User Manual

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3.2 Principles of the tx2 Economizer strategy
Figure 3-1
Economizer tx2 principle. – Comfort area control (tx2 control) and energy recovery control (tx2 ERC
strategy) together contribute to optimizing air conditioning plant operating costs through inter-
harmonization and coupling.
The Economizer tx2 corresponds to h,x-controlled temperature and humidity
control. The tx2-strategy controls the heat recovery system so that the air handling
process is cost-optimized considering predominant air states and specific costs of
air handling aggregates.
The principle functions are explained in greater detail below.