Pioneer I&O

8/2/2019 Pioneer I&O

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Delta Cooling Towers, Inc.

PioneerForced Draft Cooling

Towers

Installation, Operation and Maintenance

Manual


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Table of Contents

Delta Cooling Towers Principle of Cooling Towers..1Cooling Tower Terms & Definitions.1

Installation Safety Procedures.... 2

Location of the Cooling Tower.. 2Hoisting........ 2Cooling Tower Installation.2Cold Weather Protection.3Piping and Tower Connections.. 4Duct to Blower Housing Installation. 4PVC Solvent Cementing Instructions 5

Operation V-Belt Alignment and Tensioning..... 5Initial Start-up.....5Operating Design Condition Checklist..6

Maintenance Water Treatment........ 6Disassembly and Cleaning.... 7Preventative Maintenance Checklist.... 8Recommended Replacement Parts...8

Important: Deltas cooling towers have been designed to provide trouble-free service over an extended period of time. To obtainthe design performance, it is necessary that the cooling tower be installed, operated and maintained as prescribed inthese instructions.

Only persons possessing the skill and experience described herein should attempt to install this equipment. Prior toinstallation, these instructions should be read carefully by the person who is to install the cooling tower to be certain

that its installation, operation and maintenance are thoroughly understood.

Questions regarding the installation, operation or maintenance of this equipment should be directed to Delta CoolingTowers, Inc., Rockaway, New Jersey, (Telephone: 973/586-2201).

Step-by-step instructions contained in this brochure are based on normal installation conditions only. Abnormal orunusual combinations of field conditions should be brought to the attention of Delta Cooling Towers or itsrepresentative prior to installation of the equipment. The information contained herein is subject to change withoutnotice in the interest of product improvement.

Rev. 02-17-04


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Delta Cooling Towers, Inc.

Prin ciple of Cooling Tow ers

All Cooling Towers operate on the principleof removing heat from water by evaporating

a small portion of the water that isrecirculated through the unit.

The heat that is removed is called thelatent heat of vaporization.

Each one pound of water that isevaporated removes approximately 1,000BTU's in the form of latent heat.

Cooling Tow er Terms andDefinit ions

BTU - A BTU is the heat energy required toraise the temperature of one pound of waterone degree Fahrenheit in the range from32 F. to 212 F.

Coolin g Range - The difference intemperature between the hot water enteringthe tower and the cold water leaving thetower is the cooling range.

Approach - The difference between thetemperature of the cold water leaving thetower and the wet-bulb temperature of theair is known as the approach. The approachfixes the operating temperature of the towerand is a most important parameter in

determining both tower size and cost.

Drift - The water entrained in the air flowand discharged to the atmosphere. Drift lossdoes not include water lost by evaporation.Proper tower design and operation canminimize drift loss.

Heat Load - The amount of heat to beremoved from the circulating water throughthe tower. Heat load is equal to watercirculation rate (gpm) times the coolingrange times 500 and is expressed in BTU/hr.Heat load is also an important parameter indetermining tower size and cost.

Ton - An evaporative cooling ton is 15,000

BTU's per hour.

Wet-Bulb Temperature - The lowesttemperature that water theoretically canreach by evaporation. Wet-BulbTemperature is an extremely importantparameter in towerselection and design and should bemeasured by a psychrometer.

Pumping Head - The pressure required tpump the water from the tower basin,through the entire system and return to thtop of the tower.

Make-Up - The amount of water required

to replace normal losses caused by bleed-off, drift, and evaporation.

Bleed Off (Blowdown) - The circulatingwater in the tower which is discharged towaste to help keep the dissolved solidsconcentrating in the water below amaximum allowable limit. As a result ofevaporation, dissolved solids concentrationwill continually increase unless reduced bybleed off.

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Installation of Your Pioneer Cooling Tower

Safety Procedures

CAUTI ON:Observe safety procedures during

installation and whenever construction isunder way.

Always disconnect & lock out mainpower supply before working on motors andother electrical equipment.

Stand clear of rotating equipmentduring start-up.

Before start-up replace all guardsremoved during installation, that protectpinch areas of V-belts, sheaves and otherrotating equipment.

Avoid contact with open flame or heat

source that could cause combustion.

Observe recommended safety precautionswhenever construction involving welding, acutting torch, a blowtorch or any other suchequipment is under way within theimmediate area.

How t o Prevent Reverse

Siphoning:Reverse siphoning is a back flow of non-potable, recirculating water into a potablewater system which can occur through themake-up float valve assembly located in thewater reservoir of a cooling tower.

Should the valve malfunction, blockageof the overflow or outlet lines would cause ahigh water level in the reservoir, causingthe make-up water pressure to drop belowatmospheric pressure creating a vacuum atthe make-up inlet.To prevent reverse siphoning, install acheck valve in the water make-up supplyline to the cooling tower.

NOTE: Do not cap the overflow connection.

Location of t he Pioneer

Cooling TowerProper location of the cooling tower isessential to its satisfactory operation. Thefollowing are recommendations forselecting a cooling tower location. Consultthe factory or our representatives foradditional assistance in selecting equipmentand equipment locations.

Select an open site having anunobstructed air supply and free airmotion.

If the site is adjacent to a wall or other

structure that blocks prevailing winds, installthe coolingtower so the topdischarge isslightly higher than the structure. Locateblower at the farthest point from thestructure, facing the direction of theprevailing winds.

