8
Instructions for use and maintenance
EN
III.
DESCRIPTION AND PRINCIPLE OF WORK
The appliance is designed to operate in regions where the
water hardness is not more than 10°dH. In case that it is
installed in a region where the water is harder it is possible that
limestone precipitation accumulate very fast. This can cause a
specific noise during heating, as well as fast damaging of the
electrical part. For regions with harder water yearly cleaning of
the limestone precipitation in the appliance is recommended,
as well as usage of not more than 2 kW of heating power.
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 safety-return valve.
1.
The body consists of a steel reservoir (water tank)
and housing (outer shell) with thermal insulation placed
in-between made of ecologically clean high density
polyurethane foam, and two pipes with thread G ½ ‘’ 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 form corrosion by a special glass-
ceramics coating
•
Made of stainless steel
The vertical water heaters may be outfitted with a built in
heat exchange unit (serpentine tube). The heat exchenger’s
entrance and exit are located at the sides and represent pipes
with thread G ¾ ‘’.
2.
The flange is outfitted with: electric heater and
thermostat. The water heaters with glass-ceramics coating are
outfitted with a magnesium protector.
The electric heater is used for heating the water in the tank
and is managed by the thermostat, which automatically
maintains the set temperature.
The thermostat has a built in overheating safety device, which
switches of power to the heater when the water temperature
reaches excessive values.
3.
The safety-return valve prevents the appliance’s complete
emptying in the event the cold water supply is interrupted.
The valve protects the appliance from pressure increases
higher than the allowed value during heating (! pressure
increases upon an increase of temperature), via release of
excess pressure during the drainage opening.
The safety-return valve cannot protect the appliance in the
event of water mains pressure in excess of the acceptable
pressure stated for the appliance.
IV.
MOUNTING AND SWITCHING ON
Attention! Improper installation and connection of the
appliance may make it hazardous for the health and life of
consumers. It may cause grievous and permanent consequences,
including but not limited to physical injuries and/or death. Improper
installation and connection of the appliance may also lead to
damage to the consumers’ property /damage and/ or destruction/,
or to that of third persons, as a result of, but not limited to flooding,
explosion and/or fire. Installation, connection to the main water and
power supply, and putting into operation must be carried out by
certified electricians and technical personnel certified in installation
of this category of appliances, who have obtained their license in the
state where the installation and commissioning of the appliance are
carried out, and in compliance with its local legislation.
Notice
: The installation of the unit is at the buyer’s
expense.
1.
Mounting
We recommend the mounting of the device at close proximity
to locations where hot water is used, in order to reduce
heat losses during transportation. In the event the device is
mounted in a bathroom, the selected location must exclude
the possibility of water spray contact from the showerhead or
portable showerhead attachment.
The appliance is affixed to a wall via the mounting brackets
attached to the unit’s body (if the brackets are not attached to
the unit’s body, they must be affixed in place via the provided
bolts). Two hooks are used for suspending the appliance (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 user and third persons in the
event of faults in the system for providing hot water, the
appliance must be mounted in premises outfitted with floor hydro
insulation and plumbing drainage. Don’t place objects, which are
not waterproof under the appliance under any circumstances. In
the event of mounting the appliance in premises not outfitted with
floor hydro insulation, a protective tub with a plumbing drainage
must be placed under the appliance.
Notice
: the set does not include a protective tub and the
user must select the same.
2.
Water heater connection to the pipe network.
Fig. 4: Where: A ≈4m; 1 - Inlet pipe; 2 - Safety valve; 3 - reducing
valve (for water main pressure > 0,6 MPa); 4 - Stop valve; 5 -
Funnel connected to the sewer network; 6 – Hose; 7 - Drain
water tap.
Upon connecting the water heater to the water mains you must
consider the indicative color 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 observance of the direction
arrow stamped on its body, indicating the incoming water’s
direction. Additional stopcocks must not be mounted between
the safety return-valve and the water heater.
Exception
: If the local regulations (norms) require the usage
of another protection valve or mechanism (in accordance with
EN 1487 or EN 1489), then it must be bought additionally.
For mechanisms operating in accordance with EN 1487 the
announced 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 sign. In these cases the safety valve which the
appliance is supplied with should not be used.
The presence of other /old/ safety return-valves may lead
to a breakdown of your appliance and they must be
removed.
Other type of stopping armature is not allowed between
the protection return valve (the protective device) and the
appliance.
The attaching of the safety return-valve to threads longer than
10 mm is not allowed, otherwise this may damage the valve
and poses danger for your appliance.
With appliances for vertical assembly, the safety valve has
to be connected to the ingoing pipe with the safety plastic
panel of the appliance being taken off.
The safety valve and the pipe between the valve and the water
heater must be protected from freezing. During hose draining
- its free end must be always open to the atmosphere (not to be
immersed). Make sure that the hose is also protected from freezing.
Содержание GCH 503520 B12 TSR
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