Transcription
/ Marley NC Class Crossflow Cooling Tower /Field Installation Manual 00-1287D
WARNINGThe location and orientation of the cooling tower can affect the safety of thoseresponsible for installing, servicing or repairing the cooling tower. Since SPX doesnot dictate or determine where the tower is located or how it is oriented, SPX is notresponsible for addressing the safety issues that are affected by the tower’slocation or orientation. The following safety issues should be considered by thoseresponsible for designing the tower installation. Failure to consider and addressthese issues may result in substantial personal injury or death to those involved ininstalling, 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. SPX strongly recommends that you consult a safety engineer tobe sure that all safety considerations have been addressed.SPX 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 SPX Cooling Technologies, Inc and is intended for use in the construction (contractor)and maintenance (owner) of this cooling tower. This document and it’s contents may not be madepublic in any manner, distributed or loaned to others, or reproduced or copied either in whole or partwithout prior written consent of SPX Cooling Technologies, Inc.Eco 5512
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NC CONTENTSGETTING STARTEDABOUT THIS MANUAL . iMEASUREMENT SYSTEM . iiTOOLS AND SUPPLIES . iiJOINT SEALING INSTRUCTIONS . iiiA FEW WORDS ABOUT FASTENERS . vGENERAL DECAL INSTRUCTIONS . viWHO TO CALL . viiSTANDARD FIELD DETAILSACCESS DOOR . 1-1MODULE CONNECTION DETAILS (NC8310 THRU NC8312 ONLY) . 1-2UPPER FAN CYLINDER & FAN GUARD . 1-3VELOCITY RECOVERY STACK . 1-4BASIC INLET PIPING . 1-5INLET PIPING WITH OPTIONAL HC VALVES . 1-6SINGLE INLET PIPING OPTION . 1-7OVERFLOW & DRAIN . 1-10FIELD INSTALLED OPTIONSSUMP . 2-1BOTTOM OUTLET . 2-3BOTTOM OUTLET SCREEN . 2-4SCREEN WITH ANTI-VORTEX PLATE . 2-5FLUME . 2-6WEIR GATE . 2-7FLOAT VALVE FLOAT . 2-8STANDPIPE FLOAT VALVE . 2-9ELECTRIC BASIN HEATERS . 2-10EXTERNAL VIBRATION SWITCH . 2-13MOTOR OUTSIDE AIRSTREAM (MOA) . 3-1FIELD INSTALLED MOTOR . 3-19FIND NUMBER INDEX . 4-1Note: Optional equipment not listed above is installed using separate installation drawings andbills of material. These documents are located within the literature package and should bereviewed prior to starting assembly. Optional equipment may affect assembly sequence.00-1287D
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NC GETTING STARTEDABOUT THIS MANUALTo obtain maximum efficiency, it is strongly recommended that this entire manual be read beforestarting assembly. This assembly manual illustrates the field installation of standard and optional itemsthat your tower may have. Due to shipping limitations these items cannot be installed in the factory.Review all manuals, drawings and bills of material prior to assembly. Contact your Marley salesrepresentative if questions arise.All steel parts are tagged for identification, as shown below.Find NumberM35DescriptionItem NumberStainless SteelDrawing NumberFind 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 number withinthe 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 and inventory the components ofyour cooling tower. Give this number to your Marley sales representative if an item is missing or areplacement item is required.Drawing Number: (Reference only) This is the number of the drawing used to fabricate this item.Description: (Reference only) All steel parts begin with SHEET or ASSEMBLY followed by thesize of the sheet used to fabricate the item or a description of the assembly. Your tower may havea few fiberglass items which begin GRP.Stainless Steel: This indicates when an item has been made from stainless steel. If the item ismade from the standard galvanized material this will not be printed on the tag.Bills of material (BOM) are separate from drawings and this manual. At the top of each bill thereis a Drawing Number and the drawing description which indicates if the items on that bill will be installedper this assembly manual or per a special installation drawing. The find number, item number,description and quantity of items are all cross referenced on the bill of material. If a number is missingor hard to read, check the illustrations in this assembly manual first and then the bill of material tosee if you can find it. As the tower is prepared for assembly, the quantities of each item should bechecked against the bill of material.NEED HELP!If anything is missing or damaged, or you need help of any kind, contact your Marley salesrepresentative as soon as possible. If you need help determining the representative in yourarea please call us at 1-800-4MARLEY or check the internet at www.spxcooling.com.00-1287Di
