Rotex Solaris Specification sheet

For specialist technical operation
ROTEX Solaris
Solar heating system
Operating and installation
manual
Valid for the following components
ROTEX Solaris Version 3.0 and higher
Solaris R3 temperature difference controller
Sanicube Solaris storage tank
Solaris flat solar panel
Serial number
Customer
GB
Issue 08/2007

Guarantee
2FA ROTEX Solaris - 08/2007
ROTEXaccepts the guaranteeformaterial and manufacturing defects accordingto this statement.Withintheguarantee period,
ROTEX agrees to have the device repaired by a person assigned by the company, free of charge.
ROTEX reserves the right to replace the device.
The guarantee is only valid if the device is used properly and it can be proved that it was installed correctly by a specialist
company. As proof, we strongly recommend completing the enclosedinstallation andinstruction forms and returning them to
ROTEX.
Guarantee period
The guarantee period begins on the day of installation (billing date of the installation company), however at the latest 6 months
after the date of manufacture (billing date). The guarantee period is not extended if thedevice is returned for repairs or if the
device is replaced.
Guarantee period for the controller: 3 years
Guarantee period for the hot water storage tank:3 years
Guarantee period for the solar panels: 5 years
Exclusion of warranty
Improper use, tampering with the device, and unqualified modifications immediately invalidate the guarantee.
Dispatch and transport damage are excluded from the guarantee.
The guarantee explicitly excludes consequential costs, especially the assembly and disassembly costs of the device.
There is no guarantee for wear-prone parts (according to the manufacturer's definition), such as lights, switches, fuses.

Contents
3
FA ROTEX Solaris - 08/2007
1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Refer to the manual. . . . . . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . .. . . . . . . .. . . . . . . . .. . 5
1.2 Warning signs andexplanation of symbols. . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . . . . .. . . . . . . . . . .. . 5
1.3 Danger prevention. . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . . .. . 6
1.4 Intended use . . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . 6
1.5 Instructions for working safely . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . 6
2 Product description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Design and components of the Solaris system. . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . .. . . . . . . . 7
2.2 Brief description . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . 8
2.3 System components . . . . . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . 9
2.3.1 Control and pump unit. . . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . .. . . . . . . .. . . . . . . . 9
2.3.2 Optional Flow controller FlowGuard and Flow controller FlowSensor. . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . . 9
2.3.3 Connection pipes. . . . . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . .. . . . . . . .. . . . . . . . 9
2.3.4 Other mounting accessories . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . . . . .. . . . 10
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 System concepts. . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . . . .. . . . 12
3.2 Installing the control and pump unit. . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . 13
3.2.1 Mounting the pump unit . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . .. . . . . . . . . . .. . . . 13
3.2.2 Installing the sensors . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . 17
3.2.3 Installing the temperature sensor . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . . . . . . . . .. . . . .. . . . . . . 18
3.3 Installing the connection pipes. . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . .. . . . . . . . .. 19
3.3.1 Fitting the connection pipe to the solar panel . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . . . . .. . . . 19
3.3.2 Connect several Sanicube hot water storage tanks. . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . .. . . . . . . . .. 20
3.3.3 Installing the common return flow pipe . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . 21
3.4 Installing the solar panel components . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . .. . . . . .. . . . 22
3.4.1 Installing the supporting structure for subsequent installation on the roof. . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . 23
3.4.2 Installing the supporting structure for subsequent installation on a flat roof . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . .. . . . . . . 27
3.4.3 Installing the supporting structure for subsequent in-roof installation . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . .. . . . . . . .. . . . 27
3.4.4 Installing the first solar panel . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . . . . .. . . . .. . . . . . . 27
3.4.5 Installing the other solar panels. . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . . . . .. . . . 28
3.4.6 Installing the equipotential bondingterminal . . . . .. . . . .. . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . . . . . .. . . . . . . .. . . . . . . 30
3.4.7 Running the connection pipes and solar panel temperature sensor cable through the roof . . . . . . . . . . . . . .. . . . . . . . . . .. . . . 30
3.4.8 Installing the solar panel temperature sensor. . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . . .. . . . . . . .. . . . . . . . .. 33
3.4.9 Uninstalling the solar panels . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . .. . . . . . . 34
3.4.10 Additional notes about connection pipes . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . . . . .. . . . 34
4 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.1 Operating Solaris systems without a FlowSensor . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . .. . . . . . . .. . . . . . . 35
4.2 Operation of Solaris systems with a FlowSensor. . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . .. 36
5 Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.1 Operating and display elements. . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . . . . .. . . . 38
5.2 Controller operating principle. . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . . .. 38
5.2.1 Pump operation. . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . 38
5.2.2 Booster function for highsolar panel temperatures. . . . .. . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . . . . . .. . . . . . . .. . . . . . . 39
5.2.3 Switch-on inhibit function. . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . .. . . . . . . . .. 39
5.2.4 Pump kick function. . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . . .. 39
5.2.5 Manual operation .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . . .. 39
5.2.6 Solaris FlowSensor. . . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . 40
5.2.7 Output calculation, maximum values and yield count. . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . . . . .. . . . 40
5.2.8 Speed control of circulation pump P1 . .. . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . . . . . .. . . . . . . .. . . . . . . 40
5.2.9 Overall reset function . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . 41
5.2.10 Frost protection function . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . 41
5.2.11 System leakage protection function . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . .. . . . 41

