Page 66 - Advanced Course
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KNX ADVANCED COURSE
3-pipe system
In principle, the 3-pipe system functions in the same way as the 4-pipe system. The most
basic difference is the recirculation of the two transfer media via one pipe. The supply of
the two batteries for heating and cooling is separate as described previously.
Controller
Figure 41: Structure of the 3-pipe FCU version
Home and Building Management Systems KNX Association
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