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Installation, Operation & Maintenance Manual

IM-5500

7      

Sheet metal parts, screws, clips and similar items inherently have sharp edges 

and it is necessary that the installer and service personnel exercise caution.

CAUTION

General Installation

The installation of this equipment shall be in accordance with the regulations of authorities having jurisdiction and all applicable codes.
This equipment is to be installed by an experienced installation company and fully trained personnel.
The mechanical installation of the exhaust ventilator consists of making final connections between the unit and building services, duct 

connections.

1.  Install an appropriate roof curb for the fan size and use. Ensure proper caulking 

and flashing are installed for a water-tight seal.

a. Sidewall Mounted Units: A wall mounting bracket is shipped for all fans 

meant for sidewall installation. Bolt the wall mount bracket to the wall by 

pre-drilling pilot holes and then using eight lag screws to secure the bracket.

2.  Any backdraft damper, insect screen or performance baffle should be installed 

now. Refer to the 

Performance Baffle Installation

 section for 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 the fan motor housing cover by removing the four screws. See Motor 

Housing Cover Removal images to the right for reference on screw location.

6. 

a.  Roof Mounted Units: Place the unit onto the roof curb. Secure the fan to the 

curb with eight lag screws or other suitable fasteners. Verify that the fan is 

oriented to facilitate installation of wiring.

b.  Sidewall Mounted Units: Align and then affix the fan onto the wall mounting 

bracket using the hardware provided. NOTE: The drain should always be 

facing directly down and the vent tube to the lower right corner. See image 

below for drain and vent tube location.

c.  NOTE: If curb hinge, security latch or retaining chain accessories are selected, 

please reference the Curb Hinge, Security Hasp and/or Retaining Chain 

installation instructions towards the back of this manual.

7.  Follow the 

Motor Wiring and Installation

 instructions section. Verify installation 

of any accessories that were shipped loose with the unit.

8.  Affix the motor housing cover back onto the unit.

Upblast 

Motor housing cover removal

Downblast 

Twin City Fan

Wall mounted unit with correct drain and vent 

tube location

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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