When choosing the place of installation total weight of EWH filled with water shall be taken into
account. Walls and floor with low carrying capacity should be strengthened accordingly. When drilling
(making) holes in the wall, regard is to be had to cables, ducts and pipes in the wall. EWH is
suspended with casing on anchor hooks fixed in the wall.
Hooks mounting on the wall shall exclude spontaneous movement of EWH brackets along them. To
perform maintenance and servicing of EWH the distance from the protective cover to the nearest
surface in the direction of removable flange axis shall be at least 0,5 m.
In order to avoid damage of the user's and/or third parties' property in the event of a faulty hot water
system, it is required to install EWH in spaces with waterproofing and drainage to the sewers, and in
no case to place under items exposed to the water under EWH. When placed in unprotected areas a
protective plate (not supplied) with drainage into sewers shall be installed under the EWH.
In case of placing EWH in hard-to-reach places in order to perform maintenance and warranty
service (mezzanine floors, niches, ceiling voids, etc.), installation and dismantling of EWH is carried
out by the user on his own or for his own account.
Connection to water supply
Cold water shall be supplied to EWH using pre-filter with water treatment level not less
than 200 µm.
Install pressure relief valve (
17
) at the cold water inlet (
21
) tube with the blue ring, with 3,5 – 4
revolution, ensuring junction tightness with any sealing material (flax, FUM tape, etc.).
During water heater operation water may leak out of the exhaust outlet pipe of the safety valve to
relieve excessive pressure, which is made for the purpose of water heater safety. This outlet pipe shall
remain open to the atmosphere and be installed constantly down and in a non-freezing environment.
It is recommended to attach to the drain hole a rubber or silicone tubing of appropriate diameter to
drain moisture. It is required regularly (at least once a month) to discharge a small amount of water
through the exhaust pipe of the safety valve into the drain to remove lime deposits and to test the
operating functionality of the valve.
Knob (
18
) is intended to open the valve (
17
). It is required to control when operating water heater this
knob to be in position closing water draining from the tank.
Connection to water supply system shall be made in accordance with (
Figure 1
) using copper, plastic
pipes or special sanitary flexible conduits designed for temperature up to 100° C at the maximum
working pressure. Do not use used flexible pipes. Plumbing pipes and fittings shall conform to the
parameters of the water supply network and have the required quality certificates. Excessive efforts
are not allowed when mounting in order to avoid damage to pipe threads, glass-porcelain coating of
inner tank.
ATTENTION! Do not operate EWH without safety valve or valves made by other
manufacturers.
After having connected EWH make sure that cold water shut-off valve in EWH (
24
) is open and hot
water shut-off valve in EWH (
25
) is closed. Open the EWH cold water inlet valve (
22
), hot water inlet
valve (
23
) and hot water mixer faucet to allow outflow of air from EWH. When complete filling of EWH,
EN
EN
water will constantly flow from tap faucet. Close the hot water tap on faucet mixer, check the flange for
leaks and, if necessary, tighten the bolts.
When connecting EWH in places not provided with water mains it is allowed to supply water to EWH
from auxiliary tank using pumping station, or from the tank placed at a height of not less than 5 meters
from the top of EWH.
Connection to power supply
Before connecting of water heater to power supply, make sure that its settings
correspond to specifications of the heater.
ATTENTION! Before switching on power supply, make sure that EWH is filled with water!
Water heater shall be earthed to ensure its safe operation.
Water heater is equipped with a standard power cord with euro plug and RCD (option). Power
outlet shall have grounding contact with earthing wire and be in a place protected from
moisture, or meet requirements not less than IPX4.
Operation and maintenance
Control panel has power selection keys (
11
)
Fig. 1
with integrated indicators.
EWH model
Key
«Power I»
–
Mode
1
Key
«Power II»
–
Mode
2
Praktik, Praktik Slim
1,5 kW
1 kW
Both keys correspond to power 2 5 kW. You can select heat level, basing on needs in volume of hot
,
water, or depending on the season.
In the course of EWH operation user can adjust heating water temperature using temperature
adjustment knob (
)
located on the protective cover. By turning the knob anticlockwise (up to
10 Fig. 1
the stop) EWH is disconnected from the power, by turning in a clockwise direction the temperature
slowly increases up to +74° c (± 5° C).
When conducting EWH maintenance presence of scum on heating elements is checked. At the same
time residue that may be formed at the bottom of the EWH is removed. If there is scum on THE, then it
can be removed using special detergents or mechanically. It is recommended to hold the first
technical maintenance after a year from the time of connection by experts of a specialized
organization and depending on intensity of scale and residue to determine intervals of follow-up
maintenance. This action will extend the maximum EWH service life.
Attention: accumulation of scale on THE may cause its damage.
Damages to THE due to scale formation are not subject to warranty. Regular maintenance is
not included in the warranty of the manufacturer and the seller.
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