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Extractor Fan noise
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maryjane
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05/11/2018 - 5:16 pm
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3 Extractor fans are installed in the roof of my apartment block to service all 8 units.  They are located directly above my bedroom.  There is a constant humming 24 hours a day and it is especially disturbing at night.  The previous owner of my unit was deaf and therefore this issue has not been raised before.  In spite of mentioning this to other owners and the strata managers no action has been taken.  We are having a meeting next week.   How can I get them to take action?  If the noise has to be measured by an outside source then whose cost is this?

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BONNIE L
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06/11/2018 - 10:38 am
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In my experience, the issue needs to be brought up urgently, and in writing, ahead of the meeting.  It needs to state the health issue for what it is.  Perhaps a solution could also be suggested, and research by yourself on the practicality, and the cost, of relocating the appliances.   A reputable electrical firm should be able to quote in writing.

Trust that helps, and it’s all possible.

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Happy Strata
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06/11/2018 - 6:40 pm
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Use of a VSD (variable speed device) on extractor fans can be very beneficial. If a fan is reduced 20% in speed it can quite often reduce power consumption by 50% and noise by an discernible level (not sure how much precisely). These are not that expensive to install. 

An even fancier option is a smarter VSD that runs at 80% from say 6am to 10pm when people will be using their bathooms and then drops the power to 50% from 10pm to 6am. This would really get the noise down.

The cost of implementing the VSDs can be recouped in running cost savings over a few years. So no reason for an OC to not be keen to implement. 

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maryjane
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08/11/2018 - 3:23 pm
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Thank you both for the comments – much appreciated.

Mary Jane

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