2
USING YOUR AIR CONDITIONER
Evaporative
air conditioners
provide
very
effective cooling by drawing outside air through
filter pads saturated with water. This water
washes the air and cools it by a process of
evaporation. There are a number of operating
techniques and circumstances of which you
should be aware to get the best performance
from your evaporative air conditioner.
To provide effective cooling or ventilation, the air
conditioner must be operated with sufficient
openings to exhaust the air. For example:
windows, doors or ducts. The location of the
opening(s) will determine the pattern of cool air
flow. The following are the minimum opening
sizes required in square metres:
EA70
.3
EX125 EA90
.4
EX145 EA100
.5
EX165 EA120
.6
EX190 EA140
.7
EX210 EA 150
.8
In light wind conditions more cooling can be
obtained by opening additional windows and
doors. In windy conditions close openings facing
the wind.
Generally, openings opposite the supply vents
are best. Some experimentation will soon show
the arrangement most suited to your
requirements.For a multiple outlet system, this is
generally 1 (one) window opened 100 to 150 mm
per outlet.
For a short time, when operating with new filter
pads, you may detect an odour like "wet timber”.
This is the filter material becoming conditioned to
use.
In many areas the water supply is quite hard,
when this water is evaporated through the filter
pads, the hardness is deposited as a scale on the
pad. To reduce this scale build-up and to retain
efficient filter pads a small amount of water is
drained off from the system.
The continuous drain of small amounts of water
ensures that fresh water is added to
UNIT
AREA (m )
2
dilute any build-up of scale or salts. The
‘
bleed
’
rate for your air conditioner will depend on local
operating conditions and will be adjusted during
installation.
If your air conditioner is fitted with the
then it will
automatically monitor the quality of the water in
the air conditioner and when it detects a build-up
of dissolved solids it will drain some water from
the system and add some fresh water to optimise
operating conditions and minimise water usage.
On extremely hot, dry days when running at the
highest speed salts build-up rapidly in the water.
The
then
operates frequently. In these conditions it will
drain a similar water quantity to a conventional
bleed system. However, most of the time less
water evaporates, so less salt builds up and the
operates
less frequently. It is during these conditions that
your
saves
thousands of litres of water compared to
conventional "bleed" or "dump" systems.
On initial installation of your air conditioner, the
will operate
more frequently until residual salts in the filter
pad are flushed away.
If your air conditioner is fitted with a drain system,
all water will be drained from the unit after 4 days
of non-use (or after 3 hours with the 2 speed
control box). This is to ensure that the tank
remains dry when not in use, but also minimises
water wastage).
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electronic sensor
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manager
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Drain System
