joule DeltaSol BS/2 HE User manual

*11209872* 11209872
Thank you for buying this product.
Please read this manual carefully to get the best performance from this unit.
Please keep this manual carefully.
DeltaSol®BS/2 HE
Manual
en
Solar controller
Manual for the
specialised craftsman
Installation
Operation
Functions and options
Troubleshooting

2
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© 20151109_11209872_Joule_DeltaSol_BS_HE.monen
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
SYSTEMSINCOMPLIANCEWITHTHETECHNICALDATASPECIlED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 the manufacturer.
Note:
3TRONGELECTROMAGNETIClELDSCANIMPAIRTHEFUNCTIONOFTHECONTROLLER
ÎMake sure the controller as well as the system are not exposed to
STRONGELECTROMAGNETIClELDS
Target group
These instructions are exclusively addressed to authorised skilled personnel.
/NLYQUALIlEDELECTRICIANSSHOULDCARRYOUTELECTRICALWORKS
)NITIAL INSTALLATION MUST BE EFFECTED BY THE SYSTEM OWNER OR QUALIlED 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 dan-
ger 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.
• Dispose of old appliances in an environmentally sound manner. Upon request we
will take back your old appliances bought from us and guarantee an environmen-
tally sound disposal of the devices.
Subject to technical change. Errors excepted.

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1 Overview ..............................................................................................4
2 Installation ...........................................................................................5
2.1 Mounting........................................................................................................................ 5
2.2 Electrical connection................................................................................................... 6
2.3 Data communication / Bus.......................................................................................... 6
2.4 System: Standard solar system with 1 store.......................................................... 7
3 Operation and function ......................................................................9
3.1 Buttons........................................................................................................................... 9
4 System-Monitoring-Display ................................................................9
4.1 System screen............................................................................................................. 10
4.2 Other indications....................................................................................................... 10
5 Channel overview ..............................................................................11
5.1 Display channels ......................................................................................................... 11
5.2 Adjustment channels................................................................................................. 12
6 Troubleshooting.................................................................................17
7 Accessories ........................................................................................20
7.1 Sensors and measuring instruments......................................................................21
7.2 VBus®accessories...................................................................................................... 21
7.3 Interface adapters ...................................................................................................... 21
8 Index ...................................................................................................22
Contents
DeltaSol®BS/2 HE solar controller
The controller for standard solar thermal systems.
The DeltaSol®BS/2 HE controller provides a clear operating concept and is
equipped with the combined display with system-monitoring. Flashing symbols for
sensors and pumps enable an immediate allocation of temperatures, temperature
differences and active actuators.Thus, adjusting and monitoring the solar system is
quick and easy.

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1 Overview
• %SPECIALLYDESIGNEDFORCONTROLLINGAHIGHEFlCIENCYPUMP
• System-Monitoring-Display
• Up to 3 Pt1000 temperature sensors
• Heat quantity measurement
Technical data
Inputs: 3 Pt1000 temperature sensors
Outputs: 1 semiconductor relay, 1 PWM output
Switching capacity: 1 (1) A 240 V~ (semiconductor relay)
Total switching capacity: 1 A 240 V~
Power supply: 220 … 240 V~ (50 … 60 Hz)
Supply connection: type Y attachment
Standby: 1.54 W
Mode of operation: type 1.C.Y action
Rated impulse voltage: 2.5 kV
Data interface: VBus®
VBus®current supply: 35 mA
Functions: HE pump control, heat quantity balancing, tube collector function, an-
tifreeze function, operating hours counter, collector minimum and maximum lim-
itation
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting, also suitable for mounting into patch panels
Indication / Display: System-Monitoring-Display for visualisation of systems,
16-segment and 7-segment display, 8 symbols for indication of system status and
operating control LED
Operation: 3 buttons at the front of the housing
Protection type: IP 20/ DIN EN 60529
Protection class: II
Ambient temperature: 0 … 40 °C
Degree of pollution: 2
Dimensions: 172 x 110 x 49 mm
104 mm
4.1"
130 mm
5.1“
2.6"
66 mm
4.3"
110 mm
6.8"
172 mm
1.1"
28 mm
0.4" / 11 mm
1.9" / 49 mm
0.5" / 13 mm
6.1" / 155 mm
Upper fastening point
Lower fastening point

