User Manual

Room automation
Desigo room automation
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CM110664en_07 289 | 353
Application
dehumidify
– Override function allows a technician or balancer to
override the VAV applications for balancing and
commissioning
● 1x Demand controlled pressure control by either:
– Supply VAV position evaluation helps to optimize fan
speed by averaging the 10 highest supply damper
positions and providing this information to the
central plant
– Extract VAV position evaluation helps to optimize fan
speed by averaging the 10 highest extract damper
positions and providing this information to the
central plant.
– Supply VAV flow deviation helps to optimize the fan
speed by calculating the airflow deviation through
the supply VAV dampers
– Extract VAV flow deviation helps to optimize the fan
speed by calculating the airflow deviation through
the extract VAV dampers
– Supply VAV flow saturation evaluation (air flow
control loop cannot get enough air to reach setpoint)
evaluates the supply VAV saturation signals from the
rooms to optimize the fan speed
– Extract VAV flow saturation evaluation (air flow
control loop cannot get enough air to reach setpoint)
evaluates the extract VAV saturation signals from
the rooms to optimize the fan speed
– Supply VAV setpoint evaluation with the summed
setpoints of the supply VAV the fan's speed can be
set for an optimized fan speed when VAV positions
and VAV flow rates are not known
– Extract VAV setpoint evaluation with the summed
setpoints of the extract VAV the fan's speed can be
set for an optimized fan speed when VAV positions
and VAV flow rates are not known
Loadable central functions (continued)
Application
Central
functions
● 2x VAV supply fire emergency group with off, extract,
pressurization or purge
● 1x Central weather station with:
– Outside temperature
– Outside brightness
– Outside solar radiation
– Outside wind speed
– Outside precipitation
● 2x Light manual central operation group
● 1x Light central control group for emergency situations
● 4x Shading central facade functions with:
– Central weather station brightness calculation
supports facade automatic function
– Glare protection function calculates the glare
protection state by central weather station for all
facade