10
EN
IMPORTANT!
Be sure to fill the water heater with
water before connecting it to the electrical sup-
ply! Failure to comply with the electrical connec-
tion conditions affects the safety of the appliance,
whereby the water heater must not be operated.
IMPORTANT!
Observe the maximum permissible
pressure (see chapter: Technical data).
Further important notes
• The device is under pressure. Expansion water
may drip out of the pressure relief valve during
heating.
• Operate the pressure relief valve regularly to
prevent it from getting stuck, e.g. B. to prevent
limescale deposits.
• Install a type-tested pressure relief valve in the
cold water supply line. Note that depending
on the pressure of the supply line, a pressure
reducer may also be required.
• Attach a drain line to the opening of the relief
valve, with an even slope to the drain.
• Dimension the drain line so that the water can
drain unhindered when the overpressure valve
is fully open.
• The opening of the pressure relief valve must
not be blocked.
• This device contains rechargeable batteries
which are not replaceable. However, their de-
fect does not limit the basic functionality.
• The device may be operated up to an altitude of
4000 m above sea level.
• The device owner is responsible for preventing
possible damage due to lightning strikes and
for proper installation of the PV modules with
lightning protection.
Technical data
This water heater can provide hot water from the
mains water supply or other pressure-operated
water supply for several consumers at the same
time. The water used for heating must meet the
requirements of the normative documents for ser-
vice water, in particular: chloride content up to 250
mg/l; electrical conductivity more than 100 µS/cm,
pH value 6.5 - 8 for hot water tanks with enamelled
water tank. The thermal insulation consists of CFC-
free polyurethane foam.
The maximum electrical output of the hot water sto-
rage tank is 550 W. The actual output of the heating
elements depends on both the connected photovol-
taic output and the intensity of the sun's radiation.
The water is heated to a maximum of 65 °C to ensure
protection against scalding. Detailed information
can be found on the data sheet or the nameplate.
The hot water storage tanks are equipped with a
combined non-return and pressure relief valve,
which prevents the water from being over-pressu-
rized while the device is in operation. The water
tanks are made of steel with a high-strength enamel
coating and additional cathodic protection with a
magnesium anode.
Assembly
Always install the water heater lying down, in a dry
environment. The device is intended for fixed floor
assembly as well as for the wall. Make sure that the
assembly surface is sufficiently stable to withstand
forces that act on the boiler or its mounting system
when driving. When choosing a suitable substrate
for the hot water storage tank, the following must
be taken into account:
• Type and material
• Dimensions of the device,
• Type of fastening
• Location of fasteners for floor mounting
• Arrangement of water and electricity lines
• Degree of protection against water splashes
The installation site must comply with the requi-
rements of the water and electrical installation.
Sufficient space for the water connections must be
provided during installation.
The boiler is bolted to the floor or the wall using the
attached mounting rails. Four screws are used for
this. The type, length and diameter of the screws
