9
ENG
The water heaters with heat exchanger are connected to water supply
in the same way like regular water heaters. Water heaters with heat
exchanger are ment for connection to other energy sources (central-
ized heating system, solar heating and heat punps). Entrance point
of heated media to the heat exchanger is marked with red, while exit
is marked with blue. Water heating with electrical heater and heat
exchanger could function contemporary or separately.
Water heaters with heat exchanger are not designed for central heat-
ing systems which fluid temperature exceeds 110°C.
Due water heating, water pressure in water heater increas up to safe-
ty valve set limit, and water drops come out the valve. The drip
can be piped to the drain by installing a catching unit just below the
safety valve.In case the existing plumbing does not enable you to
pipe the dripping water from the return safety valve into the drain,
you can avoid the dripping by installing a 3-litre expansion tank on
the inlet water pipe of the boiler.
Water may come out in drops from the exhaust pipe of pressure re-
duction device i.e, safety valve, this pipe has to be open and posi-
tioned downwise, to prevent freezing of the water in the pipe.
By regular function of the safety valve it should be possible to re-
move limescale sediment as well as to check if it is bloacked.
Safety valve is delivered with the water heater and the sheme shows
how to install it.
At installation of a water heater and its connection to water supply, it
is recomanded to use new set of hoses, old ones should not be used.
CONNECTION TO POVER SUPPLY
Electric accumulation water heater is connected to power supply by
valid standards for electrical installations, with a plug cable 3x1,5 mm
H05VV.
Before connecting power supply cable, unscrew the two screws and
remove protection cap of the electric water heater. The electric water
heater is not delivered with a device to cut off the power from the
supply permanently. A separating element of all the poles from the
supply should be included, according to local installation rules. Such
separating means have to be included in the electrical installation.
