Eldom Invest 72269 Technical Description Manual For Installation, Operation And Maintenance Warranty And Warranty Condi page 20

EN
ATTENTION! For appliances with heat exchangers. It is
compulsory that all additional tube outlets (except the outlets of
the heat exchangers), which will not be connected to the
plumbing, as well as the outlets for additional thermostats
and/or thermomanometer must e closed with the equipment
from the package, or other suitable
The compounds should be
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
Ÿ
distant mixing tap;
Open the stop valve on pos. 4 from Fig. 11);
Ÿ
Wait until a thick and powerful stream of water runs out of the
Ÿ
mixing tap;
Close the turn-cock for hot water of the mixing tap;
Ÿ
Lift the lever of the combined valve on pos. 5 from Fig. 11) and
Ÿ
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.
Ÿ
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 mains with the optional device
Ÿ
and for greater security disconnect the fuse in the heater
phase circuit.
The cold water access to the appliance is cut – close the stop
Ÿ
cock (pos. 4 from Fig. 11).
Open the hot water cock on the tap or disconnect the tank hot
Ÿ
water pipe (outlet pipe) connection.
Lift the lever of the combined valve on pos. 5 from Fig. 11 and
Ÿ
20
b
equipment for this purpose.
sealed for a water pressure of at
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 WATER HEATER WITH HEAT
EXCHANGER 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. 12, 13 (with two heaters, modifications marked with "D"), 14
(modifications with "G", "GN") and 15 (modifications with "W",
"WG", "WDG").
The electric power supply of the water heaters is 230 V~ and
should be performed by a separate current circuit of insulated
three-core supply cable with a cross-section of each of the wires of
2
2,5 mm (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 earthed and it shall reduce its
safety.
WARNING! IT IS COMPULSORY that in the electric circuit