twin city HIB - User Manual

Contents
Introduction .........................................................................1
Shipping and Receiving .....................................................1
Handling .............................................................................. 1
Short Term Storage ...........................................................2
Long Term Storage............................................................2
Foundations and Supporting Structures ..........................2
Fan Installation ................................................................... 2
Factory Assembled Units .............................................2
Disassembled Units .......................................................3
Fan Operation – Safety .....................................................4
Operation Checklist ............................................................5
Maintenance of Fans .........................................................5
General Motor Maintenance .........................................5
Drive Maintenance .........................................................5
Bearing Maintenance .....................................................5
Lubrication ......................................................................6
Wheel and Shaft Maintenance .....................................7
Structural Maintenance .................................................7
Troubleshooting Guidelines................................................7
Troubleshooting Performance Problems
Air Capacity Problems .................................................. 7
Noise Problems ............................................................. 7
Vibration Problems ........................................................ 7
Motor Problems ............................................................. 7
Drive Problems .............................................................. 7
Bearing Problems ..........................................................8
Limitation of Warranties and Claims ............................... 8
Introduction
The purpose of this manual is to provide instructions
that complement good general practices when install-
ing or operating fans manufactured by Twin City Fan &
Blower. It is the responsibility of the purchaser to pro-
vide qualified personnel experienced in the installation,
operation, and maintenance of air moving equipment.
Instructions given in the body of this manual are
general in nature and apply to a variety of models
manufactured by Twin City Fan & Blower. Most units
can be installed and maintained with the instructions
given. Additional product and engineering information is
available at www.tcf.com.
Special applications may require additional information.
These instructions are supplied in the form of attached
appendices. Use the instructions in the appendix if the direc-
tions in this manual differ from instructions in the appendix.
As always, follow good safety practices when install-
ing, maintaining and operating your air moving equip-
ment. A variety of safety devices are available. It is
the user’s responsibility to determine adequate safety
measures and to obtain the required safety equipment.
Shipping and Receiving
All Twin City Fan & Blower products are carefully con-
structed and inspected before shipment to insure the
highest standards of quality and performance.
Compare all components with the bill of lading or
packing list to verify that the proper unit was received.
Check each unit for any damage that may have
occurred in transit. Any damage should be reported
immediately to the carrier and the necessary damage
report filed.
Handling
Handling of all air moving equipment should be con-
ducted by trained personnel and be consistent with safe
handling practices. Verify the lift capacity and operat-
ing condition of handling equipment. Maintain handling
equipment to avoid serious personal injury.
Units shipped completely assembled may be lifted with
slings and spreader bars. Use well-padded chains, cables
or nylon straps. On most units, lifting lugs are provided
for attaching chains (see Figure 1). Lift the fan in a fash-
ion that protects the fan and fan coating from damage.
Never lift a fan by the inlet or discharge flange, shafting
or drives, wheel or impeller, motor or motor base, or in
any other manner that may bend or distort parts.
Partial or disassembled units require special handling.
All parts should be handled in a fashion which pro-
tects the coatings and parts from damage. Components
should be handled such that forces are not concentrated
and bending or distortion cannot occur.
Figure 1. Lifting Lug Locations
©2014 Twin City Fan Companies, Ltd.
ES-52
August 2014
Centrifugal Fans
INSTALLATION, OPERATION & MAINTENANCE MANUAL
Lifting Lugs
Lifting Lugs
Lifting Lugs
Lifting Lugs

Summary

Introduction

Shipping and Receiving

Handling

Handling of all air moving equipment should be conducted by trained personnel and be consistent with safe handling practices.

Handling

Short Term Storage

If fan installation is to be delayed, store the unit in a protected area. Protect the fan and motor bearings from moisture and vibration.

Long Term Storage

Prior to Storage - Fan bearings (and motor bearings per the motor manufacturer's specifications) are to be greased at the time of going into extended storage.

Storage Procedure

Fans should be stored indoors whenever possible where control over temperature, shock and dust is reasonably maintained.

Start-Up

When the unit is removed from storage, all fan bearing grease should be purged and replenished with fresh grease.

Foundations and Supporting Structures

Fan Installation - Factory Assembled Units

Move the fan to the final mounting position. Remove skid, crates, and packing materials carefully.

Fan Installation - Disassembled Units

Instructions for Mounting and Assembly of Unit

A unit is considered 'disassembled' if any component required for proper operation is shipped or supplied separately or in pieces.

Arrangement 1, 9 or 10: Drive Component Assembly

Insert shaft into wheel from back side of wheel. When shaft is flush with wheel hub, put key into keyway...

Arrangement 3 (Split-housed) units

Parts on DWDI units are assembled in the following order as viewed from opposite drive side...

Mount drives

Slip (do not pound) proper sheave onto corresponding shaft. CAUTION: PLACING FAN SHEAVE ON MOTOR CAN OVER-SPEED...

Fan Operation - Safety

Facility-related safety conditions

Facility-related safety conditions include fan accessibility and location. How easily can non-service personnel access the unit?

Operation Check List

Trial bump

Turn on power just long enough to start assembly rotating. Check rotation for agreement with rotation arrow.

Run unit up to speed

Check bearing temperatures are acceptable (<200°F) after one to two hours of operation.

After one week of operation

Check all nuts, bolts and setscrews and tighten if necessary.

Maintenance of Fans

General Motor Maintenance

The three basic rules of motor maintenance are keep the motor clean, dry and properly lubricated.

Drive Maintenance

V-belt drives need periodic inspection and occasional belt replacement. When inspecting drives, look for dirt buildup...

Bearing Maintenance

For instructions covering special lubrication intervals, bearing assembly or disassembly, or installation details, see attached documents.

Lubrication

Ball Bearing Pillow Blocks

Relubrication Schedule (Months)* for Ball Bearing Pillow Blocks. Suggested lubrication interval under ideal continuous operating conditions.

Spherical Roller Bearing - Split Pillow Blocks

Relubrication Schedule (Months)* for Spherical Roller Bearings - Split Pillow Blocks.

Spherical Roller Bearing - Solid Pillow Blocks

Relubrication Schedule (Months)* for Spherical Roller Bearings - Solid Pillow Blocks.

Static Oil Lubrication

Use only high quality mineral oil with a VG grade indicated on the customer submittal drawing.

Wheel and Shaft Maintenance

Structural Maintenance

Troubleshooting Guidelines

Troubleshooting Performance Problems

Air Capacity Problems

Resistance of system not at design rating. If resistance is lower than expected, both airflow and horsepower may be up.

Noise Problems

Air performance is incorrect and fan is not at design point of operation. Fan forced to operate in an unstable flow region.

Vibration Problems

Misalignment of drive components. Poor foundations or mounting structure (resonances). Foreign material attached to rotating components.

Motor Problems

Incorrect wiring. Speed of fan too high. Parts improperly installed - binding.

Drive Problems

Belts improperly tensioned. Drive alignment is poor.

Bearing Problems

Ball bearings

These are self-aligning bearings and should present no alignment problems with one exception: i.e., on Sealmaster bearings...

Spherical Roller Bearings with Set Screw Lock

The self-aligning characteristic of these bearings are inherent in the spherical roller design. The cooler...

Spherical Roller Bearings with Adapter Lock

Again, the self-aligning feature is inherent in the spherical design. Good alignment results in a cooler operating bearing.

Lubrication

The major cause of bearing failure is contamination of grease, insufficient grease, or incompatibility of grease.

Limitation of Warranties and Claims

twin city HIB Specifications

General

Brand	twin city
Model	HIB
Category	Fan
Language	English