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1401 North Plano Road, Richardson, Texas 75081Phone: 972-234-3202 Fax: 972-497-0468

Operation & Maintenance Manual

Centrex Inliner Direct & Belt Drive

Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the productdescribed. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personalinjury and/or property damage! Retain instructions for future reference.

Receiving and HandlingPennBarry fans are carefully inspectedbefore leaving the factory. When the unitis received, inspect the carton for anysigns of tampering. Inspect the unit forany damage that may have occurred dur-ing transit and check for loose, missing ordamaged parts. Mishandled units canvoid the warranty provisions. If units aredamaged in transit, it is the responsibilityof the receiver to make all claims againstthe carrier. PennBarry is not responsiblefor damages incurred during shipment.

Avoid severe jarring and/or dropping.Handle units with care to prevent damageto components or finishes. If the unit is scratched due to mishandling, the pro-tective coating may be damaged.Incorrect lifting may damage the fan andvoid the warranty.

StorageLong-term storage requires special atten-tion. Store units on a level, solid surface,preferably indoors. If outside storage isnecessary, protect the units against mois-ture and dirt by encasing the cartons inplastic or in some similar weatherproof material. Periodically inspect units androtate wheels to spread bearing lubricant.Failure to rotate wheels results in reducedbearing life and may void the manufactur-er’s warranty. If the unit will be stored foran extended time, remove belts. Beltswhich remain under tension in a station-ary position for extended periods are likely to have a reduced operating life.

UnpackingPlace the carton in an upright position andremove the staples or use a sharp (knifeedge) tool to carefully cut or scribe thesealing tape on both sides at the top ofthe carton. Open carton flaps. Removeany cardboard and wooden filler pieces,as well as loose components or acces-sories shipped with the unit.

Carefully remove the unit from the carton.Inspect the unit for any damage that mayhave occurred during transit and checkfor loose, missing or damaged parts.

InstallationFans must be directly supported by build-ing structure. Follow building’s blue printscarefully when installing.

INSTALLING THE DAMPERS:INLINE MOUNTINGWhen required, dampers must be positioned and fastened to the duct or fan housing.

ROOF MOUNTINGWhen required, install dampers prior tomounting the unit on the curb or frame.Secure dampers to the inside of the curbwithout undue twisting, which may distortthe damper frame. Damper frame mustbe reasonably level on all sides. Checkfor free operation. If dampers are motoroperated type, make certain that propervoltage (for electric type) or air pressure(for pneumatic type) is connected tomotor terminals.

POSITIONING AND RUNNING POWERLINES: INLINE MOUNTINGPower is normally brought from within thebuilding through proper conduit lines tothe unit. It is then fed to the (disconnectswitch, if furnished, and) motor. For beltdriven units, lines can be fastened to theexterior of the Inliner with appropriate fas-tening devices. All direct driven Inlinerunits are pre-wired. Ground and 12-gauge line wire are provided between themotor and a junction box mounted on theexterior of the fan housing.

ROOF MOUNTINGPower is normally brought from within thebuilding through proper conduit lines andplaced inside one corner of the curb.Feed power line through the clearancehole provided in the backdraft damperand in turn fed (through the disconnectswitch, if furnished) to the fan motor.

ANCHORING AND SECURING THE VENTILATOR: INLINE MOUNTINGInliners are designed for all angle mount-ing. Method of installation is dependentupon job conditions and may, under spe-cific circumstances, require support legs,angle supports or casing brackets.Vibration eliminators, where required,should be installed jointly with the units.Flexible duct connectors are commonaccessories, and if used, should overlapthe duct at least 2". Test wheel for free-dom of movement before installing unit. Ifwheel does not rotate freely then loosenventuri screws, move venture until wheelrotates freely and tighten screws.

