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5
SOME NOTIONS ON HUMIDITY
Air always contains a certain amount of water in the form of vapour.
This determines the level of humidity in an atmosphere.
The capacity of the air to hold water vapour increases with
temperature. This is why in our homes, as soon as the temperature
decreases, the vapour contained in the air condenses, as is evident
on the colder surfaces in the room, such as the windows, walls etc.
The purpose of a dehumidifier is to remove the excess moisture
from the air, avoiding the damage caused by condensation.
Experts have established that the optimum environmental
conditions for our well being and for the home are obtained
between 40% and 60% relative humidity. Lower relative humidity
can be achieved with higher room temperatures. For lower room
temperatures the achievable relative humidity will be on the
higher side, closer to 60%. Therefore, with lower room tempera-
tures, you are recommended to heat the room even minimally.
This considerably increases the dehumidifying power of the
appliance. With heating, the condensation formed by the water
vapour on windows and other cold surfaces evaporates into the
air to be collected by the dehumidifier.
Problems and repairs
In the event of problems, first try and resolve them by reading the
information given in the "Troubleshooting" section on page 11.
If the appliance requires repair, always contact a Customer
Experience - see enclosed guarantee.
Always insist on original spare parts. Repairs carried out by
unauthorized personnel may be dangerous and invalidate the
guarantee.
Appropriate use
The appliance is designed and produced for domestic use only.
Use this appliance only as described in this instruction manual.
As with all electrical equipment, the instructions aim to cover
as many eventualities as possible.
However, caution and common sense should be applied when
operating and installing this appliance.
Instructions
Read these instructions carefully before installing and/or using
the appliance.
• Keep these instructions.
If the appliance is transferred to other owners, they should
also be given these instructions.
• Failure to respect the instructions may result in injury or
damage to the appliance. The manufacturer is not liable for
damage deriving from failure to follow these instructions.
DEHUMIDIFIER DD Series