hajdu ZA15 Montage- Und Gebrauchsanleitung Seite 14

• If the water heater to be installed does not simply replace an existing
appliance, but it forms part of the renovation of an existing hydraulic
system or a new hydraulic system, the company installing the water heater
shall issue a certificate of conformity to the buyer certifying compliance
with all effective regulations and specifications, after finishing installation
of the appliance. In both cases, the company performing installation has to
execute safety and operational testing of the entire system.
• When put out of use in a room exposed to freezing, you are recommended
to drain the appliance. This operation must be performed by a qualified
professional.
• Running hot water with temperature above 50 °C may cause serious burn
marks.
• Improper installation may cause injuries to people or animals, or cause
damages in objects. The manufacturer assumes no liability for these.
• Before activating the heating, the tank must be filled with water.
• It is forbidden to connect the appliance using a hose. For cold and hot
water connections, steel or red copper pipe rated for 0.6 MPa nominal
pipeline pressure, heat resistant plastic pipe rated up to min. 100 °C , or
flexible connection may equally be used. When connecting to a copper
pipeline, the use of insulating spacers is compulsory.
• It is forbidden and dangerous to expose the tank to pressures exceeding 0.6
MPa. If the pressure of the pipeline exceeds 0.6 MPa, even on a temporary
basis, a pressure reduction valve has to be mounted in front of the hot
water tank.
• It is forbidden to insert water pipeline fitting between the safety valve and
the appliance. The valve outlet must be directed downward, and water may
leak from the drainage pipe of the pressure release device. This pipe must
be left open towards the air space. The drainage pipe must be directed
downwards (from the appliance) into a frost free room, and free drainage
must be ensured towards the air space. It is forbidden to divert water
leakage in non-visible manner.
• The pressure reduction valve and the safety valve must be installed and
operated in a frost free environment.
• It is forbidden to operate the hot water container without any protective
earthing.
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