Electrical System; Electrical Panel Of The Ecogeo Au12 Unit - ECOFOREST AU12 Manuel D'installation


Operation only with the aerothermal collector. For high outdoor air temperatures, heat absorption in the aerothermal
collector is more efficient than in the geothermal collector. Therefore, the 3-way valves in the heat pump heat are
positioned to bypass the geothermal collector and for the flow to pass through the aerothermal collector exclusively.

Hybrid operation. For intermediate outdoor air temperatures, the heat pump can absorb heat efficiently both in the
aerothermal collector and the geothermal collector. Therefore, the 3-way valves in the heat pump heat are positioned so
the antifreeze mixture flows through the aerothermal collector and then through the geothermal collector.

Operation only with the geothermal collector. For low outdoor air temperatures, heat absorption in the geothermal
collector is more efficient than in the aerothermal collector. Therefore, the 3-way valves in the heat pump are positioned
so they bypass the aerothermal collector and pass through the geothermal collector, exclusively.

4. Electrical system


Before performing any operation on the electrical panel, disconnect the power supply.
DANGER!
All the electrical connections needed for proper operation of the AU12 units must be made from the electrical panel of the ecoGEO
heat pumps. The heat pump control panel is fully capable of managing all the diagrams represented in Figure 3.1.

4.1. Electrical panel of the ecoGEO AU12 unit.

An exploded view of the electrical connections panel of the ecoGEO AU12 unit is shown below.
No.
1 Electrical control connections
2 Electrical power connections
1 2
Figure 4.1. Electrical panel of the AU12 unit.
Description
Table 4.1.Components of the electrical panel of the AU12 unit.
AU12 Installation Manual and Technical Service
4
No.
3 Cable grommet with clamp
4 Panel opening and closing screws
30
4
3
Description