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User Manual for HYD 3-6 kw ES Hybrid Inverter - Rev. 1.1 del 13/06/2019
Identificazione: MD-AL-GI-00
Rev. 4.0 del 31.01.18 - Applicazione: GID
If the HYD-Es inverter is faulty, manually move the switch to position 2. The grid will supply power to
the critical load.
Note:
If the system is equipped with a production metre, take into account that the energy for the critical load
is drawn before the meter and therefore this energy, even if produced by photovoltaic panels, is not counted as
energy produced. If necessary, the system designer can use appropriate external contactors to ensure that the
energy for the critical load is drawn downstream of the production meter during normal grid operation and
that it only changes over to the EPS output of the inverter in the event of a power failure.
Figure 16 – Change-over switch connections