Gravity drain to an indoor storageSump requires proper head differential andpipe design considerations. Allowance mustbe given based on flow, pipe size, pipinglayout and distance cooling tower is locatedfrom the indoor storage sump. (See chartpage 3)

Should it be necessary to locate thecooling tower near walls, within enclosures,or indoors, choose a location that will notrestrict airflow. Do not install the coolingtower in a well or below the level of anobstruction that might impede air discharge,

cause short circuit of air flow, or result inrecirculation of the discharge air back intothe blowers.

Do not locate the cooling tower nearheat-generating equipment, exhaust ventsor pipes which could interfere with thetemperature of inlet air and raise theambient wet-bulb temperature to thecooling tower.

Do not install a canopy or roof of anykind over the cooling tower that woulddeflect discharge air back down around thecooling tower and cause recirculation of thedischarge air back into the blowers.

Hoisting

Cooling TowerFor roof mounted installations, it isrecommended that a hoist using two ormore safety slings and spreader bars, asshown in the illustration, be used-to lift thecooling tower onto the building.

Secure the safety slings completely aroundand under the cooling tower. Providepadding to protect the edges of thepolyethylene shell at points of sling contactThe slings should be secured in a girdle

fashion for a double secure point of lift.Slings should be brought up snug aroundthe tower before lifting onto the building.

NOTE: Do not use guy wire U-bolts forhoisting.

Blower AssemblyThe blower assembly should be hoistedseparately onto the building, prior to theremoval of the shipping skid, in the samemanner as the cooling tower.

Note: Do not use blower support frame forhoisting.

Any questions regarding hoisting for roofmounted installations should be directed toDelta.

Cooling Tow er I nstallationDelta cooling towers have been designed tprovide maximum performance, long lifeand trouble-free service. To assure optimuperformance, the followingrecommendations should be followed asclosely as possible.

Positioning t he Tower

The cooling tower should be installed on acontinuous firm, smooth and level concretesteel or wood foundation.

Note: The tower must be anchored to thefoundation with guy wires using the foU-bolts provided at the top of the coolingtower shell. Hand tightening of guy wires issufficient. Do not over-tension.

Spacing for piping and service access shoube considered when positioning the coolingtower. Also to insure an adequate positivesuction head, the pump should be locatedbelow the bottom of the cooling towersump.

I ndoor installationTypically, cooling towers are placed outsideeither on the roof or adjacent to a buildingIf the situation dictates indoor installation,make sure there is ample fresh air availablearound the blower inlets of the tower.Restricted amounts of fresh air willlead topoor tower performance. It is alsonecessary to attach a duct to the towerdischarge to convey the hot,humid air tothe outside. All ducting should beindependently supported and be kept asshort and straight as possible. The duct siz

must not be smaller than the inlet and


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discharge openings. Blowers may requireadjustment to accommodate ducting forindoor installation. Consult the factory forthe recommended motor and drive selectionwhen duct exterior static pressure (ESP) is1/8 W.C. or greater. It is recommendedthat the inlet and discharge ducting bescreened to prevent foreign objects fromentering. Should prevailing winds blow intoa horizontal discharge, it is recommended

that a suitable windbreak be installedseveral feet away.

Cold Weather Prot ectionThe cooling tower may require protectionagainst freezing at light heat loads when thewet-bulb temperature is under 32F, orduring shutdown when the temperaturedrops below 32F.

The following methods arerecommended for use with Delta coolingtowers for protection during cold weatherconditions. Recommended equipment isoptional and may be ordered from thefactory. Consult the factory for furtherinformation on which equipment to choosefor your specific application.

Separate I ndoor SumpThis method is a virtually foolproof anti-freeze protection system with the addedadvantage of minimum maintenance. Theindoor sump tank should be large enough tofill the entire recirculation system withoutdanger of pump cavitation. As a generalrule, the tank should be sized to hold threetimes the rate of circulation in gallons perminute (gpm).

The tank should be provided with

properly sized overflow, makeup, drain andsuction connections. When a separate sumptank is ordered with a cooling tower, thewater makeup valve assembly and theoverflow and drain connections are installedin the indoor sump only. A bottom outletcan be provided for gravity drain to indoorsump tank installations.

When a sump tank is used, the coolingtower should be located high enough aboveit to allow free cold water gravity drain, asthe chart below outlines.

Gravity DrainOutlet Size Selection ChartOutlet Size (inches)

2 3 4 6

Head Feet GPM

Notes: The above gpm flow rates, for theoutlet sizes shown, are calculated for coldwater gravity drain through piping designedfor direct and short horizontal runs beforedropping vertically to the indoor sump tank,See illustration on page 6.

Long distance horizontal pipe runs, as wellas excessive turns, may cause pressurelosses that prevent free gravity flow througthe outlet sizes shown. Consult Delta forfurther information.

Electr ic I mm ersion HeaterCooling towers ordered with anti-freezesystems are shipped with a protective seatsecured under the immersion heaterelement that is to remain in place duringoperation to protect the polyethylene shellfrom direct contact with the heater elemen

Note: This protective seat is not a shippingbrace and must not be removed.

0.5 20 50 75 165

1 25 65 95 215

2 35 90 135 305

3 40 110 165 370

4 47 125 190 430

5 53 140 215 475

6 57 155 235 525

7 62 165 250 565

8 66 180 270 600

9 70 190 285 645

10 74 200 300 675

12 81 220 325 715

15 90 245 365 825

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Thermostat ic On-Off Contr olA thermostatically controlled blower for on-off operation should be considered as anenergy-saving feature during winteroperation. The thermostatic control can befield set to insure automatic blower shut-down when cold water drops below designtemperature, as well as blower start-upwhen cold water rises to designtemperature. A thermostatic control

provides excellent cooling tower anti-freezeprotection while reducing operating coststhrough out cold weather operation.

