Alarm Signal; Remote Control By Digital Inputs - GeoSmart NETZERO BW Manuel D'installation

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.
Description
Alarm signal
Table 5.8. Connection terminals for aerothermal or hybrid source systems.

5.12. Remote control by digital inputs

The heat pump is equipped with digital inputs for remote control of production services. EVU signal and SG mode control.
Description
Control of electrical consumption (EVU)
SG signal 1
SG signal 2
WINTER / SUMMER program selection
Enable / disable DHW production
Pool production
Table 5.9. Connection terminals for digital inputs that control service production EVU and SG modes.
▪
The activation of SG modes is incompatible with EVU and only allows configurate one digital input for
remote Winter / Summer program selection or DHW production.
NOTE
Heat pump start-up control (EVU signal)
Enables / disables energy production with both the compressor and the auxiliary equipment. In any event, circulator pumps, valves
and other components can be activated to consume energy from the storage systems.
SMART GRID
Enables / disables SG states on the heat pump. Depending on the value of the digital inputs, we distinguish four operating states SG:
SG1 [0 0] (Normal status): The heat pump operates normally according to their configuration.
SG2 [0 1] (Reduced tariff): We are in a reduced tariff period, so we will take advantage of the lower price of electricity to change heat
pump setpoints and produce more heat and cold.
SG3 [1 0] (Locked status): The heat pump is on, but limits the high consumptions, therefore, it sends a compressor and heater lock
signal.
SG4 [1 1] (Forced status): The heat pump will force the maximum possible consumption in the installation to help balance the grid.
These external signals can be sent by the electric company itself to try to keep the distribution network balanced at any time.
Remote WINTER / SUMMER program selection
Used for remote selection of the heat pump operation program.
DHW production
Enables / disables the DHW production function. If the function is enabled, DHW production is governed by the DHW configuration
in the heat pump controller.
Pool production
Activates / deactivates pool production demand. If the signal is requested, pool production is governed by the pool configuration in
the heat pump controller.
GEOSMART ENERGY
Signal
Activation 230Vac / 2A
Relay digital output
maximum
Signal Type
Digital input Voltage-free (0V)
Digital input Voltage-free (0V)
Digital input Voltage-free (0V)
Digital input Voltage-free (0V)
Digital input Voltage-free (0V)
Digital input Voltage-free (0V)
30
Installer manual NETZERO
Type Connector
DO9
Connector
Configurable (DI1/DI2/DI3)
Configurable (DI1/DI2/DI3)
Configurable (DI1/DI2/DI3)
Configurable (DI1/DI2/DI3)
Configurable (DI1/DI2/DI3)
DI4