) 38 3/8" (975mm) ---

NC5200 38" (965mm) 38 3/4" (984mm) ---

NC6200 38" (965mm) --- 38 3/4" (984mm)

NC7200 42" (1067mm) 18 3/4" (476mm) ---

NCA200 38" (965mm) 20" (508mm) ---

NCB200 42" (1067mm) 18 3/4" (476mm) ---

97-1188C PAGE 10-1

NC SERIES OPTIONAL EQUIPMENT

W22

Overflow & drain connections(not present when tower hasstandpipe drain & overflow)

Figure 10-1Side Outlet Suction

OUTLET PIPINGThe following details explain the installation

of the four possible types of outlet piping connec-tions that your tower may have. A tower may notrequire an outlet if it is flumed to another tower.The flume and flume weir gate installations arealso covered in this section. The various types ofoutlets are the side outlet suction, the sump,bottom outlet with screen and bottom outlet with-out screen. The side suction is installed in thecollection basin side. The other outlets, whenused, are located in the depressed section floor.The collection basin may be connected to an-other tower with a flume. Refer to the contract

work order, outlet piping key plan drawing,and/or the contract sales drawing to deter-mine what equipment you have and the cor-rect installation location for it.

The side outlet suction Q01 is installed perFigure 10-1 by attaching it to the inside of thecollection basin using gasket Q00. Two suctionscreens Q02 are set in place between the de-pressed section sides and the suction hood withthe flanges facing down toward the hood. A thirdscreen Q03 is hooked over the top of the flangeon the end of the hood.

Install with flangestoward hood

Collectionbasin side

Hook top overhood flange

Collection basindepressed section

Install with flangestoward hood

(2 required) Installin hood to create orbreak air tight seal.

V07

W32

Q00

T07

Q02Q03

X02

Q02

Stainless steel fasteners must beused on stainless steel basins toavoid loss of connection.

Q01

FindNo. Description


V07 3/8"x1" Bolt



X02 3/8" Nut

97-1188CPAGE 10-2


Sump installation is per Figure 10-2. Sumpmay be rotated 90° or 180° provided outlet pipingwill clear supporting steel. Lay strips of gasketY10 around sump opening in depressed sectionfloor. Set sump Q04 in place and use as atemplate to drill 7/16" (11mm) diameter holesthru gasket. Attach sump to floor and seal aroundperimeter. On fiberglass sumps, install plastictank adapter Q06 and pipe cap Q07 in the bottomof the sump as a drain (on steel sumps, pipe plugQ07 is installed in the coupling in the front of thesump).

Figure 10-2Sump


Fiberglasssump only

Q06

Q07

Drain plug(Steel sump only)

Q06

Install two layers thick with corners overlapped.Do not leave gaps where strips butt. Sump maybe used as a template to drill 7/16" (11mm)diameter holes in gasket strips.

V09

W12

W22

W32

Y10X02

Fiberglasssump only

C

Underoversizedwasher

Apply abeadwherestrips butt.

After sump is installed,apply a bead of sealeraround perimeter ofsump, force into seam,and spread out evenly.


Q04

FindNo. Description

V09 3/8"x1 1/2" Bolt




X02 3/8" Nut

97-1188C PAGE 10-3


See Figure 10-3 for the typical attachmentof customer piping using gasket Q14. A sumpplate Q96 is used on the inside of fiberglasssumps only. After piping has been install setsump screen (if required) in place over the sumpopening. On sumps with higher flows, a screenassembly with anti-vortex plate is used instead ofthe sump screen shown. See "Anti-vortex Plate"installation detail. The tower is not designed tosupport additional piping loads. DO NOTSUPPORT PIPING FROM THE TOWER.

Outlet piping and fastenersSupplied by others.

Fiberglass sumps only. Installusing outlet piping fasteners.

Sump ScreenOn sumps with high flows, ascreen assembly with anti-vortexplate is used. (See "Anti-vortexPlate" installation detail.)