Contents
4FA ROTEX Solaris - 08/2007
5.3 Adjustments and menu guidance. . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . .. . . . . . . .. . .42
5.3.1 Display during start-up. . . . . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . .. . . . .. . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . .. . . . . .42
5.3.2 Display during operation. . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . .43
5.3.3 Set-up menu . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . .43
5.3.4 Password protection . . . . . . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . .. . . . .. . . . . . . .. . . . . .45
5.3.5 Language selection . . . . . . . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . .. . . . . . . .. . .46
5.3.6 Adjusting and resetting parameters . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . .. . . . . . . .. . . . .. . .46
5.3.7 Burner inhibit contact . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .46
5.3.8 Manual adjustment of pump speed control. . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . . . . .. . . . . . ..46
5.3.9 Correcting valuesfor measurement points . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . .46
5.4 Recommended settings. . . . . . . . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . .. . . . . . . .. . .47
5.4.1 Standard parameter values, recommended adjustment ranges . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . .. . . . . . . .47
5.4.2 Other adjustments of your Solaris system . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . .. . . . . . . .. . . . . . . .47
5.4.3 Recommended settings for auxiliary heating via external heat sources or the electric heater, burner inhibit contact . . . . . . . . . .48
5.4.4 Tips for optimised user behaviour. . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . .49
5.4.5 Domestic water hygiene. . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . .49
6 Faults and disturbances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.1 isplay of events . . . . . . . . . . . . . . . . . . . .. . . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .50
6.2 Troubleshooting . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . .. . . . . . . .. . . . . .51
7 Hydraulic system integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
8 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
9 List of keywords. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

1 xSafety
5
FA ROTEX Solaris - 08/2007
1Safety
1.1 Refer to the manual
This manual is intended for authorised and trained technicians who have experience with the proper installation and commis-
sioning of heatingsystems onaccount oftheir technical training and knowledge.
All activities required for installation, commissioning, operation and adjustment of the heating system are described in this
manual.Fordetailedinformationon theequipmentconnectedto yourheatingsystem,pleaserefertothe correspondingmanuals.
Please read this manual carefully and thoroughly before proceeding with the installation and commissioning of the heating
system.
Relevant documents
The documents listed below arepart of the technical documentation of the ROTEX Solaris system and must also be observed.
The documents areincluded in the scope of supply.
– ROTEX Solaris: Instruction manual for the operator.
1.2 Warning signs and explanation of symbols
Meaning of the warnings
The warnings areclassified in this manual accordingto their severity and 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 cart symbol .
Handling instructions
• Handling instructions are shown as a list. Actions during which the sequential order must be maintained are numbered.
ÎResults of actions are identified with an arrow.
DANGER!
Indicates a direct threat of danger.
Disregarding thiswarning 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 possibly damaging situation.
Disregarding this warning can lead to damage to property and the environment.
This symbol identifies user tips and particularly useful information, but not warnings or hazards.
Risk of burning or scalding. Electric power

