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

SpECial iNfOrmaTiON
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SpECial iNfOrmaTiON
- The appliance may be used by children over 8
years of age and persons with reduced physical,
sensory or mental capabilities or a lack of ex-
perience 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.
- 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 appliance is supplied with a flexible power
cable without plug. In the case of a permanent
connection, the appliance must be able to be sep-
arated from the power supply by an isolator that
disconnects all poles with at least 3mm contact
separation. Contactors, circuit breakers or fuses
can be used for this. This type of isolator must be
installed in the fixed electrical installation accord-
ing to the regulations. For Australia: Ensure that
the appliance can be separated from the power
supply by a suitable isolator. Contactors, circuit
breakers, fuses or general purpose power plugs
can be used for this. This type of isolator must be
installed according to the electrical installation
regulations.
- Observe the safety measures to prevent contact
with dangerously high contact voltage.
- Observe the fuse protection required for the ap-
pliance (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 the valves at least every 6months to pre-
vent them from becoming blocked, e.g. by limes-
cale deposits.
- Drain the appliance as described in chapter "In-
stallation/ Maintenance and cleaning/ Draining
the cylinder".
- A T&P valve or a cold water expansion control
valve, or both, must be installed. Observe all ap-
plicable national and regional regulations and
instructions.
- The maximum pressure in the cold water supply
line must be at least 20% below the lowest re-
sponse pressure of all installed safety valves. Oth-
erwise a pressure reducing valve is required. If
this is the case, install a pressure reducing valve
in the cold water supply line. The pressure reduc-
ing valve must be set to 540kPa if a safety valve
is installed; otherwise to 700kPa.
- Fit the drain pipe of the safety valve with a con-
stant fall in a room free from the risk of frost.
- Size the drain pipe so that water can drain off un-
impeded when the safety valve is fully opened.
- The safety valve drain aperture must remain open
to atmosphere.