than 0.5 MPa, the installation of a pressure reducing valve (reducing valve) is mandatory. In case
local regulations require the use of additional devices that are not included in the kit and are not
included in the package, they must be purchased and installed as prescribed.
The indoor unit is complete with a combined non-return safety valve. The latter is factory mounted on
the cold water pipe
WARNING!
IT IS FORBIDDEN to install shut-off or non-return plumbing fixtures between the
combined valve and the indoor unit! It is strictly forbidden to block the side opening of the
combined valve and / or block its lever!
In the case that the pipes of the plumbing installation are made of copper or other metal other than
that of the water tank, as well as when using brass connecting elements, non-metallic sleeves
(dielectric fittings) must be installed at the inlet and outlet of the indoor unit.
ATTENTION!
For appliances with heat exchangers. All additional pipe outlets (excluding those
of the serpentines) that will not be connected to the plumbing system as well as the openings
for additional thermostats and / or the thermomanometer must be closed compulsory with the
fittings provided in the package or other suitable for this purpose. The joints must be sealed for
a water pressure of at least 1.6 MPa
It is recommended to build a system for draaining the water that may possibly drip from the side
opening of the combined valve. The water outlet pipe should have a steady downward slope, to be
located in an environment, secured against freezing, and its ends to be permanently open to the
atmosphere.
After connecting the indoor unit to the plumbing system, its water tank must be filled with water. This
is done in the following order:
Opethn the hot water tap on the farthest mixing cock.
Open the shut-off valve (4 of Figure 12)
Wait for the air to come out of the system and let strong stream of water to run for half/one
minute from the outlet of the mixing cock.
Close the hot water tap on the mixing cock.
Lift the lever of the combined valve (5 in Figure 12) and wait 30-60 seconds for a strong
stream of water to flow through the side opening of the valve.
Release e valve lever.
WARNING!
If there is no water running from the valve opening or if the stream is weak (at
normal water pressure), this is a malfunction and indicates that impurities that have come
through the water main or caused by the plumbing connections have blocked the safety valve
on the combined valve.
IT IS FORBIDDEN
to continue with the electrical connection before removing the cause of the
malfunction!
WARNING
! Failure to comply with the requirements for connection to the plumbing system may
result in the water tank not being filled with water and to cause defect to the heater, and when
the combined valve is not installed or mistakenly installed, it may cause damage to the water
tank, to the room and / or other material and non-material damage. The consequences are not
within the scope of warranty obligations of the manufacturer and the seller and are at the
expense of person that failed to comply with the requirements of this instruction.
WARNING
! The combined non-return safety valve is one of the safety components to ensure
the safety of the indoor unit. It is strictly forbidden to use the indoor unit with a faulty or removed
/ not assembled combined valve!
The connection of the indoor unit to the plumbing installation is performed only by specialists.
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