General; Intended Use - Fronius Ohmpilot Bedienungsanleitung

General

Intended use

With its "24 hours of sun" vision, Fronius is aiming to offer its customers solutions for gen-
erating, storing, distributing and using energy in an intelligent and cost efficient manner.
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 cus-
tomer'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 to-
wards "24 hours of sun".
The solution as a whole consists of the following components:
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NOTE!
Ohmpilot and dynamic power reduction
From software version 3.13.1-x and onwards on the Fronius Datamanager or 1.11.1-x on-
wards on the Hybridmanager, the Ohmpilot can be used together with the dynamic power
reduction of 0-100%.
NOTE!
Use of other generation sources
With the Fronius Datamanager Box 2.0, any other generation source (CHP, third-party in-
verter, etc.) can also be used. However, since information about the power produced and
the consumption is missing, this cannot be displayed in Solarweb.
NOTE!
Due to high heat outputs, the Ohmpilot cannot be operated in emergency power sit-
uations.
It is therefore recommended to install the Ohmpilot outside of the backup power branch. If
the Ohmpilot is installed in the emergency power branch, the existing residual current cir-
cuit breaker of the Ohmpilot must be switched off in the event of a power failure. Alterna-
tively, the heating element measurement must be set to manually. and the minimum
temperature and legionella prevention must be deactivated (see chapter
tings" on page 116 ). The power level required for these functions exceeds the power limits
in emergency power mode. Since these functions are blocked when emergency power
mode starts, these settings cannot be changed during a power failure.
The Ohmpilot is a separate device that can control the surplus power from the PV system
in a continuously variable manner using pulse width modulation for a phase between 0 and
100% (or 0 and 3 kW). In addition, the Ohmpilot has 2 additional outputs for switching fur-
ther phases. This means that heating elements with an output of 300 W to 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 man-
ner using one phase.
Fronius Symo / Galvo / Eco or Primo inverters (from Fronius Datamanager 2.0 on-
wards, 3.8.1-x or higher) or Fronius Symo Hybrid (from Fronius Hybrid Manager
V1.8.1.x onwards)
Fronius Smart Meter
Fronius Ohmpilot
Resistive load (e.g. boiler with heating element)
"Optional set-
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