[CAUT] Heating system volume level

[joel a. jones]

Tim & Alan,

During the remodeling of our concert hall it was discovered that only 
one of the
four main inlets was working.   The other three were not connected, 
therefore
forcing all the air into a small pipe.   After they were all made to 
function and
the air supply balanced the hall was amazingly & acoustically pleasant.

I have no idea if this is the problem with your facility, but I listen 
in rooms
with forced air to take note of the sound and the amount of air 
movement.

Take your HVAC engineer to lunch and ask about the system.  We toured 
the
air handlers looking at the humidity system and the dirt in the 
filters.  Soon
after that our engineer found a piece of wire in the ducts that had 
been causing
an annoying  rattle in our small recital hall since 1970.  Since the 
building was
constructed this tapping would come and go without any set pattern.
Show how important it is to have a quiet  environment for music.

Find the guy with the screw driver has been, and continues to be, my 
mantra.

Joel
Joel Jones, RPT
Madison, WI
On Sep 22, 2008, at 1:42 PM, Alan McCoy wrote:

> Tim,
>
> I think most HVAC systems are designed for minimum air changes per 
> hour (or
> some such target) as dictated by state regulations. How that affects 
> the
> uses the room is put to probably does not enter the equation. Hence our
> continuing battle. The HVAC system in our recital hall has to be shut 
> off
> for each performance because it is so loud. Then of course the room 
> becomes
> unbearably hot for performers and audience.
>
> Fun!
>
> Alan
>
> -- Alan McCoy, RPT
> Eastern Washington University
> amccoy at mail.ewu.edu
> 509-359-4627
> 509-999-9512
>
>
>
>> From: Tim Coates <tcoates1 at sio.midco.net>
>> Reply-To: "College and University Technicians <caut at ptg.org>" 
>> <caut at ptg.org>
>> Date: Wed, 17 Sep 2008 21:48:46 -0500
>> To: "College and University Technicians <caut at ptg.org>" <caut at ptg.org>
>> Subject: [CAUT] Heating system volume level
>>
>> I have looked over the CAUT website concerning heating/cooling for a
>> building.  I don't see it addressing the volume aspect of heating/
>> cooling.  I am looking for information concerning the acceptable
>> volume level of units within a room.  Is there such information?  I
>> have my own opinions, and I hope others on this list have their
>> opinions.  My opinion is that heating/cooling units within the room
>> that create low frequencies make that room a poor choice as a music
>> room.   I am also of the opinion that there seems to be a point when
>> the overall volume of a heating/cooling unit exceeds a certain level
>> the room becomes unacceptable as a music room.  I don't know what
>> that point is.  Does anyone?
>>
>> Thoughts?
>>
>> Tim Coates
>>
>>
>>
>>
>>
>>
>
>
>

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