Resol DeltaSol SL User manual

*11204734* 11204734
Thank you for buying this RESOL product.
Please read this manual carefully to get the best performance from this unit.
Please keep this manual safe.
DeltaSol® SL
www.resol.com
Manual
en
Solar controller
Manual for the
specialised craftsman
Installation
Operation
Functions and options
Troubleshooting
The Internet portal for easy and secure access to
your system data – www.vbus.net
beginning with rmware version 1.05

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© 20180918_11204734_DeltaSol_SL.monen_neu
Safety advice
Please pay attention to the following safety advice in order to avoid danger and
damage to people and property.
Instructions
Attention must be paid to the valid local standards, regulations and directives!
Information about the product
Proper usage
The solar controller is designed for electronically controlling standard solar thermal
and heating systems in compliance with the technical data specied in this manual.
Improper use excludes all liability claims.
CE Declaration of conformity
The product complies with the relevant directives and is therefore
labelled with the CE mark. The Declaration of Conformity is available
upon request, please contact RESOL.
Note:
Strong electromagnetic elds can impair the function of the controller.
ÎMake sure the controller as well as the system are not exposed to
strong electromagnetic elds.
Subject to technical change. Errors excepted.
Target group
These instructions are exclusively addressed to authorised skilled personnel.
Only qualied electricians should carry out electrical works.
Initial installation must be effected by the system owner or qualied personnel
named by the system owner.
Description of symbols
WARNING! Warnings are indicated with a warning triangle!
ÎThey contain information on how to avoid the danger
described.
Signal words describe the danger that may occur, when it is not avoided.
• WARNING means that injury, possibly life-threatening injury, can occur.
• ATTENTION means that damage to the appliance can occur.
Note:
Notes are indicated with an information symbol.
ÎArrows indicate instruction steps that should be carried out.
Disposal
• Dispose of the packaging in an environmentally sound manner.
• At the end of its working life,the product must not be disposed of as urban waste.
Old appliances must be disposed of by an authorised body in an environmentally
sound manner. Upon request we will take back your old appliances bought from
us and guarantee an environmentally sound disposal of the devices.

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Solar controller DeltaSol®SL
With its versatile software, the DeltaSol®SL can control even complex systems
easily and reliably. 27 pre-congured system layouts with up to 3 hydraulic variants
each facilitate the commissioning and enable the adaptation to the individual system
requirements. The operation via 2 main buttons and 1 adjustment dial, the Light-
wheel®, still follows the well-known operating concept.
The multicoloured LED, integrated in the Lightwheel®, offers many possibilities to
signal different system states.The microSD card slot and the 2 microbuttons for
quick access to the manual mode and the holiday function are located underneath
the slidable housing cover, the Slider.
Contents
1 Overview ..............................................................................................4
2 Installation ...........................................................................................5
2.1 Mounting........................................................................................................................5
2.2 Electrical connection...................................................................................................5
2.3 Data communication / Bus..........................................................................................6
2.4 MicroSD card slot........................................................................................................6
2.5 System overview..........................................................................................................7
2.6 Systems...........................................................................................................................9
3 Operation and function ....................................................................36
3.1 Buttons and adjustment dial....................................................................................36
3.2 Microbutton for manual mode and holiday mode..............................................36
3.3 Control lamp...............................................................................................................37
3.4 Menu structure...........................................................................................................37
3.5 Selecting menu points and adjusting values .........................................................37
3.6 Resetting balance values...........................................................................................38
4 System-Monitoring Display ..............................................................38
4.1 System screen.............................................................................................................39
4.2 Further indications ....................................................................................................40
5 Status level / Measurement values....................................................40
6 Balance values....................................................................................41
7 Commissioning..................................................................................41
8 Indications, functions and options....................................................44
8.1 Status level...................................................................................................................44
8.2 Menu overview...........................................................................................................47
9 User code and short menu - Adjustment values............................74
10 Messages.............................................................................................75
11 Troubleshooting.................................................................................76
12 Accessories ........................................................................................79
12.1 Sensors and measuring instruments......................................................................80
12.2 VBus®accessories......................................................................................................80
12.3 Interface adapters ......................................................................................................80
13 Index ...................................................................................................81