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InstallationIndications, functions and optionsMessages Operation and function
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:
3TRONGELECTROMAGNETIClELDSCANIMPAIRTHEFUNCTIONOFTHECONTROLLER
ÎMake sure the controller as well as the system are not exposed to
STRONGELECTROMAGNETIClELDS
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
point (centres 130 mm).
ÎInsert lower wall plug.
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
page 6).
ÎPut the cover on the housing.
ÎAttach with the fastening screw.
display
button
T2A fuse
cable glands and
strain relief
cover

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Installation Indications, functions and options MessagesOperation and function
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 compo-
nents!
ÎTake care to discharge properly before touching the in-
side of the device!
Note:
Connecting the device to the power supply must always be the last step
of the installation!
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.
Do not use the device if it is visibly damaged!
4HEPOWERSUPPLYOFTHEDEVICEMUSTBEx6^x(Z!TTACHmEXIBLE
cables to the housing with the enclosed strain relief and the corresponding screws.
The controller is equipped with 1 semiconductor relay to which a load such as a
pump, a valve, etc. can be connected:
• Relay 1
18 = Conductor R1
17 = Neutral conductor N
13 = Grounding terminal
The mains connection is at the following terminals:
19 = Neutral conductor N
20 = Conductor L
12 = Grounding terminal
The terminals marked PWMARECONTROLOUTPUTSFORAHIGHEFlCIENCYPUMP
7 = PWM -
8 = PWM +
Speed control of a HE pump is possible via a PWM signal.The pump has to be con-
nected to the relay as well as to the PWM output of the controller. Power supply
to the HE pump is effected by switching the relay on or off.
VBus®
IP 20
T2A
220 ... 240 V~
50-60 Hz
Temp. Sensor Pt1000
S1 S2 S3 PWM R1VBus
1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20
N N L
R1 1 (1) A 220 ... 240V~
DeltaSol BS HE
mains terminals
Fuse
load terminals
sensor terminals grounding
terminals
Connect the temperature sensors (S1 to S3) to the corresponding terminals
with either polarity:
1 / 2 = Sensor 1 (e. g. collector sensor)
3 / 4 = Sensor 2 (e. g. store sensor)
5 / 6 = Sensor 3 (e. g. store sensor top)
2.3 Data communication / Bus
The controller is equipped with the VBus®for data transfer and energy supply
to external modules.The connection is to be carried out at the terminals marked
VBus (any polarity).
One or more VBus®modules can be connected via this data bus, such as:
• DL2 Datalogger
• DL3 Datalogger
Furthermore, the controller can be connected to a PC or integrated into a network
via the VBus®/USB or VBus®/LAN interface adapter (not included).
Note:
More accessories on page 20.

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InstallationIndications, functions and optionsMessages Operation and function
2.4 System: 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 (DT O), the solar pump will be activated by the
relay, and the store will be loaded until the switch-off temperature difference (DTF)
or the maximum store temperature (S MX) is reached.
Sensor S3 can optionally be connected for measurement purposes.
If heat quantity measurement (OHQM) is activated, S3 is to be used as the return
sensor.
Netz
Mains
3322 2 2
S1 S2 S3 PWM R1VBus
1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20
N N L
S1
S2
R1
S3

