Fronius Ohmpilot Bedienungsanleitung Seite 77

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Functional The Fronius Smart Meter records the current power at the feed-in point and transfers the
Description data to the Datamanager. By controlling the Ohmpilot, the Datamanager adjusts any sur-
plus energy that is available to zero. In detail, this takes place by continuously adjusting
the heating element connected to the Ohmpilot.
This means that the surplus energy is used up by the heating element in a continuously
variable manner.
The temperature is measured by the Ohmpilot. If the temperature falls below the mini-
mum, then an external source (e.g. gas-fired heating) will be activated until the minimum
temperature is reached again, so that the Ohmpilot only uses surplus energy and does
not draw any energy 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 "Optional Settings" section).
INPUT - grid supply 1x 230 V
Spring balancer 1.5 - 2.5 mm
NOTE! Phase and neutral con-
ductors must not be mixed up.
Residual current-operated circuit
breaker is triggered.
Multifunctional relay output
WARNING! If signal cables are
connected, the individual wires
must be bound together with a
cable tie directly upstream of the
terminal. This prevents any wire
making contact with dangerous
voltages if it works loose.
OUTPUT up to 3 kW variable, max.
13 A resistive load
Spring balancer 1.5 - 2.5 mm
Hot water boiler
NOTE! The heating element is used for switching on and off the legionella
prevention.
NOTE! This function can also be combined with a 3-phase heating element.
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PT1000 temperature sensor
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External source (e.g. gas-fired
heating)
NOTE! The voltage must be at
least 15 V and the current at least
2 mA, so that the relay contacts
do not oxidise.
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Heating element (max. 9 kW)
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Residual-current circuit breaker
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Circuit breaker max. B16A
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Ferrite (included in delivery)
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