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1 Overview
• 4 relay outputs (incl. 1 extra-low voltage relay)
• 4 inputs for Pt1000, Pt500 or KTY temperature sensors
• Inputs for 1 analogue Grundfos Direct SensorTM and 1 Flowrotor
• 1 V40 impulse input (also usable as a Pt1000, Pt500 or
KTY temperature sensor input)
• 2PWMoutputsforspeedcontrolofhigh-efciencypumps
• 27 basic system layouts
with up to 3 hydraulic variants each to choose from
• Automatic function control according to VDI 2169
110
166 130
47
Technical data:
Inputs: 4 inputs for Pt1000, Pt500 or KTY temperature sensors, 1 analogue Grund-
fos Direct Sensor™ , 1 Flowrotor, 1 V40 impulse input (also usable as a Pt1000, Pt500
or KTY temperature sensor input)
Outputs: 3 semiconductor relays, 1 potential-free extra-low voltage relay, 2 PWM
outputs (switchable to 0-10 V)
PWM frequency: 512 Hz
PWM voltage: 10,8 V
Switching capacity:
1 (1) A 240 V~ (semiconductor relay)
1 (1) A 30 V⎓ (potential-free relay)
Total switching capacity: 3 A 240 V~
Power supply: 100 … 240 V~ (50 … 60 Hz)
Supply connection: type Y attachment
Standby: 0.69 W
Temperature controls class: I
Energyefciencycontribution: 1 %
Mode of operation: Type 1.B.C.Y
Rated impulse voltage: 2,5 kV
Data interface: RESOL VBus®, MicroSD card slot
VBus®current supply: 60 mA
Functions: external heat exchanger, operating hours counter, tube collector func-
tion, thermostat function, pump speed control, heat quantity measurement, adjust-
able system parameters and optional functions (menu-driven), balance and diagnos-
tics function, function control according toVDI 2169
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting, also suitable for mounting into patch panels
Indication / Display: System-Monitoring-Display, for visualisation of the systems,
16-segment-display, 8 symbols for indication of the system status, Lightwheel®(ad-
justment dial) and background illumination
Operation: 4 push buttons at the front and 1 Lightwheel®
Protection type: IP 20 / DIN EN 60529
Protection class: I
Ambient temperature: 0 … 40 °C
Degree of pollution: 2
Dimensions: 110 x 166 x 47 mm

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2 Installation
2.1 Mounting
WARNING! Electric shock!
Upon opening the housing, live parts are exposed!
ÎAlways disconnect the controller from power supply
before opening the housing!
Note:
Strong electromagnetic elds can impair the function of the controller.
ÎMake sure the controller as well as the system are not exposed to
strong electromagnetic elds.
The unit must only be located in dry interior rooms.
The controller must additionally be supplied from a double pole switch with contact
gap of at least 3 mm.
Please pay attention to separate routing of sensor cables and mains cables.
In order to mount the device to the wall, carry out the following steps:
ÎUnscrew the crosshead screw from the cover and remove it along with the
cover from the housing.
ÎMark the upper fastening point on the wall. Drill and fasten the enclosed wall
plug and screw leaving the head protruding.
ÎHang the housing from the upper fastening point and mark the lower fastening
points (centres 130 mm).
ÎInsert lower wall plugs.
ÎFasten the housing to the wall with the lower fastening screw and tighten.
ÎCarry out the electrical wiring in accordance with the terminal allocation, (see
chap. 2.2).
ÎPut the cover on the housing.
ÎAttach with the fastening screw.
2.2 Electrical connection
ATTENTION! ESD damage!
Electrostatic discharge can lead to damage to electronic com-
ponents!
ÎTake care to discharge properly before touching the
inside of the device! To do so, touch a grounded sur-
face such as a radiator or tap!
WARNING! Electric shock!
Upon opening the housing, live parts are exposed!
ÎAlways disconnect the controller from power supply
before opening the housing!
Note:
Connecting the device to the power supply must always be the last step
of the installation!
Note:
The pump speed must be set to 100% when auxiliary relays or valves are
connected.
The controller is supplied with power via a mains cable. The power supply of the
device must be 100 … 240 V~ (50 … 60 Hz).
The controller is equipped with 4 relays in total to which loads such as pumps,
valves, etc. can be connected:
• Relays 1 … 3 are semiconductor relays, designed for pump speed control:
Conductor R1 … R3
Neutral conductor N
Protective conductor ⏚
• Relay 4 is a potential-free low voltage relay
Depending on the product version, mains cables and sensor cables are already con-
nected to the device. If that is not the case, please proceed as follows:
Connect the temperature sensors (S1 to S5) to the corresponding terminals
with either polarity:
S1 = Sensor 1 (collector sensor )
S2 = Sensor 2 (store sensor base)
S3 = Sensor 3 (e. g. store sensor store 2)
S4 = Sensor 4 (e. g. store sensor store 2)
S5 = Sensor 5 (e. g. sensor collector 2)

