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25570 Rye Canyon Rd. Valencia, California 91355
(661) 294-7999 voice (661) 294-1115 fax
techinfo@activethermal.com www.activethermal.com
Active Thermal Management
The trusted name in thermal protection
Cool-wall Installation Instructions
All Cool-wall fan panels are mounted to supply fresh air to or extract heated air from
video panels (or other heat-producing systems). Mounting holes are not pre-made in
the panels; they should be drilled at locations appropriate for each specific
application. Select the location for the thermal probe, the small silver-colored cylinder
attached to the thermal control board located between the center fans. Position the
probe where it can sense the heat from the equipment; the probe’s lead can be
lengthened as much as necessary using any 2-conductor wire – voltage and current is
extremely low; the probe has no polarity.
Plug the power supply into an AC outlet that is always live and plug the power
supply’s output lead into the connector attached to the control unit.
Note that the
small temperature display on the control board reads in degrees Celsius, not
Fahrenheit.
When the temperature at the thermistor reaches 32 degrees C, (about 90F – see
below) the fans will begin to turn. The fans will stop when the temperature falls below
29C (about 85F). A hair dryer can be used to check for proper operation.
To change the temperature at which the fans turn ON, press the SET button on the
control board momentarily. The display will blink. Press the ▼ or ▲ buttons to
change to the desired temperature. After a few seconds, the new temperature will be
stored.
To change the temperature at which the fans turn OFF, decide how many degrees
below the turn-on temperature you wish the fans to stop, called the differential. (The
factory setting is 3 Celsius degrees, or about 5 Fahrenheit degrees.) To change the
differential:
Hold the SET button for 5 seconds. P0 will be displayed.* Press the ▲button once to
change the display to P1, then press SET again. The present differential temperature
will be displayed. Use the ▲ and ▼buttons to set the desired differential. The display
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25570 Rye Canyon Rd. Valencia, California 91355
(661) 294-7999 voice (661) 294-1115 fax
techinfo@activethermal.com www.activethermal.com
will return to showing system temperature after a few seconds; the new temperature
differential has been stored.
OVER
For your convenience, here are some commonly-used Fahrenheit temperatures and
their Celsius equivalents, rounded to the nearest whole degree:
75F = 24C 80F = 27C
85F = 29C 90F = 32C
95F = 35C 100F = 38C
*Pressing the ▲ or ▼ buttons again will cycle the display through the following
codes: P1, P2, P3, P4, P5, P6, and back to P0. Many of these codes refer to
parameters used in heating and refrigeration systems, not in cooling systems. Should
any be adjusted accidentally, restore them to their factory settings:
P0 – C (for “cooling”)
P1 – Desired differential, set as described above
P2 - 110
P3 - -50
P4 - 0
P5 - 0
P6 – Off
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