Instructions / Assembly

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Ventamatic, Ltd. | 100 Washington Ave, Mineral Wells, TX 76068 ▪ Phone: [phone] ▪ www.bvc.com
Operating Instructions
Whole House Fans cool your home by pulling in fresh, cooler air from outside through open windows and doors.
For best results in a multi-story home, windows should be opened on alternate levels for most efficient cooling.
NEVER operate fan without open windows or doors.
CAUTION: If your home has a fireplace, be sure that the flue damper is closed to prevent chimney soot from being
drawn into the house by the fan. DO NOT operate the fan when a fire is burning in the fireplace.
Common Installation Issues
Motor Stops after 10-20 Minutes
 Insufficient intake or exhaust Net Free Air. Open more doors and windows or increase the amount of ventilation in
the attic.
Unit is Noisy
 Moving the fan further into the attic will reduce the apparent noise.
 Make sure all screws and bolts are tightened.
 Verify Exhaust NFA. Inadequate NFA will result in the unit working harder and making more noise.
Not Enough Airflow
 Verify NFA intake and exhaust requirements are being met. Lack of airflow can be the result of lack of fresh air and
lack of ventilation to expel the air. Try channeling the air by opening only doors and windows in a certain area to
funnel the wind flow.
Fan Does Not Start on Low Speed
 Verify that the fan will start on High Speed. Switch to Low Speed from the High setting. For additional
troubleshooting, please contact our customer support team.