Resol DeltaSol BX L User manual

Thank you for buying this RESOL product.
Please read this manual carefully to get the best performance from this unit.
Please keep this manual carefully.
DeltaSol® BX L
www.resol.com
Manual
en
Installation
Operation
Functions and options
Troubleshooting
Manual for the
specialised craftsman
*11209351* 11209351
The Internet portal for easy and secure access
to your system data – www.vbus.net
from version 1.10

en
2
© 20190815_11209351_DeltaSol_BX_L.monen.indd
Safety advice
Please pay attention to the following safety advice in order to avoid danger and dam-
age to people and property.
Danger of electric shock:
• Whencarryingoutworks,thedevicemustrstofallbedisconnectedfromthe
mains.
• It must be possible to disconnect the device from the mains at any time.
• Do not use the device if it is visibly damaged.
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
systemsandheatingsystemsincompliancewiththetechnicaldataspeciedinthis
manual.
Improper use excludes all liability claims.
EU 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.
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 authorised skilled personnel.
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 envi-
ronmentally sound manner. Upon request we will take back your old appliances
bought from us and guarantee an environmentally sound disposal of the devices.
Subject to technical change. Errors excepted.

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DeltaSol®BX L solar controller
The system controller DeltaSol®BX L has been especially developed as an eco-
nomical solution for multi-store solar thermal systems. It features pre-programmed
system layouts for a range of 2- and 3-store systems and special functions such as
an extended priority and loading logic. Of course, the DeltaSol®BX L is also
equipped with a thermal disinfection function, tube collector-, thermostat-, heat
dump function and many more.With the integrated SD card slot, system data can
easily be logged and transferred to a computer.
1 Overview ...............................................................................................4
2 Installation ............................................................................................5
2.1 Mounting .........................................................................................................................5
2.2 Electrical connection ....................................................................................................5
2.3 Data communication / Bus ...........................................................................................6
2.4 SD memory card slot...................................................................................................6
2.5 Overview of basic system layouts .............................................................................7
2.6 Systems............................................................................................................................8
3 Operation and function .....................................................................36
3.1 Buttons ......................................................................................................................... 36
3.2 Selecting menu points and adjusting values ......................................................... 36
3.3 Menu structure ........................................................................................................... 36
3.4 Shortcut........................................................................................................................ 37
3.5 Indications and system monitoring display ........................................................... 37
3.6 Further indications..................................................................................................... 39
4 Status menu........................................................................................39
5 Initial commissioning .........................................................................40
6 Functions and options........................................................................42
6.1 Status level ................................................................................................................... 42
6.2 Adjustment channels ................................................................................................. 45
6.3 Overview of options and their parameters ......................................................... 65
7 User code and short menu - Adjustment values.............................67
8 Messages..............................................................................................67
9 Troubleshooting .................................................................................68
10 Accessories ........................................................................................71
10.1 Sensors and measuring instruments ...................................................................... 71
10.2 Interface adapters....................................................................................................... 71
10.3 Visualisation modules ................................................................................................ 72
11 Index ....................................................................................................73
Contents

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1 Overview
• 4 relay outputs, 5 Pt1000 temperature sensor inputs
• 2PWMoutputsforspeedcontrolofhigh-efciencypumps
• 9 basic systems to choose from
• Unit °F and °C selectable
Technical data
Inputs: 5 Pt1000 temperature sensors, 1 V40 impulse input
Outputs: 3 semiconductor relays, 1 electromechanical relay and 2 PWM outputs
PWM frequency: 512 Hz
PWM voltage: 10.8 V
Switching capacity:
1 (1) A 240 V~ (semiconductor relay)
4 (1) A 240 V~ (electromechanical relay)
Total switching capacity: 4 A 240 V~
Power supply: 100 – 240 V~ (50 – 60 Hz)
Supply connection: type X attachment
Standby: 0.58 W
Temperature controls class: I
Energyefciencycontribution:1 %
Mode of operation: type 1.B.C.Y action
Rated impulse voltage: 2.5 kV
Data interface: RESOL VBus®, SD card slot
VBus®current supply: 35 mA
Functions: ΔT control, pump speed control, heat quantity measurement, operat-
ing hours counter for the solar pump, tube collector function, thermostat function,
store loading in layers, priority logic, heat dump function, thermal disinfection func-
tion, function control
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting, mounting into patch panels is possible
Indication / Display: System-Monitoring-Display for system visualisation, 16-seg-
ment display, 7-segment display, 9 symbols, operating control LED (directional pad)
and background illumination
Operation: 7 push buttons at the front
Ingress protection: IP 20 /EN 60529
Protection class: I
Ambient temperature: 0 … 40 °C
Pollution degree: 2
Dimensions: 198 x 170 x 43 mm
upper fastening point
lower fastening point
170
198
43
Dimensions and minimum distances

