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Troubleshooting

Problem and Potential Cause

Low Capacity or Pressure

• Incorrect direction of rotation. Make sure the fan

rotates in same direction as the arrows.

• Poor fan inlet or outlet conditions. There should be

a straight clear duct at the inlet or outlet.

• Improper wheel alignment

Excessive Vibration and Noise

• Damaged wheel.

• Loose fasteners.

• Speed too high.

• Incorrect direction of rotation. Make sure the fan

rotates in same direction as the arrows.

• Wheel set screws loose.

• Bearings need lubrication or replacement.

• Debris in impeller.

• Fan surge.

• See “Use of Variable Frequency Drives.”

Overheated Motor

• Motor improperly wired.

• Incorrect direction of rotation. Make sure the fan

rotates in same direction as the arrows.

• Cooling air diverted or blocked.

• Improper inlet clearance.

• Incorrect fan speed.

• Incorrect voltage.

Overheated Bearings

• Improper bearing lubrication

Upper Windband

Wheel

Lower Windband

Inlet

Motor Mounting Plate

Motor

Housing Assembly

Limited Warranty

Loren Cook Company warrants that your Loren Cook fan was manufactured free of defects in materials and workmanship, to the extent stated

herein. For a period of one (1) year after date of shipment, we will replace any parts found to be defective without charge, except for shipping costs

which will be paid by you. This warranty is granted only to the original purchaser placing the fan in service. This warranty is void if the fan or any part

thereofhasbeenalteredormodiedfromitsoriginaldesignorhasbeenabused,misused,damagedorisinwornconditionorifthefanhasbeen

used other than for the uses described in the company manual. This warranty does not cover defects resulting from normal wear and tear. To make a

warrantyclaim,notifyLorenCookCompany,GeneralOfces,2015EastDaleStreet,Springeld,Missouri65803-4637,explaininginwriting,indetail,

yourcomplaintandreferringtothespecicmodelandserialnumbersofyourfan.UponreceiptbyLorenCookCompanyofyourwrittencomplaint,

youwillbenotied,withinthirty(30)daysofourreceiptofyourcomplaint,inwriting,astothemannerinwhichyourclaimwillbehandled.Ifyouare

entitledtowarrantyrelief,awarrantyadjustmentwillbecompletedwithinsixty(60)businessdaysofthereceiptofyourwrittencomplaintbyLoren

CookCompany.Thiswarrantygivesonlytheoriginalpurchaserplacingthefaninservicespecicallytheright.Youmayhaveotherlegalrightswhich

vary from state to state.

2015E.DaleStreetSpringeld,MO65803

417.869.6474

lorencook.com

PPIOM-March2010

Power-Plume

Powered Induction Device

INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

This publication contains the installation, operation

and maintenance instructions for standard units of the

Power-Plume

Carefully read this publication prior to any

installation or maintenance procedure.

Loren Cook catalog, Power-Plume

, provides additional

information describing the equipment, fan performance,

availableaccessories,andspecicationdata.

For additional safety information, refer to AMCA

publication410-96,Safety Practices for Users and

Installers of Industrial and Commercial Fans.

All of the publications listed above can be obtained

fromLorenCookCompanybyphoning(417)869-6474,

extension166;byFAXat(417)832-9431;orbye-mailat

[email protected].

For information on special equipment, contact Loren

CookCompanyCustomerServiceDepartmentat(417)

869-6474.

Receiving

Inspection

Carefully inspect the fan and accessories for any

damage and shortage immediately upon receipt of the fan.

Turn the wheel by hand to ensure it turns freely and

does not bind.

Record on the Delivery Receipt any visible sign of

damage.

Rotating Parts & Electrical Shock Hazard:

Disconnect electric power before working on unit.

Follow proper lockout / tagout procedures to ensure

the unit cannot be energized while being installed or

serviced.

A disconnect switch should be placed near the fan

in order that the power can be swiftly cut off, in case

of an emergency and in order that maintenance per-

sonnel are provided complete control of the power

source.

Groundingisrequired.Alleld-installedwiringmust

becompletedbyqualiedpersonnel.Alleldin-

stalled wiring must comply with National Electric

Code(NFPA70)andallapplicablelocalcodes.

Failure to follow these instructions could result in

death or serious injury.

Handling

Lift the fan by lifting lugs. Never lift by the shaft, motor,

or housing.

Storage

If the fan is stored for any length of time prior to

installation,completelyllthebearingswithgreaseor

moisture-inhibitingoil.RefertoLubricantsonpage3.Also,

store the fan in its original crate and protect it from dust,

debris and the weather.

•Covertheinletandoutletopeningtopreventthe

accumulation of dirt and moisture in the housing.

•Periodicallyrotatethewheeltokeepacoatingof

grease on all internal bearing parts.

•Periodicallyinspecttheunittopreventdamaging

conditions.

Falling Parts Hazard:

The attachment of roof mounted fans to the roof

curb as well as the attachment of roof curbs to the

building structure must exceed the structural require-

ments based on the environmental loading derived

from the applicable building code for the site. The

localcodeofcialmayrequirevariationsfromthe

recognized code based on local data. The licensed

engineer of record will be responsible for prescribing

the correct attachment based on code requirements

andenvironmentalaffectsspecictotheinstallation.

Installation

ThePower-Plume

can be curb mounted or mounted

toaroofmountedlaboratoryexhaustfan.ThePower-

Plume

should not be mounted on sheet metal roof curbs,

but may be mounted to a Cook LEC, Laboratory Exhaust

Curb, attached per recommended attachment methods.

Theproperattachmentmethodshouldbedenedbythe

local authority.

Power-Plume

1 2 3 4

Sommario

Pagina 1 - Power-Plume

TroubleshootingProblem and Potential CauseLow Capacity or Pressure• Incorrect direction of rotation. Make sure the fan rotates in same direction as t

Pagina 2 - Operation

Wheel-to-Inlet ClearanceThecorrectwheel-to-inletclearanceiscriticaltoproperfanperformance.Thisclearanceshouldbeveriedbeforeinitialst

Pagina 3

Wheel-to-Inlet ClearanceThecorrectwheel-to-inletclearanceiscriticaltoproperfanperformance.Thisclearanceshouldbeveriedbeforeinitialst

Pagina 4

TroubleshootingProblem and Potential CauseLow Capacity or Pressure• Incorrect direction of rotation. Make sure the fan rotates in same direction as t

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