3 x Product description
FA ROTEX Solaris RPS4 - 06/2015
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3.2 Brief description
The ROTEX solar system is a thermal solar system for supplying
hot water for consumption and solar support.
Mode of operation
The high-performance flat solar panels Solaris V21P, V26P and
H26P convert the sun's radiation into heat with a high level of ef-
fectivity. Hereby, the heat transport media is normal tap water.
As soon as the solar collectors have reached a useful temper-
ature level, the water of the heating jacket in the storage cylinder
(which is not under pressure) is pumped directly through the
collectors. With insufficient collector temperature, the circulation
pump is switched off and the system is drained automatically.
This operating mode has several advantages:
– High operational reliability, as there are no components that
could be damaged or fail (such as expansion vessel, safety
valve, venting valves, etc.).
– Excellent heat transfer and heat storage capacity (system
works without antifreeze agents).
– Minimum maintenance requirements.
– Frost proof.
– Without separate solar heat exchanger.
– No stagnation problems.
Modular design
The system consists of several preassembled modules. Plug-in
technology and a high degree of pre-assembly ensure fast and
simple system installation.
Storage tank
The following storage tanks can be used for the ROTEX solar
system:
– ROTEX Sanicube Solaris (SCS): Thermally insulated, de-
pressurised plastic storage tank (with connection facility for a
ROTEX condensing boiler).
– ROTEX Hybridcube (HYC): Thermally insulated, de-pressur-
ised plastic storage tank (with connection facility for a ROTEX
air-water heat pump).
– ROTEX GCU compact: Solar storage tank with integrated gas
condensing boiler.
– ROTEX HPSU compact: Solar storage tank with integrated
indoor unit of as air-water heat pump.
Electronic control
The fully-electronic ROTEX Solaris R4 controller ensures op-
timum solar heat exploitation (hot water heating, heating support)
and compliance with all operational safety aspects.All param-
eters needed for trouble-free operation have been preset at
factory.
3.3 System components
3.3.1 Control and pump unit RPS4
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The ROTEX Control and pump unit RPS4 can only be
installed and operated in the depressurised ROTEX
Solaris System (DrainBack) using the installation mate-
rial provided for the purpose.
The prerequisite for problem-free operation in the
DrainBack system, is that the connection lines are
routed with a constant gradient (at least 2 %), and that
the bottom edges on the solar panels with double-sided
connections are mounted with a constant gradient to
the return connection, or, with same side connection,
are mounted horizontally.
The layout, function, commissioning and operation of
other Solaris components are not described in this
instruction manual. Detailed information about the com-
ponents can be seen in the operating and installation
instructions of the individual units.
The handling instructions and descriptions listed in this
manual apply fundamentally to all ROTEX storage
tanks used in this solar system, even if just one type is
described (e.g. SCS) for representative purposes. In
the event of deviations from other storage tanks, a sep-
arate note is provided.
Consists of:
1 Cover
2 Connection piping with circulation pump and solar operating pump
3 ROTEX Solaris R4 controller with storage tank temperature sen-
sor, return temperature sensor, connection cable, solar panel tem-
perature sensor FlowSensor, connection cable 230 V-mains
connection (3 m)
4 Accessories pocket (6 fixing screws, 2 plastic plugs, 2 locking
screws, plug fitting and gasket)
5 Mounting material (retaining bracket for pump mounting, holding
bar and fixing bracket for controller)
6 Solaris documentation
Fig. 3-2 Control and pump unit(RPS4)
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