THERMEx 526142, User Manual

Page: 13 / 32

To avoid property damage of the user and (or) third parties in case of faulty hot water supply system, it
is necessary to install EWH in the facilities having hydraulic insulation of the floors and drainage into
the sewage system, never locating the items subject to water impact under the EWH. In case of
installation in non-protected facilities, it is necessary to install a safety tray (not included into the scope
of supply) under the EWH with drainage into the sewage system.
In case of EWH arrangement in the areas hardly accessible for technical maintenance (entresols,
recesses, ceiling voids etc.), installation and dismantling of EWH shall be carried out by the user
personally, or at its own expense.
Connection to water line
It is required to supply cold water to EWH using water prefilter with the purification
degree not less than 200 µm.
Install a safety valve ( 18 ) at the cold water inlet ( 17 ) – pipe with blue ring by 3,5 – 4 turns, ensuring
connection leak tightness using any sealing material (linen, FUM tape etc.).
During the water heater operation water can leak out of the outlet pipe of the safety valve for
excessive pressure release to ensure safety of the water heater. This outlet pipe shall be opened for
atmosphere and installed constantly downwards in the non-freezing environment. It is recommended
to connect to a drainage hole a rubber or silicone pipe of the relevant diameter for moisture removal.
Frequently (at least once a month) it is necessary to drain small amount of water through the outlet
pipe of the safety valve into the sewage system to remove lime deposits and check operability of the
valve.
Connection to the water supply line shall be carried out in accordance with ( Fig. 1, 3 ) using copper,
plastic pipes or special flexible sanitary wiring, intended for temperature up to 100 °С at maximal
operating pressure. Do not use any used flexible wiring. Sanitary wiring and shut-off valve shall
comply with the parameters of the water supply line and have required quality certificates. Do not use
excessive force during the installation to avoid pipe thread, and glass-porcelain coating of the inner
tank.
For water heaters of ER series: 05022 480, 08022 480, 10022 480, 15022 480, 05022 481, 08022
481, 10022 481, 15022 481 connection of the heat exchanger and connection to the water supply line
shall be carried out in accordance with ( Fig. 2 ). Connection of the heat exchanger shall be carried out
to the heating system (gas or liquid-fuel boiler).
ATTENTION! Do not use EWH without a safety valve and never use the valves of the
other manufacturers.
Upon the EWH connection make sure that cold water shutoff valve of the EWH is opened, and hot
water shutoff valve is closed. Open cold water inlet valve to EWH , cold water outlet valve from EWH
and hot water inlet valve at the mixer tap to ensure air discharge from EWH. Upon complete filling of
EWH, constant water flow comes out of the mixer tap. Close hot water valve at the mixer tap, check
the flange for leaks and tighten the bolts if required.
While connecting EWH in the areas not equipped with the water supply line, it is allowed to supply
water to EWH from the auxiliary reservoir using a pumping station or from the tank located at height at
least 5 meters from the highest point of EWH.
12
EN
Connection to power network
Prior to the water heater connection to electrical network, make sure its parameters
complies with the technical specifications of the water heater.
ATTENTION! Prior to power activation make sure EWH is filled with water!
Water heater shall be earthed to ensure safe operation.
EWH is equipped with the stationary power cable (option) with Europlug (option). Power outlet shall
have an earth terminal with the connected earthing wire and located in the area protected from
moisture, or comply with the requirements not less than IРХ4.
Technical maintenance (TM)
Frequent TM and timely replacement of the magnesium anode are obligatory for long-term EWH
operation. Non-compliance with these requirements is the basis for the warranty service termination.
Technical maintenance and replacement of the magnesium anode are not covered by the
warranty obligations of the manufacturer and seller.
TM includes inspection of the magnesium anode condition and scale buildup on the TEH. Simulta-
neously it is necessary to remove sediment collected in the bottom part of EWH.
Magnesium anode shall be replaced at least one a year. Provided that water contains
multiple chemical additives, the magnesium anode shall be replaced more frequently.
Scale buildup on the TEH may result in its failure, that is not covered by the warranty;
thereby, its replacement is not included into the obligations of the manufacturer and
seller.
In case of the sediment buildup on the TEH, it can be removed using special descaling agents, or
mechanically. During the sediment removal from EWH it is not allowed to use excessive force and
abrasive detergents not to damage protective coating of the inner tank.
The importance of the first technical maintenance is determined by the fact that according to the
intensity of sedimentation and scale buildup, as well as the magnesium anode consumption, it is
possible to determine the period of the following TMs, extending lifetime of EWH operation. Violation
of the above requirements reduces the period of EWH operation, increasing the risk of EWH failure,
terminating warranty obligations.
It is necessary to comply with the following requirements to carry out TM and magnesium
anode replacement:
Switch off EWH power supply;
џ
Let hot water cool down or drain it through the mixing tap;
џ
Shut off cold water supply to EWH;
џ
Unscrew safety valve and open drain valve;
џ
Put on rubber hose on the cold water inlet pipe or on the drain valve, guiding the other end to the
џ
sewage system;
Open hot water valve on the mixer tap;
џ
Drain water from EWH through the cold water inlet pipe or drain valve;
џ
13
EN