Weishaupt WRSol 1.0 User manual

Weishaupt Solar Controller WRSol 2.0 83258302 - 1/2008
Installation and operating instructions
manual

2
Conformity Certification to ISO/IEC Guide 22
4800000001
Manufacturer: Max Weishaupt GmbH
Address: Max-Weishaupt-Straße
D-88475 Schwendi
Product: Solar controller
WRSol 1.0
WRSol 2.0
The product described above conforms to:
Document No. DIN EN 60730-1, -2-9
DIN EN 61000-6-1, -6-3
In accordance with the directives
LVD 2006 / 95 / EC
EMC 2004 / 108 / EC
this product is labelled as follows
Schwendi, 09.07.2008
ppa. ppa.
Dr. Lück Denkinger

3
1 Safety instructions 5
2About the Weishaupt solar controller WRSol 2.0 6
2.1 What does the solar controller do 6
2.2 What you have to observe 6
3 Installation and connection 7
3.1 Scope of delivery 7
3.2 Wall mounted installation 7
3.3 Commissioning 8
3.4 Electrical connection 8
4 Hydraulic variations 12
5 Operation 46
5.1 Display and operating elements 46
5.2 Navigation / menu structure (change hydraulic variation) 46
5.3 Where do I find what… 47
5.4 Display 50
5.5 Change, allocate and call up timer programs 52
6 Parameter 54
6.1 Select type of operation 54
6.2 Select temperature and values 55
6.3 Change settings 60
6.4 Timer program DHW 68
6.5 Timer program for legionella function 69
6.6 Timer program for circulation pump activation 70
6.7 Test outputs 71
6.8 Select options 74
6.9 Display faults 76
6.10 Language selection 76
7Functions 77
7.1 Collector protection 77
7.2 Energy management via the MFA output 78
7.3 Fault transmission 79
7.4 Pump standby protection 79
7.5 Reference value of pump speed control
in conjunction with collectors 79
7.6Pump control in conjunction with a solid fuel boiler 80
7.7 Solid fuel boiler functions 81
7.8 Manual function 82
7.9Calculating the energy yield 82
7.10 Determining the energy yield 82
7.11 Collector bypass function with 3 way valve (VBY) 83
7.12 Priority Solar Loading 83
7.13 Legionella function 84
7.14 DHW function 84
7.15 DHW circulation 84
7.16 Load function DHW storage tank
via plate heat exchanger 85
7.17 DHW via plate heat exchanger 85
7.18 Retrieval function 85
7.19 Bi-directional loading between several tanks 85
7.20 Heating return temperature increase 85
7.21 Collector cascade 85
1
2
3
4
5
6
7
Contents

4
7 Functions (continued)
7.22 Switch over function calorifier tank, oil, gas boiler 86
7.23 WES function 86
7.24 Start optimisation function 86
8 8 What to do if…? 87
8.1 Fault messages (fault display) 87
8.2 Displays 89
8.3 Cause and rectification of faults 89
9 Technical data 90
9.1 Electrical data 90
9.2 Permissible ambient conditions 90
9.3 Dimensions 90
9.4 Temperature sensor data 91
9.4.1 Sensor characteristics 92
Appendix 93
Checklist 93
Commissioning log of adjustable parameters
‘Change settings’ (please complete) 94
Commissioning log of adjustable parameters
‘Options’ (please complete) 95
Timer program table 96
8
9
A
7

