hajdu Z30 SMART Instructions De Montage Et D'utilisation page 25

• It is forbidden to operate the hot water container without any
protective earthing.
•
The connection of the container to the electrical system must be
of a permanent design. Wall sockets may not be used.
•
Cable connection must be implemented from the water heater to
the isolation switch, which must be incorporated in the fixed wire
network. The overcurrent protection of the isolation switch must
be ensured using a miniature circuit breaker.
•
The current of the electric system has to be connected to the con-
tainer through a two-pole switch (disconnecting all poles) ensuring
full disconnection in an environment of overvoltage category III.
(At least 3mm distance must be ensured between open poles.)
•
The first heating cycle must be supervised by a professional.
The electrical safety cover may not be removed, but by a profes-
sional; failure to observe this, may lead to electrical shock or other
dangers.
To ensure safe operation it is recommended to regularly (every
year) have the appliance and the combined safety valve checked
y a plumber for proper operation. Additionally, it is also recom-
ended to blow off the valve every two months by turning the blow
off button of the safety valve in direction indicated by the arrow.
This way, the valve seat will be cleaned of any possible deposit
(scale, sand grains etc.).
• If the mains cable damaged, it must be replaced in order to avoid
any danger. Such replacement must be performed by the manu-
facturer, its service support or a similarly qualified professional.
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