EN
EN
and blue color is marked the cold water pipe and an arrow starting from the
pipe in red color - the hot water pipe. Some appliances pipes are
additionally marked with badges. The pipes outlets are with threading 1/2".
A schematic diagram for water heater connection is shown on Fig 2. When
the water heater works at the water pipe tank pressure and that of the
safety valve. In the event where the conduit pressure is greater than 0,5
MPa it shall be required the installation of reduce valve (pressure-
reducing valve). Where local regulations require use of additional devices
that are not included with the unit supply set and are not placed in the
packaging, these must be purchased and installed according to
regulations.
The water heater is equipped with a combined non-return-safety valve.
The latter is factory-fitted on the cold water pipe or is located in the
packaging of the appliance. The combined non-return-safety valve
located in the packaging of the appliance MUST OBLIGATORY be
mounted on the cold water pipe. During that installation the arrow on its
hull showing the direction of water flow through the valve must be
followed.
WARNING!
The absence or improper installation of the combined
valve supplied with the product is grounds for voiding the product
warranty.
WARNING!
It is FORBIDDEN to install any kind of shut-off fittings
between the combined valve and the water heater! It is absolutely
forbidden to obstruct the lateral opening of the combined valve and/or
to block its lever!
Where the plumbing pipes are copper or of another metal, other than that
of the water tank, or where brass fasteners are used,
it is obligatory
to
install on the water tank inlet and outlet non-metallic couplings
(dielectric fittings).
ATTENTION!
For units with heat exchangers. Any additional tubular
outlets (excluding those of the serpentines) that will be connected with
the plumbing, and the holes for additional thermostats and / or
thermomanometer must be closed with a package insert or other
suitable for the purpose. The connections must be sealed for a water
pressure of at least 1.6 MPa.
It is recommended to set up a draining system for any dripping from the
combined valve side opening. The draining pipe must have a constant
downward slope and located in frost secure environment and its ends to
be constantly kept open to the atmosphere.
Once the water heater is connected to the water supply main, its water
tank should be filled up with water. It is carried out in the following order:
Open completely the turn-cock for hot water of the most distant
mixing tap.
Open the stop valve on pos. 4 from Fig. 2.
Wait for the air from the system to come out and over half a
minute from the fitting outlet to flow out a thick and strong water
stream.
Close the turn-cock for hot water of the mixing tap.
lift the lever of the combined valve on pos. 5 from Fig. 2 and wait
for about 30-60 seconds until a thick and powerful stream of
water runs out from the valve side opening.
Loose the lever of the combined valve.
WARNING!
If no water is coming out of the opening of the
combined valve or the flow is weak (during normal water pressure),
this should be considered as a malfunction indicating that impurities
from the plumbing or caused by sewage connections have blocked
the safety valve of the combined valve.
IT IS FORBIDDEN
to proceed with appliance electric connection before
eliminating the reason for malfunction!
WARNING!
Failure to comply with the requirements for connection
to the water supply system may cause partial filling up of the water
tank and malfunction of the heating element, or when the combined
valve is not installed at all or has been improperly installed
this may even cause destruction of the water tank, the room and/or
other damages to tangible and intangible property. Such
consequences are not within the scope of manufacturer or seller
warranty liabilities and shall be at the expense of the party, which
has not observed the present manual instructions.
WARNING!
The combined reciprocating safety valve is one of the unit
safety components ensuring security for water heater users. It is
specifically FORBIDDEN to use the water heater with a defective or
removed/unmounted combined safety valve!
The water heater connection to the water supply system must be performed
only by qualified persons.
Where necessary the safety valve may serve for draining the water out of the
water tank. It is carried out the following order:
Disconnect the heater from the electrical power supply network with
the optional device and for greater security disconnect the fuse in the
heater phase circuit.
Cut the cold water access to the appliance - close the stop cock, pos. 4
from Fig. 2.
Open the hot water cock on the tap or disconnect the tank hot water
pipe (outlet pipe) connection.
Lift the lever of the combined valve 5 in Fig. 2 and wait until the water
stops flowing out of the valve opening.
These steps do not still secure the complete draining of the water out of the
tank. It is completed only by a qualified person because it requires complete
disconnection of the appliance electric circuit and dismantling the water tank
flange.
WARNING!
IT IS STRICTLY PROHIBITED to turn on the heater power
while the water tank is partially or completely emptied of water! Do not
forget to fill the tank with water before putting it back into operation.
WARNING!
The coolant circulation through the heat exchanger of a
water heater equipped with such device is PROHIBITED when the water
tank is partially or completely emptied of water.
WARNING!
When draining the water out of the water tank all necessary
precautions must be taken to prevent damages from flowing out water.
CONNECTING THE HEAT EXCHANGER OF
WATER HEATER TO THE ALTERNATIVE HEAT
SOURCE CIRCUIT
The water heater with heat exchanger must be connected to the alternative
heat source in accordance with the special additional instructions provided
by the company responsible for the installation and connection of the heater
design. It is mandatory to install all supplied and/or recommended by this
company safety, control and coolant movement management devices.
WARNING!
It is prohibited to fit stop valves on heat exchanger both ends
(inlet and outlet) simultaneously. In cases where the water heater heat
exchanger shall not be used and is not connected to the heat source
circuit, it must be filled with propylene glycol solution suitable for heating
systems.
Connecting the heat exchanger of the water heater to an alternative heat
source circuit must be completed only by qualified technicians in the field
from a company specializing in such services and in accordance with the
design.
WATER HEATER CONNECTION TO THE POWER
SUPPLY NETWORK
WARNING!
Do not proceed to connect the water heater to the power
supply network unless you have made sure that its water tank is full with
water! Check!
The water heater is an appliance with protection degree against current
damages Class I, which requires its compulsory connection to the earthling
circuit of the power supply installation.
The water heaters models electric circuit schema are shown on Fig. 4.The
electric power supply of the water heater is 230 V~ and is performed by a
separate current circuit of insulated three-core supply cable with a cross-
section of each of the wires of 2,5 mm
2
(phase, neutral and grounding).
Therefore if the in-wall cable is two-wire, a qualified electrician must add a
third, protective conductor with no interruption on its track from the
switchboard to the water heater.
If the earthling conductor/wire has intermediate connections, latter must be
secured against loosening. Otherwise the appliance shall not be correctly
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