OpEraTiON
Safety
www.stiebel-eltron.com WWK222-302 H | 5
2.2 General safety instructions
The appliance should only be operated once it is fully installed
and all safety equipment has been fitted.
!
WARNING Injury
The appliance may be used by children over 8 years of
age and persons with reduced physical, sensory or men-
tal capabilities or a lack of experience and expertise,
provided that they are supervised or they have been
instructed on how to use the appliance safely and have
understood the potential risks. Children must never play
with the appliance. Cleaning and user maintenance must
not be carried out by children without supervision.
WARNING Electrocution
Contact with live components presents a threat to life.
Damage to the cable insulation or to individual compo-
nents may result in a risk to life.
If there is damage to the insulation, switch off the
power supply and arrange a repair.
All work on the electrical installation must be carried
out by a qualified contractor.
WARNING Burns
The water in the DHW cylinder can be heated to temper-
atures in excess of 60°C. There is a risk of scalding at
outlet temperatures in excess of 43°C.
Caution must be exercised when coming into contact
with the outflowing water.
WARNING Burns
Touching hot components can lead to burns.
When working on hot components, always wear
protective working clothing and safety gloves.
The pipework connected to the DHW outlet of the appli-
ance can reach temperatures in excess of 60°C.
WARNING BURNS
The appliance is filled with refrigerant at the factory.
In the event of refrigerant escaping due to a leak, avoid
coming into contact with the refrigerant or inhaling the
released vapours. Ventilate the rooms affected.
WARNING Electrocution
Never operate the appliance when the casing is open or
without a cover.
!
CAUTION Injury
If objects are left on the appliance, noise emissions may
increase due to resulting vibrations, and the objects
could fall and cause injury.
Never place any objects on top of the appliance.
!
Material losses
At the factory, the appliance is fitted with rechargeable
batteries that ensure the power supply to the impressed
current anode in the case of a power failure.
In order for the impressed current anode to protect the
DHW cylinder in the appliance against corrosion, the ap-
pliance must not be disconnected from the power supply
for more than 16hours if the DHW cylinder is filled with
water and the impressed current anode is not separately
connected to a continuous power supply.
If regular interruptions to the power supply are not an-
ticipated, the batteries will not require any maintenance.
Replace the batteries for the impressed current anode
every three years in the following cases:
- The impressed current anode is not separately con-
nected to a continuous power supply and a switch-
ing contact regularly interrupts the power supply to
the appliance.
- The security of supply is inadequate.
Failure to observe this point puts the appliance at risk
of damage.
Never use batteries that cannot be charged. Only re-
chargeable nickel metal hydride batteries (NiMH) are
permissible.
Batteries may be damaged in the appliance. Without a
power supply, the impressed current anode and the cyl-
inder would not be protected against corrosion.
!
Material losses
Ensure that the appliance, water pipes and safety valves
are free from the risk of frost. If you disconnect the ap-
pliance from the power supply, it is no longer protected
against frost.
!
Material losses
Never cover the appliance. Covering the air intake or air
discharge leads to a reduced air supply. If the air supply
is restricted, the operational reliability of the appliance
cannot be guaranteed.
!
Material losses
Only operate the appliance when the DHW cylinder has
been filled. The appliance is equipped with boil-dry pro-
tection to prevent operation if the DHW cylinder is not
completely full of water.
!
Material losses
Heating liquids other than potable water is not permitted.
!
Material losses
Keep the appliance installation site free from air contam-
inated with oil or salt (chloride) and corrosive or explo-
sive substances. Avoid contaminating the installation site
with dust, hairspray or substances containing chlorine
or ammonia.
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