Rotex Solaris RPS3 P2 Specification sheet

For the qualified installer
SOLARIS R3
P2
P1
T
V
T
S
T
R
T
K
-
+
ok
007.1601149
Herstell-Nr.:A#:
Elektroheizstab
6kW
V=500l
24l
93kg
593kg
korrosionsbest‰ndig
1,4kWh
T=85∞C
max
WarmwasserspeicherSanicubeSolarisINOX
Typ:SCS538/16/16
Speichervolumen:
Trinkwasser-Nenninhalt:
Leergewicht:
Gesamtgewicht:
Korrosionsschutz:
Bereitschaftsw‰rmeaufwand
in24Stundenbei60∞C
max.zul‰ssige
Speichertemperatur:
max.zul‰ssigerBetriebsdruckim
-Edelstahl-W‰rmetauscher:
Dauerleistung(DIN4708):
Leistungskennzahl(DIN4708):
(abermaximalLadeleistung)
Speicher65∞C,Kaltwasser10 ∞C,
Warmwasser45∞C,Ladeleistung45kW
-Zwischenmedium:
p=10bar
m
ax
drucklos
Q
N =45kW
N=2,8
L
454297
454297XXXXXXXXX
164517-000
Sanicube
Solaris
ROTEX Solaris RPS3 P2
Pressurised solar system
Operating and installation manual
Valid for the following components
ROTEX Solaris unit version from 3.0
Solaris R3P differential temperature control system
Sanicube Solaris and HybridCube storage tank
Serial number
Customer
GB
Issue 06/2012

2FA ROTEX Solaris RPS3 P2 - 06/2012
Guarantee and conformity
Guarantee conditions
The legal guarantee conditions fundamentally apply. Our warranty conditions beyond that can be found online on your sales
presentative's webpage.
Declaration of conformity
for the Solaris RPS3 P2 pressurised solar system used in conjunction with pressure station RDS1.
We, ROTEX Heating Systems GmbH, declare under our sole responsibility that the products
Product Order No. Product Order No.
Solaris RPS3 P2 16 41 13 ROTEX RDS1 16 20 30
complies, in its standard design, with the following European Directives:
2004/108/EC Electromagnetic Compatibility 2006/95/EC EC Low Voltage Directive
Güglingen, 01.08.2009 Dr Eng. Franz Grammling
Managing Director

List of contents
3
FA ROTEX Solaris RPS3 P2 - 06/2012
1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Refer to the manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Warning signs and explanation of symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Avoid danger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5 Instructions for working safely . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Product description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Design and components of the solar system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Brief description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 System components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 System concepts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Installing control and pump unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3 Installing pressure station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4 Installing plate heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.5 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5.1 Solar panel circulation pump at RDS1 pressure station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5.2 Solaris RPS3 P2 control and pump unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.5.3 Installing temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.6 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.6.1 Installing FlowSensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.6.2 Installing FlowGuard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.6.3 Connecting multiple Sanicube hot water tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4 Start-up and taking out of service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1 Initial start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1.1 Fill solar panel circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1.2 Filling storage tank circuit (system without FlowSensor). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.1.3 Filling storage tank circuit (system with FlowSensor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.2 Taking out of service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.2.1 Temporary shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.2.2 Permanent decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.1 Operating and display components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.2 Operation of control systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.2.1 Pump operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.2.2 Switch-on lock-out function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.2.3 Manual operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.2.4 Solaris FlowSensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.2.5 Output calculation, maximum values and yield count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.2.6 Speed control of the P1 tank circulation pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.2.7 Global reset function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.2.8 Frost protection function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.2.9 Leak protection function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.3 Setting and menu operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.3.1 Start display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.3.2 Operating display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.3.3 Settings menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.3.4 Password input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.3.5 Language selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.3.6 Setting and resetting parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.3.7 Manual setting of pump speed control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.3.8 Correction values for measuring points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.3.9 Burner inhibit contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

List of contents
4FA ROTEX Solaris RPS3 P2 - 06/2012
5.4 Recommended settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
5.4.1 Standard parameter settings, recommended setting ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.4.2 Additional settings for your solar system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.4.3 Recommended setting for supplementary heating with external heat sources or the electric immersion heater,
burner inhibit contact. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.4.4 Tips for optimised user behaviour. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
5.4.5 Domestic water hygiene. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6 Faults and malfunctions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.1 Display of events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7 Hydraulic system connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
8 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
8.1 Basic data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
8.2 Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
9 List of keywords. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