PVC Distribu ti on systemTo prevent damage to the PVC distributionsystem during cold weather shut-down,install an automatic or manual drain linefrom the hot water inlet piping as close tothe cooling tower inlet as possible. Locatethis drain line to allow the water to draineither to waste or to an indoor storage tank.This precaution will prevent water frombeing trapped and possibly freezing insidethe distribution system.

PipingWhen the cooling tower is located outdoors,adequate measures including the use ofheat tracing tape and insulation should beconsidered to protect outdoor water linesfrom freezing.

Piping and Tow er

Connections Piping should be adequately sizedaccording to accepted standard practices.Refer to cooling tower drawings for size andtypes of cooling tower connectionsfurnished as standard.

On multiple tower installations, pipesizing should balance pressure drops toprovide equal inlet pressures. Equalizingfittings can be provided in cooling towersumps and are available as an option fromthe factory. Each unit should be valvedseparately to allow for flow balance orisolation from service.

All supply and return piping must beindependently supported. See page 5 forinstructions for the preparation andcementing of internal and external piping.

An inlet pressure gauge should beinstalled immediately before the coolingtower inlet connection. See OperatingDesign Condition Checklist page 6, andillustration page 3.

The makeup connection is providedwith a float valve and ball assembly forproper water level control.

The overflow connection includes anelbow with extension pipe that drops belowthe water level in the tower sump.

Note: Never block overflow connection.Water should beallowed to flow freelywithout obstruction. See how to preventreverse siphoning page 2.

The outlet connections for pumpsuction applications are provided with avortex breaker.

Note: For gravity flow applications, a vortex

breaker is not required or provided. A ventpipe or bleed valve should be installed atthe highest elbow of the piping system,to prevent air locks and insure free flow ofwater. Air locks can cause gravity flowrestriction resulting in excessive wateraccumulation and eventual overflow of thecooling tower.

The outlet, makeup and overflowconnections are notched at the outer ridgeand should be held in position with thenotch at 12 oclock. This is to insure properposition of the vortex breaker, float valve,assembly and overflow extension which areinternal and not visible from the exterior of

the cooling tower.

The inlet fitting of models DT-10through DT-40 is notched in the samemanner as described above to insure properspray nozzle position.

PVC bulkhead connections must beheld steady and in their factory-installedpositions when the connecting piping isbeing installed.

When threading pipe to the bulkheadfittings, do not allow fittings to turn.Turning can loosen the locknut or squeezethe gasket out of position and may causeleaks. PVC bulkhead fittings should betightened with a chain wrench so that thegaskets sit property between the coolingtower shell and the fitting. Do not overtighten. A bulkhead fitting that is too tightor too loose can cause the gasket to crimp

or squeeze away from the locknut, causingleaks around these connections.

Duct To Blow er Housing

Instal lat ion To install the cooling tower air duct tothe blower housing, place the lip of the ducover the lip of the blower housing as showWith seven screws supplied, fasten duct tohousing using two screws on each side andthree on the bottom.

On models DT-10 through DT-25, install thduct sides outside the blower housing.

On all other models, install the duct sidesinside the blower housing.

Install bottom of the duct to outside of theblower housing on all models.

Seal off air leaks around the duct withduct tape.

Note: the blower support frame must bebolted to the foundation. The assembly isfurnished with pre-drilled bolt holes.Shimming may be required for perfect fit.

Damage to painted surface of blower

housing during installation must be repaireimmediately to prevent corrosion.


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PVC Solven t Cemen t ing

Instruct ionsThe following procedure is recommendedfor the preparation and cementing ofinternal and external piping for Deltacooling towers: Cut ends of pipe square using a handsaw and miter box. Tube cutters withwheels designed for use with PVC are

acceptable, providing they do not leave araised bead on the outside diameter of thepipe.

Use a chamfering tool or file to put a10 to 15 chamfer on the end of the pipe.Lightly sand the area to be cemented toremove gloss. Using a clean rag, wipe pipesurface and fitting socket to remove dirt,moisture and grease, Acetone or similarsolvent is recommended for cleaning.

Check dry fit of pipe and fitting byinserting the pipe at least 1/3 of the wayinto the fitting. Position pipe and fitting toassure alignment. Pipe and fitting should be

at same temperature condition.

V-belt Alignm ent and

TensioningProper belt tension is the mostimportant factor in the successful operationof a V-belt drive. The belt tension should bechecked frequently during the first 24 hoursof operation and then periodically on amaintenance schedule. Loose belts causeslippage which reducesair flow and canadversely affect belt life and cooling towerperformance.

Using a clean, natural bristle brushabout and size of the pipe diameter,apply P-70 primer to the fitting socket,

Apply primer with a scrubbing motion untilthe surface is penetrated. Primer shouldnever be applied with a rag. Repeatedapplications may be necessary to achievethe desired dissolving action. In the samemanner, apply primer to the pipe surfaceequal to the depth of the fitting socket,

making sure the surface is well penetrated.Reapply primer to the fitting socket to makesure it is still wet.

While both surfaces are still wet withprimer, use a clean brush to apply a liberalcoat of solvent cement to the male end ofthe pipe. The amount should be more thansufficient to fill any gap.

The following belt tensioning procedure is

recommended: Check that the driver and drivensheaves are in alignment by placing astraight edge across the sheaves at fourcontact points as shown. If realignment isrequired, loosen the motor sheave bushingscrews and align the sheaves.

