UAB AMALVA we reserve the right to make changes without prior notice
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V2-C5-15-03-v1
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Switches off the air handling unit;
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Switches over the unit to operation according to the mode “Comfort1”;
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Switches over the unit to operation according to the mode “Comfort2”;
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Switches over the unit to operation according to the mode “Economy1”;
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Switches over the unit to operation according to the mode “Economy2”;
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Switches over the unit to operation according to the mode “Special”;
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Switches over the unit to operation according to the weekly schedule.
The OVR function provides for three operation modes selectable depending on the needs of the user:
1. The mode “When on” – the function will respond to the external control contact only when the air handling unit is on.
2. The mode “When off” – the function will respond to the external control contact only when the air handling unit is off.
3. The mode “Always” – the function will respond to the external control contact irrespective of the operating condition
of the unit.
The OVR function has the top priority and, therefore, ignores all previous
modes. The function remains active as long as the external control contact
is in the closed position.
6.7.5. Summer night cooling
Summer night cooling function is intended for energy saving during the summer season: by utilizing the outside
chill of night hours, it is possible to cool down heated rooms, i.e. to remove excessive heat that accumulated in
the room during day hours.
Summer night cooling function can start at night (from 00:00 h to 06:00 h a.m.) at any time, even when the air handling
unit is not working and is in standby mode. User can set indoor temperature, at which this function starts and stops.
When this function is active, the current ventilation level is switched to the maximum ventilation intensity
(100 %) and ventilation is performed only by means of fans, i.e. at that time neither the air cooling nor the energy
recovery functions operate.
Summer night cooling function has an operating priority over the following
functions: outdoor compensated ventilation, the air quality function, and
the recirculation function.
6.7.6. Operation on demand
The air handling unit start-up function is designed to start the unit which currently off, when one of the selected
parameters has exceeded the critical limit.
The function provided for the start-up of the unit according to:
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Room CO
2
sensor;
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Room air quality sensor VOCq;
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Room air pollution sensor VOCp;
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Room relative humidity sensor;
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Room temperature sensor.
