C6-17-08
EN
UAB AMALVA we reserve the right to make changes without prior notice
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Special operation modes
Kitchen.
Recommended during cooking, when running the kitchen hood. This mode increases
the efficiency of the hood, as the air handling unit will increase the air flow to the premises by up
to 80%, and the discharge is reduced to a minimum intensity of 20%.
Fireplace.
The recommended choice when lighting a fireplace. This mode improves the suction
of the smoke through the chimney, causing a small overpressure in the room, because the unit
supplies fresh air at a 60% intensity and removes the air from the premises at a 50% intensity.
Override.
This mode activates the air handling unit at the set intensity of 80%, despite the other
mode settings. This mode has the highest priority over the other modes, and will run even after
the air handling unit has been turned off.
Holidays.
The recommended choice when leaving home for a longer period of time. The prem
-
ises will be ventilated periodically in 30 min. cycles (several times a day) at the minimum intensity.
Any special operating modes can be activated in the panel and by using a mobile phone or computer. When
you select a special mode, you will need to enter the duration of its operation, after which the air handling unit
will return to the previous mode. KITCHEN, FIREPLACE and OVERRIDE modes are set for time range from
1 to 300 min. In HOLIDAY mode, the time interval can be set from 1 day to 90 days, or a specific date can be
selected.
The KITCHEN, FIREPLACE and OVERRIDE special modes can be ac
-
tivated by the external control contacts (Fig. 1.3 b). Modes activation by
the contacts has a priority.
The parameters for all eight modes are preset at the factory, but each of them can be modified individually.
This requires selecting the desired mode and touching the icon for five seconds. In the window that opens, you
can change the air flow, temperature and deactivate the electric heater in the unit:
Reset settings
Supply flow
250 m
3
/h
Extract flow
250 m
3
/h
Electric heater
On
Air temperature
20°C
NORMAL
Heater blocking
On
Cooler blocking
On
Min. supply temperature
15°C
Free cooling
On
ECO mode
Max. supply temperature
25°C
Reset settings
2.4.4. ECO mode
ECO – an energy-saving mode to minimize the power consumption of the air
handling unit. The ECO mode has three-fold operation effects:
• Blocking the electric heater operation in the air handling unit, and blocking of
all external air heating/cooling elements.
• Activation of the Free cooling function, which at some point blocks the heat re
-
covery process, if the outdoor coolness has to be used in an energy-efficient
way. Cooling with the outdoor air automatically starts if the room air tempera
-
ture is above a set value, and the outdoor air temperature at that time is lower
than that in the room but not below the set min. value. Similarly, in the case of
the opposite temperature conditions. Free heating is carried out.
• As the temperature control with heat recovery alone will not be ensured at all
times, in the case of an extreme conditions, when the supply air temperature
is below the specified minimum value (in winter) or exceeds the maximum
value (in summer), the unit will try to maintain the temperature by decreasing the ventilation intensity. If the
temperature does not reach the required min./max. limits over a long period of time, the air volume can be
reduced to the lowest possible value (20%).
