Owner's Manual
HBH~H
Active Thermal Management
The trusted
name
in
thermal protection
...
System 3-E Installation Instructions
The Active Thermal Management System 3 is a complete ventilating system for small audio/video
enclosures or sections
of
large enclosures. It is comprised
of
two high quality 3.125" (80mm) axial-flow fans
with grilles, a plug-type power supply, and a thermally-sensitive control unit with remote probe.
The fans are surface-mounted over
3"
round holes. In free air, the fans can each move approximately
15
cubic feet
of
air per minute~ in a typical installation that figure is typically reduced
to
approximately 10 to 12
CFM, sufficient to properly ventilate an enclosure
of
moderate size. (A popular size for smaller enclosures is 2'
wide, 2' deep, and 2 ½' - 3' high, for a gross volume
of
only
10
- 12 cubic feet.) When equipment is installed, the
air within the cabinet is further reduced, so that, with proper placemenl two small fans can change all
of
the air
in the enclosure in less than a minute.
Fan location
The location
of
the two fans is the most important consideration in installing the System
3.
Properly
placed, ventilation will be efficient~
if
improperly located, ventilation will
be
reduced. The key to effective
ventilation is to place the fans (usually one is used to bring room air in, one used to exhaust heated air) so that a
line drawn between them passes through or over the main heat source(s). Jfnecessary, both
fans
can be used in
intake
or
exhaust mode. The hot equipment should lie directly in the path
of
air flow for maximum effectiveness
of
the System 3 ( or any ventilating system).
This obviously preferable arrangement is not always easy to achieve in practice. Doors, walls, shelves, etc.,
always seem to be in the
way!
There are several ways to get around obstacles, and the installer must use his
imagination to achieve the best results
ma
given installation. Here are some suggestions for fan placement:
►
Intake fans can be located in or below "kick-panels"~ in side walls (for free or semi-free standing cabinets)
or on the back wall,
if
there is at least
2"
clearance between the back
of
the cabinet and the wall.
►
Exhaust fans most often are best located high on the rear panel, but can also be mounted on a side panel or
even on the top surface
if
there's a video screen or speaker mounted on the top to block the view
of
the fan.
When installing fans, note that air exits from the side
of
the fan with the center label. Fans can be
mounted using #6 or #8 screws.
25570
Rye
Canyon
Rd. Suite D
661-294-7999 (voice)
tech
in
fo(a)activethe rm al. com
Valencia, CA 91355
661-294-1115 (fax)
www
.activethermal.com