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1. GENERAL
1.1 Description of the
appliance
Construction of the water heater is in
accordance with the European standard
for gas heated water storage heaters for
sanitary application (EN 89).
The appliance thus meets the European
Directory for Gas Appliances and is
therefore entitled to carry the CEmarking.
It is an open ued appliance without
ventilator and with a ue gas down draught
safeguard (category B11BS). The water
heater is suitable for a maximum working
pressure of 8 bar. The water-heater tank is
manufactured from low carbon sheet steel
and is glass-lined on the inside. In addition
the tank is tted with a sacricial anode as
an extra protection against corrosion.
A thick PU-insulation layer covered in a
steel jacket reduces unnecessary heat
loss. When the appliance is lled with
water it continuously is under water
pressure.
As hot water is drained from the tank,
cold water is added immediately. A ue
bafe has been placed in the ue tube to
improve heat transfer. The ue gasses
pass their heat on to the water by means
of radiation and convection.
The ue gasses are guided to the
chimney via the draught diverter. The
exhaust of the ue gasses is realized by
natural thermal draught (see Figure 1).
Dead legs on a hot water installation
are undesireable. Where possible
they should be avoided. Where the
inclusion on the system of a dead leg
is unavoidable the following restrictions
should be applied:
- for pipes not exceeding 19 mm. inside
diameter; maximum lengh of dead leg
permitted 12.0 metres;
- for pipes exceeding 19 mm. but not
exceeding 25 mm. inside diameter;
maximum length of dead leg 7.5 metres;
- for pipes with an inside diameter
exceeding 25 mm. maximum dead leg
3.0 metres.
1.2 Packaging material
The packaging protects the device
against transportation damage.
The selected packaging material is
environmentally friendly, recyclable and
can be disposed of in a relatively easy
and environmentally friendly way.
1.3 Disposal
Old and discarded devices contain
substances that are to be recycled.
Please take the local laws with respect
to waste processing into account when
disposing of old and discarded devices.
Never dispose of your old device through
the domestic waste, but bring it to a
municipal collection point for electric
and electronic equipment. If necessary,
ask your dealer/installer for information.
Store the old device outside the reach of
children.
4


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