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Idiomas disponibles
Idiomas disponibles
HUMIDITY AND EVAPORATIVE COOLING
A given volume of air at a certain temperature and
pressure has the ability to absorb and hold a certain
amount of water vapor. If that volume of air contains
50% of the amount of moisture that it is capable of
holding, it said to be at 50% relative humidity.
The higher the temperature of the air, the higher the
amount of moisture it is capable of holding.
Any change in the temperature without a corresponding
change in the pressure results in an increase or
decrease in the amount of water vapor the air can hold.
If the temperature increases without an increase in the
pressure, the result is a decrease in the relative humidity,
and thus an increase in its ability to hold moisture. That
is to say that in the morning the humidity may be high,
but as the day passes and the temperature increases
the relative humidity will naturally decrease. The extent
to which relative humidity decreases through the day
can be affected by local weather systems and proximity
to large bodies of water. If an increase in temperature
accompanied by a weather system containing moisture
moves in, then the drop in humidity will not be as great.
Nevertheless, the fact remains that relative humidity
does drop as air temperature increases. In fact, for
every 20˚F rise in temperature, the moisture-holding
ability of air doubles. For instance, if the temperature of
the air was 70˚F and the relative humidity was 100% at
5 a.m., and the temperature increased to 90˚F at noon,
the moisture holding ability of the air would double.
UNPACKING
The unit is shipped completely assembled and sitting on
a plastic pallet with a large cover box strapped over the
unit. It is a simple matter to cut the straps and remove
the box by lifting it over the unit.
CONNECTING THE WATER AND
ELECTRICITY
WATER CONNECTION (Applies only to H-3030)
NOTE: Unit must be in upright and level position.
After the unit has been thoroughly tested at the
factory, a special 2-sided brass hose adapter is
attached to the water inlet on the side of the unit, which
is below the spray bar adjustment and drain valves.
A standard garden hose is attached to this brass hose
adapter and cinched down to preclude leaks.
Visually verify that the hose washer is in position
and in good condition.
PAGE 2 OF 21
INTRODUCTION CONTINUED
As a result, the air would now be holding only half of
the moisture it is capable of holding, and the relative
day, the drier the air becomes, and the more cooling
that can take place through the evaporation of water.
This means that when the day gets hot enough to
cooling device to work more effectively.
Since any evaporative cooling device must evaporate
water to achieve cooling, more water vapor is put into
the air. As the ambient relative humidity increases, it
efficiency of any evaporative cooling device is directly
at a given relative humidity. A unit with low efficiency will
cool only at low relative humidity levels, while a unit with
EVAPORATIVE COOLING AND THE UNIT
The effectiveness of the unit is best appreciated when it
time the outside temperature reaches 85˚F, the humidity
the other goes down.
SETUP
Once the hose connection is made, water may be
turned on to the unit. Water should now be entering
through the float valve to fill the sump tank. To verify
that your connections are secure, visually inspect
connections for leaks. Remove the cooling pads.*
Once the sump tank is filled, the water flow should
checked for leaks. Pay particular attention to the hose
connection into the float valve and the connections into
the brass inlet fitting.
All of these inspections have been performed at the
to loosen.
The cooling pads may now be replaced.*
*See page 7 for details.
humidity of the air would drop to 50%. The hotter the
require cooling, the relative humidity will be much
lower than in the morning and will allow an evaporative
becomes more difficult to put moisture into the air. The
related to its ability to evaporate water (cooling the air)
high efficiency can achieve effective cooling at much
higher humidity levels.
is above 85˚F and below 75% relative humidity. By the
is almost always below 75%. Generally, as one goes up,
NOTE: Water supply inlet pressure should be
limited to 50 psi maximum.
stop and the inlet connections may now be visually
factory but shipping may have caused connections
0621 IH-3030
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