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Electronic equipment has two major foes, dirt and heat. Industrial electronics is housed in expensive cabinetry to ensure that equipment is kept clean. How clean the equipment remains, depends on how well the enclosure is sealed and how diligent operating personnel are in keeping cabinet doors closed. Depending on your operating environment, and the computer equipment in use, you may require some degree of heat management. Unfortunately there are too many variables for us to provide us with any definitive recommendations, but the following discussion might give you some idea. PC's with CPU's prior to PIII 600MHz typically had power supply units of no more than 200VA. Approximately 100Watts, (half of the power supply rating) was dissipated as heat. This amount of heat could safely be handled by normal conduction through the Clean-Cab steel walls, and then by convection to the outside air. The resultant temperature inside the enclosure rarely exceeded 35 deg C, and the Clean-Cab did not need any additional cooling measures, provided the following was adhered to
Our Air2Air heat exchange unit was developed to provide 4-6 degrees of headroom where ambient temperatures exceeded 30 deg C, but remained below 35 deg C. Unfortunately present day computers are manufactured with power supply units of 250VA and greater. Greater chip densities and higher disk speeds mean that the heat generated has increased as a percentage of the power supply capacity. Although the power supply capacity may only have increased to 300VA, the heat dissipation can reach 200W. Without any additional cooling, the internal Clean-Cab temperature can easily reach 50 deg C. The temperature inside the PC itself would be 5-7 degrees hotter. Hard disk manufacturers recommend that maximum operating temperatures do not exceed 65 deg C. Even with the Air2Air unit installed, operating temperatures are higher than recommended if you are to successfully amortise the cost of your computer equipment over their financial lives.
IMPROVED CLEAN-CAB HEAT
MANAGEMENT Extend
the life of your existing Clean-Cab
The Air2Air II heat exchange unit has a large area
thin foil aluminium heat exchange element and counter flow internal and external air
circuits, this unit provides at least 4 times the heat dissipation capacity of its
predecessor, for less than double the price. Upgrading
to the new Air2Air II is very easy. We will
supply the new Air2Air II heat exchange module,
together with the appropriate new lid to your Clean-Cab.
The unit comes with an IEC male to female extension cord. Simply plug your original power
cord into the Air2Air II, and connect the new cable from the Air2Air II to
your PC. (Please note that at this stage the Air2Air
II is only available for our tower Clean-Cab
units) Remember
that if you own an early version of Clean-Cab,
additional or different cables can easily be accommodated by installing the necessary
cables into spare cable openings on your existing PCP (peripheral connection plate). In
certain cases it may be necessary to change the peripheral connection plate to support the
necessary cables, but again this is quite straight forward. The rest of the enclosure is
re-usable, ensuring an extremely cost effective upgrade. PS :
An added advantage is that the Air2Air Rev II has been designed as a generic cooling unit.
With suitable air flow cut-outs, it can also be installed on other electronic equipment
enclosures.
Length
:
530mm
Height : 145mm Width
:
220mm
Mass : 7.8 kg Power
consumption :
270mA @ 220VAC Airflow
:
2.5m3/min per circuit
Performance : 15 W/deg Celsius Part Number : CC_ME102 Price : Call
Send mail to info at drakeng dot co dot za with questions or comments about this web
site.
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