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Installation Indications, functions and options MessagesOperation and function
Display channels
Channel Description Connection
terminal Page
COL x Temperature collector S1 11
TST x Temperature store S2 11
S3 x Temperature sensor 3 S3 11
TR x* Temperature return sensor S3 11
n % x Speed R1 R1 11
hP x Operating hours R1 R1 11
kWh x* Heat quantity in kWh - 11
MWh x* Heat quantity in MWh - 11
Adjustment channels
Channel Description Factory setting Page
DT O x Switch-on temperature difference 6.0 K 12
DT F x Switch-off temperature difference 4.0 K 12
DT S x Set temperature difference 10.0 K 12
RIS x Rise 2 K 13
S MX x Maximum store temperature 60 °C 13
EM x Collector emergency temperature 130 °C 13
OCX x Collector cooling option OFF 14
CMX x* Maximum collector temperature 110 °C 14
OCN x Collector minimum limitation option OFF 14
CMN x* Collector minimum temperature 10 °C 14
OCF x Antifreeze option OFF 14
CFR x* Antifreeze temperature 4.0 °C 14
OREC x Recooling option OFF 15
O TC x Tube collector option OFF 15
OHQM x Heat quantity measurement option OFF 15
FMAX x* -AXIMUMmOWRATE 6.0 l 15
MEDT x* Antifreeze type 1 15
MED% x* Antifreeze concentration
(only if MEDT = propylene or ethylene glycol)
45 % 15
nMX x* Maximum speed relay 1 100 % 16
nMN x Minimum speed relay 1 30 % 16
MAN x Manual mode R1 Auto 16
LANG x Language dE 16
VERS Version number
Legend:
Symbol Description
x Channel is available
x* Channel is available, if the corresponding option is activated.

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InstallationIndications, functions and optionsMessages Operation and function
3 Operation and function
3.1 Buttons
2 backwards (-)
1 forwards (+)
3 (selection /
CONlRMATION
Operating control
LED
The controller is operated via the 3 push buttons below the display.
Button 1 (+) - Scrolling forwards, increasing adjustment values.
Button 2 (-) - Scrolling backwards, reducing adjustment values.
Button 3 (OK) -CONlRMINGSELECTING
During normal operation, display channels will be displayed.
ÎIn order to scroll between display channels, press buttons 1 and 2.
Access to adjustment channels:
ÎUse button 1 in order to scroll to the last display channel, then press and hold
down button 1 for approx. 2 s.
If an adjustment channel is shown on the screen, will be displayed on the
right-hand side next to the channel name.
ÎPress button 3 in order to select an adjustment channel.
STARTSmASHING
ÎAdjust the desired value with buttons 1 and 2.
Î"RIEmYPRESSBUTTON
permanently appears, the adjusted value has been saved.
4 System-Monitoring-Display
System-Monitoring-Display
The System-Monitoring-Display consists of 3 blocks: channel display, tool bar and
system screen.
Channel display
The channel display consists of 2 lines. The upper display line is an alphanumeric
16-segment display. In this line, mainly channel names and menu items are displayed.
In the lower 16-segment display, values are displayed.
Tool bar
The additional symbols in the tool bar indicate the current system state.

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Installation Indications, functions and options MessagesOperation and function
4.1 System screen
The system selected is indicated in the System-Monitoring-Display. It consists of
several system component symbols which are – depending on the current status of
THESYSTEMnEITHERmASHINGPERMANENTLYSHOWNORNOTINDICATED
Collector
with collector sensor
Temperature sensor
Store
with heat exchanger
Pump
4.2 Other indications
System screen
• 0UMPSYMBOLISmASHINGWHENTHERELAYISACTIVE
• 3ENSORSYMBOLS ARE mASHING IFTHECORRESPONDINGSENSORDISPLAY CHANNELIS SE-
lected
• 3ENSORSAREmASHINGQUICKLYINTHECASEOFASENSORFAULT
Operating control LED
Green: Everything OK
2EDGREENmASHING )NITIALISATIONACTIVE
Manual mode
2EDmASHING 3ENSORFAULTSENSORSYMBOLISmASHINGQUICKLY
Permanently
shown
Flashing Status indications:
Relay 1 active
Maximum store temperature exceeded
+ Store emergency shutdown active
Collector emergency shutdown active
  Collector cooling active
  Recooling active
Collector minimum limitation active
Antifreeze function activated
  Antifreeze function active
+   Manual mode relay 1 ON
  Manual mode relay 1 OFF
  Sensor fault