1 xSafety
6FA ROTEX Solaris - 08/2007
Validity
Some of theinformation in this manual only applies/does not apply for certain devices. Validity is indicated by the following
symbols:
1.3 Danger prevention
ROTEX Solaris systems are built in accordance with the state of the art and generallyaccepted engineering practice. However,
improper use can lead to serious injuries or death, as well as causingmaterial damage. To avoiddanger, ROTEX systemsshould
only be installed and operated:
– As stipulated, and in perfect conditions,
– With an awareness of safety and possible dangers.
This presumes knowledge and application of the informationgiven in this manual, as well as the relevant accident prevention
regulations and the accepted rules on safety and occupational health.
1.4 Intended use
TheROTEX Solarissystemmay only be usedforsolar-supportedheatingof hot water systems.The ROTEX Solarissystemmay
only be installed, connected, and operated in accordance with the instructions given in this manual.
Anyuseotherthandefinedaboveisconsideredasnon-intended(incorrect).Theownerwillbesolelyresponsibleforanyresulting
damage.
Intended use also includes the observance of maintenanceand inspection specifications. Spare partsmust at least satisfy the
technical requirements defined by the manufacturer. This is the case, for example, with original spare parts.
1.5 Instructions for working safely
Working on the roof
• Installation work on theroof 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 from falling off.
• Barriers must be erected to prevent persons from entering the area below the roof where the work is being carried out.
Before working on the heating system
• All work on the heating system (such as installation, connection, and commissioning) may only be carried outby authorised
and trained heating technicians.
• Switch off the mains supply before starting any work on the heating system, and secure it against unintentional switch-on.
Electrical installation
• Electrical installations may only becarried out by qualified electrical technicians under observance of the relevant electrical
guidelines and the regulations of the electric utilities 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.
Instructing the user/owner
• Before you hand over the heating system, explain to the user/owner how to operateand check the heating system.
• Make a record of thehandover by filling out and signing theinstallation and instruction forms together with theuser/owner.
Valid for ROTEX GasSolarUnit GSU Not valid for ROTEX GasSolarUnit GSU
Valid for ROTEX E-SolarUnit ESU Not valid for ROTEX E-SolarUnit ESU
Valid for ROTEX Sanicube Solaris SCS Not valid for ROTEX Sanicube Solaris SCS

2 xProduct description
7
FA ROTEX Solaris - 08/2007
2 Product description
2.1 Design and components of the Solaris system
Fig. 2-1 Standard design of a ROTEX Solaris system (ROTEX recommends a two-way connection)
1Cold water connection pipe
2Domestic water (hot) distributor
3Stainless steel corrugated pipe heat exchanger for domestic water (hot)
4Stainless steel corrugated pipe heat exchanger for generating heat
(storage tank charging)
5Immersion sleeve for storage tank temperature sensor
6Fill level display
7Filling and draining cock
8Solaris R3 differential temperature control
9Solar return flow pipe (at the bottom of the solar panel/VA 18 Solar)
10 Solaris solar panel array
11 Solar feed pipe (at the top of the solar panel/VA 15 Solar)
12 Thermal mixer valve (prevents scalding; installed by the customer)
13 Anti-siphon valve
14 Solaris feed multilayer pipe
15 Stainless steel corrugated pipe heat exchanger for heating support
16 Insulating hose sleeve for stainless steel corrugated pipe heat exchanger
for heating support
17 Solaris return flow connection
18 Immersion sleeve for Solaris return flow temperature sensor
19 Equipotential bonding terminal cable connection (with valve attachment)
for storage tank extension
20 Safety overflow connection
ITwo-way connection for 2 to 5 solar panels
II One-way connection for 2, max for 3 solar panels (not for in-roof)
AArea with water for domestic use
BSolar area
CHeating support area
TR Solaris return flow temperature sensor
TS Solaris storage tank temperature sensor
TK Solaris solar panel temperature sensor
TV Solaris feed temperature sensor
RPS3Control and pump unit
FLS Solaris flow sensor (flow rate measurement) or Solaris FlowGuard
(flow rate setting)
PS1 Solaris circulation pump
PS2 Booster pump