5
1Safety instructions 1
Your information pack
•You are holding the operating instructions of the solar
controller.
Please read these operating instructions carefully. They
will help you to fully utilise all functions of the solar
controller and to operate your solar installation to its
optimum.
•These instructions should be kept with the solar
controller.
Explanation of notes and symbols
This symbol is used to mark instructions,
which, if not followed, could result in death or
serious injury.
This symbol is used to mark instructions,
which, if not followed, could result in damage
to, or the destruction of the equipment and
environmental damage.
Permissible application
The controller is an electronic unit intended for use with
hydraulic switching in accordance with manufacturer
specifications.
Any other application is not permitted.
Dangers when using the equipment
Weishaupt products are manufactured in accordance with
the relevant existing standards and guidelines and the
recognised safety laws. However, improper use of the
equipment could endanger life of the user or a third party,
or result in damage to the plant.
To avoid unnecessary danger, the Weishaupt solar
controller (WRSol) should only be used
•for its intended purpose
•in a technically safe, fault free condition
•in compliance with all the information in the
installation and operating instructions
Faults, which could affect the safe operation, should be
rectified immediately.
Personnel training
Only competent personnel may work on the appliance.
Competent personnel according to this operating manual
are persons who are familiar with the installation,
mounting, setting and commissioning of the product and
have the necessary qualifications such as:-
•Training, instruction or authorisation to switch electrical
circuits and electrical devices on and off, to earth them
and to mark them in accordance with the safety
standards.
Informal safety measures
•Observe all information given in the operating
instructions.
•Also observe the instructions given in the installation
and operating instructions of the collectors.
•In addition to the installation and operating instructions,
local codes of practice should also be adhered to.
Special attention should be paid to the relevant
installation and safety guidelines given.
•All safety and danger notices should be kept in a
legible condition.
•Ask the installer to instruct you in the use of the solar
controller.
Electrical safety
•Before starting work - isolate plant and protect against
reactivation, check voltage is isolated, the unit is
earthed, and protected from adjacent equipment that
might still be under voltage!
•Work on the electrical supply should be carried out by
a qualified electrician.
•Electrical components should be checked during
servicing. Loose connections and heat damaged
cables should be dealt with immediately.
•Should it be necessary to carry out work on live parts,
country specific safety regulations must be observed.
A second person should be present to switch off the
mains supply in an emergency.
Alterations to the construction of the equipment
•No alterations to the equipment are to be made without
the approval of the manufacturer.
All conversions require written confirmation from
Max Weishaupt GmbH.
•Any parts not in perfect working order should be
replaced immediately.
•No additional components may be fitted, which have
not been tested for use with the equipment.
•Use only -weishaupt- replacement and connection
parts.
Settings
•Only settings as stipulated in these operating
instructions are permissible. Incorrect settings can
damage the solar system.
Guarantee and liability
Weishaupt will not accept liability or meet any guarantee
claims for personal injury or damage to property arising as
a result of one or more of the causes below:
•Failure to use the equipment as intended.
•Improper assembly, commissioning, operating or
servicing of the equipment.
•Failure to follow the information in the installation and
operating instructions.
•Alterations made to the construction of the equipment.
•Fitting additional components not tested or approved
for use with the equipment.
•Alterations made to the equipment.
•Improperly executed repairs.
•Acts of God.
•Damage caused by continued use despite the
occurrence of a fault.
•Use of non-original -weishaupt- spare parts.
DANGER
ATTENTION

6
About the Weishaupt solar controller WRSol 2.0
2
The Weishaupt solar controller (WRSol) allows
easy control of your solar system.
Some characteristics of the WRSol:
•Easy interrogation of information about the solar
system.
•Temperature setpoint defaults for DHW, frost
protection, calorifier, valve activation, legionella
and circulation.
•Easy reset to previously set values or to factory
settings.
•Recording possible with WRSol recording software.
•Speed controlled solar and/or solid fuel boiler pump.
The WRSol can be used as differential controller for:
•Solar DHW storage tank
•Solar calorifier storage tank
•Return temperature maintenance
•Swimming pool
•Solid fuel
•Storage tank cascade
•Collector cascade
•Charge reversal of two storage tanks
•Single layer function WES 900-C
Easy operation
Three levels are available to you:
•The standard display, in which up to three selected
values can be displayed.
•The selection menu level, for the selection of one of
seven menus from where the sub-menu level can be
accessed.
•The sub-menu level, where settings for additional
solar, return temperature increase, swimming pool and
solid fuel functions can be set.
2.1 What does the solar controller do
If programmed correctly, the controller, in conjunction with
the relevant hydraulic switching, will ensure that the
solar energy available is used correctly and that the need
for additional heat exchangers is largely avoided.
General operation of the system is possible once the
available hydraulic variation (system type) has been
entered. The parameters, control and safety function
relevant for the system type selected are preset
automatically. This allow immediate operation.
With the potential free contact (MFA output terminals 5
and 6) a fault can be reset, and a burner interlock
(exchanger interlock) or a request (exchanger release) can
be initiated.
Note: On system variation 20 the potential free
contact (MFA output) acts only as fault
output.
Setting on Multi funct. output :
9 or 10.
2.2 What you have to observe
Do not switch off the controller
Switching off the controller can damage the
solar system, if the system is filled with water.
(Frost protection no longer guaranteed).
The controller should only be shut down for
the duration of service and repair work.
Note: These operating instructions are valid only for
solar controller type WRSol 2.0
(see name plate).
ATTENTION

7
Installation and connection 3
3.2 Wall mounted installation
127,5mm
180,5mm
3.1 Scope of delivery
Included in delivery are:
•Controller WRSol 2.0
•Mounting parts for wall mounting
•Traction relief clamps incl. screws
•Collector sensors STF 225
(4 m, blue cable, -w- No. 660 229)
•3immersion sensors STF 222.2
(2.5 m, grey cable, -w- No. 660 228)
•Operating instructions WRSol 2.0
Note:
Screw in the top screw only so far that it is still possible to
hook in the controller.
Note: The sensors supplied are designed as
immersion sensors.
If site conditions require contact sensors,
these can be ordered under order
No. 660 302.
Contact sensors cannot be used as a
collector sensor.

