TECHNICAL DESCRIPTION
The water heater is intended for domestic purposes in households,
and can provide hot water from the common water main system
simultaneously for a few consumers
–
kitchen, bathroom and etc.
The heated water should be correspond to the normative
documents for domestic water and, in particular: its composition of
chlorides should be less than 250 mg/l; the electrical conductivity
should be more than 100 µS/cm and pH=6,5-8 for the water
heaters with enameled water tanks; the electrical conductivity
should be less than 200 µS/cm for the water heaters with chrome-
nickel steel water tanks. The water pressure in the water supply
system should be higher than 0.1 MPa and lower than 0.5 MPa. If
the water pressure is higher than 0.5 MPa
–
please refer to the
instructions in the section for connection to the water supply
network. Special water heater models are in production (for
regions where local regulations require) with design to work in
plumbing pressure up to 1 MPa.
The appliances water containers of the appliances are properly
protected against corrosion by using high quality enameled
coating, or are made of high-range alloy chrome-nickel (corrosion
resistant) steel. Water tanks with enameled coating are equipped
with built-in anodes made of special alloy providing additional
protection.
The outer casing of the appliances is made of epoxy-polymer
coverage and the heat insulation is made of CFC-free
polyurethane foam.
Schematic views of the basic models with their modifications are
shown in Fig. 1- , and their engineering characteristics
–
in Table 1.
2
Please refer to all figures and tables in the manual.
The water heater models and their modifications are marked with a
number with additional letter as follow:
The base model is marked only with a number
–
a water
heater with an enameled water container. Models
72410,
72411, 72412, 72425, 72426, 72429
and their
modifications are only with electronic control
.
"K"
–
only in vertical water heaters with mechanical control
–
sign about design.
”
A
” –
in the enameled water tank is built-in an anode tester
indicating the level of corrosion protection and anode
wear. The horizontal water heaters with enameled
containers are produced only with anode testers.
"
Н
"
–
the water container of the appliance is made of
chrome-nickel steel alloy.
"T" - the water container is equipped with built-in heat
exchanger for water heating from an alternative heat
source (local water heating, solar collector and any other
similar sources).
"R"
–
the outlets of the heat exchanger on some
modifications vertical water heaters are located on the
right side of the mounted on the wall appliance.
The exact and complete model number, nominal operating
parameters and serial number of purchased water heater are
marked on manufacturer plate affixed on its body.
Water heaters for vertical installation.
These models of heaters
are designed for mounting only in a vertical position with cold and
hot water pipes downward, Fig. 1.
Water heaters for horizontal installation.
These models of heaters
are designed for mounting only in a horizontal position in accordance
with the schema designed for each model number, Fig. 2.
Water heaters with heat exchanger.
The water heaters of
these models secure an energy efficient operation thanks to
their built-in heat exchangers. The heat exchanger(s) outlets
locations and their basic installation distances are shown on Fig.
2
1
and Table . By using a heat exchanger bigger quantities of
water inside the water container can be heated through an
additional alternative energy source, i.e. local or central heating
system, solar collectors and other similar sources. For more
efficient heat exchanger use it is recommended to move the
heat-transfer liquid
heat-transfer
with a circulation pump. For
liquid may be used as well water with composition and
parameters with deviations within the permissible norms as
defined in the regulations concerning the water legislation. The
heat-transfer liquid must be with temperature not higher than 85
°
С
and in its circuit must be installed a control device set at this
temperature in order not to allow thermal cut-out of the electrical
heating element during normal operation. The pressure of the
heat-transfer liquid in the heat exchangers must not exceed the
stated working pressure of the heater.
WATER HEATER INSTALLATION ON THE WALL
OF THE PREMISE
The water heater can be installed only in normal fire safeguarded
premises and where temperature cannot fall under 0 °C. The
availability of a siphon on the installation for waste waters as
during normal usage of the water heater, water may leak from the
safety valve aperture. At the same time the siphon will facilitate the
water tank maintenance, prevention and servicing operations
when water needs to be drained out of the water tank.
The type and nature of wall construction material, the appliance
dimensions, the way of fixing it, the location of its fixing elements
and tubes, its protection against dripping water must be taken into
account when choosing the proper place for installation. The
appliance must be mounted where it is protected against water
dispersion or water pouring over. In order to reduce heat loss it is
recommended to keep minimum distance between the heater and
the places where the hot water is used.
It is obligatory that there are spaces provided between the
appliance and the surrounding walls and the ceiling of the premise,
as follow:
For vertical heaters
–
at least 70 mm between the appliance
and the ceiling; at least 50 mm between the appliance and the
side wall; at least
0 mm below the appliance to facilitate
50
servicing and possible repair.
For horizontal heaters
–
at least 70 mm between the unit and
the ceiling; at least 70 mm between the side cover (outlets
excluded) and the wall; at least 0 mm between the electric
50
part plastic cover and the wall to facilitate the servicing and
possible repair, and a sufficient distance below the unit for
installation of water connections and drain the water from the
tank.
For water heaters with heat exchangers must be kept a
distance from the coil terminals side and the joints for
additional thermostats necessary to connect the additional
control and safety units.
Water heater should be installed steadily on the wall of the
premises. For this purpose steel bolts (studs), tightly fixed in the
wall, with diameter 10-12 mm are used. The fixing elements should
be secured against pulling aside the wall
–
they should be anchor
or passage bolts (depending of the wall construction material). It is
15
EN
