CWB Belt Drive Centrifugal Sidewall Exhaust Fan

Windband

Birdscreen

Motor Compartment

Mounting Plate

Wheel

Cover

Breather Tube

 

Troubleshooting

WARNING: Before taking any corrective action, make certain unit is not capable of operation during repairs.

PROBLEM

CAUSE

CORRECTIVE ACTION

 

 

 

 

Bad Bearings

Replace.

 

 

 

 

Wheel unbalance

Clean and remove all dirt buildup off wheel. Check wheel

 

balance, rebalance in place if necessary.

 

 

 

 

 

Excessive Noise

Belts too tight or too loose

Adjust tension, see figure 12a-b.

 

 

Wheel improperly aligned and

 

or Vibration

Center wheel on inlet, see figure 7.

 

rubbing

 

 

 

 

 

 

Loose drive or motor pulleys

Align and tighten. See “Pre-Starting Checks”, see page 4-6.

 

 

 

 

Foreign objects in wheel or

Remove objects, check for damage or unbalance.

 

housing

 

 

 

 

 

 

System resistance too high

Check system: Proper operation of backdraft or control

 

dampers, obstruction in ductwork, clean dirty filters.

 

 

 

 

 

Reduced airflow

Unit running backwards

Correct as shown in figure 8.

 

 

 

Excessive dirt buildup on wheels

Clean wheel.

 

 

 

 

Improper wheel alignment

Center wheel on inlets, see Pre-Starting checks and figure 7.

 

 

 

Warranty

Greenheck warrants this equipment to be free from defects in material and workmanship for a period of one year from the purchase date. Any units or parts which prove defective during the warranty period will be replaced at our option when returned to our factory, transportation prepaid. Motors are warranted by the motor manufacturer for a period of one year. Should motors furnished by Greenheck prove defective during this period, they should be returned to the nearest authorized motor service station. Greenheck will not be responsible for any removal or installation costs.

As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications without notice.

 

Greenheck Catalog Series C provides additional information describing the

 

equipment, fan performance, available accessories, and specification data.

 

AMCA Publication 410-96, Safety Practices for Users and Installers of Industrial

®

and Commercial Fans, provides additional safety information. This publication

 

can be obtained from AMCA International, Inc. at: www.amca.org.

Phone: (715) 359-6171 • Fax: (715) 355-2399 • E-mail: gfcinfo@greenheck.com • Website: www.greenheck.com

8

457691 • Models CW/CWB, Rev. 5, September 2008

Copyright 2008 © Greenheck Fan Corp

Page 7 Page 8
Page 8
Image 8
Greenheck Fan CW/CWB manual CWB Belt Drive Centrifugal Sidewall Exhaust Fan, Troubleshooting, Warranty, Or Vibration
Page 7 Page 8

CW/CWB specifications

Greenheck Fan CW/CWB series units are engineered to deliver exceptional performance and efficiency in a wide range of commercial and industrial applications. These fans are particularly noted for their versatility, reliability, and advanced technology, making them an ideal choice for various ventilation and exhaust needs.

One of the standout features of the CW/CWB series is its robust construction. Built with high-quality materials, these fans ensure durability and longevity even in the most demanding environments. Their design incorporates a heavy-gauge steel housing that effectively reduces noise levels, allowing for quieter operation without compromising performance.

The CW/CWB fans are equipped with high-efficiency motors that significantly reduce energy consumption compared to conventional fan systems. These motors are designed to operate at optimal efficiency, which not only lowers operating costs but also minimizes environmental impact. The fans are available in various configurations, including belt-drive and direct-drive options, providing flexibility to meet specific application requirements.

In terms of airflow performance, the CW/CWB series boasts an impressive range of airflow capacities. With a wide selection of sizes and wheel diameters, these fans can be tailored to suit the unique demands of different spaces. The efficient fan design promotes balanced airflow, ensuring uniform distribution without dead spots or turbulence.

Another notable characteristic of the CW/CWB fans is their ease of maintenance. The thoughtfully designed housing allows for simple access to internal components, making routine inspections and servicing straightforward. This design feature is particularly beneficial for facilities looking to minimize downtime and maintain optimal operational efficiency.

The integrated technologies of the CW/CWB series enhance their overall performance. Advanced automation options, including variable frequency drives (VFDs), enable precise control of fan speed and airflow. This adaptability allows operators to respond to changing conditions and demands quickly.

In summary, Greenheck Fan's CW/CWB series units epitomize high-performance ventilation technology. With their durable construction, energy-efficient motors, exceptional airflow capabilities, and user-friendly maintenance features, these fans are an excellent choice for a diverse range of applications, ensuring reliable and efficient operation for years to come.
Top Page Image Contents