1 xSafety
5
FA ROTEX Solaris RPS3 P2 - 06/2012
1Safety
1.1 Refer to the manual
This manual is intended for authorised and trained technicians who have experience of the proper installation and commissioning
of heating systems on account of their technical training and knowledge.
All activities required for installation, commissioning, operation, and adjustment of the heating system are described in this
manual. For detailed information on the equipment connected to your heating system, please refer to the corresponding manuals.
Please read this manual carefully and thoroughly before proceeding with the installation and initial start-up or modification of the
system.
Relevant documents
The documents listed below are a part of the technical documentation of the ROTEX solar system and must also be taken into
consideration. The documents are included in the scope of supply.
– Domestic hot water storage tank (ROTEX Sanicube, HybridCube, GasSolarUnit): operating and installation instructions.
– Solar panels: the installation instructions included for the applicable installation type.
When connecting to an external heat generator or storage tank which is not included in the scope of delivery, the individual
associated operating and installation instructions apply.
1.2 Warning signs and explanation of symbols
Meaning of the warnings
Warnings in this manual are classified according into their severity, the danger and the probability of occurrence.
Special warning signs
Some types of danger are indicated by special warning signs.
Order number
Notes related to order numbers are identified by the shopping cart symbol .
DANGER!
Draws attention to imminent danger.
Disregarding this warning can lead to serious injury or death.
WARNING!
Indicates a potentially dangerous situation.
Disregarding this warning can result in serious injury or death.
CAUTION!
Indicates a situation which may cause possible damage.
Disregarding this warning may cause damage to property and the environment.
This symbol identifies user tips and particularly useful information, but not warnings or hazards.
Electrical current Danger of burning or scalding
Materials that are irritants or can damage
your health Risk of environmental damage

1 xSafety
6FA ROTEX Solaris RPS3 P2 - 06/2012
Handling instructions
• Handling instructions are shown as a list. Actions of which the sequential order must be maintained are numbered.
ÎResults of actions are identified with an arrow.
1.3 Avoid danger
ROTEX solar systems are constructed to the state of the art and recognised laws of technology. However, improper use may
result in serious physical injuries or death, as well as property damage. To avoid any danger, only install and operate your
ROTEX solar system:
– as stipulated and in perfect condition,
– with an awareness of safety and the hazards involved.
This assumes knowledge and use of the contents of this manual, of the relevant accident prevention regulations as well as the
recognised safety-related and occupational health rules.
1.4 Intended use
The ROTEX solar system may only be used for providing solar heating support to domestic hot water heating systems. The
ROTEX solar system may only be installed, connected and operated in accordance with the specifications of this manual.
Any other use outside the above-mentioned use is considered as improper. Responsibility for any resulting damage will be borne
by the user/owner alone.
Intended use also includes the observance of maintenance and inspection conditions. Replacement parts must at least satisfy the
technical requirements defined by the manufacturer. This is the case, for example, with genuine spare parts.
1.5 Instructions for working safely
Working on the roof
• Installation work on the roof may only be carried out by authorised and trained persons (heating technicians, roofers, etc.)
under observance of the relevant Accident Prevention Regulations.
• Material and tools must be secured against falling.
• Barriers must be erected to prevent persons from entering the area below the roof where the work is being carried out.
• Observe safety clearances to overhead lines at the installation location.
Before working on the heating system
• All work on the heating system (such as installation, connection and commissioning) may only be carried out by authorised
and trained heating technicians.
• Switch off the main switch and secure it against unintended switching on when carrying out any work on the heating system.
Electrical installation
• Electrical installation should only be carried out by qualified electrical engineers observing the technical electrical guidelines
and regulations of the relevant electric power supply company.
• Before connecting to the mains supply, check that the voltage specified on the type label of the heating system
(230 V, 50 Hz) is the same as the available supply voltage.
Instruct the owner
• Before you hand over the heating system, explain to the user/owner how to operate and check the heating system.
The ROTEX solar system can only be operated in conjunction with the RDS1 pressure system, the
Solaris RPS3 P2 control and pump unit, the RPWT1 plate heat exchanger, and the installation materials
intended for it.

