The installation site must comply with the require-
ments of the electrical installation. During installation,
provide sufficient distance to adjacent walls and
sufficient space under the unit for the water and photo-
voltaic connections.
PVB-10:
The hanging strip (refer to Picture 1) is fastened
securely to the wall using two dowels and the screws
supplied. After mounting the wall bracket, the hot
water tank is hung in position. The water heater is then
fixed to the wall using the third dowel and the third
screw (hexagon head screw) through the eyelet at the
bottom of the housing. A drilling hole template is
enclosed with the product.
PVB-30 and PVB-80:
The fixing elements (e.g. 12mm stud bolts) must be
secured against being pulled out of the wall. The
securing elements must be designed for THREE TIMES
the weight of the water heater filled with water. Shims
are to be placed under the screw heads of stud bolts. A
drilling hole template is printed on the product
packaging.
CONNECTION TO THE WATER
SUPPLY
When connecting the device to the water supply,
please observe the indicated arrows and rings around
the cold and hot water pipes (supply and return pipes).
The cold-water pipe features a blue ring and is marked
with an arrow pointing towards the pipe. The hot water
pipe is indicated by an arrow pointing out of the pipe
and a red ring.
The water heater is equipped with a combined check
and pressure relief valve, which is included in the
product packaging and MUST be installed on the cold-
water pipe. The arrow on the body of the valve, which
indicates the direction of water flow through the valve,
must be followed during this installation.
The pipe connectors have male G½ threads. Schematic
representations regarding the connection of the water
heater are shown in pictures 1 and 2.
The water heater operates by the pressure of the water
pipe. The water pressure of the water supply system
should be higher than 0.1 МРа (1 bar) and lower than
0.5 МРа (5 bar). If the pressure of the water pipe
exceeds 0.5 MPa, a pressure reducing valve must be
installed. If additional equipment, which is not
included in the standard delivery, must be used to
comply with local regulations, they must be installed
according to these specifications.
In case the water pipes are made of copper or other
metal which differs from the metal of the water tank, as
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EN
well as if connecting elements made of brass are used,
non-metal fittings must be installed on the supply and
return side of the water heater (dielectric fittings).
WARNING! The installation of any shut-off or non-
return fittings between the pressure relief valve and the
water heater, as well as blocking the side opening of
the pressure relief valve and/or locking its lever is
prohibited!
A drainage system to remove any water that may drip
from the side opening of the pressure relief valve is
recommended. The drain line must be designed with a
constant downward slope in a frost-free environment
and must remain open.
After connecting the water heater to the water supply,
fill the tank with water. The sequence of steps to be
performed is:
• Fully open the hot water tap of the most distant
mixing tap.
• Open the shut-off valve. (Table 1, No. 4)
• Wait until the air is released from the system and
a strong jet of water flows from the mixer tap. Let
the water run for about 30 seconds.
• Close the hot water tap of the mixer tap.
• Lift the small lever of the pressure relief valve
(Table 1, No. 5), wait 30-60 seconds until a strong
stream of water flows out of the side opening of
the valve.
• Loosen the valve lever.
Warning! If no water or only a thin stream of water
flows out of the valve opening, this indicates a
malfunction. A possible contamination of the water
pipe might be present. The fault must be eliminated
before the unit is put into operation.
Warning! The combined check and pressure relief
valve is one of the protective devices that ensure the
safe operation of the water heater. The use of the water
heater with a damaged or removed/unassembled
combined check and pressure relief valve (safety valve)
is STRICTLY PROHIBITED!
The pressure relief valve can also be used to drain the
water from the tank if desired.
In such case, proceed as follows:
• Disconnect the water heater from any live
electrical wiring.
• Disconnect the cold-water inlet.
• Open the hot water tap of the mixing tap or
disconnect the hot water pipe (return pipe) of the
water heater.
• Lift the small lever of the pressure relief valve
(Table 1, No. 5) and wait until no more water
leaves the valve.
PVB-10, PVB-30, PVB-80
5