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Connect the Grundfos Direct Sensor™ to the S6 input.
Connect the Flowrotor to the S7 input.
A S5 / V40 owmeter can be connected to the terminals V40 and GND (either
polarity).
The terminals marked PWM are control outputs for high-efciency pumps (con-
vertible to 0-10 V signal outputs, see page 36).
VBus
VBus
S5/V40
S4 S3
GND
S6
S7
DeltaSol®SL
Made in Germany
Sensors
S2 S1
100 ... 240V
T4A
50-60 Hz
N
R3 R2 R1
L
R1-R3|1 (1) A 240V~R4|1 (1) A 30V
IP 20
R4 PWMA
0-10V
PWMB
0-10V
SD
R4
NN N N
R3 R2 R1 L
1234
56789
10 11
The mains connection is at the terminals:
Neutral conductor N
Conductor L
Protective conductor ⏚
Note:
For further information about heat quantity measurement with Grundfos
Direct Sensor™ see page 64.
Note:
The connection depends on the system layout selected (see page 7).
Note:
For more details about the initial commissioning procedure see page 41.
2.3 Data communication / Bus
The controller is equipped with the RESOL VBus®for data transfer and energy
supply to external modules.The connection is to be carried out at the two termi-
nals marked VBus (any polarity).
One or more RESOL VBus®modules can be connected via this data bus, such as:
• RESOL DL2 Datalogger
• RESOL DL3 Datalogger
Furthermore, the controller can be connected to a PC or integrated into a network
via the RESOL VBus®/USB or VBus® /LAN interface adapter (not included). Differ-
ent solutions for visualisation and remote parameterisation are availabe on the
RESOL website www.resol.com. On the website, rmware updates are also availabe.
Note:
More accessories on page 79.
2.4 MicroSD card slot
The controller is equipped with a MicroSD card slot.
With a MicroSD card, the following functions can be carried out:
• Store measurement and balance values onto the MicroSD card.After the trans-
fer to a computer, the values can be opened and visualised, e. g. in a spreadsheet.
• Prepare adjustments and parameterisations on a computer and transfer them via
the MicroSD card.
• Store adjustments and parameterisations on the MicroSD card and, if necessary,
retrieve them from there.
• Download rmware updates from the Internet and install them on the control-
ler via MicroSD card.
MicroSD card slot
A MicroSD card is not included, but can also be purchased at RESOL.
For more information about using a MicroSD card, see page 69.

