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Rotex Sanicube
Heat
Exchanger Tank
The
ROTEX Sanicube Heat Exchanger Tank is a combination
of hot water storage tank and a water heater system. The actual
heat is not stored in the domestic water but in the clearly separate
storage water. The domestic water content is relatively low at 19
to 80 l, depending on the storage tank type. The total storage tank
capacity is 300 to 500 l, however. The heat volume which can be
stored and extracted is correspondingly large.
The
storage tank water is filled once during commissioning and is only
used for heat storage. It is neither replaced nor consumed. The
storage tank itself consists entirely of plastic, the inner and
outer wall is made of impact resistant polypropylene (PP), the space
in between is insulated with heat-conserving foam. This produces
excellent heat insulation values and keeps surface losses to a minimum.
The
heating of the storage tank water and the charging of the storage
tank can be carried out in various ways:
- Heating
Water via a Stainless Steel Heat Exchanger
-
Solar Energy - Directly Heating Storage Tank Water via the solar
collectors
-
Electric Heating Element (optional 2 or 2-6 kW)
The
domestic water hot water is heated in a pipe register heat exchanger
made of stainless steel, which is immersed in the storage tank water.
This insures no contamination of the domestic water.
 As
a result of its structure, the ROTEX Sanicube Heat Exchanger
Tank is optimum from a water hygiene perspective, since
the water to be heated is passed through to an independant pipe
system to be heated. The water content of the domestic hot water
heat exchanger is currently 19/24 litres and is therefore only a
fraction of the water quantities usually found in hot water storage
tanks. Areas with little current or which are not heated all the
way through on the hot water side do not even come into question
in the ROTEX Sanicube.
Domestic water
is exclusively located in one pipe so that deposits of sludge, rust
or other sediments, as can occur in containers with a large volume,
are not possible. The water stored first is also taken out first
(First-in-First-Out Principle).
The outstanding
water hygiene advantages of this type of hot water storage tank
were confirmed by extensive research carried out by the hygiene
institute of Tübingen University, Germany.
The issue of
water hygiene is of particular relevance in the case of buildings
with a large hot water demand. In hotels, hospitals, sports halls
and homes for the elderly, the supply of hot water is extremely
important. There are clear legal requirements pursuant to the German
domestic water Ordinance (Trinkw.V 2000).
The
ROTEX Sanicube hot water heat exchanger & storage tank optimally
meets the most demanding water hygiene requirements, since its operates
like a flow water heater with regard to domestic water. Where there
is a demand for large volumes of hot water, several ROTEX Sanicubes
are simply connected to each other like modules. This has the advantage
that the available space can be used in various ways. With the appropriate
control technology equipment, it is also possible to install decentralised
hot water storage tank systems in large supply networks.
Thanks to its
light weight and its favourable dimensions, the Sanicube hot water
storage tank is easy to transport and can be easily incorporated
into existing buildings. In this case, large hot water storage tank
systems can be connected to each other.
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