To tension the belts, adjust the motorbase so that the belt will deflect about when moderate pressure is applied to the

While both surfaces are still wet withsolvent cement, insert the pipe into thesocket with a quarter-turn twisting motion.The pipe must be inserted the full length othe socket.

The application of solvent cement topipe and fitting, and the insertion of thepipe into the fitting, should be completed iless than one minute. If necessary, two

persons should apply solvent cement to thepipe and fitting simultaneously.

Hold the joint together forapproximately 30 seconds until bothsurfaces are firmly gripped.

After assembly, a properly made joint willusually show a bead of cement around itsentire perimeter. This should be brushedoff.

It is recommended that the joint beallowed to cure for 24 ours before pressuretesting.

belt midway between the sheaves as show

in the illustration.

Note: Excessive belt tension can shortenbelt and bearing life. Loose belts ormisaligned sheaves can cause unseatingand breakage of belts. Replacement ofmultiple belt systems should be made inmatched sets.

I nit ial Start- Up Clean accumulated debris from insideshell bottom.

Check that blower fan motor isproperly wired for counter-clockwise (ccw)

rotation of the blower wheel as viewed fromthe sheave side of the blower assembly.Reverse leads will cause incorrect rotationand inhibit required airflow.

Fan bearings should be re-lubricated tower has been in the field three months olonger prior to start-up.

Check sheave alignment and belttension. See illustration.

Fill cold water sump to overflow level.

O eration of Your Pioneer Cooling Tower.

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The standard make-up valve assemblyis shipped as shown with the plastic floatball against the tower side to preventdamage. To set the ball for properoperation, loosen the thumb screw on thefulcrum arm and rotate until a 10 operatinglevel is obtained (measured from the towerbottom vertically upward to the midpoint ofthe float ball). It is recommended that ashut-off valve be installed in the make-up

line. See how to prevent reverse siphoningpage 2.

Water recirculation pump(s) should beprimed and all piping below the towersump filled with water. Check pump forproper shaft rotation.

Start water recirculation pump(s) andadjust flow to produce proper inlet spraypressure. An inlet pressure gauge should beinstalled immediately before the cooling

tower inlet connection.

Water TreatmentThe Delta cooling tower shell and internalcomponents are fabricated of corrosion-resistant plastics and are resistant to watertreatment chemicals including common

fungicides and bactericides.Follow appropriate water treatment

practices as required and take frequentsample tests to avoid possible watercontamination. We also recommend watertreatment maintenance as a measure ofprotection for the environmentin thevicinity of any cooling tower or evaporativecondenser equipment.

Check spray pattern from nozzle(s) tobe sure there is no clogging, Remove drifteliminators for nozzle inspection, thenreturn to proper position.

Start fan motor and check amperageand voltage against motor nameplate data.

After 24 hours of operation, check belttension and adjust if necessary. See page 5.

Operat ing DesignCondit ion Checklist For proper operation and maximumefficiency of the cooling tower, the followingoperating design conditions are essential:

The flow rate of the cooling towermust be as close to the design gpm aspossible. The distribution system, includingspray nozzles, are provided for the designflow condition. Under-pumping or over-pumping will cause the cooling tower toperform inefficiently.

Design pressure at the inletconnection must be maintained for properwater distribution. If the pressure is less orgreater than the design, proper waterdispersion over the internal wet decking willbe impaired. If inlet pressure is low, waterspray will not cover the entire wet deckingsurface. This causes channeling of air anddoes not make maximum use of the heattransfer media. High inlet pressures willcause the water to over-spray the wetdecking media, hit the internal side walls ofthe tower shell and drop in a vertical flowalong the shell walls without the opportunityfor maximum water / air contact through

To determine the appropriate watertreatment practices for your particularapplication, it is suggested that you contacta water treatment firm for their

recommendation. A list of water treatmentfirms is available foryour reference.

It is not necessarily complete nor do werecommend a specific firm. The list will bemailed to you on request.Bleed off is also important to water quality.Evaporation of the recirculated water doesnot remove the dissolved solids that arepresent in the water. Without bleed off, thecontinual buildup of these solids will impairthe proper functioning of the piping andother equipment in the system.

the heat transfer media. Excessive highspray pressure may also cause wet deckingfatigue and damage. The nozzles furnishedwith standard cooling towers are sized for gpm/ton, requiring 10 psi inlet pressure formodelsDT-50 though DT-100, and 7 psi inletpressure for models DT- 10 through DT- 4

This standard may vary when the designflow is less or greater than 3 gpm/ ton.

Alternate orifice nozzles will be provided inorder to maintain the proper inlet pressurerequirement. Correct flow rates and inletpressures should be determined prior tocompletion of system installation.

Blower motors must be properlywired for counter-clockwise (ccw) rotationof the blower wheel as viewed from thesheave side of the blower assembly.Reversed leads will cause incorrect rotationand inhibit required air distribution.

Note: The blower must always operate witwater circulating through the cooling towerto prevent motor overload.

The maximum operating inlet watertemperature should not exceed 140 F.

Nozzle Inlet

Model Size Pressure

T-50 3 gpm/ 10 psithrough tonT -100

T-10 3 gpm/ 7 psithrough tonT-40

A bleed line can be connected in anypart of the system with routing to thesewer. Normally, it is most desirable tomake this connection in the hot water line

at the cooling tower. A petcock type valve,installed in the bleed line for proper controis recommended. The required amount ofbleed-off water must be substituted withproperly controlled amounts of make-upwater.

Maintenance of Your Pioneer Cooling Tower.