Q14

B


Figure 10-3Sump Screen

Q96

Clean surfaces and apply a 3/8"(10mm) dia. bead of sealer aroundand between all holes on sumpplate and outside of sump.

97-1188CPAGE 10-4


The typical attachment of customer pipingfor bottom outlet or equalizer connection usinggasket Q14 is shown in Figure 10-4. Thetower is not designed to support additionalpiping loads. DO NOT SUPPORT PIPINGFROM THE TOWER.


Outlet piping and fastenersSupplied by others.

Q14


Figure 10-4Bottom Outlet

B

Clean surfaces andapply a 3/8" (10mm)dia. bead of sealeraround and between allholes under basinwhere gasket attaches.

97-1188C PAGE 10-5


Figure 10-5Screen and Mudsills


X02

Q24

W32

W22

V07

Bottom Outlet ScreenPlace between mudsills. Forbottom outlets with high flow rates,a screen assembly with anti-vortexplate is used. (See "Anti-vortexPlate" installation detail.)

When a screen is needed with the bottomoutlet, it is installed as shown in Figure 10-5.Attach mudsills Q24 to basin floor and set screenbetween them. On bottom outlets with higherflow rates, a screen assembly with anti-vortexplate is used. See "Anti-vortex Plate" installationdetail.

C

FindNo. Description

V07 3/8"x1" Bolt



X02 3/8" Nut

97-1188CPAGE 10-6


Figure 10-6Anti-vortex Plate

X02

Stainless steel basinor X12

Galvanized basin

On towers with higher outlet flows, an anti-vortex plate is required. Assemble anti-vortexplate Q20, screens Q22 and Q23, and retainersQ21 as shown in Figure 10-6. Adjust screensor cut wire if required to allow bolts to pass thru.Position anti-vortex assembly in depressed areaof collection basin centered over outlet.

W02 Galvanized basin

W22

V07

Q22

Q22Q23

Q23

Q20

Q21

A

FindNo. Description

V07 3/8"x1" Bolt



X02 3/8" Nut


Tower Model ANC1200 thru NC6200

& NCA200 6" (152mm)

NC7200 & NCB200 7" (178mm)

97-1188C PAGE 10-7


Figure 10-7ADrain & Overflow Coverplate

Figure 10-7BBlank Plate

Q11

X02Q00

V07

W32

W22

Q10

X02Q00

V07

W32

W22

Coverplates are used to close off the open-ings in the collection basin sides. Various con-figurations of coverplates are possible, but theyall attach similarly. Refer to Figure 10-7A fordrain and overflow coverplate Q11 with gasketQ00, or Figure 10-7B for blank coverplate Q10with gasket Q00. These are the two mostcommon coverplates used.


FindNo. Description

V07 3/8"x1" Bolt



X02 3/8" Nut

97-1188CPAGE 10-8


Figure 10-8AStandpipe Overflow

Figure 10-8BCoverplate Drain Plug

Q18

All towers must have an overflow and drain,either as the standard standpipe in the collectionbasin floor or at the optional coverplate location.The standpipe overflow and drain is installed perFigure 10-8A. Bolt coupling assembly Q47 tothe bottom of the collection basin floor at the 6"(152mm) diameter hole and bolt pattern. Installstandpipe Q48. The standpipe is PVC unless anoptional heater element is close by, then a steelstandpipe will be installed with teflon tape (sup-plied by others) to provide a watertight seal.

If optional coverplate drain and overflow isbeing used, and coverplate drain is not beingplumbed, install pipe plug Q18 per Figure 10-8B.

Q48

V07

W22

W32

Q47

X02

B


ITake care not to cross thread thePVC standpipe when threadinginto the steel coupling assembly.

FindNo. Description

V07 3/8"x1" Bolt



X02 3/8" Nut

97-1188C PAGE 10-9


Figure 10-9Flume Frame

If collection basins of multiple cell towers areto be connected together, a flume is required.Attach flume frame Q13 to outside of collectionbasin, where flume is to be located, using gasketQ00 per Figure 10-9.

