General Remarks - Fronius Ohmpilot Bedienungsanleitung

General Remarks

Proper Use / With its "24 hours of sun" vision, Fronius is aiming to offer its customers solutions for
Intended Purpose generating, storing, distributing and using energy in an intelligent and cost efficient man-
ner. The use of surplus energy for hot water preparation constitutes a simple option, with
low investment costs, for storing electricity in the form of heat and using it at a time of the
customer's choosing.
The Fronius Ohmpilot, which carries out precisely this task, is therefore an ideal addition
to the Fronius product portfolio in the area of energy management and a further step
towards "24 hours of sun".
The solution as a whole consists of the following components:
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The Ohmpilot is a separate device that can control the surplus power from the photovol-
taic system in a continuously variable manner, using pulse width modulation, for a phase
between 0 and 100% (or 0 and 3 kW). Moreover, the Ohmpilot has two additional outputs
for switching further phases. As a result, heating elements with an output of between 300
W and 9 kW can be controlled in a continuously variable manner:
A heating element with up to 3 kW output can be controlled in a continuously variable
manner using one phase.
In the case of a heating element with 9 kW output, the surplus power of 0 - 3 kW is
controlled in a continuously variable manner in phase 1. If more power is available, the
Ohmpilot activates phase 2 in addition and phase 1 can again control the surplus in a
continuously variable manner between 3 - 6 kW. If the available power is greater than 6
kW, the Ohmpilot adds phase 3 and phase 1 again controls the surplus between 6 and 9
kW in a continuously variable manner.
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Fronius Symo / Galvo / Eco or Primo inverter (from Fronius Datamanager 2.0
software version 3.8.1-x onwards)
Fronius Smart Meter
Fronius Ohmpilot
Resistive loads (e.g. boiler with heating element)
NOTE! With the Fronius Datamanager Box 2.0, it is also possible to use any
other generation source (CHP unit, non-Fronius inverter, etc.). However, as the
figures for power produced and consumption are not available for these
options, they cannot be displayed in Solarweb.