Electrical Connections; Remote Links - Daikin EKHH2E200AAV3 Installations- Und Gebrauchsanleitung

6.6

Electrical connections

The appliance is supplied with a power supply cable
(should the latter need to be replaced, use only original
spare parts supplied by the manufacturer or its service
agent). It is powered through a flexible cable and a
socket/plug combination (Fig. 11 and Fig. 12). An
earthed Schuko socket with separate protection is
needed for the connection to the mains power supply.
It is advisable to carry out a check on the
electrical system to verify conformity to the
regulation in force.
Verify that the electrical system can suitably
withstand the water heater's maximum power
consumption values ( refer to data plate), in
terms of the size of the cables and their
conformity to the regulation in force. It is
forbidden to use multiple outlet sockets,
extension cable or adaptor. The earth
connection of the appliance is required. It is
forbidden to use piping from the water, heating
and gas systems for earthing the appliance
Prior to operating the machine, make sure that
the electricity mains voltage conforms to the
value indicated on the appliance's data plate.
The manufacturer of the appliance shall not be
held liable for any damage caused by failure to
earth the system or due to anomalies in the
electric power supply. To disconnect the
appliance from the mains, use a bipolar swith
complying with all applicable CEI-EN
regulations in force ( minimum distance
between contacts 3 mm, switch preferably
equipped with fuse). The appliance must comply
with European and national standards, and
must be protect by a 30 mA differential switch.
Fig. 12 – Equipment plug
Fig. 11 –A Schuko socket

6.6.1 Remote links

The equipment is designed to be connected to other
remote energy systems (photovoltaic and solar thermal
power systems).
The user interface has two digital inputs with the
following functions:
Digital 1: Input from the solar thermal power
system When a free contact is established
.
between terminals 30 and 31 (cable: brown/yellow)
and the water temperature measured by lower
probe is higher than SP8, the heat pump stops and
water is heated up by the solar panels; the heat
pump starts again when the contact is released
Installation and user manual
and time set by C13 is passed or immediately if
the lower probe temperature is lower than SP8.
Digital 2: Input from photovoltaic system.
When a free contact is established between
terminals 31 and 32 (cable: green/white) and the
heat pump reaches the SP5 temperature (default
setting 62°C), the hot water nominal temperature is
raised by 7°C. It is possible to change the SP6
parameter (e.g.: raising the temperature from 62°C
to 70°C) so that, if there is enough PV electrical
energy, the heat drop from 62°C to 70°C is made
by the immersion electric heating element (if SP6
is the same as SP5, the electric heating element
will never activate).
6.6.1.1 Remote link mode
As regards links to digital inputs, the equipment is
provided with an additional 4-core cable that has
already been linked to circuit board of the user interface
(placed inside the equipment Fig. 14). The remote links
to any energy systems must be carried out by a
qualified installer (junction boxes, terminals and
connection cables).
The following illustrations show an example of a remote
link (Fig. 13 and Fig. 13a).
30 31 31 32
30 31 31 32
Fig. 13 – Example of a remote link
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