V07

V12

Q13

Q00

X02

W32W22

W22

W32

X12 Stainless steel basin

or

Galvanized basin

If weir plate is required, install in secondholes from top and bottom on sides andfourth holes from ends on top and bottom.

Install in all remaining holesafter installing longer bolts.

Stainless steel fasteners must be usedon stainless steel basins to avoid loss ofconnection.

FindNo. Description

V07 3/8"x1" Bolt

V12 3/8"x2 1/2" Bolt (all thd.)



X02 3/8" Nut


97-1188CPAGE 10-10


Figure 10-10Flume

Collection basin side

If collection basins of multiple towers are tobe connected together, a flume is installed perFigure 10-10. Note that towers must be alignedbefore attempting to install flume in place.

Sealing of the flume connections is criti-cal to prevent leaks. Apply a 1/2" (13mm) beadof sealer Z11 as indicated, around and between

all holes on both flume collars. Install non-joggled flume corners Q11 first. Apply anotherbead of sealer around and between holes wherejoggle will overlap on flume. Complete flumeinstallation by installing joggled flume cornersQ15.

Q11

Q11

Q15

Q15

V07

W32

W22W22

W32

Apply a 1/2" (13mm) diameterbead of sealer around andbetween holes on flume collars.

Apply a 1/2" (13mm) diameter beadof sealer around and between holeswhere joggle will overlap.

IMPORTANT! Flumes are not a walking surface.Flumes that are 18" (457mm) long and longer havea caution decal which should be orientated on top.


FindNo. Description

V07 3/8"x1" Bolt



97-1188C PAGE 10-11


Figure 10-11Weir Plate


If weir gate option is being used, refer toFigure 10-11 for installation details. Set gasketQ19 in place over protruding attachment bolts.Slide weir gate Q16 in place and tighten evenly.

Q16

W02

X02

Q19

FindNo. Description


X02 3/8" Nut


97-1188C PAGE 11-1


Figure 11-1Standard Float Valve

V07

Q38

Reuseexistingfasteners

W02

Galvanizedbasin

X02Galvanized

basin


or

Install decal on outsideof casing to the left ofthe float valve hole.

Q35

Q25

Q26

Q27

Q28

Q31

FindNo. Description

V07 3/8"x1" Bolt


X02 3/8" Nut


FLOAT VALVEThe float valve is used to control water

make-up and is normally provided on all towers.Multi-cell towers may not require a float valve ineach cell unless weir plates are used to isolateindividual cells. Float valve components to beused will depend on outlet piping and otheroptions in basin. Refer to Outlet Piping Draw-ing for float valve location and orientation.

Figure 11-1 shows the standard float valveinstallation. Start by attaching water inlet assem-bly Q25 to the casing. Using pipe joint compoundZ04, install a 45° elbow Q26 to the end of the inletassembly and then install a close nipple Q27.Next install the float valve Q28 (make sure valveopening is pointing down). Install float and valvestem assembly Q31. Coat exposed pipe threadswith rust inhibiting paint. See your NC OwnersManual for adjustment of float valve. Install decalQ35 on outside of tower casing, to the left of thefloat valve inlet (see decal section of this manualfor surface preparation and general applicationinstructions). If makeup piping is not to beattached immediately, install plastic thread pro-tector Q38 on inlet assembly.

97-1188CPAGE 11-2


Figure 11-2 shows the across basin floatvalve installation for models NC1200 and NC2200.Start by attaching support angle Q39 to collectionbasin and float valve support Q34 to angle. Installwater inlet assembly Q25 to the casing as shown.Using pipe joint compound Z04 on all pipe con-nections, connect 90° elbow Q26, pipe Q27, asecond 90° elbow Q26, pipe Q33, a third 90°elbow Q26, pipe Q32, and float valve Q28 (makesure valve opening is pointing down). Install floatand valve stem assembly Q31. Coat exposedpipe threads with rust inhibiting paint. See yourNC Owners Manual for adjustment of float valve.Use pipe clamp Q36 to secure piping to floatvalve support. Install decal Q35 on outside oftower casing, to the left of the float valve inlet (seedecal section of this manual for surface prepara-tion and general application instructions). Ifmakeup piping is not to be attached immediately,install plastic thread protector Q38 on inlet as-sembly.