2 xProduct description
8FA ROTEX Solaris - 08/2007
2.2 Brief description
The ROTEX Solaris system is a thermalsolar system for supplying hot water for consumption andheating support.
Method of operation
Thehigh-performanceSolarisflatsolarpanels, typesV21A, V26A andH26Aconvertthesunlightintoheat with highefficiency.
Hereby, the heat transport media is normal tap water.
As soon as the solar panels have reached a useful temperature level, the water of the heating jacket in the storage tank (which
isnotunderpressure)ispumpeddirectlythroughthesolarpanels.Withinsufficientsolarpaneltemperature,thecirculationpump
is switched off and the system is drained automatically. This method has several advantages:
– Highoperationalreliability,asnocomponentsthatcouldbedamaged(suchasexpansionvessel,safetyvalve,ventingvalves,
etc.).
– Excellent heat transfer and heat storage capacity (system works without antifreeze agents).
– Minimum maintenance requirements.
– Frost proof.
– Without separate solar heat exchanger.
Modular design
The system consists of severalpreassembled modules. Plug-in technologyand a high degree of pre-assembly ensure fast and
simple system installation.
Storage container
The following storage containers can be used for the ROTEX Solaris system:
– ROTEX Sanicube Solaris: Thermally insulated, non-pressurised plastic storage tank.
– ROTEX Gas Solar Unit (GSU): Sanicube Solaris with integrated gas condensing boiler.
– ROTEX E-Solar Unit (ESU): Sanicube Solaris with integrated electric water heater.
Electronic control
The fully electronic control unit ROTEX Solaris R3 ensures optimum utilisation of the solar heat (hot consumption water
generation, heating support) as well as the observance of all safety-relevant aspects. All parameters needed for trouble-free
operation have been preset at the factory.
Construction,operatingprinciple,commissioningandoperationofthestoragecontainerarenotdescribedinthis
manual. Detailed information on the storage containers is given in the manuals of the respective units.

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2.3 System components
2.3.1 Control and pump unit
2.3.2 Optional Flow controller FlowGuard and Flow controller FlowSensor
2.3.3 Connection pipes
CON A and CON R
Fig. 2-2 Scope of supply for pump and control unit (RPS3) ( 16 41 06)
1Cover
2Connection pipe with circulation pump, booster pump, filling and draining cock
3ROTEX Solaris R3 differential temperature control with storage tank temperature sensor, return flow temperature sensor, solar panel
temperature sensor connection cable, connection cable for 230 V mains supply (3 m)
4Accessories case (4 cheese head screws, 4 washers, 3 safety screws)
5Solaris documentation
Fig. 2-3 Flow controller and flow sensor (scope of supply)
1FlowGuard ( 16 427)
2FlowGuard seal 3FlowSensor ( 16 41 07) 4FlowSensor seal
Installation-ready connection pipes between solar panel array
and pump control unit RPS3, consisting of thermally insulated
feed and return pipes with integrated sensor cable,
Pt 1000 solar panel sensor, installation fittings and roofducts
for two-way connection.
Anthracite connection pipe (CON A) ( 16 42 11)
Red connection pipe (CON R) ( 16 42 12)Fig. 2-4 CON A and CON R (optional)

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CON F
CON I
CON SX
2.3.4 Other mounting accessories
Solar panel mounting rails
Solaris connection pipe (16 47 13) for
flat roof installation Fig. 2-5 CON F (optional)
Solaris connection pipe ( 16 46 10)for
in-roof installation Fig. 2-6 CON I (optional)
Solaris storage tank extension set ( 16 01 07):
for connecting two SanicubeSolaris storage tanks,
consisting of a return flow connection pipe and
feed connection pipe. Fig. 2-7 CON SX (optional)
FIX-100 ( 16 42 24):
– Two mounting rails for a V21A solar panel
FIX-130 (16 42 25):
– Two mounting rails for a V26A solar panel
FIX-200 (16 42 26):
– Two mounting rails for one H26A solar panelor
two V21A solar panels
FIX-260 (16 42 27):
– Two mounting rails for two V26A solar panels Fig. 2-8 Solar panel mounting rails