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Disassembly and Cleaning

For Pioneer Models DT-10

thr ough DT-40

Remove the drift eliminator from thecooling tower. It is flexible enough to pushthe outer perimeter toward the center and

lift over the top lip of the cooling towershell. Begin at one point and work carefullyaround the entire circumference of the drifteliminator.

Models DT-30 and DT-40 are designedwithout a top lip so the drift eliminator canbe easily lifted up and away from the shell.

Remove the water distribution spraysystem from inside the cooling tower. Thespray system is installed across the top ofthe tower directly under the drift eliminator.Disconnect locknuts at each end of systemand remove piping by elongating top oftower shell slightly.

Remove the wet decking from thecooling tower shell using the plastic handstraps attached for lifting. The wet deckinghas a smaller diameter than the drifteliminator and will lift easily out of the shellonce the distribution spray system isremoved.

When the internal components are

removed the empty shell can be cleanedand inspected, It is recommended that thewater distribution laterals and nozzles becleaned and flushed before reassembly.

To reassemble components, reversethe above procedure.

Before installing the drift eliminator,pump water through the distribution systemto be sure there is a good spray pattern andproper water distribution over the wetdecking surface.

For Pioneer Models T-50 t hrough

T-100

Same procedure as above except:

These models are designed so the drifteliminator can be easily lifted up and awayfrom the cooling tower shell. The spraytree sections of the water distribution

system are threaded to a coupling andunscrew easily. Hold and turn the entireriser below the lateral and nozzles, thencarefully remove the whole assembly.

The wet decking can now be easilyremoved using the plastic hand straps

attached for lifting.

Drift Eliminator

Distribution SpraySystem

Wet Decking

Blower Housing

Tower Shell

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Preventative Maintenance

Checklist

Pioneer

RecommendedReplacement Part s

To avoid costly cooling tower downtime, thefollowing replacement parts should becarried in inventory at the installation site: V-belts Blower bearings

Make-up float, or complete make-upvalve assembly

Blower shaft Blower motor Or, a complete blower assembly

including bearings, shaft, sheaves, V-belts and motor.

When ordering, include model number andserial number of the cooling tower as itappears on the tower nameplate.

Under normal conditions, shipment offactory replacement parts is made within

one day after the order is received. Sparepumps and pump parts s well as controlpanel components, such as fuses andheaters for magnetic starters, are alsoavailable.

Procedure Mont hly Every 3 Mont hs Every 6 Mont hs

Inspect general condition of cooling tower. (it isnever necessary to scrape or paint a Delta CoolingTower.)

Check water level in cold water basin.

Adjust if necessary.

Check float ball and make-up valve for properoperation.

Check line voltage, motor amperage and fan wheelrpm.

Check belt tension and general condition of V-belts.

Clean outside of blower motor to help assure propercooling.

Lubricate blower bearings and fan motor using a lowpressure grease gun.

Check blower wheel for dirt buildup which can causeunbalance and vibration

Clean and flush cold water basin.

Lubricate motor base and adjusting screw.

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Delt a Cooling Towers

CONDITIONS OF SALE AND WARRANTY

Form t-1170, Effective 4/98 1980 Delta Cooling TowersAll Rights Reserved

Terms and Conditions1. Sale Not a Consumer Transaction: Buyer agrees

that the purchase of D eltas Products (hereinafterProduct) is not for consumer, household or familypurposes.

2. Agreement of Sale: A cceptance: Any acceptancecontained herein is expressly made conditional onBuyers assent to any terms contained herin that areadditional to or different from those proposed byBuyer in its purchase order and hence any terms andprovisions of Buyers purchase order which areinconsistent with the terms and conditions hereofshall not be binding on the Seller. Unless Buyer shallnotify Seller in writing to the contrary as soon aspracticable after receipt hereof, acceptance of theterms and conditions hereof by Buyer shall bedeemed made and, in the absence of suchnotification the sale and shipment by the Seller of thegoods covered hereby shall be conclusively deemedto be subject to the terms and conditions hereof.

3. Entire Contract: This contract constitutes the finaland entire agreement between Seller and Buyer andany prior or contemporaneous understandings oragreements, oral or written are merged herein.The sales and technical representatives of the Sellerare not authorized to make warranties about theproduct. Sellers representatives oral statements donot constitute warranties, shall not be relied upon bythe Buyer, and are not part of the contract for sale.

Any product-literature and operating instructions, andstatements contained therein, do not constitutewarranties, shall not be relied upon by the Buyer andare not part of the contract for sale. The entirecontract is embodied in this writing and no otherwarranties are given beyond those set forth in thiscontract. This writing constitutes the final writtenexpression of the parties agreement, and it is acomplete an exclusive statement of the terms of theagreement.

4. Prices: Except where expressly agreed, all pricesare subject to change without notice. If there is adelay in approval of drawings related to this contractbeyond 30 days, an escalation in selling price may

occur due to a rise in labor and/or material prices.5. Taxes: The price of goods does not include sales,

use, excise, ad valorem, property or other taxes nowor hereinafter imposed, directly or indirectly by anygovernmental authority or agency with respect to themanufacture, production, sale, delivery, consumptionor use of goods covered by this contract. Buyer shallpay such taxes directly or reimburse Seller for anysuch taxes which it may be required to pay.

6. Payment: The specific terms of payment are asspecified in writing by Seller. If the Buyer shall fail tomake any payments in accordance with the termsand provisions hereof, the Seller, in addition to itsother rights and remedies, but not in limitationthereof, may, at its option, defer shipments ordeliveries hereunder, or under any other contractwith the Buyer, except upon receipt of satisfactorysecurity or of cash before shipment.

