hajdu Z30E, Installation And Owner'S Manual

Page: 16 / 84

EN
16
electric and pipeline systems
immediately with the help of the closing
valve and the main switch.
Leaking of the hot water faucet causes
damaging overheating. The reparation
of the faucet is Your own interest.
7.1 Combined safety valve
Please blow off the valve at least every
second month turning the blow off
button of the safety valve in the
direction indicated by the arrow when
the hot water tank is in a cooled state.
This way, the valve seat is cleaned from
sand grains and blocks them from
sticking. If water leakage does not stop
after switching off the heat, please turn
to repair service. By the way, it is
recommended to ensure annual check
of the hot water tank.
7.2.1

E
,

Temperature controlling
device
Turning the button fully counter-
clockwise, the temperature controlling
device gets into zero state. Turning the
button
clockwise, the desired
temperature can be set at higher and
higher degrees, see Figure 5. /1!.
Arriving at sign *, the water tank is
protected against frost, except for
cases of non-operation of the water
tank or current failure. Frost protection
does not cover the water pipeline
system and water fittings.
Under frost protection mode, the
temperature of the water is not allowed
to fall below appr. 7 ºC, while energy
consumption is minimal. Setting the
controlling button to the beginning of
the duple continuous line, the water
tank will provide water of 40º C. This
mode, i.e. setting the water tank to
provide water of 40º C represents an
energy saving mode as this time, heat
loss decreases by 70% as compared to
the quantity in the mode of providing
water of 80º C, furthermore, the hot
water produced in this mode can be
used without cold water mixing. If
hot water needs can be fulfilled with
water of this temperature besides
the given storing capacity, it is
reasonable to operate the water tank
at the temperature of 40º C. The
start of the triple line means 60 ºC
and its end means 80º C. In case of
larger water need, operate the hot
water tank in a mode of 60 ºC water
provision and change the
temperature controller into 80 ºC
water provision state only if
necessary. In case of both modes of
40 ºC and 60º C water provision, scale
deposition and corrosion are reduced
significantly.
7.2.2

EK-1
Temperature controlling
and reducing device (built together)
The temperature of the water stored
in the hot water tank can be
controlled outside with the help of
the turn button without levels, in
order to set water temperature
between 10 ºC – 70 ºC.
Turning the button fully clockwise,
the temperature controlling device
gets into zero state.
Turning the controlling button
counter-clockwise,
the desired
temperature can be set at higher
degrees, see Figure 5./2.
In case of failure of the controller,
the reducing device saves the hot
water
tank against damaging
overheating in the way that before
the temperature of hot water stored