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Rail connector FIX-VB
Solaris flat solar panels V21A, V26A and H26A
CON V
FIX-AD
Profile connector ( 16 42 22)for connecting the
mounting rails:
– Splicing plate (2x)
– Allen wrench
– Fixing screws (4x) Fig. 2-9 Rail connector FIX-VB
V21A Solar panel ( 16 43 06):
– H x B x D: 2000 x 1006 x 95 mm, weight: approx.34 kg
V26A Solar panel ( 16 43 04):
– H x B x D: 2000 x 1300 x 95 mm, weight: approx.41 kg
H26A solar panel ( 16 43 05):
– H x B x D: 1300 x 2000 x 95 mm, weight: approx.44 kg Fig. 2-10 Solaris flat solar panel (V26A shown here)
Solar panel connection kit ( 16 42 13)for
immediate connection of an additional solar panel, incl.
installation material for attaching a pair of solarpanels Fig. 2-11 Solar panel connection kit CON V
Kit for installing a solar panel on the roof
(16 47 00)
– Roof ties (4x)
– Wood screws (Ø8 x 6 mm, 8x) Fig. 2-12 On-roof mounting kit FIX-AD

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3 Installation
3.1 System concepts
ROTEX Solaris installations are usually built according to oneof the following system concepts.
Fig. 3-1 Solaris solar panel array with connections on same side,
and Sanicube storage tank Fig. 3-2 Solaris solar panel array with connections on same side, and Gas Solar Unit (or E-Solar Unit)
Fig. 3-3 Solaris solar panel array with connections on opposite sides,
and Sanicube storage tank Fig. 3-4 Solaris solar panel array with connections on opposite sides, and Gas Solar Unit (or E-Solar Unit)

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3.2 Installing the control and pump unit
3.2.1 Mounting the pump unit
1. Remove the storage tank handle andunscrew the sealing cap of the Solaris return flowconnection.
2. Use the previouslyremoved handle screws to attach thepump holding bracket to the upper plastic inserts of the handle
fixture.
3. Attach each pump and storage tank coupling nut to thestorage tank coupling bracket and secure using retainers.
4. Insert the filling & draining cock on the desired side and secure it using aretainer.
5. Insert a blind plug in the opposite side to the filling & draining cock and secure using a retainer.
WARNING!
Live parts can cause an electric shock on contact and cause fatal burns and injuries.
• Before beginning work on live parts, disconnect them from the power supply (switch off fuse, main
switch) and secure against unintentional restart.
If the RPS3 control andpump unit is to be fitted to an older storage container, thiscan be done by using the
threaded plastic inserts (Wellnut) included in delivery.Use the template on the packaging (see Fig. 3-5) todrill
the two mounting holes (Ø7.5 mm). The two smaller holes at the top edge are the mounting holes, whilst the
slightlylargerholeat thebottomedgeservestoadjustthetemplate.Theexactdimensionsaregivenin Fig. 3-6.
– Note: The holes must not be deeper than 15 mm!
Fig. 3-5 Drilling template Fig. 3-6 Pitch of the holes
Fig. 3-7 Step 1 Fig. 3-8 Step 2 Fig. 3-9 Step 3

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6. Push the two pumps together and secure using a retainer.
7. Mountthepreassembledpumpunitonthestoragetankcouplingbrackettogetherwiththesuppliedsealandscrewontothe
solar return flow coupling of the storage tank. Mounting is simplified if the retainer is snapped into place in the holding
bracket.
8. Tighten the storage tank coupling nut. Use thesickle spanner (includedin scope of supply) to do this.
9. Screw the retainer to the holding bracket (necessary to withstand forces).
10. Mount the support bracket for the control unit.
11. Mount the push-in elbow fitting (Ø22/Ø18).
12. Preparethefeedpipe usingthesensorcable(VA15Solar)and return flow pipe(VA18Solar). Cut theTwinheatinsulation
open in the middle.
Fig. 3-10 Step 6 Fig. 3-11 Step 6
Fig. 3-12 Step 7 Fig. 3-13 Step 8 Fig. 3-14 Step 9
Fig. 3-15 Step 10 Fig. 3-16 Step 11 Fig. 3-17 Step 12