(2) NUTS(BY OTHERS)

VIBRATIONHANGERCASING

THREADED ROD(BY OTHERS)

VIBRATION ELIMINATOR

THREADED ROD(BY OTHERS)

NUT &WASHER

(BY OTHERS)

VIBRATIONELIMINATORS

DUCT W/90º FLARE (BYOTHERS)

HANGER BRACKET

ACCESS DOOR

THREADED ROD (BY OTHERS)

HANGER BRACKET

(2) NUTS (BY OTHERS)

FRAME FACE

DUCT W/90º FLARE (BYOTHERS)

CENTREXINLINER

Figure 1: Duct Assembly

Printed in the USA Jan 2005PART #59624

TOP BUILDINGSTRUCTURE

Operation & Maintenance Manual Centrex Inliner Direct & Belt Drive

2 PENNBARRY1401 North Plano Road, Richardson, Texas 75081Phone: 972-234-3202 Fax: 972-497-0468

It is particularly important to rememberthat the venturi end is the inlet side of theInliner. Position the unit so that the airflowdirection desired is proper; the inlet ismarked “Inlet Side”.

When the Inliner has been placed into its proper position, connect it to the duct system. Duct on inlet and dischargesides should be the same height and width as the inside dimensions of the square housing frame. Flare out the ductwork 90° to easily screw to faces of unit. A length 2.5 times the housing square should be installed beforeelbows or transitions are used.

Appropriately sized fasteners should be used and drawn secure and tight.Correct fan wheel rotation should be in the direction of the arrow affixed to the unit. Normally the wheel should rotateclockwise when looking into the inlet side of the Inliner.

ROOF MOUNTINGWhenever possible, anchor the fan byfastening through the angle hanger brack-ets. The type, size and number of fasten-ers depends upon the unit size and curbconstruction. If fastening is prescribed bycode or specification through any part ofthe unit, then neoprene or lead washersshould be used under the head of eachfastener. Large units installed in areassubject to high winds or unusual field con-ditions, or any units with hooded intakesor upblast tubes may require additionalfastening with guy wires. If the contractorremoves the ventilator parts to facilitateinstallation and electrical connections, allparts should be reassembled exactly asthey were found prior to removal. All fas-teners are to be drawn tight and secure.

Some local codes prohibit the connection

of in-line, aluminum fans in kitchen hood exhaust systems. According to present NFPA96 interpretation, ANY fanused in such duct work must be made ofsteel, with liquid-tight welds at all seamsand connections. If local codes are inaccordance with NFPA96 do not use ANYFAN that is not completely welded closedfor such duty. Refer to PennBarry’s Fumexand Dynamo products for roof and wallmounted exhausters approved for use onkitchen hood exhaust systems.

Start-Up and OperationCarefully inspect the unit before start-up.All motor fasteners should be securelytightened. Centrifugal wheel should berotated by hand to insure free movement.See page 6 for wheel alignment proce-dure. (NOTE: Before placing hand oncentrifugal wheel or belts, lock out powersource.) Check all set-screws and keys.Tighten when necessary.

Check the condition of belts and the amount of tension prior to start-up. DO NOT over tighten, as bearing damagewill occur. Recommended belt tensionshould permit deflection of 1/64" of the belt on each side of the belt measuredhalfway between the pulley centerline.Exercise extreme care when adjustingbelts as not to misalign the pulleys. Any misalignment will cause a sharpreduction in belt life an produce squeaky,annoying noises. On units equipped withtwo or three groove pulleys, adjustmentsmust be made so that there is equal ten-sion on all belts.

Whenever belts areremoved or installed,

never force belts over pulleys withoutloosening motor first to relieve belt tension.

Make sure inlets and approaches to theunit are free from obstruction.

When power lines are brought up to theunit, provide a generous amount of slackto allow for motor deflections and to per-mit movement of motor for belt tensionadjustments. Ground motor adequatelyand securely. Protect power lines fromsharp objects. Do not kink power line orpermit it to contact hot surfaces, chemi-cals, grease or oil. Use only UL recog-nized electrical parts, rated for propervoltage, load and environment.