NC GETTING STARTEDMEASUREMENT 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 the EnglishSystem.TOOLS AND SUPPLIES·HOIST. 2500 pound (1140kg) capacity. For hoisting of motor on towers with field installedmotors or MOA.·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.ii00-1287D
NC GETTING STARTEDJOINT SEALING INSTRUCTIONSSurface preparation instructions:The following information covering surface preparation applies to all sealed joints whether sealerZ11 or strip sealer Z12 or Z13 is being used. Years of experience has shown the instructions on surfacepreparation and sealing details do result in watertight joints. Inadequate attention to these details willresult 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 withacetone. 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 and thefollowing page are referenced throughout this manual. Care should be taken to fill voids and gaps atjoints. After parts have been assembled, trowel excess sealant over joint, taking care to force sealant,back into joint, and not out of joint. Do not use solvent to aid in applying sealer as solvent adverselyaffects bonding of sealant to metal. Care should be taken to avoid leaving holes or air bubbles insealant.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.Water sideof joint.AThis symbol is used throughout the manual toindicate the locations where sealer Z11 is rerefers to a “Type ‘A’ seal” which isquired. Thea 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.FastenerholeZ11 Sealer 3/8" (10mm)diameter beadType A seal(Water on one side of joint)BThis symbol is used throughout the manual toindicate the locations where sealer Z11 is rerefers to a “Type ‘B’ seal” which isquired. Thea 3/8" (10mm) diameter bead of sealer Z11 laidalong the centerline of a row of holes curvingcompletely around each hole it passes. Reference detail at the right.FastenerholeZ11 Sealer 3/8" (10mm)diameter beadType B seal00-1287Diii
NC GETTING STARTEDCThis symbol is used throughout the manual toindicate the locations where sealer Z11 is rerefers to a “Type ‘C’ seal” whichquired. Theis a 3/8" (10mm) diameter bead of sealer Z11 laidcompletely around each hole in a row of holes.Reference detail at the right.Fastener holeSealer 3/8"(10mm)Z11 diameterbeadType C sealApplication instructions for Strip Sealer Z12 & Z13 (Type D, E & F 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 exceptwhere 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 properthickness. 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 eachfastener hole, where required.TypicalFastenerholeDZ12This symbol is used throughout the manual toindicate the locations where a single layer of stripsealer Z12 or Z13 is required. Reference detail atthe right.orZ13Type D sealWater side of joint.EThis 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.FastenerholeZ13Z12Type E sealWater side of joint.FThis symbol is used on distribution basin joint toindicate the locations where two layers of stripsealer are required. Align bottom edge of firststrip sealer Z13 with top edge of bolt holes. Aligntop edge of second strip sealer Z13 with bottomedge of bolt holes. Reference detail at the right.FastenerholeZ13Z13Type F sealiv00-1287D
