Scale Removal; Water Drainage - hajdu Z30E Instructions De Montage Et D'utilisation

It is extremely important to ensure a
good metal contact between the
active anode and the earthing screw.
IN CASE OF NEGLECTING THE ABOVE
INSTRUCTIONS THAT CAUSES DAMAGE
TO SAFETY AND USAGE FEATURES OF
THE HOT WATER TANK, YOU LOSE
YOUR GUARANTEE AND WARRANT
RIGHTS.

7.5 Scale removal

Depending on the quality of the water,
scale deposition may occur on the
heater or on the tank. The scale
deposited on the heater increases the
probability of heater failure, so it has
to be cleaned from scale in every
second year.
The removal of scale is considered to
be a maintenance activity, it is not
part of activities under guarantee.
As this activity required opening the
electric fitting, the checks of the
temperature
device, the heater
connections should also be performed
in the same time.
THE CHECK CAN ONLY BE PERFORMED
BY A CONTRACTED SERVICE SHOP.
The necessity of cleaning the internal
tank has to be checked at removal of
the mounted closing cover. During
cleaning, one has to take care so that
the protecting cover remains intact.
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7.6 Water drainage

Water drainage can be performed
through turning the blow off button
of the combined safety valve in the
direction indicated by the arrow,
through the water outlet tube.
Before water drainage, the valve
closing pipeline connection and the
cold water faucet have to be closed,
while the hot water faucet has to be
kept opened during water drainage.
EK-1
7.7 Frost prevention
Frost prevention related to non-
operation of the hot water tank
(power switch off during winter) can
only be ensured if the tank is totally
emptied.
In case of putting into operation the
hot water tank again, before it is
connected to the electric system, it
should be totally filled up with
water.
Maintenance:
starting repair or maintenance work,
the appliance should be separated
from electric
maintenance or repair operation on
the appliance should be performed
by a professional technician. During
repair or maintenance work, the
appliance should be re-installed into
its original, out-of-factory state." It
is highly recommended to have the
professional
the repair in order to preserve
warranty
18
Attention!
network.
technician document
of the appliance.
Before
Any