STIEBEL ELTRON WWK 302 H - Special Information; General Safety and Handling Precautions

ENGLISH
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SPECIAL INFORMATION
SPECIAL INFORMATION
- The appliance may be used by children aged 8
and older and persons with reduced physical,
sensory or mental capabilities or a lack of ex-
perience and know-how, provided that they are
supervised or they have been instructed on how
to use the appliance safely and have understood
the resulting risks. Children must never play with
the appliance. Children must never clean the ap-
pliance or perform user maintenance unless they
are supervised.
- Observe all applicable national and regional reg-
ulations and instructions.
- Observe the minimum clearances (see chap-
ter "Installation/ Preparations/ Siting the
appliance").
- Observe the requirements concerning the instal-
lation room (see "Specification/ Data table").
- The connection to the power supply must be
in the form of a permanent connection. Ensure
the appliance can be separated from the power
supply by an isolator that disconnects all poles
with at least 3mm contact separation. Contac-
tors, circuit breakers or fuses can be used for
this. This type of isolator must be installed in the
fixed electrical installation according to the wiring
rules. For Australia: Ensure that the appliance can
be separated from the power supply by a suitable
isolator. Contactors, circuit breakers or fuses can
be used for this. This type of isolator must be in-
stalled in accordance with the wiring rules.
- Observe the safety measures to prevent contact
with dangerous 'live' currents.
- Observe the MCB/fuse protection required for
the appliance (see chapter "Specification/ Data
table").
- If the power cable is faulty, replace it with a new
one. The power cable must only be replaced (for
example if damaged) by a qualified contractor.
- The appliance is pressurised. During the heat-up
process, expansion water will drip from the safety
valve.
- Activate any valves at least once every 6months
to prevent blockages, e.g. by limescale deposits.
- Drain the appliance as described in "Installa-
tion/ Maintenance and cleaning/ Draining the
cylinder".
- A T&P valve or a safety valve (cold water expan-
sion control valve) must be installed. Observe all
applicable national and regional regulations and
instructions.
- The maximum pressure in the cold water supply
line must be at least 20% below the response
pressure of the lowest pressure rated valve in-
stalled, otherwise a pressure reduction valve will
be required. If this is the case, install a pressure
reduction valve in the cold water feed. The pres-
sure reducing valve must be set to 440kPa if a
safety valve is installed; otherwise to 550kPa.
- Fit the discharge pipe of the safety valve with
a constant downward slope and in a room free
from the risk of frost.
- Size the drain so that water can drain off unim-
peded when the safety valve is fully opened.
- The safety valve discharge aperture must remain
open to atmosphere.