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2 Installation
2.1 Mounting
WARNING! Electric shock!
Upon opening the housing, live parts are exposed!
ÎAlways disconnect the device 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.
If the device is not equipped with a mains connection cable and a plug, the device
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 150mm).
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.
cover
screw
2.2 Electrical connection
WARNING! Electric shock!
Upon opening the housing, live parts are exposed!
ÎAlways disconnect the device from power supply
before opening the housing!
ATTENTION! ESD damage!
Electrostatic discharge can lead to damage to electronic
components!
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!
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.
Note:
It must be possible to disconnect the device from the mains at any time.
ÎInstall the mains plug such that it is accessible at any time.
ÎIf this is not possible, install a switch that can be accessed.
If the mains cable is damaged, it must be replaced by a special connection
cable which is available from the manufacturer or its customer service.

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Do not use the device if it is visibly damaged!
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 an electromechanical relay
Conductor R4
Neutral conductor N
Protective conductor ⏚
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 top)
S4 = Sensor 4 (e. g. store sensor store 2)
S5 = Sensor 5 (e. g. sensor collector 2)
AV40owmetercanbeconnectedtotheterminalsV40andGND(eitherpolarity).
The terminals marked PWMarecontroloutputsforhigh-efciencypumps.
Note:
For more information on pump control see page 47.
R2
R1
GND
PWM
N
X
PWM signal
cable
pump signal
input
pump power
supply
230 V~
power
supply
black (not
used)
blue blue
brown
brown
yellow/green
Electricalconnectionofahigh-efciencypump(HEpump)
Speed control of a HE pump is possible via a PWM signal.The pump has to be con-
nected to the relay (power supply) as well as to one of the PWM outputs A/B of
the controller. In the PUMP adjustment channel, one of the PWM control types has
to be selected (see page „Pump control“ on page 47).
Relay allocation for PWM outputs
PWM A is allocated to R1, PWM B is allocated to R2.

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Temp. Sensor
Pt1000
T4A
100 – 240 V~
50 – 60 Hz
1 (1) A (100 ... 240)V~
2 (1) A (100 ... 240)V~
R1-R3
R4
L
R3 R2 R1
GND
S1 S2 S3 S4 S5 VBus
N
R4
V40
L'
DeltaSol®BX L
Made in Germany
IP 20
CU 72102083.01
VBus GND
The mains connection is at the terminals:
Neutral conductor N
Conductor L
Protective conductor ⏚
WARNING! Electric shock!
L’ is a fused contact permanently carrying voltage.
ÎAlways disconnect the device from power supply
before opening the housing!
Conductor L’ (L’ is not connected with the mains cable. L’ is a fused contact per-
manently carrying voltage.)
Note:
The connection depends on the system layout selected (see page 8).
Note:
For more details about the commissioning procedure see page 40.
2.3 Data communication / Bus
The controller is equipped with a RESOL VBus®for data transfer and energy
supply to external modules.The connection is to be carried out at the terminals
marked VBus (either polarity).
One or more RESOLVBus®modules can be connected via this data bus, such as:
• RESOLGA3LargeDisplaymodule/SD3SmartDisplay
• RESOL AM1 Alarm Module
• 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 available on the
RESOL website www.resol.com.
Note:
More accessories on page 73.
2.4 SD memory card slot
The controller is equipped with an SD card slot.
With an SD card, the following functions can be carried out:
• Store measurement and balance values onto the SD card.
After the transfer to a computer, the values can be opened
and visualised, e. g. in a spreadsheet.
Note:
For more information about using an SD card, see page 63.