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InstallationIndications, functions and optionsMessages Operation and function
5 Channel overview
5.1 Display channels
Note:
The display and adjustment channels as well as the adjustment ranges de-
pend on the functions and options as well as on the system components
connected to the controller.
Display of collector temperatures
COL
Collector temperature
Display range: -40 … + 260 °C
Indicates the collector temperature.
Display of store temperatures
TST
Store temperature
Display range: -40 … + 260 °C
Indicates the store temperature.
Display of sensor S3
S3
Sensor temperature
Display range: -40 … + 260 °C
Indicates the current temperature at the additional sensor (without control function).
Note:
Only if a sensor is connected to the corresponding terminal, will a value
be displayed.
Indication of return temperature
TR
Return temperature
Display range: -40 … + 260 °C
If the heat quantity measurement is activated, the temperature at sensor S3 will be
indicated as TR.
Indication of current pump speed
n %
Current pump speed
Display range: 20 … 100 %
Indicates the current pump speed.
Display of heat quantity
kWh / MWh
Heat quantity in kWh / MWh
Display channel
Indicates the heat quantity produced in the system.For this purpose, the heat quan-
TITYMEASUREMENTOPTIONHASTOBEENABLED4HEmOWRATEASWELLASTHEVALUESOF
THEREFERENCESENSORSmOWANDRETURNAREUSED FOR CALCULATING THE HEAT QUANTITY
supplied. It is shown in kWh in the kWh channel and in MWh in the MWh channel.
The overall heat quantity results from the sum of both values.

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Installation Indications, functions and options MessagesOperation and function
The accumulated heat quantity can be set back to zero.As soon as one of the dis-
play channels of the heat quantity is selected, the symbol is displayed.
ÎIn order to access the reset mode of the counter, press button 3 for approx. 2 s.
STARTSmASHINGANDTHEHEATQUANTITYVALUEWILLBESETBACKTOZERO
Î)NORDERTOlNISHTHERESETPROCESSPRESSBUTTON
In order to interrupt the reset process, do not press any button for about 5 s.The
display returns to the display mode.
Operating hours counter
h P
Operating hours counter
Display channel
The operating hours counter accumulates the operating hours of the correspond-
ing relay (h P).
Full hours are displayed.
The accumulated operating hours can be set back to zero.As soon as the operating
hours channel is selected, the symbol is displayed.
ÎIn order to access the reset mode of the counter, press button 3 for approx. 2 s.
STARTSmASHINGANDTHEOPERATINGHOURSVALUEWILLBESETBACKTOZERO
Î)NORDERTOlNISHTHERESETPROCESSPRESSBUTTON
In order to interrupt the reset process, do not press any button for about 5 s.The
display returns to the display mode.
5.2 Adjustment channels
'T control
DT O
Switch-on temperature difference
Adjustment range: 1.0 … 20.0 K
Factory setting: 6.0 K
The controller works as a standard differential controller. If the temperature reach-
es or exceeds the switch-on temperature difference, the pump switches on.When
the temperature difference reaches or falls below the adjusted switch-off tempera-
ture difference, the respective relay switches off.
Note:
The switch-on temperature difference must be at least 0.5K higher than
the switch-off temperature difference.
DT F
Switch-off temperature difference
Adjustment range: 0.5 … 19.5 K
Factory setting: 4.0 K

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InstallationIndications, functions and optionsMessages Operation and function
Speed control
DT S
Set temperature difference
Adjustment range: 1.5 … 30.0 K
Factory setting: 10.0 K
Note:
For pump speed control, the operating mode of the relay must be set to
AUtO (adjustment channel MAN)!
RIS
Rise
Adjustment range: 1 … 20 K
Factory setting: 2 K
If the temperature difference reaches or exceeds the switch-on temperature differ-
ence, the pump switches on at 100% speed for 10 s.Then, the speed is reduced to
the minimum pump speed value.
If the temperature difference reaches the adjusted set value, the pump speed in-
creases by one step (10%).The response of the controller can be adapted via the
parameter Rise. Each time the difference increases by the adjustable rise value, the
pump speed increases by 10 % until the maximum pump speed of 100% is reached.
If the temperature difference decreases by the adjustable rise value, pump speed
will be decreased by one step.
Note:
The set temperature difference must be at least 0.5 K higher than the
switch-on temperature difference.
Maximum store temperature
S MX
Maximum store temperature
Adjustment range: 4 … 95 °C
Factory setting: 60 °C
If the store temperature reaches the adjusted maximum temperature, the store will
no longer be loaded in order to avoid damage caused by overheating.A hysteresis
of 2 K is set for the maximum store temperature.
If the maximum store temperature is exceeded, is displayed.
Note:
If the collector cooling or the system cooling function is activated, the ad-
justed maximum store temperature may be exceeded. In order to prevent
system damage, the controller is also equipped with an integrated store
emergency shutdown, deactivating the system if the store reaches 95°C.
Collector emergency shutdown
EM
Collector limit temperature
Adjustment range: 80 … 200 °C
Factory setting: 130 °C
When the collector temperature exceeds the adjusted collector limit tempera-
ture, the solar pump (R1) switches off in order to protect the system components
against overheating (collector emergency shutdown). If the maximum collector
temperature is exceeded, ISDISPLAYEDmASHING

