25570 Rye Canyon Rd. Valencia, California 91355
(661) 294-7999 voice (661) 294-1115 fax
www.activethermal.com
Figure 3
Installation:
1. Mount the Cool-stack II in a 2 rack-unit space above the highest significant
heat-producing equipment with the fans facing down. If using the optional top
exhaust kit, mount the Cool-stack II at the top of the rack.
2. Plug the wall-type power supply into an AC outlet that is always energized
(not "switched"). Do not connect the power supply to the Cool-stack II yet.
3. Install the thermal probe. It should normally be fastened to or just above the
hottest part of the hottest component, usually the receiver or amplifier. It will
switch the Cool-stack II from "off" to low speed at about 90 F (31C) and full
speed at about 101 F (38C
).
In installations with several pieces of heat-
producing equipment, it may be preferable to position the thermal switch
assembly in the air above the highest heat producer where it can sense the
combined heat of all of the equipment.
Note that this arrangement will slow
the response time of the Cool-stack II, as the hot equipment will have to
heat a column of air, which will then heat the thermal probe.
4. Plug the thermal probe into the "Thermal Switch" jack on the back of the
Cool-stack II. Plug the power supply connector into the "Power In" jack on the
back of the Cool-stack II.
5. The Cool-stack II can now be tested. Heating the tip of the probe using an
ordinary hair dryer should start the fans turning at low speed after a short
time. Continued heating should cause an increase in speed. Do NOT use an
open flame (matches, cigarette lighters) or a heat-shrink tubing gun for
testing.
(See below for more information on controlling the Cool-stack II.)
Completing the installation:
Verify that there is an opening for fresh air to enter the rack enclosure, preferably
low and in the front.
