| Self-Contained Application And Design
Information Design Tips
|
Equipment Room
Location and Orientation |
Maximizing the Opportunities Of Acoustic Design Alternatives
Many system design factors are critical to achieving successful acoustical
results for a self-contained project. The following
provides a prioritized list of design alternatives
to maximize the acoustical performance
of your design. The most important items are listed
first.
The following are general recommendations only. For more information or
when concern about a particular installation exists,
contact an acoustical consultant for assistance.
Location And Orientation Of Mechanical Equipment Room
The equipment room should be surrounded by stairwells, utility rooms,
electrical closets and restrooms if possible. This
minimizes the acoustic effects and risk of workmanship or installation errors.
The discharge and return air ductwork should be placed over these less
acoustically sensitive areas.
Vertical or horizontal fresh air shafts can be used. Consult code requirements
for fresh air and smoke purge constraints.
Return Air Ductwork
The return air should be ducted into the mechanical equipment room. It does
not have to be ducted to the unit.
However, this duct should have an elbow inside the equipment room. The ductwork
should extend from the elbow inside the equipment
room far enough to block the "line of sight" to the exterior of the equipment room.
The recommended length of ductwork exterior to the
equipment is 15 feet. This duct should be lined with 2 inch, 3 lb. density
Supply Air Ductwork
The supply air duct should be lined with 2 inch, 3 lb.
density fiberglass. The flexible horizontal discharge option helps avoid complicated
ductwork transitions wall.
The aspect ratio of the duct should be as small as possible. Large flat room panels transmit sound like speakers and
should be minimized. In addition, potential "oil
canning" of the duct due to flow turbulence
will be minimized with small aspect ratios.
The flexible horizontal discharge This lining should extend at least 15 option helps avoid complicated feet out from the equipment room ductwork transitions. |