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2.5 System overview
1
Solar system with 1 store (page 9)
5
Solar system with 2 stores and valve
control (page 13)
9
Solar system with 1 store and return
preheating (page 17)
13
Solar system with store loading in
layers and solid fuel boiler (page 21)
2
Solar system with 2 stores and heat
exchange (page 10)
6
Solar system with 2 stores and pump
control (page 14)
10
Solar system with 1 store, return pre-
heating and afterheating (page 18)
14
Solar system with store loading in
layers and return preheating (page 22)
3
Solar system with 1 store and after-
heating (page 11)
7
Solar system with east-/west collectors
(page 15)
11
Solar system with store loading in
layers and heat exchange (page 19)
15
Solar system with store loading in
layers and heat exchange (page 23)
4
Solar system with 1 store and 3-port
valve for store loading in layers (page 12)
8
Solar system with 1 store and solid
fuel boiler (page 16)
12
Solar system with store loading in
layers and afterheating (page 20)
16
Solar system with 2 stores and heat
exchange (page 24)

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17
Solar system with 2 stores and heat
exchange (page 25)
21
Solar system with with east-/west collec-
tors, 2 stores and valve control (page 29)
25
Solar system with 2 stores, pump con-
trol and afterheating (page 33)
18
Solar system with east-/west collectors
and thermostatic afterheating (page 26)
22
Solar system with 2 stores, valve con-
trol and afterheating (page 30)
26
Solar system with 2 stores, pump con-
trol and return preheating (page 34)
19
Solar system with east-/west collectors
and return preheating (page 27)
23
Solar system with 2 stores, valve con-
trol and return preheating (page 31)
27
Solar system with 2 stores, pump con-
trol and solid fuel boiler (page 35)
20
Solar system with east-/west collectors
and store loading in layers (page 28)
24
Solar system with 2 stores, valve con-
trol and solid fuel boiler (page 32)

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2.6 Systems
System 1: Standard solar system with 1 store
The controller calculates the temperature difference between collector sensor
S1 and store sensor S2. If the difference is larger than or identical to the adjusted
switch-on temperature difference, the pump (R1) will be switched on and the store
will be loaded until the switch-off temperature difference or the maximum store
temperature is reached.
Hydraulic variant 1 Hydraulic variant 2
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Free 3 / GND
S4 Free 4 / GND
S5 Free 5 / GND
S6 Free S6
Relay
R1 Solar pump R1 / N / PE
R2 Free R2 / N / PE
R3 Free R3 / N / PE
R4 Free R4 / R4
S2
R1
S1
VBus
VBus
S5/V40
S4 S3
GND
S6
S7
Sensors Relais
S2 S1
N
R3 R2 R1
L
R4 PWMA
0-10V
PWMB
0-10V
R4
NNNN
R3 R2 R1 L
1234
56789
10 11
332 2
Netz
Mains

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System 2: Solar system with 2 stores and heat exchange
The controller calculates the temperature difference between collector sensor
S1 and store sensor S2. If the difference is larger than or identical to the adjusted
switch-on temperature difference, the pump (R1) will be switched on and the store
will be loaded until the switch-off temperature difference or the maximum store
temperature is reached.
Heat exchange control to an existent store via an additional pump (R3) can be
carried out with another temperature differential function (S3 heat source/S4
heat sink).
Hydraulic variant 1 Hydraulic variant 2
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature heat
exchange source
3 / GND
S4 Temperature heat
exchange sink
4 / GND
S5 Free 5 / GND
S6 Free S6
Relay
R1 Solar pump R1 / N / PE
R2 Free R2 / N / PE
R3 Store loading pump R3 / N / PE
R4 Free R4 / R4
VBus
VBus
S5/V40
S4 S3
GND
S6
S7
Sensors Relais
S2 S1
N
R3 R2 R1
L
R4 PWMA
0-10V
PWMB
0-10V
R4
NNNN
R3 R2 R1 L
1234
56789
10 11
2332 2 2 3
R3
R1
S3
S2
S1
S4
Netz
Mains

