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Technical Description
Operating Modes
There are a variety of functions built into the CONDUCTOR:
• MAN, manual mode.
• AUTO, automatic mode.
• ECON, energy-saving mode.
• Stand-by mode.
• EMERG, emergency mode.
MAN, Manual operating mode.
Whenever the CONDUCTOR registers occupancy in the room in response
to signals from a presence detector, the user can regulate the temperature
and airflow rate by entering settings in the room unit. When the user enters
a new desired setting, the controller switches over to the manual operating
mode (MAN).
AUTO, Automatic operating mode.
When the CONDUCTOR no longer registers occupancy in the room, the
controller automatically decreases the supply air flow to the low airflow
setting and the system automatically returns to the AUTO mode.
The controller also switches automatically to the AUTO mode after a
predefined number of minutes after the most recent change, manually
entered on the room unit.
When the controller is set to the automatic mode, the valve actuators for
chilled water and hot water respectively and the supply air damper and
extract air damper respectively are adjusted in response to occupancy in the
room and the level of carbon dioxide as well as the status of the window
contact and the condensation sensor.
The automatic control system controls the airflow, cooling and heating until
the user manually enters a new airflow or temperature setting.
ECON, energy-saving mode.
When the energy-saving function is enabled, the system switches
automatically to the ECON energy-saving mode, when no occupancy has
been registered for a predefined number of minutes. The system returns to
the AUTO mode when occupancy is registered again.
In the energy-save mode, the valve actuator is controlled for chilled water
and hot water respectively according to the status on other sensors in the
room, but with a greater permissible difference between actual value and
setpoint than in the AUTO mode.
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