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2.5 Overview of basic system layouts
2-store system with valve logic, 1
pump, 3 sensors and 3-port valve
(page 9)
2-store solar system with valve
logic and heat exchange control
(page 12)
2-store solar system with pump
logic (page 15)
2-store solar system with pump
logic and heat exchange control
(page 18)
3-store solar system with valve
logic and heat exchange control
(page 21)
3-store solar system with pump
logic and heat exchange control
(page 24)
Solar system with store loading in
layers and 2 stores (page 27)
Solar system with east-/west col-
lectors and 2 stores (valve logic)
(page 30)
3-store solar system with east-/
west collectors (page 33)
5
6 7 8 9
1234

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2.6 Systems
System 1
2-store system with valve logic, 1 pump, 3 sensors and 3-port valve
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.
Sensors
S1 Temperature collector 1/GND
S2 Temperature store
base
2/GND
S3 Free 3/GND
S4 Free 4/GND
S5 Free 5/GND
Relay
R1 Solar pump R1 / N / PE
R2 Free R2 / N / PE
R3 Free R3 / N / PE
R4 Free R4 / R4
PWM B PWM A
Note: 3-port valve normally open - store 1 (S2)

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Adjustment channels
Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page
ARR 1 System 45
ROSA 0000 5 ROSA number 62
LOAD1 > Loading 1
DT1O 6 K Switch-on temperature difference 1 46
DT1F 4 K Switch-off temperature difference 1 46
DT1S 10 K Set temperature difference 1 46
RIS1 2 K Rise 1 46
S1MAX 60 °C Store maximum limitation 1 46
SMXS1 2 Sensor store max 1 47
LOAD2 > Loading 2
DT2O 6 K Switch-on temperature difference 2 46
DT2F 4 K Switch-off temperature difference 2 46
DT2S 10 K Set temperature difference 2 46
RIS2 2 K Rise 2 46
S2MAX 60 °C Store maximum limitation 2 46
SMXS2 4 Sensor store max 2 47
LST2 ON Loading store 2 47
COL > Collector
CEM 130 °C Collector emergency temperature 48
OCCO* OFF Collector cooling option 48
CMAX 110 °C Collector maximum temperature 49
OCMN OFF Collector minimum limitation option 49
CMIN 10 °C Minimum collector temperature 49
OTCO OFF Tube collector function option 49
TCST 07:00 Tube collector starting time 49
TCEN 19:00 Tube collector ending time 49
TCRU 30 s Tube collector runtime 49
TCIN 30 min Tube collector standstill interval 49
OCFR OFF Collector frost protection option 50
CFR O 4 °C Antifreeze temperature collector on 50
CFR F 5 °C Antifreeze temperature collector off 50
FRPST 1 Antifreeze store selection 50
LLOGI> Loading logic
LOGIC PRIO Priority logic 50

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Adjustment channels
Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page
PRIO1 1 Priority logic store 1 50
OSTS OFF Store set option 52
TST1 45 °C Set store temperature store 1 52
TST2 45 °C Set store temperature store 2 52
tLB 2 min Loading break time 50
tRUN 15 min Circulation runtime 50
PSPEE OFF Pause speed option 53
PDELA OFF Pump delay option 53
COOL > Cooling functions
OSYC* OFF System cooling 53
OSTC OFF Store cooling 54
OHDP* OFF Heat dump 54
ODTFT > ΔT function option 56
OTH > Thermostat function option 58
PUMP > Speed
PUMP1 PSOL Speed variant pump 1 47
PUMP2 PSOL Speed variant pump 2 47
PUMP3 OnOF Speed variant pump 3 47
MAN > Manual mode
MAN1 Auto Manual mode 1 58
MAN2 Auto Manual mode 2 58
MAN3 Auto Manual mode 3 58
MAN4 Auto Manual mode 4 58
BLPR > OFF Blocking protection 58
OTDIS > OFF Thermal disinfection option 59
OPARR > OFF Parallel relay option 60
OHQM > OFF Heat quantity measurement option 60
DATE> Enter date 62
LANG> dE Language 63
UNIT > °C Unit 63
OSDC > SD card option 63
CODE 0000 User code 67
RESET OFF Factory setting
* are blocked against each other