Before putting fan into operation, com-plete the following checklist:

a. Turn off power source.

b. Make sure installation is in accordance with manufacturer’s instructions.

c. Check and tighten all fasteners.

d. Spin centrifugal wheel to see if rotation is free.

e. Check all set-screws and keys - tighten if necessary.

f. Torqued set screws have a coloredTorque Seal mark indicating the cor-rect torque has been applied.

g. Check belt or direct drive couplingfor alignment (use recommendedbelt tension gauges).

h. Check belt for proper sheave selection.

i. Make sure there is no foreign orloose material in ductwork leading toand from fan or in the fan itself.

j. Properly secure all safety guards.

k. Secure all access doors to fan and ductwork.

l. Check line voltage with motor nameplate.

m. Check wiring.

On single phasemotors, the terminal

block must be set up in accordance withthe nameplate instructions and/or wiring diagram. This set up must match the linevoltage. If the motor is multi-speed ormulti-voltage, the winding leads must begrouped and connected as shown on themotor wiring diagram. The line voltagemust correspond with proper grouping ofmotor leads. The wiring diagram must befollowed explicitly or serious motor orstarter damage will occur.

The ventilator has been checked at the factory prior to shipment formechanical noises. If mechanical noisesshould develop:

a. Check rotating components for adequate clearance.

b. Check proper belt tension and pulley alignment.

c. Check installation and anchoring.

d. Check fan bearings.

Figure 2: Pulley Alignment

Operation & Maintenance ManualCentrex Inliner Direct & Belt Drive

PENNBARRY 31401 North Plano Road, Richardson, Texas 75081Phone: 972-234-3202 Fax: 972-497-0468

Switch on electrical supply and allow fanto reach full speed. Check carefully for:

1. Correct rotation of the centrifugal wheel.

Incorrect rotation overloads motor

severely and results in serious motor damage. To change rotation of three phaseunits, interchange any 2 of the 3 line leads.On single phase units, change the terminalblock set-up following the wiring diagramon the motor.

2. Check motor and bearing tempera-tures for excessive heat.

Use care when touch-ing the exterior of an

operating motor. Modern motors normallyrun hot. They are designed to operate athigher temperatures. This is a normal con-dition but they may be hot enough to bepainful or injurious to the touch.

If any problem is indicated, TURN OFFPOWER TO UNIT IMMEDIATELY. Lockout the electrical supply, check carefullyfor the cause of the trouble and correct asneeded. Even if the fan appears to beoperating satisfactorily, shut down after abrief period and check all fasteners, set-screws and keys for tightness.

During the first eight (8) hours of opera-tion, check the fan periodically for exces-sive vibration or noise. At this time, alsocheck motor input current and motor bear-ing temperatures to insure that they donot exceed manufacturer’s recommenda-tions. After eight hours of satisfactoryoperation, shut down the fan and lock outthe electrical power to check the followingitems and adjust if necessary:

a. All set-screws, keys and fasteners.

b. Drive coupling alignment.

c. Belt alignment.

d. Belt tension.

MaintenanceDo not attempt maintenance on a fan untilthe electrical supply has been completelydisconnected. Lubrication is a primarymaintenance responsibility. Check allbearings periodically. Inspect belts fortightness. If the fan is installed in a corro-sive or dirty atmosphere, periodicallyclean the centrifugal wheel, inlet, motorhousing and other moving parts.

FAN SHAFT LUBRICATIONFan shaft bearing pillow blocks are fur-nished in either the pre-lubricated sealed-for-life type or the greasable type depend-ing on what was ordered. The pre-lubri-cated type requires no servicing for 7 to10 years of normal use and the greasabletype are factory greased eliminating theneed for greasing initially. Follow the lubri-cating schedule recommended by the fac-tory. This practice should not supersedeany safety considerations.

