TESY GCV50L Manuel D'utilisation page 14

IV. DESCRIPTION AND PRINCIPLE OF OPERATION
EN
The appliance consists of a body, flange at the bottom
side (for water heaters intended for vertical mounting)
or at the sides (for water heaters intended for horizontal
mounting), protective plastic panel and a safety-return
valve.
The body consists of a steel reservoir (water tank)
1.
and a housing (outer shell) with thermal insulation
placed in-between made of ecologically clean high
density polyurethane, and two pipes with thread
G½'' for cold water supply (marked by a blue ring)
and hot water outlet pipe (marked by a red ring).
The inner tank may be of two types depending on the
model:
•
Made of steel protected from corrosion by a special
glass-ceramic or enamel coating
•
Made of stainless steel
The vertical water heaters may be equipped with a
built-in heat exchanger (boiler tube). The boiler tube's
entrance and exit are located at the sides and represent
pipes with thread G ¾".
An electric heater is installed to the flange. Water
2.
heaters with glass-ceramic coating are equipped
with a magnesium protector as well.
The electric heater is used for heating the water in
the tank and is operated by the thermostat, which
automatically maintains the set temperature. The
device has a built-in overheating safety device (thermal
circuit breaker), which switches off the heater from the
electrical mains when the water temperature reaches
excessive values.
The safety-return valve prevents the appliance's
3.
complete emptying if the cold water supply stops
from the water mains. The valve protects the
appliance from pressure increases higher than the
allowed value during heating mode (an increase of
temperature causes water expansion and therefore
pressure increase) by releasing the excess pressure
through the drainage opening.
The safety-return valve cannot protect the
appliance in the event of water mains pressure
that is higher than the pressure stated for the
appliance..
V. MOUNTING AND SWITCHING ON
Qualified technicians must perform all technical
and electrical assembly works. A qualified
technician is a person who has the respective
competence according the regulations of the
country in question.
Mounting
1.
We recommend the device to be mounted in close proximity
to locations where hot water is used in order to reduce heat
losses during transportation in the pipelines. If the device
is mounted in a bathroom, it should be in such a place so
as not to be poured with water from the showerhead or a
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portable showerhead attachment.
For wall-mounting, the appliance must be affixed to a
wall by means of the mounting brackets attached to the
unit's body. Wall-mounting is carried out by means of two
hooks (min. Ø 10 mm) set firmly in the wall (not included
in the mounting set). The mounting bracket's construction
designed for water heaters intended for vertical mounting is
universal and allows a distance between the hooks of 220 to
310 mm (fig. 1a).
In order to prevent injury to the user and/or third
persons in the event of faults in the system for hot
water supply, the appliance must be installed in
premises with floor hydro insulation and drainage
to the sewerage. Under no circumstances should
you place objects which are not waterproof under
the appliance. If the appliance is installed in
premises without floor hydro insulation, a
protective tub with drainage to the sewerage must
be in place under the appliance.
Note: The set does not include a protective tub
and it should be chosen/purchased by the user.
Connecting the water heater to the water supply
2.
system
Fig. 4: a – for vertical installation
Where: 1 - Inlet pipe; 2 - safety valve; 3 - reducing valve (for
pressure in the water mains higher than 0.6 MPa); 4 - stop
valve; 5 - funnel connected to the sewerage; 6 – hose; 7 –
drain water tap.
Upon connecting the water heater to the water mains
you must consider the indicative colour markings (rings)
affixed to the pipes: blue for cold (incoming) water, red for
hot (outgoing) water.
The mounting of the safety return-valve supplied with the
water heater is obligatory. The safety return-valve must
be mounted on the cold water supply pipe, in accordance
with the direction of the arrow stamped on its body,
indicating the direction of the incoming water.
Exception: If the local regulations (norms) require
the use of another protection valve or device
(which conforms to EN 1487 or EN 1489), then it must be
purchased additionally. For device operating in
accordance with EN 1487 the declared maximum
operational pressure must be no more than 0.7 MPa. For
other protection valves, the pressure at which they are
calibrated must be 0.1 MPa lower than the one marked
on the appliance's plate. In these cases the safety valve
which the appliance is supplied with should not be used.
Other type of stopping armature is not allowed
between the protection return valve (the protective
device) and the appliance.
The presence of other (old) safety return-valves
may lead to a breakdown of your appliance and
they must be removed.