Electrical Connections - Ferroli EGEA 90LT User, Installation, And Maintenance Manual

EGEA
90LT - 120LT

5.6 Electrical connections

The product comes already wired for the mains supply. It is pow-
ered via a flexible cable and a combination plug/socket (fig. 18
and fig. 19). For connection to the mains, a Schuko socket with
ground and separate protection is required.
ATTENTION!: The power supply line to which the
equipment will be connected must be protected
by a suitable differential switch.
The type of differential must be chosen accord-
ing to the type of electrical devices used by the
overall plant.
For the mains connection and the safety devices
(e.g. differential switch), comply with IEC stan-
dard 60364-4-41.
fig. 18 - Schuko socket
5.6.1 Remote connections
The equipment is prearranged to be connected to other remote
energy systems or energy meters (solar thermal, photovoltaic,
Off-Peak)
INPUTS
• Digital 1 (DIG1). NOT USABLE.
(THE TWO WIRES, WHITE AND BROWN, OF THE 6-CORE
CABLE ARE NOT TO BE USED).
• Digital 2 (DIG2). Digital input for photovoltaic. In case of a
photovoltaic system connected to the plant, it can be used
to subtract energy in the form of hot water in times of over-
production. If there is a voltage-free contact, e.g. from the in-
verter, which closes when there is overproduction of energy,
it can be connected to the two green and yellow wires of the
6-core cable supplied with the.equipment.
Set the parameter P23 = 1 to activate the supplement with
photovoltaic.
• Digital 3 (DIG3). Input for Off-Peak. This function, available
only in some countries, allows the equipment to be activated
only when there is a signal coming from outside with prefer-
fig. 19 - Unit plug
cod. 3541T580 - Rev. 00 - 12/2019
ential tariff. If the electric contactor has a voltage-free contact
which closes when the preferential tariff is available, it can be
connected to the two gray and pink wires of the 6-core cable
supplied with the equipment.
Set the parameter P24 = 1 to activate Off-peak in ECO mode
or P24 = 2 for Off-peak in AUTO mode.
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