Fan and Dimmer Switch

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  #1  
Old 09-25-08, 09:17 AM
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Question Fan and Dimmer Switch

This is more of an electrical question than a heat a/c one so I am posting it here. I am trying to balance my HVAC system in an old cape. The ducting is poorly set up for upstairs so I have installed axillary in-line duct fans in the 3 trunks that feed upstairs. I now have better air flow but it is not balanced. Can I use regular light dimer switches to reduce the speed of the auxiliary fans in proportion to balance the output air flow?

Thanks, Beer 4U2

Doug

What can go wrong in my house ~ does
 
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Old 09-25-08, 09:34 AM
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Not very well no. The likely outcome is that it will ruin the dimmer, the motor or the motor will buzz obnoxiously.
 
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Old 09-25-08, 10:35 AM
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Originally Posted by ibpooks View Post
Not very well no. The likely outcome is that it will ruin the dimmer, the motor or the motor will buzz obnoxiously.
Any suggestions in enexpensively reducing the fan speed in order to balance the system. I went from no airflow upstairs to it now being off balance.

Thanks for the advice. Beer 4U2

Doug

What can go wrong at my house ~ DOES!
 
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Old 09-25-08, 12:30 PM
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You could try dampers in the duct work.
 
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