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Product description
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FA ROTEX SC+HYC - 10/2009
The cold waterwhich flows in when the hot water is drawn off is first routed to the storage tank at the very bottom of the
heatexchanger, where it cools the lower zone of the storage tank down as much as possible. The stand-by zone is heated by an
external heat generator (condensing boiler, heating pump, solar system, electric immersion heater element). The flow through the
heat exchanger for tank charge (SL-WT) is downwards from above.
The drinking water continually absorbs the heat from the storage tank water on its way up. The direction of throughflow by the
countercurrent principle and the helical shape of the heat exchanger creates a distinct temperature layering in the storage tank.
As high temperatures can continue in the top area of the storage tank, it can achieve a high hot water output even on long tapping
cycles.
The ROTEX Sanicube Solaris and the ROTEX HybridCube can, in addition to an external heat generator, also be heated by solar
power. Depending on how much solar energy is available, the entire storage tank is heated up. The stored heat is used for hot
water generation as well as for the heating support. The high total storage capacity also temporarily allows periods when the
sun does not shine to be bridged.
If an external heat generator is used as a ROTEX heat pump system, only a ROTEX HybridCube is permissible as the primary heat
source.
2.3
Advantages
Optimum water hygiene
Low flow or unheated zones on the domestic water side are completely excluded with the Hot water storage tank. It is impossible
for sludge, rust or other sediments to be deposited, as can be the case with other large volume tanks. The water which is fed
into the system first is also discharged first (first in, first out principle).
Low maintenance and corrosion
The Hot water storage tank is made of plastic and is completely corrosion-free. Sacrificial anodes or similar anti-corrosion units
are not necessary. This means that associated maintenance work, e.g. changing the protective anodes or cleaning the storage
tank, does not need to be carried out on the Hot water storage tank. Only the fill level of the storage tank water needs to be
checked.
The corrugated stainless steel pipe heat exchangers on the heating and domestic water side are made from high quality stainless
steel (1.4404).
Low scaling
On the storage tank side only one deposition of scale is possible. The immersion heater element therefore remains clean, as do
the stainless steel heat exchanger pipes in the storage tank water. This means that no scale can build up which would continu-
ously reduce the efficiency of heat transfer in the course of operation (as is the case with other storage tank designs).
The thermal and pressure expansion and high flow rates in the domestic water heat exchanger release any possible scale deposits,
which are then flushed away.
Economical operation
The full-area heat insulation of the storage tank ensures very low heat losses in use and means that the best use is made of the
heat energy being applied.
Modular extension facility
If the heat output of a single Hot water storage tank is not adequate, you can interconnect several storage tanks.
Electronic control
A control system integrated in the heat generator controls all heating and hot water functions for the direct heating circuit, a
mixed heating circuit which can be connected as an option and a tank charge circuit.
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SCS
: Settings, displays and functions of the solar heating are e.g. carried out by the regulating and pump station RPS3.
–
HYC:
For the connection to a ROTEX heat pump system, the setting and adjustment of the solar heating, in addition to
the control and pump station RPS3, via the controller integrated in the heat pump.