8
3
3.3 Commissioning
3.4 Electrical connection
Terminal rail left (sensor) Terminal rail right (outputs / voltage supply)
Procedure:
1. Select hydraulic variation required.
➭Ch. 4
2. Carry out electrical connection in accordance with
the hydraulic variation selected.
➭Ch. 3.4; Ch. 4
3. Program the controller, if necessary, start with
language selection.
➭Ch. 6.10
4. Set the hydraulic variation selected under item one in
the controller.
➭Ch. 6.3
5. Activate overheat protection (recommendation).
➭Ch. 6.8
6. Activate other options as required where possible.
➭Ch. 6.8
7. Set time and timer programs
➭Ch. 6.3 … Ch. 6.6
8. Select all temperatures and values and check their
plausibility.
➭Ch. 6.2
9. Test and check all outputs in type of operation Manual
(the pump start of the solar pumps is not possible
above collector temperatures of 130°C, not even in
manual operation).
➭Ch. 6.7
10.Reset controller to type of operation Auto.
➭Ch. 6.1
11.Complete commissioning log in appendix.
12.Show customer the operation and functions of the
controller.
The WRSol 2.0 is constructed in such a way, that the
function of the controller and the type of setting
parameters can be set by selecting the relevant hydraulic
variation.
Only the selection menus and setting parameters required
for the hydraulic variation selected will then be displayed.
All other parameters are blanked out.
Connection
➭Remove terminal rail cover.
➭Connect
•sensor lines,
•MFAoutput,
•pump or change-over valve,
•voltage supply
according to the hydraulic variation installed
(Ch. 4).
➭Secure all connected cables with the traction reliefs
supplied.
➭Apply voltage, if fault message appears check sensor
connection, if necessary adjust hydraulic variation.
➭Refit terminal rail cover once the relevant cable cut-outs
have been opened, use screws (traction relief)
supplied.
Improper installation or repair attempts can
cause life-threatening conditions through
electric shock. The installation must only be
carried out by an electrician with the relevant
qualifications.
The unit and accessories must not be opened.
Repairs must only be carried out by the
manufacturer.
Voltage surge protection
The sensors connected do not require voltage surge
protection.
The flow and return of the solar system must be earthed.
DANGER

9
3
Note: Maximum loading for outputs 1 and 2 is
1 amp. Circuits with a higher current
consumption must be driven by an auxiliary
relay.
If an auxiliary relay or valve for return
temperature increase is fitted to outputs 1
and 2, parameter PS Speed Minimum must
be set to 100%. Additionally, an RFI
suppressor (-w- 701 890) must be connected
parallel to terminal 1/N and/or 2/N.
The internal unit fuse (F1) protects only the
outputs. The controller cannot be
de-energised via F1.
M
1~
(–) (+)
M
1~
2
1
ϑϑ ϑ ϑϑ ϑ ϑ
N
PE
PE
PE
PE
PE
N
N
N
4
M
1~
PKS/
PS
3
4NL3NL
6
5
2
1
N
L PE N
230V 1/N/PE 50Hz
F10
16A
S1
L
M
1~
X2 X1
THR/
TKR
16
15
PPS/
PLE
PPZ
TKO
4
3
VIZ
18
17
TBY/
TPO
14
13
TPU/
TZW
12
11
TKW/
TSO/
TZU
10
9
TSU/
TWW/
TZO
8
7
TFK/
TK2/
TKV/
TSB/
TWT
6
5
MFA
PWL
PZP
PFK
PKP/
PPS/
PS2/
PWT/
PWW/
PZW
F1
3,15A
VBY/
VRA/
VSB/
VSP/
VUP/
VPO/
Wiring diagram WRSol 2.0
eBus
Protective earthing
(Null potential
difference) to local
regulations
Legend
TBY Temperature sensor bypass (STF 222.2 -w- 660 228)
TFK Temperature sensor solid fuel boiler (STF 225 -w- 660 262)
THR Temperature sensor heat circuit return (STF 222.2 -w- 660 228)
TK2 Temperature sensor collector 2 (STF 225 -w- 660 262)
TKO Temperature sensor collector (STF 225 -w- 660 262)
TKR Temperature sensor collector return (STF 222.2 -w- 660 228)
TKV Temperature sensor collector supply (STF 222.2 -w- 660 228)
TKW Temperature sensor DHW cold (STF 222.2 -w- 660 228)
TPO Temperature sensor calorifier top (STF 222.2 -w- 660 228)
TPU Temperature sensor calorifier bottom (STF 222.2 -w- 660 228)
TSB Temperature sensor swimming pool (STF 222.2 -w- 660 228)
TSO Temperature sensor tank top (STF 222.2 -w- 660 228)
TSU Temperature sensor tank bottom (STF 222.2 -w- 660 228)
TWT Temperature sensor heat exchanger (STF 222.2 -w- 660 228)
TWW Temperature sensor DHW warm (STF 222.2 -w- 660 228)
TZO Temperature sensor add. calorifier top (STF222.2 -w- 660 228)
TZU Temperature sensor add. calorif. bottom STF222.2 -w- 660 228)
TZW Temperature sensor circulation (STF 222.2 -w- 660 228)
VIZ Volume impulse meter
Cable
blue
Cable
blue or grey
Cable
grey
Cable
grey
Cable
grey
Cable
grey
Cable
grey
Cable
grey
1Internal unit fuse 3.15A medium time lag
F10 Pre-fusing max. 16A
S1 Emergency switch
MFA Multi-function output (potential free)
PFK Pump solid fuel boiler
PKP Pump collector - calorifier
PKS Pump collector - storage tank
PLE Pump Legionella
PPS Pump Calorifier
PS2 Pump Solar 2
PS Pump Solar
PZW Pump DHW circulation
PWL Pump DHW loading
PWT Pump Heat exchanger
PWW Pump DHW
PPZ Pump calorifier - additional calorifier
PZP Pump additional calorifier - calorifier
VBY Bypass- valve
VPO Calorifier valve top
VRA Return temperature increase valve
VSB Swimming pool valve
VSP Storage tank - calorifier valve
VUP Change-over calorifier valve

