
You Need To Start With The Right Kind Of Cooling
Why Comfort Air Conditioning
Should Make You Uncomfortable
Standard building air conditioning is designed for one
thing: to keep people comfortable. In most cases, this
is done 8-12 hours each day, five days a week and only
during the warmest months. These units are simply not
built to handle the 24 hour-a-day operation associated
with computer rooms and communications facilities.
The Protection Never Stops
Mission-critical cooling systems are designed to run
the same hours as your network — continuously, year
in and year out, around the clock. These systems are
specifically designed to maintain both temperature
and humidity levels to equipment manufacturers’
specifications, which are several times more stringent
than those designed for the human body.
Some operations may be tempted to utilize standard comfort cooling systems to save money or to avoid using additional floorspace
within their facility. But while these moves may provide some benefits in the short term — they must be balanced against the
cost of potential downtime and equipment damage caused by serious overheating, as well as the risk of financial loss.
Removing Heat Without Removing
The Humidity
The biggest problem with ordinary air conditioning
systems is they are designed for the comfort of people —
not the protection of computer-based electronic systems.
Unlike people, computers generate dry (also called
sensible) heat, but not humidity.
With a large percentage of their total capacity devoted
to the removal of moisture, comfort systems can lower
room humidity far below acceptable standards for
electronic equipment — and they have no provisions
for adding moisture. To correct this situation, precision
air conditioning systems typically have a high ratio of
sensible-to-total cooling capacity to remove heat from
the air. This allows for much lower operating costs since
the type of cooling is matched to the load. These units
also use integrated humidification systems to provide
the necessary level of moisture control.
Using rigid, overhead ducts
provides insufficient air volume
(350-400 CFM/Ton) which
results in hot spots. They are
also difficult to relocate.
Minimal air filtration
is typically provided
with comfort systems.
Using separate humidification
systems, not controlled by
the cooling system, can
waste energy and reduce the
stability of the environment.
Comfort systems can over-dry
room air because of their
lower Sensible Heat Ratio.
They typically do not provide
integral humidity control.
Comfort Air
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