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Installation Indications, functions and options MessagesOperation and function
Collector cooling
OCX
Collector cooling option
Adjustment range: OFF / ON
Factory setting: OFF
CMX
Collector maximum temperature
Adjustment range: 70 … 160 °C
Factory setting: 110 °C
The collector cooling function keeps the collector temperature within the operat-
ing range by heating the store. If the store temperature reaches 95 °C the function
will switch off for safety reasons.
If the store temperature exceeds the adjusted maximum store temperature, the
solar system is switched off. If the collector temperature increases to the adjusted
maximum collector temperature, the solar pump is activated until the collector
temperature falls below the maximum collector temperature. The store tempera-
ture may then exceed the maximum temperature, but only up to 95°C (emergency
shutdown of the store).
If the collector cooling function is active, and AREDISPLAYEDmASHING
Note:
The cooling function will not become active as long as solar loading is
possible.
Minimum collector limitation
OCN
Collector minimum limitation option
Adjustment range: OFF / ON
Factory setting: OFF
CMN
Minimum collector temperature
Adjustment range: 10.0 … 90.0 °C
Factory setting: 10 .0 °C
If the collector minimum limitation option is activated, the pump (R1) will only
be switched on if the adjustable collector minimum temperature is exceeded.The
minimum temperature prevents the pump from being switched on too often at low
collector temperatures.A hysteresis of 5 K is set for this function.
If the collector minimum limitation is active, ISDISPLAYEDmASHING
Note:
If OCF is active, the collector minimum limitation will be overridden. In
that case, the collector temperature may fall below CMN.
Antifreeze function
OCF
Antifreeze option
Adjustment range: OFF / ON
Factory setting: OFF
CFR
Antifreeze temperature
Adjustment range: -40.0 … + 10.0 °C
Factory setting: + 4.0 °C
The antifreeze function activates the loading circuit between the collector and the
store when the temperature falls below the adjusted antifreeze temperature.This
WILLPROTECTTHEmUIDAGAINSTFREEZINGORCOAGULATING)FTHEADJUSTEDANTIFREEZETEM-
perature is exceeded by 1K, the loading circuit will be deactivated.
If the antifreeze function is activated, is displayed. If the antifreeze function is
active, and AREDISPLAYEDmASHING
Note:
Since this function uses the limited heat quantity of the store, the anti-
freeze function should only be used in regions with few days of tempera-
tures around the freezing point.
The antifreeze function will be suppressed if the store temperature falls
below +5°C in order to protect the store from frost damage.