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System 3: Solar system with 1 store and afterheating
The controller calculates the temperature difference between collector sensor
S1 and store sensor S2. If the difference is larger than or identical to the adjusted
switch-on temperature difference, the pump (R1) will be switched on and the store
will be loaded until the switch-off temperature difference or the maximum store
temperature is reached.
Afterheating (R3 and R4) can be carried out with a thermostat function (S3). If the
value at S3 reaches the switch-on temperature for the afterheating, the relay is
switched on. If the value exceeds the switch-off temperature for the afterheating,
the relay is switched off again.
Hydraulic variant 1 Hydraulic variant 3Hydraulic variant 2
R1
S2
S1
R3
R4
VBus
VBus
S5/V40
S4 S3
GND
S6
S7
Sensors Relais
S2 S1
N
R3 R2 R1
L
R4 PWMA
0-10V
PWMB
0-10V
R4
NNNN
R3 R2 R1 L
1234
56789
10 11
332 2 2 3
2
S3
Netz
Mains
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature after-
heating
3 / GND
S4 Free 4 / GND
S5 Free 5 / GND
S6 Free S6
Relay
R1 Solar pump R1 / N / PE
R2 Free R2 / N / PE
R3 Store loading pump R3 / N / PE
R4 Afterheating R4 / R4

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System 4: Solar system with 1 store and 3-port valve for store loading in layers
The controller compares the temperature at sensor S1 to the temperatures at
sensors S2 and S3. If the measured temperature differences are higher than the
adjusted switch-on temperature differences, the pump (R1) will be activated and
the corresponding store zone will be loaded up to the adjusted store maximum
or set temperature respectively via the valve (R2). The priority logic effects prior
loading of the upper zone of the store.
Hydraulic variant 1 Hydraulic variant 2
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature store top 3 / GND
S4 Free 4 / GND
S5 Free 5 / GND
S6 Free S6
Relay
R1 Solar pump R1 / N / PE
R2 Valve solar circuit R2 / N / PE
R3 Free R3 / N / PE
R4 Free R4 / R4
R2
R1 S3
S2
S1
VBus
VBus
S5/V40
S4 S3
GND
S6
S7
Sensors Relais
S2 S1
N
R3 R2 R1
L
R4 PWMA
0-10V
PWMB
0-10V
R4
NNNN
R3 R2 R1 L
1234
56789
10 11
332 2 2 3
Netz
Mains
Flow direction
when normall
y
o
p
en

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System 5: 2-store system with valve logic, 1 pump, 3 sensors and 3-port valve
The controller compares the temperature at sensor S1 to the temperatures at
sensors S2 and S4. If the measured temperature differences are higher than the
adjusted switch-on temperature differences, the pump (R1) will be activated and
the corresponding store will be loaded up to the adjusted store maximum or set
temperature respectively via the valve (R2). The priority logic effects prior loading
of store 1.
Hydraulic variant 1 Hydraulic variant 3Hydraulic variant 2
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Free 3 / GND
S4 Temperature store
2 base
4 / GND
S5 Free 5 / GND
S6 Free S6
Relay
R1 Solar pump R1 / N / PE
R2 Valve solar circuit R2 / N / PE
R3 Free R3 / N / PE
R4 Free R4 / R4
VBus
VBus
S5/V40
S4 S3
GND
S6
S7
Sensors Relais
S2 S1
N
R3 R2 R1
L
R4
PWMA
0-10V
PWMB
0-10V
R4
NNNN
R3 R2 R1 L
1234
56789
10 11
2332 23
R2
R1
S4S2S2
S1
Netz
Mains
Flow direction
when normally open

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System 6: 2-store solar system with pump logic
The controller compares the temperature at sensor S1 to the temperatures at
sensors S2 and S4. If the measured temperature differences are higher than the
adjusted switch-on temperature differences, the pump (R1 and / or R2) will be
activated and the corresponding store will be loaded up to the adjusted store
maximum or set temperature respectively at most.The priority logic effects prior
loading of store 1.
Hydraulic variant 1 Hydraulic variant 3Hydraulic variant 2
R2R1
S4
S2
S1
VBus
VBus
S5/V40
S4 S3
GND
S6
S7
Sensors Relais
S2 S1
N
R3 R2 R1
L
R4
PWMA
0-10V
PWMB
0-10V
R4
NNNN
R3 R2 R1 L
1234
56789
10 11
2332 23
Netz
Mains
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Free 3 / GND
S4 Temperature store
2 base
4 / GND
S5 Free 5 / GND
S6 Free S6
Relay
R1 Solar pump store R1 / N / PE
R2 Solar pump store 2 R2 / N / PE
R3 Free R3 / N / PE
R4 Free R4 / R4

