Itho Daalderop HRU 400, Инструкция по установке и использованию

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3.3. Connecting the channels
In order to prevent condensation, the duct coming from outside
and the duct going out to the ventilation unit must be insulated
thermally and vapour-tight.
3..1. Supply air from outside
3..4. Exhaust air to the outside
The ventilation unit draws in outside air via this spout. This
duct must be thermally and vapour tightly insulated to prevent
condensation on the outside of the duct.
3..2. Supply air to the dwelling
Via this spout, the ventilation unit discharges the exhaust air to the
outside. This duct must be thermally and vapour-tight insulated to
prevent condensation on the inside and outside of the duct. It is
recommended to use a roof gutter that prevents condensation or
rainwater from leaking. If this is not the case, the components of
the flue system must be installed watertight between this outlet and
the roof gutter. The unit drains any condensation water via the
condensation drain.
3.4. Frost valve opening
Via this spout, the ventilation unit feeds the heated air into the
house. For optimum comfort it is necessary to install a silencer in
this duct.
3..3. Exhaust air from dwelling
The frost valve serves to protect the heat exchanger
against frost.
When the ventilation unit is mounted in an uninsulated room, hot
air can be introduced from another room via the frost flap with an
insulated and vapour-tight duct.
3.5. Connecting condensation drain
Via one of these spouts, the ventilation unit extracts the exhaust air
from the house. In principle, this duct does not need to be thermally
insulated. Only if the ventilation unit is placed outside the thermal
shell of the house (for example in an uninsulated attic) is it
advisable to insulate the duct thermally and vapour-tight.
In winter, the exhaust air from the house can condense in the heat
exchanger. A condensation drain is integrated in the ventilation
unit for this purpose.
Note
For optimum comfort it is necessary to install a silencer in this
duct.
ä Attention
!
If the ventilation unit is placed outside the thermal shell of the
dwelling (for example, in an uninsulated attic), the condensation
drain must be thermally insulated up to the ventilation unit.
ä Attention
!
The opening of the frost valve must remain free at all times. Do
not place any objects on top of the appliance!