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Centrifugal Powered

Roof & Wall Exhausters 

IM-5500

August 2023

Installation, Operation & Maintenance Manual

This manual has been prepared to guide the users of centrifugal powered roof and wall exhausters in the proper installation, operation 

and maintenance procedures to ensure maximum equipment life with trouble-free operation. For safe installation, startup and 

operational life of this equipment, it is important that all involved with the equipment be well versed in proper fan safety practices 

and read this manual. It is the user’s responsibility to make sure that all requirements of good safety practices and any applicable 

safety codes are strictly adhered to. Because of the wide variety of equipment covered in this manual, the instructions given here are 

general in nature. Additional product and engineering information is available a

www.tcf.com

.

REVIEW AMCA BULLETIN 410 PRIOR TO INSTALLATION

Table of Contents

Exploded View..............................................................................2
Fan Overview
 

Impeller Rotation and Airflow ..........................................3

 

Fan Nameplate ..................................................................3

 

Dimensional Data..............................................................3

Receiving, Inspection & Unpacking .............................................4
Safety & Hazard Warnings ...........................................................4
Handling .......................................................................................5
Unit Storage .................................................................................6
General Installation ......................................................................7
Check, Test & Start Procedure .....................................................8
Motor Wiring & Installation .........................................................9
Electrical Information ...................................................................9

EC Motor Information ................................................................10
Fan Bearing Maintenance ..........................................................10
Safety & Bearing Lubrication Instructions .................................10
Speed Control Installation ..........................................................11
V-Belts ........................................................................................12
Maintenance ..............................................................................13
Accessory Installation Instructions ...................................... 14-19
Troubleshooting Guidelines .......................................................20
Installation / Start-Up Checklist .................................................21
Fan Maintenance Log ........................................................... 22-23

Refer to the Safety section(s) in this manual prior to installing or servicing the fan. The most current version of this installation and maintenance 

manual can be found on our website a

www.tcf.com/resources/im-manuals

.

SAFETY NOTICE

Twin City Fan

Summary of Contents for IM-5500

Page 1: ...in nature Additional product and engineering information is available at www tcf com REVIEW AMCA BULLETIN 410 PRIOR TO INSTALLATION Table of Contents Exploded View 2 Fan Overview Impeller Rotation an...

Page 2: ...ing Bird Screen Impeller Shroud Curb Cap Vent Tube Drain Support Brackets Horizontal Support Post Vertical Support Post Upblast Exhaust Fan Models VCU VCUB Downblast Exhaust Fan Model VC Motor Cover M...

Page 3: ...offer a broad range of end use applications and should be carefully integrated to provide best use Upblast direct drive fans are available with nominal impeller sizes from 8 5 to 19 7 and belt driven...

Page 4: ...processes that are hot the fan housing could be hot Sharp edges wear protective gloves when handling installing or servicing a fan Fans can operate at high decibel sound levels Wear proper ear protect...

Page 5: ...VCU fans All Sizes Fans may be lifted using hooks around the four 4 horizontal support posts with a minimum of four lifting straps with spreader bars to ensure that no contact is made with the motor...

Page 6: ...ith the bearing manufacturer s instructions The drives and belts should be removed if the fan is to be stored for a prolonged period The drives should be labeled for service and stored in a dry place...

Page 7: ...r details 3 Perform fan pre check See Check Test Start Procedure section for a full checklist 4 Perform installation of any externally mounted accessories that were shipped loose with the fan 5 Remove...

Page 8: ...e made by sliding the idler pulley along the groove to either tighten or loosen the belt See image to the right c Verify the RPM of the impeller Adjustment can be made via the variable speed sheave at...

Page 9: ...res are required it may be necessary to increase wire size to prevent excessive voltage drop Wires should be sized for a maximum of 3 voltage drop 4 Disconnect switches are not fused The power leads m...

Page 10: ...g conditions The standard pillow block bearings on belt driven ventilators are factory lubricated and are provided with external grease fittings Annual lubrication is recommended or more frequently if...

Page 11: ...line voltage 115V only Never connect across line See Connection Diagrams Minimum Speed Setpoint All controls are factory set to 65V 3V output as standard with an input voltage of 120V If different mi...

Page 12: ...essary to adjust belt tension do not over tension as bearing damage will occur Recommended belt tension should permit 1 64 deflection per inch of span of the belt at the center of the belt span To fin...

Page 13: ...ths is suggested 3 All motors supplied with Twin City Fan Blower ventilators carry a one year limited warranty from date of shipment For repairs within the warranty period the motor must be taken to t...

Page 14: ...les on the curb hinge to the holes on the curb cap This should be on the opposite side of the drain A B Step 2 Insert provided screws to affix the hinge to the curb cap Step 3 Place and install fan on...

Page 15: ...ex 4 Security Hasp Hinged Step 1 Drill 4 0 19 holes on center curb cap from either corner Step 2 Attach the hasp to the curb cap by using the included 10 hardware Step 3 Drill 4 0 19 holes on center o...

Page 16: ...of curb base Step 2 Attach chain to outside of curb base with bolt head on inside of curb base Step 3 Use one flat washer under bolt head and one on top of chain Step 4 Use remaining fasteners to atta...

Page 17: ...ping screws that are fastened to the support post Step 2 Drill holes and install firestat Holes must be near a support post Note The hole drilled in the motor housing must be close to in line with the...

Page 18: ...ce the insect screen between the fan inlet and the roof or roof curb Fasten with screws or nails if desired Twin City Fan Performance Baffle Installation Step 1 Place the performance baffle between th...

Page 19: ...g sheet metal screws Roof curbs come with damper trays Grease Box Installation Step 1 Fasten the grease box to the curb cap under the drain using supplied hardware Parts Included Grease Box Cover Grea...

Page 20: ...erate noise 4 Poor fan inlet conditions 5 Acoustics or sound measurement procedure incorrect Vibration Problems 1 Poor foundation or mounting structure resonances 2 Foreign material attached to rotati...

Page 21: ...n Check Inspect fan for damage Are the bolts tight Fan Impeller Impeller overlap checked Fasteners tight Impeller rotates freely Bearings Bearings aligned Bearings greased Note Rotate while greasing S...

Page 22: ...M 5500 Installation Operation Maintenance Manual 22 Date Completed Maintenance Performed By Comments Model Number __________________________ Serial Number __________________________ Fan Maintenance Lo...

Page 23: ...nstallation Operation Maintenance Manual IM 5500 23 Date Completed Maintenance Performed By Comments Model Number __________________________ Serial Number __________________________ Fan Maintenance Lo...

Page 24: ...TWIN CITY FAN BLOWER WWW TCF COM 5959 Trenton Lane N Minneapolis MN 55442 Phone 763 551 7600 Fax 763 551 7601 2023 Twin City Fan Companies Ltd Twin City Fan...

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