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13. Fit the return flow pipe and install it separately after parting the Twin heat insulation.
14. Insert the pre-bent return flow pipe into the push-in fitting of the pump coupling.
Preparing and installing the control unit
1. Plug the edge connectors of the supplied control cables to the circuit board at the rear of the controlunit. The connectors
are coded to prevent errors. A connecting diagram is provided in the control unit cover.
2. To ensure reliable tension relief, all cables should run through the labyrinth.
3. Attach the supplied 2-pole edge connector to the sensor cable (preinstalled with the feed pipe) and plug it into the
control unit.
Fig. 3-18 Step 13 Fig. 3-19 Step 14
Fig. 3-20 Terminal assignment
CONF Programming connector for control unit
update
FLS Flow sensor
TS Storage tank temperature sensor
TR Return flow temperature sensor
TK Solar panel temperature sensor
BSK Burner inhibit contact
P1/P2 Operation and booster pump
F1 Fuse
Power Mains supply
Fig. 3-21 Step 1 Fig. 3-22 Step 2 Fig. 3-23 Step 3
The automatic speed regulation of the control and pump unit can only work if a FlowSensor is included in the
system. If not, the circulation pump will run continuously at 100%.

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4. Insert the control unit into its support bracket from above.
5. Connectthecablestotheboosterandthecirculationpumps.Thecablewithredmarkinggoestothelower(circulation)pump
and the other cable to the upper pump.
6. Run the control cables along the return flow pipe and fix them with cable ties.
Fitting the silencer hood
1. Fitthe hoodand alignit.Makesure thatthe hoodispushedunder thecontrol unithousingsothatthereisanevenlyspaced
joint all around the control unit.
2. Fix the hood to the control unit on both sides with countersunk screws.
3. Fix the hood with the storage tank connection angle below it. To dothat, carefully insert the tapping screw (supplied)
through the recess in the lower part of the housingfront side and then plug in the cover cap.
Fig. 3-24 Basic wiring: Sensors for storage tank, return flow
and solar panel, pump supply, mains supply Fig. 3-25 Additional cable with FlowSensor
Fig. 3-26 Step 4 Fig. 3-27 Step 5 Fig. 3-28 Step 6
Fig. 3-29 Step 1 Fig. 3-30 Step 2 Fig. 3-31 Step 3

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3.2.2 Installing the sensors
FlowSensor
The Solaris FlowSensor (Fig. 3-35, 16 41 06), which is available as an accessory, is a dual-function device that
simultaneously measures the flow through the solar panel array as well as the feed temperature. The measuring ranges are
0...20 l/min (flow quantity) and 0...120°C (feed temperature). Both values are indicated on the Solaris R3 control unit.
By controlling the speed of the circulation pump, the Solaris R3 automatically adjusts the optimum flow quantity.
1. Fit the sealing ring.
2. Screw the FlowSensor onto the solar feed coupling of the storage tank.
3. Next, fit the sealing ring and mount the push-in fitting to the feed of the FlowSensor.
4. Insert prepared feed pipe into the plug-in fitting of the FlowSensor.
5. Connect sensor with theFlowSensor cable of the control.
FlowGuard
Also available asan accessory isthe SolarisFlowGuard (Fig. 3-37), 16 41 02).Itisaregulatingvalvewith integrated flow
indicator that is used to adjust theflow through the solar panel array.The display range is 2...16l/min.
1. Insert seal (see Fig. 3-36).
2. Mount the FlowGuard and screwit tight.
3. Next, fit the sealing ring and mount the push-in fitting to the feed of the FlowGuard.
4. Insert prepared feed pipe into the plug-in fitting of the FlowGuard.
Fig. 3-32 Assembled RPS3
Note the direction of flow when installing the FlowSensor.
Fig. 3-33 Step 1 Fig. 3-34 Step 2 Fig. 3-35 OptionalFlowSensorissupplied
with 3 m long cable