Use low pressuregrease guns only. High

pressure guns tend to blow out or unseatbearing seals, leaving the bearing open tocollect grime, dust and foreign particles.

LUBRICATION SCHEDULEAlways follow the bearing manufacturer’srecommended lubrication schedule. Ifnone is available us the following general schedule.

a. Under average conditions whereambient temperatures do not exceed120°F, lubrication is required 1 to 2times a year.

b. Under dirt laden atmosphere wherethere is a temperature range of120°F to 150°F, lubrication isrequired from 3 to 6 times a year.

c. Under extreme temperature condi-tions and extremely dirty atmos-pheres, lubrication should be sched-uled at least once or twice a month.

d. Belt driven units maximum tempera-ture should not exceed 160°F. Directdriven models have temperaturerange stamped on motor.

Table 1: Recommended Lubricants

MOTOR LUBRICATIONIn general, standard motors are furnishedwith prelubricated, sealed-for-life ballbearings which require no lubrication for 7to 10 years of normal service. Wheremotors have been ordered with greasablebearings, these bearings are factory lubri-cated and require no attention for oneyear under normal conditions. If greaserelief fittings are provided, remove themwhen performing maintenance to allowgrease to flow out. Whenever possible,apply grease while the motor is running.This practice should not supersede anysafety considerations. DO NOT OVERGREASE, as most lubricants deterioratemotor windings, thereby reducing motorlife and presenting a fire hazard.

Hidden Danger In addition to the normal dangers of rotat-ing machinery, fans present an additionalhazard in their ability to suck in not onlyair, but loose material as well. Solidobjects can pass through the fan and bedischarged by the impeller as potentiallydangerous projectiles. Therefore, screenintake to ductwork, whenever possible, toprevent the accidental entrance of solidobjects. Never open access doors to aduct system with the fan running.

When starting the fan for the first time,completely inspect the ductwork and inte-rior of the fan (with the power locked off),to make certain there is no foreign materi-al which can be sucked into or blownthrough the ductwork.

Where the fan is accessible to untrainedpersonnel or the general public, use max-imum safety guards, even at the cost ofsome performance loss.

Unprotected fans located less than

7' above the floor also require guarding as specified in the Occupational Safety and Health Act (OSHA).

Centrifugal fans may be connected direct-ly to ductwork which will prevent contactwith the internal moving parts, but whenthe inlet or outlet is exposed, install a suit-able guard. PennBarry recommends theuse of guards on all exposed non-ductedfans, ceiling and wall mounted.

Special Purpose SystemsExplosive, corrosive, high temperatures,etc. may require special construction,inspection and maintenance. It is necessary to observe the fan manufactur-er’s recommendations and limitationsconcerning the type of material to be handled by the fan and its application to special conditions.

Manufacturer Product Temp. Range

BP LG-#P-1

Below 32°F (0°C)

Gulf Gulfcrown EP-1

Imperial Oil Unirex EP-1

Shell Alvania R-1

BP Energrease,MPMK11

32°F to 150°F(0°C to 66°C)

Gulf Gulfcrown EP-2

Imperial Oil Unirex EP-2

Shell Alvania R-3

Sun Oil Sun Prestige 42

Texaco Regal AFB2



Parts ReplacementsIf replacing parts, do so with properlyselected components which duplicate theoriginal parts correctly. Incorrectly sizedshafts, belts, pulleys, centrifugal wheels,etc. can damage the fan.

