4 Instructions for use and maintenance
EN IV. DESCRIPTION AND PRINCIPLE OF WORK
The appliance consists of a body, ange, plastic
control panel, safety return valve.
1. The body consists of a steel reservoir (water
tank) and plastic housing (outer shell) with
thermal insulation placed in-between, and two
pipes with thread G ½“, for cold water supply
(marked with a blue ring) and hot water discharge
(marked with a red ring). The inner reservoir
is made of steel proved against corrosion by a
special glass-ceramic coating.
2. The ange is outtted with: electric heater
and thermostat. The water heaters with glass-
ceramics coating are outtted 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 of
cold water supply interruption. The valve protects
the appliance from pressure increases higher
than the allowed value during heating (! pressure
will increase when temperature increases), by
releasing the excess pressure through the drain
outlet. Water dropping out through the drains
during the warming process is a normal event
that must be taken into consideration when the
boiler is installed.
Attention! 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.
V. 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 ooding,
explosion and/or re. Installation, connection to the main
water and power supply, and putting into operation must be
carried out by certied electricians and technical personnel
certied 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.
1. Mounting
We recommend installation of the device at
close proximity to locations where hot water is
used, in order to reduce heat losses during water
transportation. The selected location must exclude
the possibility of water spray originating from the
showerhead or other water contacts.
The appliance is axed to a wall by means of
mounting brackets attached to the unit's body. Two
hooks are used to x the appliance (min. Ø 4 mm)
rmly on the wall (included in the mounting set).
The bearing plank construction for boilers installed
above / under sinks is universal and allows the
space between hooks to vary between 96 and
114mm. (g.2)
IMPORTANT: The type of boiler designed to
be installed UNDER / ABOVE a sink is
marked on the appliance. Boilers designed for
installation above sinks are assembled in such a
manner that the outlet/inlet pipes are pointed
downwards (to the oor of the premise). Boilers
designed for installation under sinks are
assembled in such a manner that the outlet/inlet
pipes are pointed upwards (to the ceiling of the
premise).
For clear understanding of wall installation
schemes, please refer to g.2 (A above sink and B
under sink).
Attention
! In order to prevent injury to user and/or
third persons in the event of faults in the system for
providing hot water, the appliance must be mounted
in premises outtted with oor hydro insulation (or) 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 outtted with oor
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 water
supply system
Fig.4a - installation scheme above sink
Fig.4b - installation scheme under sink
Where: 1 – input pipe, 2 – safety valve (0.8 MPa),
3 – reduction valve (if the water supply pressure
exceeds 0,6 MPa), 4 – stop valve, 5 – bell-mouth
discharge to the sewer, 6 – hose; 7 - Drain water
tap.
Upon connecting the water heater to the water
supply system, take care of the indicative color
markings /rings/ of the pipes:
BLUE - for cold /in-owing/ water,
RED - for hot /out-owig/ water.
The mounting of the safety return-valve supplied
with the water heater is obligatory. The safety
return-valve must be installed on the cold water
supply pipe, according to the arrow stamped on its
body that indicates the supplied water direction.
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.