2 xProduct description
7
FA ROTEX Solaris RPS3 P2 - 06/2012
2 Product description
2.1 Design and components of the solar system
1 Cold water connection pipe
2 Drinking water (hot) distributor
3 Stainless steel corrugated heat exchanger for
domestic water (hot)
4 Corrugated stainless steel pipe for heat exchanger
to heat generator (storage tank charging)
5 Immersion sleeve for storage tank temperature
sensor
6 Fill level display
7 Filling and draining cock (customer)
(accessory 16 41 17)
8 Differential temperature control
9 Solar return line (bottom of the solar panel)
10 Solar panel field
11 Solar flow line (top of solar panel)
12 Thermostatic mixer valve (consumer-side
scalding protection)
13 Gravity break*
14 Solar flow layered pipe
15 Corrugated stainless steel heat exchanger for
heating support
16 Thermal insulation of stainless steel heat
exchanger for heating support
17 Connection solar return flow
18 Immersion sleeve for solar return flow
temperature sensor
19 Safety overflow connection
I Double-sided connection for 2 to 5 solar panels
II Same-side connection for 2 or max. 3 solar
panels (not for inroof)
A Zone with water for domestic use
B Solar zone
C Heating support zone
FLS20
Solaris FlowSensor (flow metering)*
PS1 Tank circulation pump
PS2 Solar panel circulation pump
RDS1 Pressure station
RPS3 P2
Control and pump unit
RPWT1
Plate heat exchanger
tKSolar panel temperature sensor
tVSolar flow temperature sensor
tS,R Solar return flow temperature sensor
tWW Domestic hot water temperature sensor
* Accessories
Fig. 2-1 Standard installation of a ROTEX solar system (ROTEX recommends the two-way connection)

2 xProduct description
8FA ROTEX Solaris RPS3 P2 - 06/2012
2.2 Brief description
The ROTEX solar system is a thermal system for generating hot water and heating support.
Mode of operation
The V21P, V26P and H26P high-performance flat solar panels convert the sun's radiation into heat with high efficiency. The heat-
transfer medium in the solar panel system is a frost-proof water-glycol mixture, and tap water in the tank circulation system.
As soon as the solar panels have reached a useful temperature level, the liquid in the panel system is pumped through the pressure
station and the plate heat exchanger. The feed pump of the Solaris RPS3 P2 control and pump simultaneously pumps the
unpressurised buffer water in the domestic hot water storage tank through the plate heat exchanger where it absorbs the heat
given off by the solar panel circuit.
Modular design
The system consists of several mainly pre-assembled modules. Plug-in technology and a high degree of pre-assembly ensure fast
and simple installation.
Storage tank
The following can be used as storage tanks for the ROTEX solar system:
– ROTEX Sanicube Solaris: Thermally insulated, non-pressurised plastic storage cylinder.
– ROTEX Hybridcube: Thermally insulated, non-pressurised plastic storage cylinder.
– ROTEX Gas Solar Unit (GSU): Sanicube Solaris with integrated gas condensing boiler.
Electronic control
The fully-electronic control on the Solaris RPS3 P2 control and pump unit provides optimum utilisation of solar heat energy
(hot water heating, heating support) and compliance with all operating safety aspects. All parameters needed for trouble-free
operation have been preset at the factory.
2.3 System components
Control and pump unit RPS3 P2
Construction, operating principle, commissioning, and operation of the storage tank are not described in this
manual. You will find detailed information on the storage tanks in their respective installation and operating
manuals.
RPS3 P2 ( 16 41 13)
Consists of:
–Cover
– Connection piping with circulation pump
– Control and pump unit RPS3 P2 with storage tank
temperature sensor, return flow temperature sensor,
connection cable solar panel temperature sensor,
connection cable 230 V mains (3 m)
– Accessory bag (4 fillister screws, 4 washers, 3 locking
screws)
– Solaris documentation
Fig. 2-2 Control and pump unit RPS3 P2