Figure 11-2Accross Basin Float Valve

NC1200 and NC2200

V07 Q38

Reuseexisting

fasteners

W02

Galvanizedbasin

X02Galvanized

basin


or


Q35

Q26

Q27Q33

Q36

X02 Galvanizedbasin


or


or

X02 Galvanizedbasin

V07

W32

W22

V07

Q34

Q39

W02

Galvanizedbasin

V02

X01

W01

W21

Q28

Q33

Q26

Q32

Q25

Q25

Q31

C

FindNo. Description

V02 1/4"x1" Bolt

V07 3/8"x1" Bolt






X01 1/4" Nut

X02 3/8" Nut


97-1188C PAGE 11-3


Figure 11-3Accross Basin Float Valve


Figure 11-3 shows the across basin floatvalve installation for models NC3200 thru NC7200,NCA200 and NCB200. Start by attaching supportangle Q39 to collection basin and float valve sup-port Q34 to angle. Install water inlet assembly Q25to the casing as shown. Using pipe joint compoundZ04 on all pipe connections, connect full couplingQ32, pipe Q33, 90° street elbow Q26, and floatvalve Q28 (make sure valve opening is pointingdown). Install float and valve stem assembly Q31.Coat exposed pipe threads with rust inhibiting paint.See your NC Owners Manual for adjustment of floatvalve. Use pipe clamp Q36 to secure piping to floatvalve support. Install decal Q35 on outside of towercasing, to the left of the float valve inlet (see decalsection of this manual for surface preparation andgeneral application instructions). If makeup pipingis not to be attached immediately, install plasticthread protector Q38 on inlet assembly.

V07

Q38

Reuseexisting

fasteners

W02

Galvanizedbasin

X02Galvanized

basin


or


Q35

Q32

Q33

Q25

Q31

X02Galvanized

basin


or


or

X02 Galvanizedbasin

V07

W32

W22

V07Q34

Q39

W02

Galvanizedbasin

Q36 V02

X01

W21

Q28

Q33

Q26 Q25

W01

C

FindNo. Description

V02 1/4"x1" Bolt

V07 3/8"x1" Bolt






X01 1/4" Nut

X02 3/8" Nut


97-1188CPAGE 11-4


On diagonally opposite side of the towerfrom where the float valve inlet is installed, or onboth sides of tower if it has no float valve, a holeplug Q37 is installed in the casing per Figure11-4.

Q37

Apply a small bead ofsealer around hole plug

before installing into hole.

Figure 11-4

97-1188C PAGE 12-1

NC SERIES FIND NUMBER INDEX

Find Number Index

A

A01 1-1A02 1-1A03 1-1A04 1-1A05 1-3A06 1-3A07 1-6, 1-8A09 1-3, 1-4A10 1-10A11 1-10A12 1-10A13 1-6, 1-8A14 1-13A16 1-5, 6-15, 6-16A20 1-6, 1-8A21 1-6, 1-8A22 1-8A23 1-8

B

B01 6-3B02 6-3B03 6-1, 6-2, 6-3B04 6-3B07 6-1, 6-2, 6-4, 6-14B08 6-7, 6-9, 6-10, 6-11, 6-13B10 6-6, 6-9, 6-14B11 6-7, 6-9, 6-10, 6-11B12 6-7, 6-9, 6-10, 6-11B13 6-9, 6-10, 6-11, 6-12B14 6-10, 6-11, 6-12B15 6-9, 6-10, 6-11, 6-12B17 6-14B27 6-7, 6-8

C

C01 3-1C02 3-1C03 3-1C04 3-2C05 3-3, 3-12C06 3-4, 3-5, 3-6, 3-7C07 3-8C08 3-1C09 9-2, 9-3C10 9-2, 9-3C11 9-2, 9-3C12 9-2, 9-3C13 9-6

