Do you have an existing ventilation and air conditioning system that conforms to functional requirements but is no longer state of the art in terms of energy?

Or would you simply like to find out how much you could save if you modernise your system?

Your refrigeration system is getting on in years, and the available cooling capacity has decreased noticeably?

All of these are good reasons to choose our etaXChange programme.


We offer the following:

  • Energetic inspection
  • Filter management
  • Replacement of the control panel and field devices
  • Reconstruction of the integrated refrigeration system
  • Upgrading of individual components
  • Complete gutting of the unit and reconstruction
  • Hygiene inspection

HANSA etaTech

etaTecH encompasses our strategies and technologies for realizing improvements in the efficiency (Greek: η, eta) and thus the efficiency of air handling units and systems.