Owner's Manual

25570 Rye Canyon Rd. Valencia, California 91355
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[e-mail] www.activethermal.com
Active Thermal Management
The trusted name in thermal protection
Parts list – before proceeding, check that you have received all of the following:
(1) Cool-stack I main chassis (Intake or Exhaust)
(1) Remote thermal probe
(1) Power supply
Instructions for installation of the Cool-stack I

rack-mount ventilators, INTAKE
& EXHAUST models.
(For units built after 9/2011)
The Cool-stack I ventilators, both intake & exhaust, are controlled by a 90° thermal control.
Older units (made before September 2011) had provisions for 12 volt trigger control; this feature
was eliminated to allow the use of a more precise and faster-responding electronic thermal
control system.
INSTALLATION
The Cool-stack I is suitable for cooling a small rack or a portion of a larger rack.
o Mount the intake version of the Cool-stack I low in a small rack, with the fans facing UP.
It will draw room air in & force it up. If used in a larger rack, mount it below the section
to be cooled, with a passive vent panel at the top of the section.
o Mount the exhaust-type Cool-stack I high in a small rack, fans facing DOWN; it will
draw heated air up and out of the rack. If used in a larger rack, mount it above the section
to be cooled, with a passive vent panel at the bottom of the section.
Mount the thermal probe on the equipment being monitored, or position it so that it can sense the
hottest air in the enclosure. (This might be at the highest point in the cabinet or just above the
hottest component.)