Electrical Connections For Aerothermal Brine (Diagrams A And B); Electrical Connections For Hybrid Geothermal-Aerothermal Brine (Diagram C) - ECOFOREST AU12 Installations-Und Technische

4.2. Electrical connections for aerothermal brine (Diagrams A and B)

If the brine system is purely aerothermal and only uses AU12 units (See Diagrams A and B in Figure 3.1), the following electrical
connections should be made:
AU12
NTC
Figure 4.2.Electrical connections for aerothermal brine (Diagrams A and B).

4.3. Electrical connections for hybrid geothermal-aerothermal brine (Diagram C)

If the brine system is hybrid geothermal-aerothermal (See Diagram C in la Figure 3.1), the following electrical connections should be
made:
AU12
NTC
Figure 4.3. Electrical connections for hybrid geothermal-aerothermal brine (Diagram C).
Note: In installations where it is desired to avoid the consumption of the ventilator, when stopped by 0Vdc signal, the power supply
can be interrupted with the signal DO16, Lon. Should there be other elements connected to the same terminal, such as 3-way
valves, a relay must be installed to avoid conflicts due to voltage returns.
AU12 Installation Manual and Technical Service
ecoGEO B/C
230 V / 1/N/PE~
ecoGEO B/C
32
PE
N
Lin
Lon
Loff
GND
24Vac
Vout
Com
Sgn
PE
N
L
PE
N
Lin
Lon
Loff
PE
N
Lin
Lon
Loff
GND
24Vac
Vout
Com
Sgn
PE
N
L