Inhoudsopgave
Advertenties
Beschikbare talen
Beschikbare talen
EN
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. 1-3, and their engineering characteristics – in Tables 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 and digit as follow:
The base model is marked only with a number – a water heater with an
џ
enameled water container for vertical installation, Fig. 1 and 1a.
"А" – in the enameled water tank is built-in an anode tester indicating
џ
the level of corrosion protection and anode wear, Fig. 1b.
"Н" - the water container of the appliance is made of chrome-nickel
џ
steel alloy.
"Х" – the water heater may be installed only horizontally.
џ
"B" - the water heater for horizontal installation comes with a set of
џ
brackets for mounting.
"S" - the water container is equipped with built-in one heat exchangers
џ
for water heating from an alternative heat source (local water heating,
solar collector and any other similar sources), Fig. 3. Water heaters
with heat exchanger designed for horizontal installation are marked
with additional combinations of letters, the main ones being "XBS,"
Fig. 2.
"R" – the outlets of the heat exchanger and/or the cold/hot water pipes on
џ
some modifications vertical and horizontal water heaters are located on
the right side of the mounted on the wall appliance.
"L" – the cold/hot water pipes on some modifications of horizontal
џ
water heaters are located on the left side of the mounted on the wall
appliance.
"D", "DC" – within the water heaters are built-in up to two electric
џ
heaters located in special tubes on the tank flange. It improves the
appliance safety of the device while increasing corrosion resistance.
"D" – metal tube heating element, up to 1,6 kW for 30 and 50 l., up to 2
kW for 80 and 100 l. and up to 2,4 kW for the remaining. "DC" – ceramic
heating element, 1,5 kW for 50 l. and up to 2.2 kW for the remaining.
"E" and "Ek" – water heater with heater digital control unit ("E") or in
џ
modification with heat exchanger - on both heater and devices for
coolant flow control ("Ek"), Fig. 1c. These appliances are
accompanied by additional instructions describing how to use the
digital control unit.
"W", "WG", and "WDG", "WNDG" – the water heater is with new design
џ
of the shell. "W" - The appliance is equipped with rocker switch (for turn
on/ off of the heating element) and with additional LED indication for
operation of the heating element. "WG" - the appliance is equipped
only with LED indication for the operation of the heating element.
General view of these modifications is shown in Fig 1d.
The electric power of water heaters (excluding those with letters "D" and
"DC") is 1,5 kW for 30 l, up to 2 kW for 50 l and up to 3 kW for all others.
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. 2-3 and Tables 1a and 2. 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
liquid
with a circulation pump. For
water with composition and parameters with deviations within the
permissible norms as defined in the regulations concerning the water
legislation. The
heat-transfer liquid
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 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
џ
ceiling; at least 50 mm between the appliance and the side wall; at
least 350 mm below the appliance to facilitate servicing and possible
repair.
For horizontal heaters – at least 70 mm between the unit and the ceiling; at
џ
least 70 mm between the side cover (outlets excluded) and the wall; at least
350 mm between the electric 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.
In tanks with heat exchangers must be kept a distance from the coil
џ
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 recommended that the elements on which the
heater will be suspended are designed for three times greater loads than the
appliance total weight and located in the water therein. Installation of the
water heater on decorative walls (made of single bricks or of other light
materials) is strictly forbidden. On Fig. 1-3 and in the tables are shown the
14
heat-transfer
heat-transfer liquid
may be used as well
must be with temperature not higher
The pressure of the heat-transfer liquid in
EN
Advertenties
Inhoudsopgave
