Installer manual ecoGEO
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5.9. External auxiliary equipment
This is used to control the activation of the auxiliary equipment integrated in the DHW heating buffer storage tanks via outputs to
relays. They are also used to control activation of the all / nothing external auxiliary boiler. If modulating boilers are installed, it is
also used to control the temperature downstream from the boiler, so the heat pump and the boiler can function simultaneously.
The connection terminals of the SG3 outlet unit are used to manage the auxiliary boilers, so this one cannot be used.
Auxiliary heating buffer storage tank equipment
Activation 230Vac / 1A maximum
DHW inter-storage tank auxiliary equipment
Activation 230Vac / 2A maximum
Activation 230Vac / 2A maximum
Table 1.5. Auxiliary equipment connection terminals.
5.10. Aerothermal or hybrid brine systems
These are used to control activation of the aerothermal (ecoGEO AU12) and geothermal brine systems. They also generate a
regulation signal for the variable speed fan of the ecoGEO AU12 unit.
The connection terminals of the SG2 outlet unit are used to manage the aerothermal brine units, so this one cannot be used.
Aerothermal collector (ecoGEO AU12)
Defrost activation
230Vac / 2A maximum
Fan activation
230Vac / 2A maximum
Activation 230Vac / 2A
maximum
Table 1.6. Connection terminals for aerothermal or hybrid brine systems.
5.11. Alarm signal
If the heat pump cannot start up the compressor because of an active alarm, the heat pump will generate an alarm signal.
Activation 230Vac / 2A
maximum
Table 1.7. Connection terminals for aerothermal or hybrid brine systems.