NC GETTING STARTEDA FEW WORDS ABOUT FASTENERSStainless steel fasteners:Stainless steel fasteners are sensitive to galling. This is when you notice a sudden increasein 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" selflocking 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 areshown 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.FASTENER TORQUEBoltDiameterFastener Torquefoot-lbs.(newton-meters)Galvanized* Stainless Steel3/8"20 (27.1)20 (27.1)1/2"45 (61)27 (37)3/4"150 (203)74 (100)* Values based on fasteners lubricated with anti-seizecompound. (Stainless steel only)Loctite :Critical structural and mechanical attachments require extra protection against the nutsvibrating 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.Z05Z05This symbol is used throughout the manual toindicate the locations where Loctite Z05 is required. Reference details at the right.Typical bolted attachment with threaded endof bolt up or bolt installed horizontally.00-1287Dv
NC GETTING STARTEDGENERAL DECAL INSTRUCTIONSNote: Decals are an important part of the tower assembly. Decals and nameplates provideinstructions, identifications, cautions and warnings deemed necessary for proper maintenance.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. Onlarger 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.vi00-1287D
NC GETTING STARTEDNotes00-1287Dvii
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NC STANDARD FIELD DETAILSSecurity Strap, cut and removeFigure 1-1ACCESS DOORA security strap is installed thru holes in thelatch of the access door at the factory. Cut andremove the security strap shown in Figure 1-1.Note that most of the field installed items areshipped inside the tower.00-1287DPAGE 1-1
NC STANDARD FIELD DETAILSFindNo.Top ModuleDescriptionV19 1/2"x1 1/2" BoltW03 1/2" Lock WasherBEFORE HOISTING!Remove shipping guardsfrom bottom of top module.W23 1/2" Flat WasherX03 1/2" NutV19Clean any dirt and debrisfrom the underside of thetop module skid & beamsbefore hoisting into place.W23W23BEFORE HOISTING! Make sure seal stripsare in place along cased face girts and oneliminator support beams of bottom module. A2" (51mm) gap will exist in seal strip adjacentto fill. If problems exist, contact Marley Rep.W03Bottom ModuleV19X03Figure 1-2AW23Clean any dirt and debrisfrom the underside of thetop module skid & beamsbefore hoisting into place.MODULE CONNECTION DETAILSNC8310 thru NC8312 onlyBefore top module is hoisted into place onbottom module, clean any dirt and debris from theunderside of the top module skid sides and beams.Remove shipping guards from bottom of topmodule. After top module is in place the modulesmay be connected near louver columns as shownin Figure 1-2A, or inside tower on eliminatorface per Figure 1-2B.PAGE 1-2BEFORE HOISTING!Make sure seal strips are inplace along cased face girtsand on eliminator supportbeams of bottom module.If not contact Marley Rep.W23W03X03Figure 1-2B00-1287D
NC STANDARD FIELD DETAILSX11N97D31D34V09V09D32W12W12X01W12Lower fancylinderW21 W01D31V04T07X11 Pre-installed atW12factoryW02X02W02W11 Pre-installed at factoryX02Five 1/2" washers usedW23 as spacers (pre-installedApply a 3/8" (10mm) dia. beadof sealer around the perimeterto eliminate any rattles.Threaded end ofexisting 1/4" bolt(retighten if loose)Fan deckorat factory)Y62 Qty. 1 (pre-installed at factory)Figure 1-3All towers without a velocity recovery stackUPPER FAN CYLINDER & FAN GUARDFor all models without a velocity recoverystack, fan cylinder segments D31 are installed on topof the lower cylinder that extends down from fandeck. Segments are to straddle tower centerline andbe orientated as shown in Figure 1-3. Installationhardware for the cylinder segments has been preinstalled at the factory and must be removed prior tocylinder installation.A single piece fan guard is provided on models NC8301 thru NC8303. Models NC8304 thruNC8312 use a two piece fan guard and require guardsplice hardware. On models with a single piece fanguard, position guard D34 over cylinder and raisecenter to align with holes in fan cylinder. On modelswith a two piece fan guard, guard D32 is installed firstand a splice clip N97 is used to retain guard D34.See the next page for velocity recovery stackinstallation details.00-1287DFindNo.DescriptionT07 3/8"x1" Tap ScrewV04 1/4"x1 1/2" Bolt (all thrd.)V09 3/8"x1 1/2" BoltW01 1/4" Lock WasherW02 3/8" Lock WasherW11 1/4" Oversize WasherW12 3/8" Oversize WasherW21 1/4" Flat WasherW23 1/2" Flat WasherX01 1/4" NutX02 3/8" NutX11 1/4" Self-locking NutPAGE 1-3
