10
Settings view
The Settings menu is for professional use only. It shows
the settings chosen for your ventilation system and
allows changing of settings.
CAUTION
CAUTION: Only a qualied person with
sucient training in ventilation is allowed to
make changes to the settings.
ADJUSTMENTS
Supply air is too warm
If the air coming from the ventilation system is too
warm:
1. Press the Temperature button to scroll to a
suitable lower input air target temperature.
The temperature marking on the panel changes
and the ventilation system starts adjusting itself to
reach the dened temperature.
NOTE: The unit uses all available equipment
to reach the desired temperature. Lack of
equipment, such as cooling coil, may result in
higher temperature than you have set.
NOTE: Using Eco mode will maximize the heat
recovery also in warmer weather. This can also
result in too warm supply air. In that case turn
Eco mode o.
Supply air is too cold
If the air coming from the ventilation system is too cold:
1. Press the Temperature button to scroll to a
suitable higher input air target temperature.
The temperature marking on the panel changes
and the ventilation system starts adjusting itself to
reach the dened temperature.
NOTE: The unit uses all available equipment
to reach the desired temperature. Lack of
equipment, such as after-heater, may result in
lower temperature than you have set.
NOTE: Lack of maintenance: Clogged lters,
worn out heat recovery drive belt etc. can also
result in cold supply air.
Ventilation is not sucient
If the ventilation is not sucient:
1. Make sure the lters are clean and do not need to
be replaced.
• If the lters are dirty, replace them as
instructed in chapter ”Filters” on page 12.
2. Make sure there are no major changes in your
ventilation since the system was designed and
installed.
• If there have been changes for example in
the number of people using the premises, or
in your routines otherwise, your ventilation
system may need updating. Contact your
ventilation system designer.
Ventilation is noisy
Even though these ventilation units are fairly quiet, they
are never completely silent. However, if the ventilation
system is properly planned and built – no units near the
bedrooms, soundproof doors and muers are used -
the disturbance from ventilation can be diminished.
If the ventilation is unusually noisy:
1. Make sure the lters are clean and do not need to
be replaced.
• If they are dirty, replace them as instructed in
chapter ”Filters” on page 12.
2. Make sure the fans are clean and do not need to be
cleaned.
• If they are dirty, clean them as instructed in
chapter ”Cleaning” on page 14.
3. Make sure that the automatic humidity boosting is
not running.
• Open the Information view and scroll for
parameter n1. If the parameter is visible, the
boosting is on.
NOTE: If the boosted ventilation stays
constantly on, it may be a sign of excess
humidity in the in air. Contact your ventilation
system designer.
Indoor air is too humid
In addition to feeling humidity in the air, you can also
notice excessive humidity by listening to the sounds
of the ventilation. If the automatic humidity boosting
is always on, it may be a sign that there is too much