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5.8 Automatic defrosting
During air drying, ice may form at the evaporator. The volume of ice depends on the
ambient conditions prevailing in the room to be dried. The air dryer is equipped with
an automatic air-defroster. It ensures that, depending on the extent of ice formation,
the appliance will be defrosted automatically according to the following principle:
Ø
A temperature sensor measures the condition existing in a critical area of the
evaporator.
Ø
If a temperature of -1°C has been measured for at least 5 minutes, it passes a
signal on to the defrost-system. During the defrost mode the fan keeps running,
the compressor stands still. The ice on the evaporator is defrosted with the help
of the ambient air. Depending upon ambient temperature this takes more or less
time. After conclusion of the defrost mode (at the latest after 10 minutes) the
dryer begins to work again in the normal dehumidifying mode.
6. Operating conditions
DH-condensation dryers are suitable for the effort in heated residential buildings,
garages and storerooms. DH-condensation dryers work problem-free at the
temperature range of +15 to +32°C and in the case of relative humidity from 40% to
95% r.h. .
The use in rooms with higher temperatures (> +32°C) leads to disadvantages at the
compressor. The use in rooms with lower temperatures (< +15°C) is ineffective and
can lead to icing.
Also the storage of the dehumidifier at inadmissible temperature conditions can lead
to damages / problems while immediate switch-on. Therefore, make possible short
time for adaptation for the device before switch-on.
ATTENTION:
The appliance must not be used under the following conditions:
Ø
in rooms of potentially explosive atmosphere
Ø
in rooms of aggressive atmospheres, for example ammonia and wood acid
Ø
In rooms with water which shows a pH-value outside of 7,0 to 7,4.
Remark
: In
The case of lower pH-value, corrosion occurs at all metals and damages occurs
at mortar containing materials. In the case of higher pH-value, it comes to irritation
of skin and eye mucous membrane and extreme lime deposits.
Ø
In rooms with salt or salty liquids. Salt content >1% (also sole baths).
Ø
In rooms of air treated with ozone
Ø
in rooms featuring a high concentration of solvents
Ø
in rooms of an extremely high ratio of dust
.
In the case of doubtful operating conditions it is recommended to contact the
Technical Department of Messrs. AERIAL or a specialized dealer.
Using a DH-air dryer under inadequate operating conditions will entail that the
warranty becomes null and void.
