User Manual

5
1 Introduction to Economizer tx2
The Economizer tx2 application offers energy-optimized air conditioning plant
control by conditioning the air supplied to the rooms using the most favorable type
of energy. Our patented procedure continuously calculates air conditioning costs,
allowing for targeted selection of the most favorable method. Economizer tx2
optimizes the room state within a setpoint field resulting in optimum setpoint
settings for ventilation while at the same time optimizing energy recovery resulting
in the best possible air aftertreatment. Optimization can be based on energy, costs,
or CO
2
. As a result, Economizer tx2 helps lower energy costs and offers an
excellent basis for highly efficient operation. In fact, up to 40% energy can be
saved compared to conventional air conditioning. At the same time, comfort control
ensures that limit values are maintained for temperature and humidity. The
innovative application is modular in design and includes a number of plant variants
to control air handling units.
Definition of terms
ERC: Energy recovery
Economizer tx2
2-dimensional optimization
Absolute humidity
Temperature
Figure 1-1
Basic diagram for an air conditioning plant with Economizer tx2