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Fig. 6
Connecting to the power grid
All storage water heaters of the MXM WiFi
EEC series are designed to connect to an
electrical network with a single-phase voltage
of 230 V. Before connecting, make sure that
the power supply at the place of connection
complies with the specifications on the rating
plate of the appliance. Observe the applica-
ble electrical safety regulations when installing
the heater. When installing the water heater in
the bathroom or toilet, take into account the
restrictions related to the existence of prohib-
ited and protective volumes (spaces).
Prohibited volume is the space limited by
the tangential and vertical planes in relation
to the outer edges of the bathtub, toilet or
shower unit and the plane above them, or
above the floor if the plumbing is mounted on
the floor, at a height of 2.25 m.
A protective volume is a space whose
enclosing horizontal planes coincide with the
planes of the forbidden volume, and whose
vertical planes are 1 meter from the corre-
sponding planes of the forbidden volume.
Calculated data for copper
Selection of cable (wire) cross-section by
power and length in copper, U = 230 V, one
phase.
R, kW 1 2 3 3,5 4 6 8
I, A 4,5 9,1 13,6 15,9 18,2 27,3 36,4
Cross-section
of current-
carrying core,
mm²
1 1 1,5 2,5 2,5 4 6
Maximum
permissible
cable
length at
specified
cross-section,
m
34,6 17,3 17,3 24,7 21,6 23 27
Operation
Filling with water
In order to fill the tank completely with water,
it is necessary:
• open the hot water tap on the faucet;
• open the water supply valve to the water
heater;
• wait for the water to come out of the fau-
cet;
• close the hot water tap on the faucet and
make sure there are no leaks.
If water flows from the hot water tap — the
tank is full of water. Only then can the tank be
connected to the power grid.
In the case of uncertainty as to whether there
is water in the water heater, do not connect it
to the mains.
Connecting to the power grid
Watch out!
Connect to the mains only after lling with
water (the opposite may cause burning of
the heating element and damage to the
device).
Plug the water heater into an outlet, then the
on the panel lights. This indicates that the
water heater is switched on and is supplied
with power. Set the desired water heating
level from low to high using the heating tem-
perature control. Heating water is switched
off automatically when the set temperature is
reached and is switched on to reheat auto-
matically. When the water temperature reach-
es the set temperature, the heating will stop.
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