2 xProduct description
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FA ROTEX Solaris RPS3 P2 - 06/2012
RDS1 pressure station
RPWT1 plate heat exchanger
APWT1 connector kit for RPWT1 plate heat exchanger
RDS1( 162030)
Pressure station including connection piping with Grundfos Solar
25-65 circulation pump, flowmeter with 2x KFE cocks,
integrated air separator, safety group with pressure gauge,
installation accessories.
Fig. 2-3 RDS1 pressure station
RPWT1 ( 16 20 31)
For connecting the RDS1 pressure station to an unpressurised
hot water storage tank.
– Heat output 6 kW.
– For pressurised solar systems with up to 5 solar panels.
Fig. 2-4 RPWT1 plate heat exchanger
APWT1 ( 16 20 32)
For hydraulic connection of the RPWT1 plate heat exchanger
to the unpressurised tank circulation system of the hot water
storage tank.
Consists of:
– Connection fittings.
– Insulated VA 15 solar / VA 18 solar-solar pipe.
Fig. 2-5 APWT1 connector kit

2 xProduct description
10 FA ROTEX Solaris RPS3 P2 - 06/2012
2.4 Accessories
FLS20 FlowSensor
FLG FlowGuard
Diaphragm expansion vessel
Filling and draining cock (KFE) for Solaris RPS3 P2
FLS20 ( 16 41 02)
For measuring the flow volume and the feed temperature.
Consists of:
– FLS20 FlowSensor.
– 3 m cable (ready to plug in).
–2xseals.
Fig. 2-6 FLS20 FlowSensor supplied with 3 m cable
FLG ( 16 41 07)
For regulating the flow volume.
Consists of:
– FLG FlowGuard.
–2xseals.
Fig. 2-7 FLG FlowGuard
MAG S 25 ( 16 20 50)
For ROTEX Solaris pressure systems with up to 3 solar panels.
– Diaphragm expansion vessel 25 l.
– Cap valve, connector pipe, installation material.
MAG S 35 ( 16 20 51)
For ROTEX Solaris pressure systems with up to 5 solar panels.
– Diaphragm expansion vessel 35 l.
– Cap valve, connector pipe, installation material.
Fig. 2-8 Diaphragm expansion vessel MAG S 25/35
16 41 17
Bild 2-9 KFE-cock
MAG 25 MAG 35

3 xInstallation
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3 Installation
3.1 System concepts
ROTEX solar systems are normally installed in accordance with the system concepts shown in the following. This also includes
the possibility of connection on the opposite side of the flat solar panels in each case.
3.2 Installing control and pump unit
The high-output flat solar panels can be mounted on different types of roofs. For more information on
installation of solar panels see:
– Pitched roof V21P/V26P/H26P: on-roof installation instructions for solar panels.
– Flat roof V21P/V26P/H26P: installation instructions for the solar panel flat roof support frame.
– In-roof V21P/V26P: in-roof solar panel installation instructions.
Connection at opposite ends possible1) (possible from 1+ solar panels) Same-side installation connection (up to maximum of 3 solar panels)
Fig. 3-1 Two-way connected solar panel field with Sanicube domestic hot
water storage tank (1)ROTEX recommends this connection type)
Fig. 3-2 Solar panel with connections on same side with Sanicube hot water
storage tank
WARNING!
Live parts can cause an electric shock on contact and cause fatal burns and injuries.
• Before beginning maintenance work on the boiler control panel or the solar control system, disconnect
them from the power supply (switch off fuse, main switch) and secure against unintentional restart.
• In order to avoid any danger caused by damaged electrical wiring, always have such wiring replaced by
electrical engineers in compliance with valid standards and guidelines as well as the specifications of the
energy supply company.
• Comply with the relevant safety at work regulations.
The pump unit must be connected to the hot water storage tank before it is filled with water.
If the solar system is connected to a hot water storage tank that is already in operation, then the unpressurized
storage tank section must first be drained.
For information about installing the control and pump unit Solaris RPS3 P2 to an older ROTEX domestic hot
water storage tank, please get in touch with Rotex technical customer support.

