Fronius Ohmpilot Operating Instructions Manual page 96

(10)
(11)
IMPORTANT! Plug & Play - no further settings are required for this application
after successful connection to the inverter.
The Fronius Smart Meter records the current power at the feed-in point and
transfers the data to the inverter. By controlling the Ohmpilot, the inverter adjus-
ts any surplus energy that is available to zero. In detail, this takes place by conti-
nuously adjusting the heating element connected to the Ohmpilot. This means
that the surplus energy is consumed in a continuously variable manner with the
heating element.
Depending on the surplus power, the individual phases are switched on or off and
the remaining power is consumed at L1. As a result, the heating element output
is divided by three.
If no temperature sensor is fitted, an external source (e.g. gas boiler) must be
used to ensure the minimum temperature is met.
As an alternative, the Ohmpilot can ensure the minimum temperature. To do this,
a temperature sensor must be connected so that the Ohmpilot can measure the
temperature. This may result in electricity being sourced from the grid.
The maximum temperature must be set on the heating element thermostat. If
the heating element does not have a thermostat, the Ohmpilot can also carry out
this task as an alternative (see chapter
IMPORTANT! A heating element with a neutral conductor is required.
96
Automatic circuit breaker max. B16A
Ferrite (included in scope of supply)
Optional settings on page 122).