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Sensor/terminal Designation Description
S1 TCOL Temperature collector
S2 TST1B Temperature store 1 base
S3 TST1T Temperature store 1 top
S4 TST2B Temperature store 2 base
S5 TST2T Temperature store 2 top
V40 optional:owmeter
Relay Description
R1 Solar pump
R2 Heat exchange pump
R3 3-port valve store 1/2
R4 optional:
Thermal disinfection
Parallel relay
Heat dump
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 maximum temperature
via the valve (R3). Store 1 is loaded with priority. Heat exchange from store 2 to
store 1 (R2) is possible with another temperature differential function (S3-heat
sink / S5-heat source).
System 2
2-store solar system with valve logic and heat exchange control
Note: 3-port valve normally open - store 1 (S2)
PWM B PWM A

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Adjustment channels
Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page
ARR 1 2 System 45
ROSA 0000 16 ROSA number 62
LOAD1 > Loading 1
DT1O 6 K Switch-on temperature difference 1 46
DT1F 4 K Switch-off temperature difference 1 46
DT1S 10 K Set temperature difference 1 46
RIS1 2 K Rise 1 46
S1MAX 60 °C Store maximum limitation 1 46
SMXS1 2 Sensor store max 1 47
LOAD2 > Loading 2
DT2O 6 K Switch-on temperature difference 2 46
DT2F 4 K Switch-off temperature difference 2 46
DT2S 10 K Set temperature difference 2 46
RIS2 2 K Rise 2 46
S2MAX 60 °C Store maximum limitation 2 46
SMXS2 4 Sensor store max 2 47
LST2 ON Loading store 2 47
COL > Collector
CEM 130 °C Collector emergency temperature 48
OCCO* OFF Collector cooling option 48
CMAX 110 °C Collector maximum temperature 49
OCMN OFF Collector minimum limitation option 49
CMIN 10 °C Minimum collector temperature 49
OTCO OFF Tube collector function option 49
TCST 07:00 Tube collector starting time 49
TCEN 19:00 Tube collector ending time 49
TCRU 30 s Tube collector runtime 49
TCIN 30 min Tube collector standstill interval 49
OCFR OFF Collector frost protection option 50
CFR O 4 °C Antifreeze temperature collector on 50
CFR F 5 °C Antifreeze temperature collector off 50
FRPST 1 Antifreeze store selection 50
LLOGI> Loading logic
LOGIC PRIO Priority logic 50
PRIO1 1 Priority logic store 1 50
OSTS OFF Store set option 52
TST1 45 °C Set store temperature store 1 52
TST2 45 °C Set store temperature store 2 52

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Adjustment channels
Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page
tLB 2 min Loading break time 50
tRUN 15 min Circulation runtime 50
PSPEE OFF Pause speed option 53
PDELA OFF Pump delay option 53
COOL > Cooling functions
OSYC* OFF System cooling 53
OSTC OFF Store cooling 54
OHDP* OFF Heat dump 54
DT4 > Heat exchange
DT4O 6 K Switch-on difference 55
DT4F 4 K Switch-off difference 55
DT4S 10 K Set difference 55
RIS4 2 K Rise 55
MAX4O 60 °C Switch-on temperature (maximum limitation) 55
MAX4F 58 °C Switch-off temperature (maximum limitation) 55
MIN4O 5 °C Switch-on temperature (minimum limitation) 55
MIN4F 10 °C Switch-off temperature (minimum limitation) 55
OTH > Thermostat function option 58
PUMP > Speed
PUMP1 PSOL Speed variant pump 1 47
PUMP2 PSOL Speed variant pump 2 47
PUMP3 OnOF Speed variant pump 3 47
MAN > Manual mode
MAN1 Auto Manual mode 1 58
MAN2 Auto Manual mode 2 58
MAN3 Auto Manual mode 3 58
MAN4 Auto Manual mode 4 58
BLPR > OFF Blocking protection 58
OTDIS > OFF Thermal disinfection option 59
OPARR > OFF Parallel relay option 60
OHQM > OFF Heat quantity measurement option 60
DATE> Enter date 62
LANG> dE Language 63
UNIT > °C Unit 63
OSDC > SD card option 63
CODE 0000 User code 67
RESET OFF Factory setting
* are blocked against each other