3 xInstallation
12 FA ROTEX Solaris RPS3 P2 - 06/2012
1. Remove the handle on the hot water storage tank and unscrew the sealing cap form the solar return connection.
2. Using the previously removed screws from the handle, screw the pump retainer bracket to the top holder of the handle
fastener.
3. Place the pump and the storage tank connection nut on the respective storage tank mounting bracket and secure with
retaining brackets.
4. If an optional combined filling and draining cock (KFE-cock 16 41 17) should be installed in the cylinder connecting
bracket of the preassembled pump group (Image 3-5):
• Remove the retaining clip on the installation side (a).
• Withdraw the blanking plug on the installation side.
• Insert the combined filling and draining cock in the installation side and secure it with the retaining clip again.
5. Fit the preassembled pump unit on the storage tank mounting bracket using the seal provided and screw it to the solar return
connection on the hot water storage tank. To make it easier to fit, the retainer can be clicked into the retainer bracket.
6. Tighten the storage tank connecting nut.
7. Screw the retainer to the retaining bracket (necessary to absorb the forces).
8. Screw the fixing bracket for the control system in position.
9. Install press-fit elbow (Ø 22/Ø 18 mm).
10. Prepare feed line (VA 15 Solar) with sensor cable and return line (VA 18 Solar). Cut open the twin heat insulation in the
middle.
Fig. 3-3 Work step 1 Fig. 3-4 Work step 2 Fig. 3-5 Step 3, 4
Fig. 3-6 Work step 5 Fig. 3-7 Work step 6 Fig. 3-8 Work step 7

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FA ROTEX Solaris RPS3 P2 - 06/2012
Fig. 3-9 Work step 8 Fig. 3-10 Work step 9 Fig. 3-11 Work step 10
11. Adapt the return line as required and
lay separately after cutting the twin
heat insulation.
12. Insert return line into the press-
fitting on the pump outlet pipe.
Fig. 3-12 Work step 11 Fig. 3-13 Work step 12
CAUTION!
In the case of longer pipe runs with only a minimum gradient, it is possible for water pockets with a siphoning
effect to develop due to thermal expansion of the plastic pipes between the mounting points:
• The pipe should be fixed to a rigid structure (e.g. profile rail, pipe etc.).
• Always make sure that pipe runs have a continuous gradient of at least 2 %.

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14 FA ROTEX Solaris RPS3 P2 - 06/2012
3.3 Installing pressure station
• Remove outside cover (1).
• Install the RDS1 pressure station close to the hot water storage tank.
• Connect feed and return line from the solar panels to connections (4) and (5) on the RDS1 pressure station in accordance
with the system plan (see chapter 3.1).
• Connect diaphragm expansion vessel (MAG) to the connection (7) on the RDS1 pressure station.
CAUTION!
If the circulation in the solar panels comes to a standstill, steam may be formed and may damage the
diaphragm expansion vessel (MAG).
• Always install the RDS1 pressure station and the diaphragm expansion vessel (MAG) lower than the solar
panels.
CAUTION!
Danger of scalding if incorrect connection pipes are used.
• Use only connection pipes made of pressure-resistant metal (Cu Ø 22 mm recommended) between the
solar panels and the hot water storage tank. Plastic pipes must not be used.
1 External cover
2 Temperature display Solar return line
3 Temperature display Solar flow line
4 Connection Solar return line (Ø 22 mm)
5 Connection Solar flow line (Ø 22 mm)
6 Safety valve with pressure gauge (solar panel circuit)
7 Connection Diaphragm expansion vessel (MAG) (Ø 22 mm)
8 Circulation pump (solar panel circuit)
9 Filling and draining cock (solar panel circuit)
10 Flow meter (solar panel circuit)
11 Connection pressure station solar flow line to plate heat
exchanger (Ø 22 mm)
12 Connection pressure station solar return line to plate heat
exchanger (Ø 25 mm)
13 Bore holes for wall fixture of pressure station
Fig. 3-14 Connections and dimensions for RDS1 pressure station

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3.4 Installing plate heat exchanger
• Remove outside cover (1).
• Install the RPWT1 plate heat exchanger under the RDS1 pressure station.
• Connect feed and return line from RDS1 pressure station to connections (2) and (3) on the RPWT1 plate heat exchanger.
• Flow and return line (VA 15 Solar / VA 18 Solar), install from Solaris RPS3 P2 control and pump unit and domestic hot water
storage tank to plate heat exchanger.
• Connect the feed and return line (VA 15 Solar / VA 18 Solar) to the RPWT1 the APWT1 plate heat exchanger (connections 4
and 5) with the APWT1 plate heat exchanger connection set.
• Replace outside cover (1).
Installing the clamping ring bolt:
• Cut off the pipe end at right angles and debur.
• Place swivel nut and clamping ring on the pipe.
• Lightly oil threads.
• Push pipe into the clamping ring bolt to the stop and tighten swivel nut by hand.
• Tighten swivel nut with open-ended spanner.
1 External cover
2 Connection pressure station solar return line (Ø 22 mm)
3 Connection pressure station solar flow line (Ø 22 mm)
4 Connection plate heat exchanger flow line to solar flow of
Solaris RPS3 P2 (Cu Ø 22 mm plug-in fitting)
5 Connection plate heat exchanger return line to solar return flow
HybridCube (Cu Ø 22 mm plug-in fitting)
6 Bore holes for wall fixture of plate heat exchanger
Fig. 3-15 Connections and dimensions for RPWT1 plate heat
exchanger
Fig. 3-16 APWT1 connection set ( 16 20 32)

