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Kurt Albershardt
 
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Default Roof mounted air conditioner noise

Julian Russell wrote:

The roof of the building in which my studio is located has a condenser that
is vibrating and sending an awful sound through my place. Can anyone suggest
a method to decouple it from the roof to get rid of the vibration?


HVAC supply houses will have several options available. Call your
contractor or head down to the supply house and try to sweet-talk them
into selling to you.



  #2   Report Post  
Kurt Albershardt
 
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Default Roof mounted air conditioner noise

Julian Russell wrote:

The roof of the building in which my studio is located has a condenser that
is vibrating and sending an awful sound through my place. Can anyone suggest
a method to decouple it from the roof to get rid of the vibration?



Should have mentioned that you will most likely need to decouple the
unit from the roof as well as from the ductwork. There are parts for
both these tasks.




  #3   Report Post  
Raymond
 
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Default Roof mounted air conditioner noise

Julian Russell wrote
Can anyone suggest
a method to decouple it from the roof to get rid of the vibration?


Room inside a room isolation and a foot of airspace for all walls, this may
just do the trick. But it may be cheaper to just move your studio to another
building.
  #4   Report Post  
Julian Russell
 
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Default Roof mounted air conditioner noise

Thanks guys, but...

Moving to another studio or moving the unit are not really options... how
'bout some isolation and/or vibration control ideas?

"Scott Dorsey" wrote in message
...
Julian Russell wrote:
The roof of the building in which my studio is located has a condenser

that
is vibrating and sending an awful sound through my place. Can anyone

suggest
a method to decouple it from the roof to get rid of the vibration?


It may be easier to move it to another location so that it's not a on a
node. Ask your local acoustician.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."



  #5   Report Post  
Dale Farmer
 
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Default Roof mounted air conditioner noise



Scott Dorsey wrote:

Julian Russell wrote:
Thanks guys, but...

Moving to another studio or moving the unit are not really options... how
'bout some isolation and/or vibration control ideas?


Moving the unit may well be cheaper than the degree of shockmounting required.
It might also be cheaper to replace the motor with a faster or slower one,
to change the vibration frequency and move the modes around. Either way,
you're talking about doing some engineering here.

Goodyear makes some isolation platforms and mounts for compressors and
air handlers but you need to find out where the building resonances are
in order to get anything like this to work.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."


What scott says. Is it the unit that services your spaces or someone else's
space in the building?

--Dale




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Julian Russell
 
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Default Roof mounted air conditioner noise

Someone elses.... errr..


"Dale Farmer" wrote in message
...


Scott Dorsey wrote:

Julian Russell wrote:
Thanks guys, but...

Moving to another studio or moving the unit are not really options...

how
'bout some isolation and/or vibration control ideas?


Moving the unit may well be cheaper than the degree of shockmounting

required.
It might also be cheaper to replace the motor with a faster or slower

one,
to change the vibration frequency and move the modes around. Either

way,
you're talking about doing some engineering here.

Goodyear makes some isolation platforms and mounts for compressors and
air handlers but you need to find out where the building resonances are
in order to get anything like this to work.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."


What scott says. Is it the unit that services your spaces or someone

else's
space in the building?

--Dale




  #7   Report Post  
Kurt Albershardt
 
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Default Roof mounted air conditioner noise

Scott Dorsey wrote:

Goodyear makes some isolation platforms and mounts for compressors and
air handlers


http://www.techproductscorp.com/ also has a lot of good options in a
wide range of sizes.



but you need to find out where the building resonances are
in order to get anything like this to work.


If there's no shockmounting of any sort on the units already and if the
noise frequency is high enough, these can help.



  #8   Report Post  
James Boyk
 
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Default Roof mounted air conditioner noise

You need professional assistance from a *good* acoustician (not like the
one who made a hall 10 dB noisier at 120 Hz for me, then turned his back
on the job).

James Boyk

  #9   Report Post  
Ty Ford
 
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Default Roof mounted air conditioner noise

In Article , "Julian Russell"
wrote:
Hi,
The roof of the building in which my studio is located has a condenser that
is vibrating and sending an awful sound through my place. Can anyone suggest
a method to decouple it from the roof to get rid of the vibration?

Thanks in advance,

Julian Russell
http://magpiesound.com



Hi Julian,

In the US, Mason Industries sells industrial noise dampeners of all sorts.
I'm sure they would have something to reduce the problem.

Regards,

Ty Ford

For Ty Ford V/O demos, audio services and equipment reviews,
click on http://www.jagunet.com/~tford

  #10   Report Post  
Julian Russell
 
Posts: n/a
Default Roof mounted air conditioner noise

Thanks Ty,

The vibration is slight but annoying, it is definitely just a question of
de-coupling the beast from the roof
My studio partner found some neat cork and rubber sandwiches that we are
going to put under the pad... wish me luck

Julian Russell
http://magpiesound.com




"Ty Ford" wrote in message
...
In Article , "Julian Russell"
wrote:
Hi,
The roof of the building in which my studio is located has a condenser

that
is vibrating and sending an awful sound through my place. Can anyone

suggest
a method to decouple it from the roof to get rid of the vibration?

Thanks in advance,

Julian Russell
http://magpiesound.com



Hi Julian,

In the US, Mason Industries sells industrial noise dampeners of all sorts.
I'm sure they would have something to reduce the problem.

Regards,

Ty Ford

For Ty Ford V/O demos, audio services and equipment reviews,
click on http://www.jagunet.com/~tford





  #11   Report Post  
EganMedia
 
Posts: n/a
Default Roof mounted air conditioner noise

The roof of the building in which my studio is located has a condenser that
is vibrating and sending an awful sound through my place. Can anyone

suggest
a method to decouple it from the roof to get rid of the vibration?


There are lots of companies that offer isolation products. Try
www.kineticsnoise.com

The most popular method I've seen is to build a steel hanging support for the
unit and hang the unit with springs. My air handlers are inside the building
and are all hung from the ceiling with springs. The compressors are on the
ground outside on vibration isolators.


Joe Egan
EMP
Colchester, VT
www.eganmedia.com
  #12   Report Post  
Richard Crowley
 
Posts: n/a
Default Roof mounted air conditioner noise


"EganMedia" wrote in message
...
The roof of the building in which my studio is located has a condenser

that
is vibrating and sending an awful sound through my place. Can anyone

suggest
a method to decouple it from the roof to get rid of the vibration?


There are lots of companies that offer isolation products. Try
www.kineticsnoise.com

The most popular method I've seen is to build a steel hanging support for

the
unit and hang the unit with springs. My air handlers are inside the

building
and are all hung from the ceiling with springs. The compressors are on

the
ground outside on vibration isolators.


Wouldn't it be cheaper to fix whatever is out of balance?


  #13   Report Post  
DIANE KIRK DIANE KIRK is offline
Banned
 
Posts: 3
Default

Quote:
Originally Posted by Kurt Albershardt View Post
Julian Russell wrote:

The roof of the building in which my studio is located has a condenser that
is vibrating and sending an awful sound through my place. Can anyone suggest
a method to decouple it from the roof to get rid of the vibration?


HVAC supply houses will have several options available. Call your
contractor or head down to the supply house and try to sweet-talk them
into selling to you.


You need a roof flashing. go to a local HVAC- Heating, Ventilation, and Air Conditioning supplier.
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