Evaporative coolers are used as an
effective way to cool indoor spaces.
Also, called swamp coolers, these coolers pass it over water-saturated
pads that cause water to evaporate into it. In areas with low humidity, evaporating
water into air offers a natural and energy-efficient means of cooling.
Here are a few points that are
necessarily important for sizing, selection, installation, and maintenance of Evaporative Air Coolers.
SIZING
AND SELECTION of Evaporative Coolers
The size selection of evaporative coolers
is defined by cubic feet per minute of air that is being delivered by them to
the house.
● The most common range of Evaporative Air Coolers is 3000 to 25000
CFM.
● Air moving capacity: 20 to 40 air
changes per hour
INSTALLATION
of Evaporative Air Coolers in India
The installation mechanism of evaporative
coolers is defined in one of two ways-
The
first cooler blows air in a central location:
Such kind of configuration is suitable
for compact houses, and they are open from room to room.
Or secondly, The cooler connects with the duct-work:
It distributes the air to different
rooms. This kind of configuration is required for larger houses with hallways
& multiple bedrooms.
Most of the time people install down-flow
evaporative coolers on the roof of their houses. However, some experts choose
ground-mounted horizontal units featuring easy maintenance and low risks of
roof leaks.
Small horizontal flow coolers are
installed in windows for a cooling room or a section of the home. Such portable
evaporative coolers work well in moderate climates, however, they are not
sufficient to cool in hot climates. Room evaporative coolers can reduce the
temperature in a single room by 5 degrees to 15 degrees Fahrenheit.
OPERATION
of Evaporative Air Coolers India
For efficient working, and an evaporative
cooling mechanism, an evaporative cooler should have a minimum of two speeds
and a vent only option. The water pump does not operate, and outdoor air isn’t
humidified in the vent- only operation. Other than this, it also enables you to
use the evaporative cooler as a whole-house fan during the mild weather.
Movement of cooler air can be controlled
through the house after the adjustment of window openings. For providing
openings upto 2 square feet for each 1000 CFM of cooling efficiency, windows or
vents are opened on the leeward side of the house.
If windows are open too far, the hot air
will enter, and if windows are not open far enough, there will be humidity
created in the home. For controlling humidity and temperature across different
areas, you need to keep opening & closing the windows accordingly.
MAINTENANCE
OF EVAPORATIVE AIR COOLING UNITS
If your cooler is maintained properly and
timely, it saves you lots of time, work and money. Keep draining & cleaning
your evaporative cooler on a regular basis and ensure periodic removal of
sediments & minerals. Every season,
there should be major cleaning. Also, the more cooler runs, the more maintenance
it requires. Also, pads should be replaced a minimum of two times in a cooling
season.
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