3 xInstallation
16 FA ROTEX Solaris RPS3 P2 - 06/2012
3.5 Electrical connection
3.5.1 Solar panel circulation pump at RDS1 pressure station
3.5.2 Solaris RPS3 P2 control and pump unit
1. Fix the cable supplied to the back of the control system using the edge connectors. The plugs are coded to prevent mixing
them up. The configuration of connections is shown on the lid of the control system.
2. All the cables are routed through the labyrinth to ensure there is stress relief.
3. Screw the 2-pin printed circuit board edge connector to the sensor line pulled in with the inflow and connect it to the control
system.
1. Check the power supply voltage at the house junction box (~230 V, 50 Hz).
2. Disconnect the junction box of the domestic electrical installation.
3. Remove cover on switch casing of solar panel circulation pump.
4. Install control line from solar panel circulation pump to Solaris RPS3 P2 control
and pump unit.
5. Connect control line to solar panel circulation pump.
– Follow the circuit diagram: image 3-17.
6. Install cover on switch casing of solar panel circulation pump.
7. Lay control line in casing of RDS1 pressure station.
8. Replace outside cover on RDS1 pressure station. Fig. 3-17 Electrical wiring of RDS1
circulation pump
Fig. 3-18 Work step 5 Fig. 3-19 Work step 6 Fig. 3-20 Work step 7
CONF Programming socket for software update
FLS FlowSensor
TS Storage cylinder temperature sensor
TR Return flow temperature sensor
TK Collector temperature sensor
BSK Burner inhibit contact
P1/P2 Operation and booster pump
F1 Fuse
Power Mains supply
Fig. 3-21 Connection assignment

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4. Place the control system in the control system retaining brackets from above.
5. Connect the tank circulation pump to the control systems with the cable with the red mark.
6. Connect the control line coming from the solar panel circulation pump to the control systems with the unmarked cable.
7. Lay the cable for the control system along the return line and fix using cable ties.
8. Slide on casing front and align. Slide the casing front under the control system housing to form an even join all around the
control systems.
9. Screw front of casing on both sides to the control systems housing with countersunk screws.
Fig. 3-22 Work step 1 Fig. 3-23 Work step 2 Fig. 3-24 Work step 3
Automatic speed control of the Solaris RPS3 P2 control and pump unit only works if a FlowSensor has been
integrated into the system. Otherwise the tank circulation pump will operate at 100 %.
Fig. 3-25 Basic cabling: Storage tank, return flow, solar panel
sensor, pump and mains lines
Fig. 3-26 Extended cabling additionally with FlowSensor
Fig. 3-27 Work step 4 Fig. 3-28 Work step 5
(see also image 3-17)
Fig. 3-29 Work step 6
(see also image 3-17)

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18 FA ROTEX Solaris RPS3 P2 - 06/2012
3.5.3 Installing temperature sensor
Fig. 3-30 Work step 7 Fig. 3-31 Work step 8 Fig. 3-32 Work step 9
10. Fasten housing front to the tank
connection bracket below. To do
this, carefully screw the self-
tapping fixing screw (scope of
supply) over the depression in the
lower section of the front of the
housing and then place the
protective cap in position.
Fig. 3-33 Work step 10 Fig. 3-34 Assembled Solaris RPS3 P2
CAUTION!
The storage temperature sensor of the boiler control must never be immersed more than 75 cm into the sensor
immersion sleeve. If the storage temperature sensor is immersed any deeper, the hot water zone may overheat
and cause the boiler control to "stick" in the tank heating phase.
Fig. 3-35 Work step 1 Fig. 3-36 Work steps 2 + 3 Fig. 3-37 Work steps 2 + 3
1. Bend contact springs around the two sensors (tank and return sensor and also
storage tank sensor of boiler control) and insert into the probe tube.
2. Align return flow sensor in the probe tube to approx. 130 cm insertion depth
(cable ties).
3. Align storage tank sensor in the probe tube to approx. 70 cm insertion depth
(cable ties).
4. Insert the plug in the probe tube and lay the cable.
Fig. 3-38 Work step 4