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InstallationIndications, functions and optionsMessages Operation and function
Recooling function
OREC
Recooling option
Adjustment range: OFF / ON
Factory setting: OFF
When the recooling function is activated, the controller aims to cool down the
store during the night in order to prepare it for solar loading on the following day.
If the adjusted maximum store temperature (S MX) is exceeded and the collector
temperature falls below the store temperature, the system will be reactivated in
order to cool down the store. Cooling will continue until the store temperature has
fallen below the adjusted maximum store temperature (S MX) again.A hysteresis of
2 K is set for the recooling function.
Reference thresholds for the recooling function are DT O and DT F.While recool-
ing is active, und mASHINGWILLBEINDICATEDONTHEDISPLAY
Tube collector function
OTC
Tube collector function
Adjustment range: OFF / ON
Factory setting: OFF
If the controller detects an increase by 2 K compared to the previously stored col-
lector temperature, the solar pump will be switched on for about 30 s in order to
DETECTTHEmUIDTEMPERATURE4HECURRENTCOLLECTORTEMPERATUREWILLTHENBESAVED
as a new reference value. If the measured temperature (new reference value) is
exceeded by 2K, the solar pump will again run for 30 s. If the switch-on difference
between the collector and the store is exceeded during the runtime of the solar
pump or the loading break, the controller will automatically switch to solar loading.
If the collector temperature decreases by 2 K during a loading break, the switch-on
value for the tube collector function will be recalculated.
Heat quantity measurement
OHQM
Heat quantity measurement
Adjustment range: OFF / ON
Factory setting: OFF
FMAX
Flow rate in l/min
Adjustment range: 0.5 … 100.0
Factory setting: 6.0
MEDT
(EATTRANSFERmUID
Adjustment range: 0 … 3
Factory setting: 1
MED%
Antifreeze ratio
in Vol-% (MED% is not indicated when
MEDT 0 or 3 is used.)
Adjustment range: 20 … 70 %
Factory setting: 45 %
If OHQM is activated, the heat quantity gained can be calculated and displayed.Heat
QUANTITYMEASUREMENTISPOSSIBLEIFAmOWMETERISUSED
4HEHEATQUANTITYBALANCINGESTIMATIONUSESTHEDIFFERENCEBETWEENTHEmOWAND
RETURNTEMPERATURESANDTHEENTEREDmOWRATEATPUMPSPEED
Î2EADTHEmOWRATELMINANDADJUSTITINTHEFMAX channel.
Î!DJUSTTHEANTIFREEZETYPEANDCONCENTRATIONOFTHEHEATTRANSFERmUIDINTHE
channels MEDT and MED%.
(EATTRANSFERmUID
0: Water
1: Propylene glycol
2: Ethylene glycol
3: Tyfocor®LS / G-LS

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Installation Indications, functions and options MessagesOperation and function
Maximum speed
nMX
Maximum speed
Adjustment range: 22 … 100 %
Factory setting: 100 %
A relative maximum pump speed can be allocated to the PWM output via the
adjustment channel nMX.
Minimum speed
nMN
Minimum speed
Adjustment range: 20 … 98 %
Factory setting: 30 %
A relative minimum pump speed can be allocated to the PWM output via the ad-
justment channel nMN.
Operating mode
MAN
Operating mode
Adjustment range: OFF, AUtO, ON
Factory setting: AUtO
For control and service work, the operating mode of the relay can be manually ad-
justed. For this purpose, select the adjustment channel MAN in which the following
adjustments can be made:
Operating mode
OFF : Relay off mASHING
Auto : Relay in automatic operation
ON : Relay off mASHING
Note:
Always adjust the operating mode back to AUtO when the control and
service work is completed. Normal operation is not possible in manual
mode.
Language
LANG
Language selection
Selection: dE, En
Factory setting: dE
In this adjustment channel the menu language can be selected.
• dE : Deutsch
• En : English

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InstallationIndications, functions and optionsMessages Operation and function
If a malfunction occurs, the display symbols will indicate an error code:
T2A fuse
°C ȍ°C ȍ
-10 961 55 1213
-5 980 60 1232
0 1000 65 1252
5 1019 70 1271
10 1039 75 1290
15 1058 80 1309
20 1078 85 1328
25 1097 90 1347
30 1117 95 1366
35 1136 100 1385
40 1155 105 1404
45 1175 110 1423
50 1194 115 1442
Resistance values of
Pt1000 sensors
The symbol is indicated on the display and the symbol ISmASHING
Sensor fault. An error code instead of a temperature is shown on the sensor
display channel.
Disconnected Pt1000 temperature sensors can be checked with an ohmmeter.
Please check the resistance values correspond with the table.
Cable is broken. Check the cable. Short circuit. Check the cable.
- 88.8888.8
Operating control LED is permanently off.
Check the power supply of the controller. Is it disconnected?
no
The fuse of the controller could be
blown.The fuse holder (which holds
the spare fuse) becomes accessible
when the cover is removed.The fuse
can then be replaced.
yes
Check the supply line and recon-
nect it.
6 Troubleshooting