C14 3-1C15 3-1C16 3-9, 3-10

D

D01 2-1D02 2-1D03 2-1D05 2-7, 2-8, 2-9D06 2-9D07 5-1, 5-2, 5-3, 5-4, 5-5, 5-6, 5-7D08 5-1, 5-2, 5-3, 5-4, 5-5, 5-6, 5-7D10 5-2, 5-3, 5-4, 5-5, 5-6, 5-7D11 5-3, 5-5, 5-6, 5-7D12 5-3, 5-5, 5-6, 5-7D13 9-10D14 9-10D15 9-10D16 9-10D18 6-15, 6-16D19 6-15, 6-16D20 6-16D23 6-15, 6-16D24 2-10D25 2-10D27 7-1D28 9-10D29 9-14D30 9-14D31 9-9D32 9-9D33 5-3, 5-5, 5-6, 5-7, 6-3, 6-5D34 9-9D35 2-2D36 2-3, 2-4D37 2-5, 2-6D38 2-5, 2-6D39 2-2D40 2-2D41 7-1D42 7-1D43 5-6D50 8-2, 8-3D51 8-2

E

E01 2-11, 2-12, 2-13, 3-3E03 4-2E09 4-3, 4-4, 4-5, 4-6E10 4-3, 4-4, 4-5, 4-6E11 3-3, 3-12E12 3-3, 3-12E13 4-1E14 4-3, 4-4, 4-5, 4-6E15 4-3, 4-4, 4-5, 4-6E16 4-5, 4-6

97-1188CPAGE 12-2

NC SERIES FIND NUMBER INDEX

E17 4-7, 4-8, 4-9E18 4-8, 4-9E19 4-9E20 7-2E21 7-2E22 9-7E23 9-7E26 2-11, 3-3E27 2-11, 2-13E28 2-11E30 3-14E31 3-11, 3-14E32 2-12

M

M20 8-4, 8-5, 8-6, 8-7, 8-8M24 8-8M25 8-11, 8-12, 8-13, 8-14, 8-15, 8-16M26 8-12, 8-13, 8-14, 8-15, 8-16M27 8-17M28 8-18M29 8-9, 8-10M30 8-18M31 8-18M32 8-4, 8-7M33 8-4, 8-7M34 8-12, 8-14M35 8-12, 8-14M36 8-9, 8-10M37 8-9, 8-10M38 2-2M39 8-18M40 8-18M41 8-4M42 8-12, 8-14M51 8-19

N

N30 9-12, 9-13N31 9-12, 9-13N32 9-12, 9-13N33 9-12, 9-13N34 9-11, 9-12, 9-13N35 6-13, 9-12, 9-13N36 9-12, 9-13N37 9-12, 9-13N38 9-12, 9-13N39 9-1N40 9-1N43 9-12, 9-13N45 9-1N97 9-9N98 6-8, 6-13

Q

Q00 10-1, 10-7, 10-9

Q01 10-1Q02 10-1Q03 10-1Q04 10-2Q06 10-2Q07 10-2Q10 10-7Q11 10-7, 10-10Q13 10-9Q14 10-3, 10-4Q15 10-10Q16 10-11Q18 10-8Q19 10-11Q20 10-6Q21 10-6Q22 10-6Q23 10-6Q24 10-5Q25 11-1, 11-2, 11-3Q26 11-1, 11-2, 11-3Q27 11-1, 11-2Q28 11-1, 11-2, 11-3Q31 11-1, 11-2, 11-3Q32 11-2, 11-3Q33 11-2, 11-3Q34 11-2, 11-3Q35 11-1, 11-2, 11-3Q36 11-2, 11-3Q37 11-4Q38 11-1, 11-2, 11-3Q39 11-2, 11-3Q47 10-8Q48 10-8Q96 10-3

V

V06 6-6, 6-14

Y

Y10 10-2Y55 8-20Y56 8-17, 8-18

Z

Z04 11-1, 11-2, 11-3Z05 8-20Z21 8-18

Date post:	22-Oct-2015
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97-1188C

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