3 xInstallation
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3.6 Accessories
3.6.1 Installing FlowSensor
The Solaris FlowSensor FLS20 (image 3-40, 16 41 07), available as an accessory, is a measurement instrument that
records the flow volume in the solar panels and the feed temperature. The measurement range of the FlowSensor FLS20 is
between 0 and 20 l/min (flow volume) and 0 to 120 °C (feed temperature). The measured values are shown in the display of the
Solaris RPS3 P2 control and pump unit. Thanks to the speed control of the tank circulation pump, the Solaris RPS3 P2 control
and pump unit automatically adjusts the passing flow during operation.
1. Place seal (b) on the solar flow connection (a) of the hot water storage tank.
2. Screw FlowSensor (c) to the solar flow connection (a) of the hot water storage tank.
3. Place seal (e) and install press fitting (f) on the outlet of the FlowSensors (c).
4. Insert prepared feed pipe (g) (Ø 15 mm) into the press fitting (f).
5. Lay the FlowSensor cable between the FlowSensor (c) and the control system.
6. Lay cable (i) from solar panel temperature sensor to the control systems.
7. Connect FlowSensor cable to FlowSensor (c) and to the control system printed circuit board edge at position FLS (4-pin, see
image 3-21).
During installation be aware of the flow direction of the measurement instruments.
Fig. 3-39 Installing FlowSensor FLS Fig. 3-40 Accessories for FlowSensor FLS20 supplied with 3 m
cable

3 xInstallation
20 FA ROTEX Solaris RPS3 P2 - 06/2012
3.6.2 Installing FlowGuard
The Solaris FlowGuard FLG (image 3-41, 16 41 02) is also available as an accessory. It is a regulating valve with an
integrated flow volume indicator that can be used to adjust the flow volume through the solar panels. The display range is
between 2 and 16 l/min.
1. Place seal (b) on the solar flow connection (a) of the hot water storage tank.
2. Screw FlowGuard (d) to the solar flow connection (a) of the hot water storage tank.
3. Place seal (e) and install press fitting (f) on the outlet of the FlowGuard (c).
4. Insert prepared feed pipe (g) (Ø 22 mm) into the press fitting (f).
5. Lay cable (i) from solar panel temperature sensor to the control systems.
3.6.3 Connecting multiple Sanicube hot water tanks
The Solaris storage tank extension set is a system of Sanicube connection pipes that enable parallel connection of multiple
Sanicube Solaris to form large systems with and without solar support.
The Solaris storage tank extension kit CON SX ( 16 01 07) allows 2 Sanicube Solaris to be connected for each
Solaris RPS3 P2 control and pump unit (image 3-43).
Operation
– The solar return flow from the RPWT1 plate heat exchanger comes from the solar zone of both storage tanks via the return
flow connection line (image 3-43, item 5).
– Common return flow is pumped to the RPWT1 plate heat exchanger via the Solaris RPS3 P2 control and pump unit
(image 3-43, item 4).
– The water is heated in the RPWT1 plate heat exchanger and flows as the solar inflow through the flow connection line
(two equally long insulated flexible pipes; item 6, image 3-43) into the two storage tanks.
Because the flow volume may differ during suction and inflow of the water circulating in the unpressurised circulation in spite of
equalisation in the two Sanicubes by the two reducing valves (FLG), one of the two Sanicubes may overflow if there is a fault in
a compensation line (image 3-43, item 5). This connection line prevents the level from rising excessively in one storage tank.
Fig. 3-41 Installing FlowGuard FLG Fig. 3-42 FlowGuard accessories
The optionally available ROTEX FlowGuard FLG ( 164102) ensures that both Sanicubes are filled evenly.
This requires installation of one FlowGuard per tank with a common inflow to the FlowSensor.
Observe the system for at least 2 h after connection and adjust the FlowGuard if necessary.