7. Shipment; Risk of Loss Title: The goods shall beshipped FOB Sellers shippi ng points . Risk of

loss shall pass to Buyer upon delivery to the carrier.Title shall pass to Buyer on delivery to the carrier.8. Delivery; Delays in Deliveries: The date of delivery

provided herein is an approximation based onSellers best judgement. Seller shall be excused fordelay in delivery, may suspend performance andshall under no circumstances be responsible forfailure to fill any orders when due to acts of God or ofthe public enemy; fires; floods; riots; strikes, freightembargos or transportation delays; shortage of labor;inability to secure fuel; material supplies, or power atcurent prices or on account of shortages thereof; anyexisting or future laws or acts of the Federal or of anyState Government (including specifically, but notexlusively, any orders, rules or regulations issued byany official or agency of any such government).

9. LIMITED WARRANTY: Seller warrants that thecylindrical, seamless molded polyethylene shell of

the Product shall be free from defects in materialsand workmanship and will not peel, chip, rust or needpainting for a period of fifteen (15) years from thedate of shipment. Since the Product once inoperation is under the sole control of the User, thiswarranty is further subject to and shall be applicableonly if all of the following conditions are met:a. The Product has been properly erected in

accordance with the Sellers instructions and inaccordance with good installation practices;

b. Sellers instructions and recommendations as tooperation and maintenance have been followed,including those contained in the manual furnishedwith the Product;

c. The Product has been used under normaloperating conditions;

d. The Product has not been affected by misuse,neglect, accident or abrasion;

e. The User has not attempted or performedcorrective work on the Product without Sellersprior written consent; and

f. The Seller shall have received notice of any defectno later than 10 days after User first hasknowledge of same.

Except where expressly noted otherwise, Sellerwarrants all Product componets, other than movingparts, against defects in workmanship and materialfor a period of one (1) year from the date ofshipment, provided the equipment has been properlymanintained and operated under normal conditions.Motors and blowers carry a normal manufacturersone (1) year warranty against defects inworkmanship and materials beginning from the dateof shipment and subject to the same condtions ofproper use and operation as other components of theProduct. Bearings, pulleys, belts or other movingparts and components are sold without any warranty.

10. DISCLAIMER OF ALL OTHER WARRANTIES ANDGUARANTEES: The aforesaid warranty is thesole and only warranty or guarantee relating tothe product provided u nder this Agreement, and

is in substituti on for, and in lieu of, any and allother warranties, written or oral, expressed,implied or statutory includi ng any warranty ofmerchantability or of fitness for a particularpurpose.

11. CORRECTION OF DEFECTS AS SOLE REMEDY:If the Buyer/User gives the Seller written notice ofdefects in the product within any period of warrantydescribed herein and the Sellers inspection confirmsthe existence of such defect, the Seller, at its option,shall correct the defect or defects either by repair,providing repair tools and instrutions, or replacement,FOB Sellers shipping point, or refund the purchaseprice of the product. The remedies providedBuyer/User herein for breach of Sellers warrantyshall be exclusive.No expense, liability or responsibility will be assumedby the Seller for repairs made by other than Sellersagent without written authority from the Seller.Remedial action, in the manner and for the period of

time provided above, shall constitute fulfillment of allliabilities of Seller to the Buyer / User, andBuyer/Users sole remedy hereunder, whether basedon contract, tort or otherwise.The sole purpose of stipulated exlusive remedy shallbe to provide the User with free repair andreplacement of defective parts in the mannerprovided herein. This exclusive remedy shall not bedeeded to have failed of its essential purpose so longas the Seller is willing and able to repair or replacedefective parts in the prescribed manner.

An action for breach of this limited warranty or anyother action otherwise arising out of this contractmust be commenced within one (1) year from thedate the right, claim, demand or cause of action shallfirst occur, or be barred forever.

12. STATEMENT OF BUYER/USERSRESPONSIBILITIES: It is the sole responsibili ty

of the Buyer/User, and not in any manner theresponsibility of t he Seller, to test, control andproperly dispose of all discharges, both gaseousand liquid, from the product to assure:a. Compliance with all federal, state and

municipal (or any political subdivisionthereof) statutes, laws, codes, ordinances,rules and regulations concerning theenvironment, including but not limited to: TheClean Air Act, 42 U.S.C. S7401 et seq.; TheClean Water Act, 33 U.S.C. S1251 et seq.; TheComprehensive Environmental Response,Compensation and Liability Act, 42 U.S.C.S9601 et seq.; The Toxic Substance Contro lAct, 15 U.S.C. S2601 et seq.; The ResourceConservation and Recovery Act , 42 U.S.C.S6901 et seq.; The Safe Drinking Water Act, 21U.S.C. S349 et seq.; The NationalEnvironmental Policy A ct, 42 U.S.C. S4321etseq.; Occupational Safety and Health Act, 29U.S.C. S651 et seq.; together with anyamendments thereto and regulationspromulgated thereunder;

b. Adequate protection for the health and safetyof people, property, wildlife and environment;and

c. Adequate protection for all persons, includingemployees, coming in contact with the Productand its discharges for all purposes including,without l imitation, installation, maintenance,use and repair of the Product.