NC STANDARD FIELD DETAILSD31 TypicalFan deckX02W02W22Close any opening atcylinder splice and fan deck.X11 Pre-installed at factoryW11 Pre-installed at factoryTwo spacers requiredB49 at each 1/4" attachment(pre-installed at factory)W22FindNo.V07DescriptionV07 3/8"x1" BoltW02 3/8" Lock WasherW11 1/4" Oversize WasherW22 3/8" Flat WasherThreaded end ofexisting 1/4" bolt(retighten if loose)Figure 1-4VELOCITY RECOVERY STACKOn models with a velocity recovery stack,install fiberglass fan cylinder segments D31 perFigure 1-4 on top of lower cylinder that extendsdown from fan deck. Segments are to straddlePAGE 1-4X02 3/8" NutX11 1/4" Self-locking Nuttower centerline. Installation hardware for thecylinder segments has been pre-installed at thefactory and must be removed prior to cylinderinstallation. Fan guard is not required on thesemodels.00-1287D
NC STANDARD FIELD DETAILSInlet piping and fastenersSupplied by others. Fasteners tobe the same material as thedistribution basin.N45Distribution basinCenter section of inlet flumemay be removed if accessfor attaching inlet piping isrequired. Reinstall flumeafter inlet piping is secure.Figure 1-5BASIC INLET PIPINGIf tower is not using the optional HC valves,inlet piping is attached directly to the distributionbasin, see Figure 1-5A. Note that inlet pipingand fasteners are supplied by others. If HC valvesare to be installed, see next page.00-1287DPiping, supports, designof piping and supports,and restraint of lateralpiping loads is theresponsibility of others.,PAGE 1-5
NC STANDARD FIELD DETAILSINLET PIPING WITH OPTIONAL HC VALVESInlet pipingIf HC valves N40 are to be installed, attach asshown in Figure 1-6. A full face gasket N45 is usedbetween valve and distribution basin and a ringgasket N39 is used between valve and inlet piping.Valve may be rotated 90 or 180 if desired.6" & 8" dia.valvessupplied by othersX04or10" dia. valveX06V356" & 8" dia. valvesorV4210" dia. valveN39Half of these bolts arethreaded into tappedholes in valve body, theother half require nuts.Ring gasketwithout bolt circleStainless fastenersare provided withstainless basinsN40Center section of inletflume may be removed ifaccess for attaching valveis required. Reinstallflume after valve is secure.N45Piping, supports, designof piping and supports,and restraint of lateralpiping loads is theresponsibility of others.,Full face gasketwith bolt circleFindNo.DescriptionV32 3/4"x2" BoltV35 3/4"x3" Bolt (all thrd.)V42 7/8"x5" Bolt (all thrd.)6" & 8" dia.valvesW35or10" dia.W36valve6" & 8" dia. valvesPAGE 1-6V46 7/8"x2" BoltW20 7/8" Flat WasherW30 6" & 8" dia.valvesorW20 10" dia.Figure 1-6valveV32 or V46 10" dia. valveW30 3/4" Flat WasherW35 3/4" Sealing WasherW36 7/8" Sealing WasherX04 3/4" NutX06 7/8" Nut00-1287D
NC STANDARD FIELD DETAILSSINGLE INLET PIPING OPTIONIf the tower has been supplied with a singleinlet option, see installation details on pages 1-7thru 1-9.X04 NC8301-04X06 NC8305-12W30 NC8301-04Piping, supports, designof piping and supports,and restraint of lateralpiping loads is theresponsibility of others.W20 NC8305-12,W35 NC8301-04REMOVESHIPPINGFASTENERSW36 NC8305-12Q60V41 NC8301-04EXTERNAL INLET PIPING BYOTHERS. FASTENERS ARESIZED ASSUMING THEFLANGE THICKNESS IS PERANSI B16.1V42 NC8305-12Figure 1-7ASINGLE BOTTOM INLETNC8301-04X04W05 NC8301-04NC8305-12X06W06 NC8305-12Stainless fastenersare provided withstainless basins, orcasingV41 NC8301-04V42 NC8305-12W30 NC8301-04W20 NC8305-12Q60FindNo.REMOVESHIPPINGFASTENERSFigure 1-7BSINGLE SIDE INLET00-1287DDescriptionV41 3/4"x5" Bolt (all thrd.)V42 7/8"x5" Bolt (all thrd.)W05 3/4" Lock WasherW06 7/8" Lock WasherW20 7/8" Flat WasherW30 3/4" Flat WasherX04 3/4" NutX06 7/8" NutPAGE 1-7