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3.2.3 Installing the temperature sensor
1. Bend mounting springson both sensors (storage tank andreturn flow sensor andstorage tank sensorof the boiler control)
and insert in the sensor tube.
2. Align return flow sensor in the sensor tube to approx. 130 cm insertion depth (cable binder).
3. Align storage tank sensor in the sensor tube to approx. 70 cm insertion depth (cable binder).
4. Push the sealing plug into the sensor tube and route the cables.
Fig. 3-36 Steps 1 + 2 Fig. 3-37 Optional FlowGuard
CAUTION!
On no account may the storage tank temperature sensor of the boiler controller be inserted more than 75 cm
intothesensordipsleeve.Asensorthatisinsertedtoodeeplycanleadtooverheatingoftheconsumptionwater
section and the control unit can "hang" during the storagetank charging phase.
Fig. 3-38 Step 1 Fig. 3-39 Steps 2 + 3 Fig. 3-40 Steps 2 + 3
Fig. 3-41 Step 4

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3.3 Installing the connection pipes
3.3.1 Fitting the connection pipe to the solar panel
1. Run the connection pipe right up to the solar panel on theroof and attach it with pipe clips at suitable points.
2. Shorten the connection pipe to the required length (Fig. 3-43).
3. Deburr the pipe end (protection for theO-ring in the push-in fitting) and attach the fitting.
4. Connect the feed (at the top of the solar panel/VA15 Solar) or outflow connection pipe (at thebottom of the solar
panel/VA 18 Solar) to the connection pipe (Fig. 3-44).
CAUTION!
In longer pipe runswith minimum gradient, water pocketscan form due to thermal expansion of the plastic
pipes between the mounting points:
• Either attach the pipe toa rigid supporting structure (e.g. mounting rail, pipe, etc.).
• Or run the pipe through adrain pipe with gradient (e.g.HT pipe).
CAUTION!
Siphon actionmust never be allowed to occur anywhere in the pipe run between storage tank and solar panel.
This could lead tofunctional faults and evenmaterial damage.
• Always make sure that pipe runs have a continuous gradient of atleast 2%.
The differences between the connection points and dimensions of thefeed connection pipe (at the top of the
solar panel/VA 15Solar) and the return flow connection pipe (atthe bottom of the solar panel/VA18 Solar)
make it impossible to mistake one pipe for the other.
• However, you must ensure that the feed and returnflow pipes on the solar panel are labelled as heat
generators.
Fig. 3-42 Mark the connection pipe Fig. 3-43 Shorten it to length Fig. 3-44 Push the fitting onto the
coupling

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3.3.2 Connect several Sanicube hot water storage tanks
TheROTEXconnectionpipesystempermitstheparallelconnectionofseveralSolarisSanicubetoobtainlarge-scaleinstallations
with and without solar heating.
By means of the Solaris storage tank extension set CON SX ( 16 01 07), 2 Solaris Sanicubescan be connected per control
and pump unit RPS3 (Fig. 3-45).
Operating principle
– The solar return flow is drawn from the common return flow pipe(Fig. 3-45, Pos. 5), which connects the solar sections of
both storage tanks.
– The common return flow is pumped to the solar panel array by the RPS3 control unit (Fig. 3-45, Pos. 4).
– After beingheated in the solarpanel array, the water enters both storagetanks as solarfeed via the feed distribution pipes
(two equally long flexible and insulated pipes, Pos. 6, Fig. 3-45).
As the amount of water drawn into and circulated through the solar system can be different in the 2 Sanicubes inspite of the
matchingprovidedbytheFlowGuardvalves(FLG)inthefeeddistributionpipes,oneoftheSanicubescouldoverflowiftherewere
no common return flowpipe (Fig. 3-45,Pos. 5) as equalisation. Thispipeprevents excessivelevel differences inthe twostorage
tanks.
The optional ROTEX FlowGuard ( 164102) ensures uniform filling of both Sanicubes. For this, one
FlowGuard must be installed per storage tank, with a common feed pipe to the FlowSensor.
After connecting and starting the system, the filling levels should be observed for at least 2 hours and the
FlowGuards adjusted if necessary.
1Sanicube Solaris
2Non-pressurised area
3Solar panel array
4Control and pump unit RPS3
5Return flow connection pipe
(non-pressurised area)
6Solaris feed distributor
7Solaris return flow pipe
8Solaris feed pipe
Δ HDifference in level in non-pressurised
storage tank area
FLS Flow sensor
FLG FlowGuard
Fig. 3-45 Operating principle of the common return flow pipe