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Sensor/terminal Designation Description
S1 TCOL Temperature collector
S2 TST1B Temperature store 1 base
S3 Optional sensor for measurement purposes
or options
S4 TST2B Temperature store 2 base
S5 Optional sensor for measurement purposes
or options
V40
Relay Description
R1 Solar pump store 1
R2 Solar pump store 2
R3 optional:
Thermal disinfection
Parallel relay
Heat dump
R4
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 ac-
tivated and the corresponding store will be loaded up to the adjusted maximum
temperature at most.
System 3
2-store solar system with pump logic
PWM B PWM A

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Adjustment channels
Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page
ARR 1 3 System 45
ROSA 0000 6 ROSA number 62
LOAD1 > Loading 1
DT1O 6 K Switch-on temperature difference 1 46
DT1F 4 K Switch-off temperature difference 1 46
DT1S 10 K Set temperature difference 1 46
RIS1 2 K Rise 1 46
S1MAX 60 °C Store maximum limitation 1 46
SMXS1 2 Sensor store max 1 47
LOAD2 > Loading 2
DT2O 6 K Switch-on temperature difference 2 46
DT2F 4 K Switch-off temperature difference 2 46
DT2S 10 K Set temperature difference 2 46
RIS2 2 K Rise 2 46
S2MAX 60 °C Store maximum limitation 2 46
SMXS2 4 Sensor store max 2 47
LST2 ON Loading store 2 47
COL > Collector
CEM 130 °C Collector emergency temperature 48
OCCO* OFF Collector cooling option 48
CMAX 110 °C Collector maximum temperature 49
OCMN OFF Collector minimum limitation option 49
CMIN 10 °C Minimum collector temperature 49
OTCO OFF Tube collector function option 49
TCST 07:00 Tube collector starting time 49
TCEN 19:00 Tube collector ending time 49
TCRU 30 s Tube collector runtime 49
TCIN 30 min Tube collector standstill interval 49
OCFR OFF Collector frost protection option 50
CFR O 4 °C Antifreeze temperature collector on 50
CFR F 5 °C Antifreeze temperature collector off 50
FRPST 1 Antifreeze store selection 50
LLOGI> Loading logic
LOGIC PRIO Priority logic 50
PRIO1 1 Priority logic store 1 50

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Adjustment channels
Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page
OSTS OFF Store set option 52
TST1 45 °C Set store temperature store 1 52
TST2 45 °C Set store temperature store 2 52
OSE OFF Spread function option 52
DTSE 20 K Spread difference 52
SLSTR 3 Store spread function 52
tLB 2 min Loading break time 50
tRUN 15 min Circulation runtime 50
PSPEE OFF Pause speed option 53
PDELA OFF Pump delay option 53
COOL > Cooling functions
OSYC* OFF System cooling 53
OSTC OFF Store cooling 54
OHDP* OFF Heat dump 54
ODTFT > ΔT function option 56
OTH > Thermostat function option 58
PUMP > Speed
PUMP1 PSOL Speed variant pump 1 47
PUMP2 PSOL Speed variant pump 2 47
PUMP3 OnOF Speed variant pump 3 47
MAN > Manual mode
MAN1 Auto Manual mode 1 58
MAN2 Auto Manual mode 2 58
MAN3 Auto Manual mode 3 58
MAN4 Auto Manual mode 4 58
BLPR > OFF Blocking protection 58
OTDIS > OFF Thermal disinfection option 59
OPARR > OFF Parallel relay option 60
OHQM > OFF Heat quantity measurement option 60
DATE> Enter date 62
LANG> dE Language 63
UNIT > °C Unit 63
OSDC > SD card option 63
CODE 0000 User code 67
RESET OFF Factory setting
* are blocked against each other

