17
ä Attention
!
The building dust can damage the heat exchanger if no filter
is inserted.
2.12. Valves
The quantity of air to be extracted is regulated by law, and the
quantity of air to be blown in must be in balance with this. In other
words, as much air has to be extracted as is supplied. The
appliance regulates this balance on its own. The minimum air
quantity per room is also determined by law. The quantities are
chosen in such a way that no unnecessary energy is wasted and an
optimum indoor climate is still achieved. For example, for each
room the air volume that is extracted and supplied is different in
size. As a result, the extraction and supply valves each have their
own settings.
2.13. Application in a new home
Every new home contains a large amount of building moisture. This
moisture comes from wet building materials such as concrete,
cement, paint and glue. The building moisture disappears best by
ventilating the house well and keeping the temperature as constant
as possible, preferably at room temperature.
Dry-fire - not too fast.
By bringing heat into the house you stimulate the drying process of
the house, this is also known as dry firing. This drying must not be
done too quickly, because drying out too quickly results in a lot of
damage (such as shrinkage cracks). Keep in mind that this drying
process can take up to six months. Set the heating to 15 to 18°C,
and when you are going to live there to 20 degrees. Do not turn up
the heating, because if it gets too hot the materials dry too quickly
and damage can occur.
Ventilation during dry firing.
Good ventilation is essential during the drying process. During the
first year, keep about 5 centimetres of space between the walls
and your furniture so that moisture can escape. In addition, the
mechanical ventilation system must always be on, so never
unplug it from the wall socket. Put the ventilation system in a high
position as much as possible during the first months.
This creates the best possible air circulation in the home.
Note
It is very important that the occupant does not change the
setting of the valves. This disrupts the proper functioning of the
entire ventilation system. The valves may not be exchanged.
ä Attention
!
In the case of a new house, the filters of the ventilation unit must
be cleaned after 1 week and replaced after 3 months!
Summary of Contents for HRU 400
Page 1: ...Itho Daalderop HRU 400 Installation use A...
Page 2: ...Original document...