It is also the sole responsibility of the Buyer/Userto:d. Maintain the Product in accordance with the

Installation, Operating and MaintenanceInstructions;

e. Comply with the maintenance checklistcontained in the Installation, Operating andMaintenance Instructions; and

f. Periodically monitor and test the Product toverify proper functioning, and to insure the

Product performs properly.It is further the sole responsibility of theBuyer/User to comply with all laws, codes, andregulations relating to the Product and its useand Seller makes no warranty or representationwith respect thereto.Buyer/User assumes the responsibility forproviding and installing all devices required toprotect the health and safety of people, property,wildlife and the environment.Buyer/User acknowledges having read theInstallation, Operating and MaintenanceInstructions, includi ng all warnings containedtherein, and is aware of the precautionsrecommended for protection to the health andsafety of people, property, wildlife, and theenvironment, including employees coming incontact with the Product discharges.Buyer/User assumes full responsibility to assureproper use of the Product, including the

determination and contr ol of what chemicals,pollutants and toxic substances are introducedinto the product, and the determination andcontrol of all discharges from the Product.

13. DISCLAIMER OF TORT, CONTRACT,STATUTORY AND ALL OTHER LIABILITY: TheSeller hereby disclaims all tort, contract orstatutory liability to the Buyer/User, and anyother basis of liability to Buyer/User regardingclaims for injury or damage to people, property,wildlife, or the environment, including, withoutlimitation, claims of negligence, strict productsliability, breach of warranty (except the limitedwarranties as provided in paragraph 9 entitled:Li mited Warranty), breach of contract orviolation of stature, law, ordinance, code, rule or


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regulation. Seller also disclaims any liability tothe Buyer/User in contribution or indemnificationfor the Buyer/Users liability or alleged liability toany third person or entity for injury or damage topeople, property, wildlife or the environment.Without limiting the generality of the foregoing,Seller disclaims liability for all claims forcompensatory, consequential, incidental or otherdamages and for damages for personal injuryand property damage, loss of use, revenue orprofit, injury to good will, inability to fulfil lcontracts to third p arties, other economic loss,response costs and other environmental cl ean-up costs or other damages arising out of theactual, alleged or threatened discharge,

dispersal, release or escape of pollutants,contaminants, hazardous waste, or liquid orgaseous materials discharged from or throughthe Product and any loss, cost or expense arisingout of any governmental or other direction orrequest to test for, monitor, clean-up, remove,contain, treat, detoxify or neutralize theforegoing.Seller also disclaims liability for all claims fordamages arising from the actual or allegedviolation of any federal, state, municipal (orpolitical subdi vision thereof) statute, law,ordinance, code, rule or regulation relating to t heenvironment, including but not li mited to: TheClean Air Act, 42 U.S.C. S7401et seq.; The CleanWater Act, 33 U.S.C. S1251 et seq.; TheComprehensive Environmental Response,Compensation and Liability Act, 42 U.S.C. S9601et seq.; The Toxic Substances Control Act , 15U.S.C. S2601 et seq.; The ResourceConservation and Recovery Act, 42 U.S.C. S6901et seq.; The Safe Drinki ng Water Act, 21 U.S.C.S349 et seq.; The National Environment PolicyAct, 42 U.S.C. S4321 et seq.; Occupational Safetyand Health Act, 29 U.S.C. S651 et seq.; togetherwith any amendments thereto and regulationspromulgated thereunder.Seller further disclaims any liability, direct orindirect, resulting from the Buyer/Users failure tofulfill the responsibilities enumerated in theproceeding paragraph entitled Statement ofBuyer/Users Responsibility including withoutlimitation:a. Buyer/Users failure to comply with statutes,

laws, codes, rules and regulations relating tothe Product and the environment; and

b. Buyer/Users failure to provide and install alldevices required for the protection o f thesafety and health of people, property, wildlifeand the environment and all persons, includingemployees of the User coming in contact with

the Product and its di scharges; andc. Buyer/Users failure to adhere to the

Installation, Operating and MaintenanceInstructions and the product literature,including all warning co ntained therein;

d. Buyer/Users failure to t est and monitor thefunctioning of the Product; and

e. Buyer/Users failure to determine and controlthe safety and cleanliness of dischargedeffluents, both gaseous and liquid, from theProduct.

14. EXCULPATORY AND INDEMNIFICATIONAGREEMENT: Buyer/User hereby agrees that theSeller will not be liable to the Buyer/User for thematters reffered in paragraph 13 entitled Disclaimerof Tort, Contract, Statutory and All Other Liability.This exculpatory agreement applies even if thedefect and/or loss, damage or injury to persons,property, wildlife and the environment resulted solelyor in part from the Sellers actualor allegednegligence, breach of warranty, violation an statute,law, ordinance, rule or regulatio, or actions resultingin strict liability.The Buyer/User hereby agrees to defend, holdharmless and indemnify the Seller and Sellersagents from and against all claims, suits, actions,and liabilities for injury or damage to people,property, wildlife, or the environment, including,without limitation, claims of negligence, strictproducts liability, breach of warranty (except thelimited warranties provided in paragraph 9 entitledLimited Warranty), breach of contract or violation ofstatute, law, ordinance, code, rule or regulation.The Buyer/User hereby agrees to defend, holdharmless and indemnify the Seller and Sellersagents from and against all claims, suits, and actionsincluding claims for contribution or imdemnificationfor anothers liability or alleged liability to any thirdperson or entity for injury or damage to people,

property, wildlife or the environment.Without limiting the generality of the foregoing, theBuyer/User hereby agrees to defend, hold harmlessand idemnify the Seller and Sellers agents from andagainst all claims, suits, actions, and liabilities forcompensatory, consequential, incidental or otherdamages and for damages for personal injury andproperty damage, loss of use, revenue or profit,injury to good will, inability to fulfill contracts to thirdparties, other economics loss, reponse costs andother environmental clean-up cost or other damagesarising out of the actual, alleged or threateneddischarge, dispersal, release or escape of pollutants,contaminants, hazardous waste, or liquid or gaseousmaterials discharged from or through the Product