DIRECT DRIVE1. Side Panel2. Venturi Panel3. Venturi4. Centrifugal Wheel5. Hanger Bracket6. Corner Post7. Corner Bracket8. Motor Mounting Plate9. Top Panel10. Motor Mounting Plate Support11. Motor Mounting Plate Cover12. Round Inlet Ring (Optional)13. Motor14. Support Channel (Optional)15. Inlet Guard (Optional)16. Plastic End Cap

BELT DRIVE1. Access Panel (3)2. Venturi Panel3. Spun Inlet4. Bearing Support Plate5. Shaft – Ground and Polished6. Cast Bearings7. Centrifugal Wheel8. Vibration Hangar Bracket9. Bearing Support Plate Cover10. Frame Angle11. Corner Extrusion and Cap12. Motor Mounting Plate13. Motor Mounting Plate Supports14. Round Inlet Ring (Optional)15. External Lube Lines (Optional)16. Disconnect Switch (Optional)17. Motor and Belt Cover (Optional)

Figure 3: Direct Drive

Figure 4: Belt Drive



Troubleshooting Checklist

Note: Care should be taken to follow all local electrical, safety and building codes. Provisions of the National Electric Code (NEC), as wells as the Occupational Safety and Health Act (OSHA)should be followed.

All motors are checked prior to shipment. If motor defects should develop, prompt service can be obtained from the nearest author-ized service station of the motor manufacturer while under warranty. Exchange, repair or replacement will be provided on a nocharge basis if the motor is defective within the warranty period. The PennBarry representative in your area will provide a name andaddress of an authorized service station if requested. WARNING: Motor guarantee is void unless overload protection is provided inmotor wiring circuit.

Symptom Possible Cause(s) Corrective Action

Excessive noise

1. Defective or loose motor bearings 1. Replace motor with same frame size, RPM, HP2. Ventilator base not securely anchored 2. Reset properly

3. Loose or unbalanced wheel/propeller 3. Tighten screws, remove build-up, balance wheel/propeller

4. Misaligned pulleys or shaft 4. correct alignment5. Loose or damaged wheel/propeller 4. Replace wheel/propeller6. Wheel running in wrong direction 6. Reverse direction

Fan inoperative

1. Blown fuse or open circuit breaker 1. Replace fuses or circuit breaker

2. Loose or disconnected wiring 2. Shut off power and check wiring for proper connections

3. Defective motor 3. Repair or replace motor4. Broken belts 4. Replace belts

Insufficient airflow

1. Open access doors or loose sections of ducts 1. Check for leakage2. Clogged filters 2. Clean filters 3. Operation in wrong direction 3. Correct rotation of wheel4. Insufficient make-up air direction 4. Add make-up fan or louver opening

Water leaking into ductwork or collection of greaseunder fan

1. Fan installed with slope in the wrong direction1. Slope should be fitted in the direction of the

drainage opening or grease collection box anddrain spout

2. Clogged drain spout 2. Clean drain spout

3. Cooling tube or motor dome top removed 3. Install new cooling tube with gasket and dome top

4. Grease container full 4. Empty grease box

Motor overheating

1. Belt slippage 1. Adjust tension or replace bad belts2. Overvoltage or under voltage 2. Contact power supply company3. Operation in wrong direction 3. Reverse direction of motor

4. Fan speed too high 4. Slow down fan by opening variable pitch pulley on motor shaft

5. Incorrect motor (service factor 1.0, low ambient temperature)

5. Replace motor with correct open, NEMA service factors (1.15 or higher) with 40 degrees ambient

6. Blocked cooling tube or leaky gasket 6. Remove blockage and seal cooling tube in place7. Insufficient airflow to kitchen hood fan operating

on low speed with kitchen in full operation7. Check airflow under hood and adjust

kitchen equipment output

8. Undersized motor 8. Check motor ratings with catalog speed and air capacity chart



The wheel position is preset at factoryand must rotate freely. However, move-ment may occur due to rough handlingprior to installation and realignment maybe necessary. If field correction isrequired follow these procedures:

1. If “Front to Back” adjustment isrequired, loosen both motor frame support angles (four nuts),relocate frame and retighten.

2. If “Side to Side” adjustment isrequired, loosen both bearings (four nuts), relocate and retighten.

3. If “Vertical” adjustment is required,loosen both set screws on the wheel hub (accessible from the bot-tom side of the unit), raise the wheel and retighten.