NC STANDARD FIELD DETAILSX03Q69Q63 or Q64W03NC8301-08 &NC8310&11X04NC8309&12X06X03Q74AW03Q66Stud BoltsV21RubberBootModelNC8301-08 &NC8310&11W35NC8309&12W36ANC83014 1/16"NC8302Stainless fastenersare provided withstainless basinsNC8301-08 &NC8310&11W30NC8309&12W20NC8303NC8301-08 &7"NC83045"NC830610 7/16"NC83079 3/16"NC830911 7/16"Single Inlet Fan Deck PipingNC83105"NC8311NC83125 3/8"Install pipe support Q74 on to the stud bolts protruding from thefan deck as shown in Figure 1-8A. Prior to installation of Single Inletfan deck piping Q63 or Q64, clean outside of pipe and inside rubberboot protruding from the fan deck. Then apply a thin layer of sealerZ11 to inside of rubber boot. Install the fan deck pipe into boot sothat it butts with the interior pipeand align the flanged end with the hotwater basin inlet along with gasket Q66. When installed, the fandeck piping should be level in relation to the fan deck. Finally, attachpipe support strap Q69 to pipe support as shown.PAGE 1-8V40 NC8309&12Figure 1-8NC8305V36 NC8310&11FindNo.DescriptionV21 1/2"x2" Bolt (all thrd.)V36 3/4"x3" BoltV40 7/8"x3" BoltW03 1/2" Lock WasherW20 7/8" Flat WasherW30 3/4" Flat WasherW35 3/4" Sealing WasherW36 7/8" Sealing WasherX03 1/2" NutX04 3/4" NutX06 7/8" Nut00-1287D
NC STANDARD FIELD DETAILSTOP MODULERemove shipping strapBOTTOM MODULEQ83Figure 1-9Single Bottom InletNC8310 thru NC8312 OnlyModels NC8310 thru NC8312 with the SingleBottom Inlet Option require the installation of aDepend-O-Lok pipe coupling Q83 between thepiping of the top and bottom tower modules. TheDepend-O-Lok includes fasteners, gaskets,00-1287Dmanual closure tool, and detailed instructions forinstallation. "C" clamp, ratchet, and adjustablewrench are optional tools for installation and arenot included.PAGE 1-9
NC STANDARD FIELD DETAILSQ48Collection basindepressed section,Take care not to crossthread the PVC standpipewhen threading into thesteel coupling assembly.FindNo.DescriptionV07W22V07 3/8"x1" BoltW22 3/8" Flat WasherW32W32 3/8" Sealing WasherX02 3/8" NutStainless fastenersare provided withstainless basinsQ18Figure 1-10AStandpipe overflow & drainX02Q47BOVERFLOW & DRAINAll 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 1-10A. Bolt coupling assembly Q47 tobottom 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 (supplied by others) to protect the threads.If the optional coverplate drain and overflowis being used, the cutout in the depressed sectionfor the standpipe has been covered with a drainplate that must have plug Q18 installed per Figure1-10B. If coverplate drain is not being plumbed,install pipe plug Q18 per Figure 1-10C.PAGE 1-10Figure 1-10BFloor drain plugQ18Figure 1-10CCoverplate drain plug00-1287D
NC FIELD INSTALLED OPTIONSQ04FindNo.Collection basindepressed sectionDescriptionV09 3/8"x1 1/2" BoltW12 3/8" Oversize WasherW22 3/8" Flat WasherW32 3/8" Sealing WasherX02 3/8" NutStainless steel fasteners must beused on stainless steel basins toavoid loss of connection.V09Q07Q06Fiberglasssumps onlyW22W32W12CAfter sump is installedapply a bead of sealeraround perimeter of sump,force into seam and spreadout evenly.(underoversizewasher)AY10Fiberglass sump onlyApply a beadwhere strips butt.X02Install two layers thick with cornersoverlapped. Do not leave gaps where stripsbutt. Sump may be used as a template to drill7/16" (11mm) diameter holes in gasket strips.Figure 2-1SumpQ07 Drain plug(Steel sump only)SUMPSump installation is per Figure 2-1. 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) dia. holes thru00-1287Dgasket. 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).PAGE 2-1
NC FIELD INSTALLED OPTIONSSump ScreenOn sumps with high flows ascreen assembly with anti-vortexplate is used. (See "Screen withanti-vortex plate" installationdetail.)For additional leak protectionapply sealer under bolt headand washerA sump plate is shipped wiredinside fiberglass sumps only.Remove wire and install usingoutlet piping fasteners (supplied byothers).Q14Outlet Piping and FastenersSupplied by othersFasteners must be stainless instainless basinsSee Figure 2-2 for the typical attachmentof customer piping using gasket Q14. A sumpplate is used on the inside of fiberglass sumpsonly. After piping has been installed set sumpscreen (if required) in place over the sump opening. On sumps with a higher flows, a screenassembly with anti-vortex plate is used instea
/ Marley NC Class Crossflow Cooling Tower/ Field Installation Manual 00-1287D. WARNING The location and orientation of the cooling tower can affect the safety of those responsible for installing, servicing or repairing the cooling tower. . This manual uses both, the English System and the Système International d'Unitès (S.I.)
