www.dimplex.de 6721873500 (2023/07) EN-3
DEE 1521, DEE 2127 English
1 Notes on safe operation
1.1 General safety instructions
1.1.1 General notes
Read this manual prior to use and keep it safe.
Observe the safety instructions and warnings.
Comply with national and regional regulations,
technical rules and guidelines.
Document any work carried out.
1.1.2 Intended use
The device has been developed to heat up potable
water. The device is designed for domestic use only.
If the use is identical to domestic use, the device can
also be used in non-domestic environments, e.g. in of-
fices.
Any other use is not intended.
Mount and use the device as described in the text
and illustrations.
This device is intended to be used at altitudes up
to 2,000 m above sea level.
The device must only be installed in rooms pro-
tected from frost.
Only install the device in closed systems.
Observe the country specific regulations, guide-
lines and standards applicable to potable water.
In the event of faults or water leaking from
the device, immediately disconnect it from
the power supply and shut the cold water
inlet.
1.1.3 Installation
The installation instructions are designed for profes-
sionals in water installations, heating and electrical
engineering. The instructions in all system-relevant
manuals must be followed. Failure to observe the in-
structions can leads to property damage or injury and
even loss of life.
Read the installation instructions prior to installa-
tion (see chapter 4.).
You must comply with the legal regulations appli-
cable in the country of installation as well as the
regulations of the local energy and water supply
companies.
Install the device in cold water and potable water
circuits (closed circuits).
Only a licensed professional may perform the in-
stallation.
Always switch off the power supply before open-
ing the device.
To avoid dangerous situations, repairs and main-
tenance may only be performed by licensed pro-
fessionals.
The device is suitable for connection to plastic
pipes tested by the DVGW (German Technical and
Scientific Association for Gas and Water).
The device belongs to protection class 1 and must
be connected to the protective earth.
The device must be permanently connected to
the power supply.
The conductor cross section must be adapted to
the power to be installed (see chapter 9.).
The earthed pipes of the device can make it appear as
though the device is earthed. The device must be
connected to the protective earth.
An all-pole circuit breaker must be provided to
meet applicable safety standards. The contact
opening must be at least 3 mm.
Ensure that the maximum and minimum inlet
water pressure matches the value specified by the
manufacturer (see chapter 9.).
Taps and fittings must be approved for use with
equipment that operates in a closed circuit (under
pressure).
The inlet temperature must be no more than 55 °C.
If the device receives heated water, e.g. via
a solar system, the selected or maximum
permissible temperature may be exceeded.
In this case, place a thermostat valve up-
stream of the device to limit the temperature.