and any loss, cost or expense arising out of anygovernmental or other direction or request to test for,monitor, clean-up, remove, contain, treat, detoxify orneutralize the foregoing.The Buyer/User hereby agrees to defend, holdharmless and indemnify the Seller and Sellersagents from and against all claims, suits, actions,and liabilities for damages arising from the actual oralleged violation of any federal, state, municipal (orpolitical subdivision thereof) statute, law, ordinance,code, rule or regulation relating t o the environment,including but not limited to: The Clean Air Act, 42U.S.C. S7401 et seq.; The Clean Water Act, 33U.S.C. S1251 et seq.; The ComprehensiveEnvironmental Response, Compensation andLiability Act, 42 U.S.C. S9601 et seq.; The ToxicSubstances Control Act, 15 U.S.C. S2601 et seq.;The Resource Conservation and Recovery Act, 42U.S.C. S6901 et seq.; The Safe Drinking Water Act,21 U.S.C. S349 et seq.; The National EnvironmentPolicy Act, 42 U.S.C. S4321 et seq.; OccupationalSafety and Health Act, 29 U.S.C. S651 et seq.;together with any amendments thereto andregulations promulgated thereunder.The Buyer/User hereby agrees to defend, holdharmless and indemnify the Seller and Sellersagents from and against all claims, suits, actions,and liabilities, direct or indirect, resulting from theBuyer/Users failure to fulfill the responsibilitiesenumerated above in number 12 entitled Statementof Buyer/Users Responsibilities as if the Buyer werethe User as referred to therein, including withoutlimination:a. Buyer/Users failure to comply with statutes, laws,

codes, rules and regulations relating to theProduct and the environment; and

b. Buyer/Users failure to provide and install alldevices required for the protection of the safetyand health of people, property, wildlife and theenvironment and all persons, includingemployeesof the User coming in contact with the

Product and its discharges; andc. Buyer/Users failure to adhere to the Installation,

Operating and Maintenance Instructions and theproduct literature, including all warning containedtherein;

d. Buyer/Users failure to test and monitor thefunctioning of the Product; and

e. Buyer/Users failure to determine and control thesafety and cleanliness of discharged effluents,both gaseous and liquid, from the Product.

The Buyer/User hereby agrees to defend, holdharmless and indemnify the Seller and Sellersagents from and against all claims, suits, actions,and liabilities as enumerated above without limitationeven if said claims, suits, actions, and liabilities arebased upon actual or alleged negligence, breach ofwarranty (other than the limited warranty provided inparagraph 9 entitled: Limited Warranty), violation ofany law, statute, ordinance, rule or regulation, or anyother basis of liability on the part of Seller or Sellersagents.

15. Assignment: No right or interest in this contract shallbe assigned by Buyer/User without prior writtenagreement by the Seller. No delegation of anyobligation by the Buyer/User shall be made withoutprior written agreement by the Seller.

16. Modifications; waiver: No Waiver, alteration ormodification of any of the provisions hereof shall bebinding on the Seller unless made in writing andagreed to by a duly authoried official of the Seller.No waiver by the Seller of any one or more defaultsby the Buyer/User in the performance of anyprovision of this contract shall perate or be construedas a waiver of any future default or defaults whetherof a like or of a different character.

17. Changes & Improvements: Seller reserves theright to make changes, and improvements in itsProducts at any time without notice. Where suchchange and improvements have been made, Seller

shall not be obligated to incorporate such changesand improvements in Products previously sold to anycustomer, nor shall Seller be obligated to replacepreviously sold products with products incorporatingsuch changes and improvements.

18. Return of Goods: Where Seller has provided priorwritten authorization, Seller will accept the return forcredit or exchange of products which have beenmade to the specifications set forth in its catalogsand other literature, provided the product has notbeen altered or damaged. Products returned forcredit will be subject to a 20% restocking charge.Return products must be shipped prepaid to Seller atthe location noted in written authorization.

19. Technical Services: Upon request of Buyer/User,

Seller will endeavor to furnish such technical adviceas it has available in reference to the use of itsproducts. Any technical advise furnished by Sellerwith reference to the use of its products is given andaccepted at Buyer/Users risk and the Sellerassumes no obligation or liability for the advice givenor results obtained.

20. APPLICABLE LAW: The validity, interpretation andperformance of all terms, conditions, warranties,disclaimers, indemnification and exculpatoryprovisions, and all other provisions described herein,and any purchase or sale made hereunder shall begoverned by the law of New Jersey in force at thedate this contract is made. Where not modified bythe terms herein, the provision of Article 2 of theUniform Commercial Code as enacted by the Stateof New Jersey shall apply to this transaction.

21. SEVERABILITY: If any provision or clause of thiscontract or application thereof to any person orcircumstances is held invalid or unconscionable suchinvalidity or unconscionability shall not affect otherprovisions or applications of the contract which canbe given effect without the invalid or unconscionableprovision or application, and to this end theprovisions of the contract are declared to beseverable.

22. WAIVER: If the Seller, at its option, agrees to awaiver of any of the terms and conditions recitedherein, such waiver shall not for any purpose beconstrued as a waiver of any succeeding breach ofthe same or any other terms or conditions of saidcontract; nor shall such a waiver be viewed as acourse of performance.

23. BUYER/USERS ACKNOWLEDGMENT:User/Buyer acknowledges that he has read bothsides of this contract and accepts its terms.

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