64
COMPACT
COMPACT Control System
Controls
The unit normally operates in the automatic operation
mode and is then controlled via the internal time switch
clock (timer).
It is also possible to control the air handling unit manually.
In addition, the air handling unit can be externally control-
led via communication or via external accessories such as
presence detectors.
The control unit has as standard two outputs and two
inputs for external operation functions (with the TBIQ IQ-
nomic Plus module the number of inputs and outputs re-
spectively can be increased to four). The outputs can be
used for indicating in-operation status and the inputs can
be used for unit operation regulated via presence detec-
tors, for instance.
Time switch clock (timer)
The current date and time can be set and preset and ad-
justed whenever required. The Time switch clock (timer)
automatically takes leap years into consideration.
The system automatically manages changes between
summer/winter time to EU Standard. The function can,
however, not be blocked.
Times and days can be set when the unit is to run in the
high speed mode, low speed mode or be switched off.
Eight different time channels (scheduling) can be set. If
the same in-operation periods are to apply every day of
the week (Monday-Sunday), it will be sufficient to pro-
gram one time channel.
The year channels make it possible to set deviating in-
operation times for certain periods in the year, such as
longer holidays. Eight different year channels (yearly time
schedules) can be set.
Starting sequence
The COMPACT system has a starting sequence with fac-
tory-preset time delay between each step as follows:
1. The damper relay is energised and opens the shut-off
damper (if installed).
2. Time delay: 30 seconds.
The extract air fan starts and rotary heat exchanger is
controlled to the max. energy recovery setting. The air
heater for hot water (if installed) is activated to gener-
ate 40% of its max capacity.
3. Time delay: 90 seconds.
The supply air fan starts up.
4. Time delay: 90 seconds.
The temperature regulation (control) function begins
according to its regular settings.
The starting sequence prevents the extract air fan from
starting up if the shut-off damper is closed. By starting
the extract air fan first, and controlling the heat exchang-
er to the max. recovery setting, the system also avoids
chilling the premises with cool supply air under cold
weather conditions.
Settings
Language
The language desired can be set here. Normally this set-
ting is entered when the air handling unit is started for
the first time and the question CHANGE? automatically
appears on the control panel screen.
However, the language setting can be changed at any
time.
Flow unit
The flow unit desired can be set here. l/s, m
3
/s, m
3
/h.
Min./max. setting
Used for limiting the setting range at user level for set-
points and min. and max. limits of temperature.
Initial setting
The two base settings can be saved and used for setting
the air handling unit for summer conditions and winter
conditions, for instance.
The settings can also be reset to the initial factory set-
tings. However, the preset values for communication and
alarm priority are not reset if the factory settings are rein-
stated.
Controls
Hand-held Micro Terminal/Control Panel
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