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Installation Indications, functions and options MessagesOperation and function
Pump starts for a short moment, switches off, switches on again, etc.
Temperature difference at the con-
troller too small?
no yes
Wrong position of collector
sensors?
yes
Change 'Ton and 'Toff corre-
spondingly.
Mount the collector sensor at
SOLARmOWWARMESTCOLLECTOR
output); use immersion sleeve of the
respective collector.
no
Plausibility control of the option
tube collector function
o.k.no
0UMPISOVERHEATEDBUTNOHEATTRANSFERFROMTHECOLLECTORTOTHESTOREmOW
and return have the same temperature; perhaps also bubbling in the lines.
Vent the system; increase the
system pressure to a static primary
pressure of at least plus 0.5 bar
[7.25 psi]; if necessary continue to
increase the pressure; switch the
pump on and off for a short time.
Air or gas bubbles in the system?
no yes
Are the valves or the non-return
valves defective or is the dirt trap
blocked? yes Clean the dirt trap or replace
defective component
Pump starts up very late.
The temperature difference between store and collector increases enormously
during operation; the collector circuit cannot dissipate the heat.
Collector circuit pump/ zone valve
defective?
no yes
(EATEXCHANGERCALCIlED
yes
Check or replace, if necessary
Decalcify it
no
Heat exchanger blocked?
yesno Clean it
Heat exchanger too small?
yes Replace with correctly sized one.
Change 'Ton and 'Toff corre-
spondingly.
Switch-on temperature difference
'Ton too large?
no yes
Non-ideal position of the collector
SENSOREGmATSCREWSENSORINSTEAD
of sensor in immersion sleeves). Put the solar pump (R1) into the
manual mode On for a short time
during irradiation. Check whether
THECOLLECTORTEMPERATURESIGNIl-
cantly increases.
yes
o.k.
no
Minimum limitation active

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InstallationIndications, functions and optionsMessages Operation and function
Stores cool down at night.
Collector circuit pump runs during
the night?
no yes Check the controller.
Collector temperature at night is
higher than the outdoor temper-
ature.
no yes
Check the non-return valves in
THEmOWANDTHERETURNPIPEFOR
FUNCTIONALEFlCIENCY
3UFlCIENTSTOREINSULATION
yes no Increase insulation.
Insulation close enough to the
store?
yes no Replace insulation or increase it.
Are the store connections insulated?
yes no Insulate the connections.
7ARMWATEROUTmOWUPWARDS
no yes
Change connection and let the
WATERmOWSIDEWARDSORTHROUGH
a siphon (downwards); less store
losses now?
Does the DHW circulation run for
a very long time?
no yes
Use the circulation pump with
timer and switch-off thermostat
ENERGYEFlCIENTCIRCULATION
Circulation pump and blocking valve
should be switched off for 1 night;
less store losses?
yes no
Check whether the pumps of the
after-heating circuit run at night;
check whether the non-return valve
is defective; problem solved?
no
no yes
o.k.
Check the non-return valve in warm
water circulation - o.k.
yes no
Further pumps which are connect-
ed to the solar store must also be
checked.
The gravitation circulation in the
circulation line is too strong; insert
a stronger valve in the non-return
valve or an electrical 2-port valve
behind the circulation pump; the
2-port valve is open when the pump
Clean or replace it.
is activated, otherwise it is closed;
connect pump and 2-port valve
electrically in parallel; activate the
circulation again. Deactivate pump
speed control!
The solar circuit pump does not work, although the collector is considerably
warmer than the store.
Is the display working?
yes no
Does the pump start up in manual
operation?
yes
There is no current; check fus-
es / replace them and check power
supply.
The adjusted temperature differ-
ence for starting the pump is to
high; choose a value which makes
more sense.
no
Is the pump current enabled by the
controller?
yes Is the pump stuck?
Turn the pump shaft using a screw-
driver; now passable?
Pump is defective - replace it.
Controller fuse ok?
Controller might be defective -
replace it.
no yes
no
no yes
Replace fuse
a
a
b
b

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7 Accessories
Sensors AM1 Alarm Module
SD3 Smart Display/GA3
Large Display
DL2 Datalogger
VBus®/ USB & VBus®/ LAN
interface adapters
Overvoltage protection
device
KM1 Communication
module