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System 7: Solar system with east-/west collectors
The controller compares the temperatures at the collector sensors S1 and S5 to
the store temperature at sensor S2. If one of the measured temperature difference
is higher than the adusted switch-on temperature difference, the corresponding
pump (R1 and / or R2) will be switched on, thus loading the store until either the
switch-off temperature difference or the store maximum temperature is reached.
Hydraulic variant 1 Hydraulic variant 2
R2R1
S2
S1 S5
VBus
VBus
S5/V40
S4 S3
GND
S6
S7
Sensors Relais
S2 S1
N
R3 R2 R1
L
R4
PWMA
0-10V
PWMB
0-10V
R4
NNNN
R3 R2 R1 L
1234
56789
10 11
332 2 3
2
Netz
Mains
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Free 3 / GND
S4 Free 4 / GND
S5
Temperature collector
2
5 / GND
S6 Free S6
Relay
R1 Solar pump collector R1 / N / PE
R2
Solar pump collector 2 R2 / N / PE
R3 Free R3 / N / PE
R4 Free R4 / R4

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System 8: Solar system with 1 store and afterheating with solid fuel boiler
The controller calculates the temperature difference between collector sensor
S1 and store sensor S2. If the difference is larger than or identical to the adjusted
switch-on temperature difference, the pump (R1) will be switched on and the store
will be loaded until the switch-off temperature difference or the maximum store
temperature is reached.
With another temperature differential function (S5 heat source/S3 heat sink), af-
terheating of the store with a solid fuel boiler can be carried out via another pump
(R3).
Hydraulic variant 1 Hydraulic variant 2
VBus
VBus
S5/V40
S4 S3
GND
S6
S7
Sensors Relais
S2 S1
N
R3 R2 R1
L
R4 PWMA
0-10V
PWMB
0-10V
R4
NNNN
R3 R2 R1 L
1234
56789
10 11
332 2 2 3
2
R3
R1
S5
S3
S2
S1
Netz
Mains
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature store top 3 / GND
S4 Free 4 / GND
S5 Temperature solid fuel
boiler
5 / GND
S6 Free S6
Relay
R1 Solar pump R1 / N / PE
R2 Free R2 / N / PE
R3 Loading pump solid
fuel boiler
R3 / N / PE
R4 Free R4 / R4

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System 9: Solar system with 1 store and return preheating
The controller calculates the temperature difference between collector sensor
S1 and store sensor S2. If the difference is larger than or identical to the adjusted
switch-on temperature difference, the pump (R1) will be switched on and the store
will be loaded until the switch-off temperature difference or the maximum store
temperature is reached.
With another temperature differential function (S3 heat source/S4 heat sink) re-
turn preheating (heating circuit backup) is possible via another valve (R3).
Hydraulic variant 1 Hydraulic variant 2
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature store
return preheating
3 / GND
S4 Temperature heating
return
4 / GND
S5 Free 5 / GND
S6 Free S6
Relay
R1 Solar pump R1 / N / PE
R2 Free R2 / N / PE
R3 Valve return preheating R3 / N / PE
R4 Free R4 / R4
VBus
VBus
S5/V40
S4 S3
GND
S6
S7
Sensors Relais
S2 S1
N
R3 R2 R1
L
R4
PWMA
0-10V
PWMB
0-10V
R4
NNNN
R3 R2 R1 L
1234
56789
10 11
2332 2 2 3
R3
R1
S4
S3
S2
S1
Netz
Mains
Flow direction
when normally open

