DIAL PEC-A-11000-1M User Manual - Page 5

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DIAL PEC-A-11000-1M User Manual

HOW EVAPORATIVE AIR COOLERS WORK

The evaporative cooler cools the air by means of evaporation. When water evaporates, liquid water
is converted into vapor using the thermal energy in the air resulting in a lower air temperature and
spot cooling effect. Evaporative cooling therefore causes a drop in the temperature of air proportional
to the sensible heat drop and an increase in humidity proportional to the latent heat gain.
• The recommended relative humidity for optimum operation is 60% or lower. A drier climate makes
for more noticeable cooling.
• The evaporative air cooler should not be used in enclosed or sealed spaces. It must be kept level
and there must always be water in the water tank. In a room setting, doors and windows should
be open to allow cross air flow.
• When the product is used for the first time the Honeycomb cooling media may have an odor. This
should dissipate within a week of use.
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