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Sensor/terminal Designation Description
S1 TCOL Temperature collector
S2 TST1B Temperature store 1 base
S3 TST1T Temperature store 1 top
S4 TST2B Temperature store 2 base
S5 TST2T Temperature store 2 top
V40 optional:owmeter
Relay Description
R1 Solar pump store 1
R2 Solar pump store 2
R3 Heat exchange pump
R4 optional:
Thermal disinfection
Parallel relay
Heat dump
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 ac-
tivated and the corresponding store will be loaded up to the adjusted maximum
temperature. Store 1 is loaded with priority.
Heat exchange from store 2 to store 1 (R3) is possible with another temperature
differential function (S3 - heat sink / S5 - heat source).
5
PWM B PWM A
System 4
2-store solar system with pump logic and heat exchange control

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Adjustment channels
Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page
ARR 1 4 System 45
ROSA 0000 17 ROSA number 62
LOAD1 > Loading 1
DT1O 6 K Switch-on temperature difference 1 46
DT1F 4 K Switch-off temperature difference 1 46
DT1S 10 K Set temperature difference 1 46
RIS1 2 K Rise 1 46
S1MAX 60 °C Store maximum limitation 1 46
SMXS1 2 Sensor store max 1 47
LOAD2 > Loading 2
DT2O 6 K Switch-on temperature difference 2 46
DT2F 4 K Switch-off temperature difference 2 46
DT2S 10 K Set temperature difference 2 46
RIS2 2 K Rise 2 46
S2MAX 60 °C Store maximum limitation 2 46
SMXS2 4 Sensor store max 2 47
LST2 ON Loading store 2 47
COL > Collector
CEM 130 °C Collector emergency temperature 48
OCCO* OFF Collector cooling option 48
CMAX 110 °C Collector maximum temperature 49
OCMN OFF Collector minimum limitation option 49
CMIN 10 °C Minimum collector temperature 49
OTCO OFF Tube collector function option 49
TCST 07:00 Tube collector starting time 49
TCEN 19:00 Tube collector ending time 49
TCRU 30 s Tube collector runtime 49
TCIN 30 min Tube collector standstill interval 49
OCFR OFF Collector frost protection option 50
CFR O 4 °C Antifreeze temperature collector on 50
CFR F 5 °C Antifreeze temperature collector off 50
FRPST 1 Antifreeze store selection 50
LLOGI> Loading logic
LOGIC PRIO Priority logic 50
PRIO1 1 Priority logic store 1 50
OSTS OFF Store set option 52
TST1 45 °C Set store temperature store 1 52
TST2 45 °C Set store temperature store 2 52
OSE OFF Spread function option 52

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Adjustment channels
Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page
DTSE 20 K Spread difference 52
SLSTR 3 Spread function option 52
tLB 2 min Loading break time 50
tRUN 15 min Circulation runtime 50
PSPEE OFF Pause speed option 53
COOL > Cooling functions
OSYC* OFF System cooling 53
OSTC OFF Store cooling 54
OHDP* OFF Heat dump 54
DT4 > Heat exchange
DT4O 6 K Switch-on difference 55
DT4F 4 K Switch-off difference 55
DT4S 10 K Set difference 55
RIS4 2 K Rise 55
MAX4O 60 °C Switch-on temperature (maximum limitation) 55
MAX4F 58 °C Switch-off temperature (maximum limitation) 55
MIN4O 5 °C Switch-on temperature (minimum limitation) 55
MIN4F 10 °C Switch-off temperature (minimum limitation) 55
OTH Thermostat function option 58
PUMP > Speed
PUMP1 PSOL Speed variant pump 1 47
PUMP2 PSOL Speed variant pump 2 47
PUMP3 OnOF Speed variant pump 3 47
MAN > Manual mode
MAN1 Auto Manual mode 1 58
MAN2 Auto Manual mode 2 58
MAN3 Auto Manual mode 3 58
MAN4 Auto Manual mode 4 58
BLPR > OFF Blocking protection 58
OTDIS > OFF Thermal disinfection option 59
OPARR > OFF Parallel relay option 60
OHQM > OFF Heat quantity measurement option 60
DATE> Enter date 62
LANG> dE Language 63
UNIT > °C Unit 63
OSDC > SD card option 63
CODE 0000 User code 67
RESET OFF Factory setting
* are blocked against each other