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System 10: Solar system with 1 store, return preheating and thermostatic afterheating
The controller calculates the temperature difference between collector sensor
S1 and store sensor S2. If the difference is larger than or identical to the adjusted
switch-on temperature difference, the pump (R1) will be switched on and the
store will be loaded until the switch-off temperature difference or the maximum
store temperature is reached.
Afterheating (R3 and R4) can be carried out with a thermostat function (S5). If the
value at S5 reaches the switch-on temperature for the afterheating, the relay is
switched on. If the value exceeds the switch-off temperature for the afterheating,
the relay is switched off again.
With another temperature differential function (S3 heat source/S4 heat sink) re-
turn preheating (heating circuit backup) is possible via another valve (R2).
Hydraulic variant 1 Hydraulic variant 2
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature store
return preheating
3 / GND
S4 Temperature
heating return
4 / GND
S5 Temperature
afterheating
5 / GND
S6 Free S6
Relay
R1 Solar pump R1 / N / PE
R2 Valve return preheating R2 / N / PE
R3 Store loading pump R3 / N / PE
R4 Afterheating R4 / R4
S4
R3
R2
R4
R1 S3
S2
S1
S5
VBus
VBus
S5/V40
S4 S3
GND
S6
S7
Sensors Relais
S2 S1
N
R3 R2 R1
L
R4 PWMA
0-10V
PWMB
0-10V
R4
NNNN
R3 R2 R1 L
1234
56789
10 11
2332 2 2 3
3
2 2
Net
z
Mains
Flow direction
when normally open

en
1919
en
System 11: Solar system with store loading in layers and heat exchange control
The controller compares the temperature at sensor S1 to the temperatures at
sensors S2 and S3. If the measured temperature differences are higher than the
adjusted switch-on temperature differences, the pump (R1) will be activated and
the corresponding store zone will be loaded up to the adjusted store maximum
or set temperature respectively via the valve (R2). The priority logic effects prior
loading of the upper zone of the store.
Heat exchange control to an existent store via an additional pump (R3) can be
carried out with another temperature differential function (S5 heat source/S4
heat sink).
Hydraulic variant 1 Hydraulic variant 3Hydraulic variant 2
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature store top 3 / GND
S4 Temperature heat
exchange sink
4 / GND
S5 Temperature heat
exchange source
5 / GND
S6 Free S6
Relay
R1 Solar pump R1 / N / PE
R2 Valve solar circuit R2 / N / PE
R3 Store loading pump R3 / N / PE
R4 Free R4 / R4
VBus
VBus
S5/V40
S4 S3
GND
S6
S7
Sensors Relais
S2 S1
N
R3 R2 R1
L
R4 PWMA
0-10V
PWMB
0-10V
R4
NNNN
R3 R2 R1 L
1234
56789
10 11
S4
R3
R2 S5
S3
R1
S2
S1
2332 2 2 3
3
2
Netz
Mains
Flow direction
when normally open

en
2020
en
System 12: Solar system with store loading in layers and thermostatic afterheating
The controller compares the temperature at sensor S1 to the temperatures at
sensors S2 and S3. If the measured temperature differences are higher than the
adjusted switch-on temperature differences, the pump (R1) will be activated and
the corresponding store zone will be loaded up to the adjusted store maximum
or set temperature respectively via the valve (R2). The priority logic effects prior
loading of the upper zone of the store.
Afterheating (R3 and R4) can be carried out with a thermostat function (S5). If the
value at S5 reaches the switch-on temperature for the afterheating, the relay is
switched on. If the value exceeds the switch-off temperature for the afterheating,
the relay is switched off again.
Hydraulic variant 1 Hydraulic variant 2
Sensors
S1 Temperature collector 1 / GND
S2 Temperature store
base
2 / GND
S3 Temperature store top 3 / GND
S4 Free 4 / GND
S5 Temperature
afterheating
5 / GND
S6 Free S6
Relay
R1 Solar pump R1 / N / PE
R2 Valve solar circuit R2 / N / PE
R3 Store loading pump R3 / N / PE
R4 Afterheating R4 / R4
R3
R2
R1
S2
S3
S1
R4
S5
VBus
VBus
S5/V40
S4 S3
GND
S6
S7
Sensors Relais
S2 S1
N
R3 R2 R1
L
R4 PWMA
0-10V
PWMB
0-10V
R4
NNNN
R3 R2 R1 L
1234
56789
10 11
332 2 2 3
3
2 2
Netz
Mains
Flow direction
when normally open