Front View Side View

Front To BackWheel Adjustment

Spun Inlet Venturi Alignment

Section Thru S/M Screw

Centrifugal Wheel Spun Inlet Venturi

Loosen All S/M Screws Around Spun Inlet

Venturi Flange

Spun Inlet Venturi Flange With Over-SizedHoles To Allow For Adjustment In Field

Venturi Panel

Centrifugal Wheel

Centrex Inliner FrameSpun Inlet

Venturi

Venturi Panel

Access Panel

AccessPanel

Set Screws

Motor

S/M Screw

CentrifugalWheelHub

Wheel Alignment Procedures

Figure 5



Centrex Inliner is manufactured to beeasily hung in any direction that best suitsthe conditions in the field.

1. Simply take a punch and hammer toknock out half-sheared holes on thefan frame to mount the hangerbrackets from the desired sides.

2. Nuts and bolts are provided to fastenhanger brackets to unit frame (seedrawing above). Depending on sizeof unit, access door may need to beremoved for inserting nuts and boltsthru frame and bracket.

Hanger Bracket Assembly Instructions

Figure 6

Limited WarrantyWhat Products Are CoveredPennBarry Fans and Ventilators (each, a "PennBarry Product")

One Year Limited Warranty For PennBarry ProductsPennBarry warrants to the original commercial purchaser that the PennBarry Products will be free from defects in material and workmanship for a period of one (1) year from the date of shipment.

Exclusive RemedyPennBarry will, at its option, repair or replace (without removal or installation) the affected components of any defective PennBarryProduct; repair or replace (without removal or installation) the entire defective PennBarry Product; or refund the invoice price of the PennBarry Product. In all cases, a reasonable time period must be allowed for warranty repairs to be completed.

What You Must DoIn order to make a claim under these warranties:

1. You must be the original commercial purchaser of the PennBarry Product.

2. You must promptly notify us, within the warranty period, of any defect and provide us with any substantiation that we may reasonably request.

3. The PennBarry Product must have been installed and maintained in accordance with good industry practice and any specific PennBarry recommendations.

ExclusionsThese warranties do not cover defects caused by:

1. Improper design or operation of the system into which the PennBarry Product is incorporated.

2. Improper installation.

3. Accident, abuse or misuse.

4. Unreasonable use (including any use for non-commercial purposes, failure to provide reasonable and necessary maintenance as specified by PennBarry, misapplication and operation in excess of stated performance characteristics).

5. Components not manufactured by PennBarry.

Limitations1. In all cases, PennBarry reserves the right to fully satisfy its obligations under the Limited Warranties by

refunding the invoice price of the defective PennBarry Product (or, if the PennBarry Product has been discontinued, of the most nearly comparable current product).

2. PennBarry reserves the right to furnish a substitute or replacement component or product in the event a PennBarry Product or any component of the product is discontinued or otherwise unavailable.

3. PennBarry's only obligation with respect to components not manufactured by PennBarry shall be to pass through the warranty made by the manufacturer of the defective component.

GeneralThe foregoing warranties are exclusive and in lieu of all other warranties except that of title, whether written, oral orimplied, in fact or in law (including any warranty of merchantability or fitness for a particular purpose).

PennBarry hereby disclaims any liability for special, punitive, indirect, incidental or consequential damages, includingwithout limitation lost profits or revenues, loss of use of equipment, cost of capital, cost of substitute products, facilitiesor services, downtime, shutdown or slowdown costs.

The remedies of the original commercial purchaser set forth herein are exclusive and the liability of PennBarry with respect to the PennBarry Products, whether in contract, tort, warranty, strict liability or other legal theory shall not exceed the invoice price charged by PennBarry to its customer for the affected PennBarry Product at the time the claim is made.

Inquiries regarding these warranties should be sent to: PennBarry, 1401 North Plano Road, Richardson, TX 75081.



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