User Manual

Comfort conditions
Feeling comfortable
Coordination
Control
Energy saving functions
Cost-efficient energy usage
Control
The comfort zone is
selected with the help
of the graphic user inter-
face of the Desigo CC
management platform
and is clearly presented
on the h,x chart.
tx2 Economizer: energy-optimized
control of air conditioning plants
Use: air conditioning
Desigo tx2 Economizer controls air conditioning plants with a focus
on energy and CO
2
optimization. The air supplied to the rooms is
always conditioned by utilizing the most favorably priced form of
energy. Using the patented process, the air conditioning costs are
continually calculated to be able to choose the cheapest air handling
method. If, for example, a plant calls for cooling in the summer, the
application selects the most suitable way of cooling, depending on
energy costs: For example cooling coil, air humidifier or a combination
of both. The tx2 Economizer ensures the required comfort level
and
delivers energy savings of up to 50 percent compared with conven
tional
air conditioning systems.
– Targeted usage of the most favorably priced form of energy and
of the associated heating or cooling method
– Cost savings based on a selectable setpoint zone for temperature
and humidity
Comfort conditions
Feeling comfortable
Model
predictive heating
controller
– Outside temperature
– Room temperature
– Flow temperature
– User inputs
...
...
Outside
temperature
forecast
Graphic Desigo CC user
interface for display and
readjustment of setpoints,
and for optimum plant
operation.
Predictive heating controller:
saving energy and costs
Use: heating
The innovative, patented predictive heating controller combines
the following elements: outside temperature forecast (based
on previously recorded outside temperature data or weather fore-
casts), adaptation of heating curve and building model parameters,
model-related forecast of room temperature, start/stop function,
plus optimization of flow temperature setpoint. Due to complete
adaptation of the building model parameters, commissioning and
maintenance costs are cut and energy savings are reached. Excellent
system management improves both the transition from boost heating
to comfort mode and the behavior in case of undersized heating
output.
– Shorter pump running times and lower energy costs
– Upgrading with no need for installing extra plant components
–  Inherently correct behavior in different heating systems and
with different types of usage