10
3
Inputs and outputs of the individual hydraulic variations
Hydraulic Sensor terminal Outputs
variation 1/2 3/4 5/6 7/8 9/10 11/12 13/14 15/16 17/18 1/N 2/N 3/N 4/N 5/6
1eBus TKO TKV TSU – TZW – TKR VIZ PS PZW PWL PLE MFA
2eBus TKO TKV TSU – TZW TBY TKR VIZ PS PZW PWL VBY MFA
3eBus TKO TWT TSU – – – TKR VIZ PS PWT PWL – MFA
4eBus TKO TKV TSU – TPU – TKR VIZ PS PZW VSP PLE MFA
5eBus TKO TKV TSU TSO TPU TPO TKR VIZ PS PZW VSP PPS MFA
6eBus TKO TKV TSU – TPU TBY TKR VIZ PS PZW VSP VBY MFA
7eBus TKO TKV – TSO TPU TPO TKR VIZ PS PZW – PPS MFA
8eBus TKO TWT TSU – TPU – TKR VIZ PS PWT VSP - MFA
9eBus TKO TKV TSU – TPU TPO THR – PS PZW VSP VRA MFA
10 eBus TKO TKV TSU TSO TPU TPO THR – PS PPS VSP VRA MFA
11 eBus TKO TWT TSU TPU TPO THR – PS PWT VSP VRA MFA
12 eBus TKO TKV – – TPU – TKR VIZ PS – – – MFA
13 eBus TKO TKV – – TPU TBY TKR VIZ PS – – VBY MFA
14 eBus TKO TKV TWW TKW TPU TPO TKR VIZ PS PWW – – MFA
15 eBus TKO TKV – – TPU TPO THR – PS – – VRA MFA
16 eBus TKO TKV TWW TKW TPU TPO THR – PS PWW – VRA MFA
17 eBus TKO TKV TSU – TPU – TKR VIZ PS PZW PWL – MFA
18 eBus TKO TKV TSU – TPU TBY TKR VIZ PS PZW PWL VBY MFA
19 eBus TKO TKV TSU – TPU TPO THR – PS PZW PWL VRA MFA
20 eBus TKO TSB ––––TKRVIZ PS–––MFA
21 eBus TKO TSB TSU – TZW – TKR VIZ PS PZW PWL VSB MFA
22 eBus TKO TK2 TSU ––––– PSPS2PWLPLEMFA
23 eBus TKO TK2 TSU – – TBY – – PS PS2 PWL VBY MFA
24 eBus TKO TK2 TSU – TPU – – – PS PS2 VSP PLE MFA
25 eBus TKO TK2 TSU TSO TPU TPO – – PS PS2 VSP PPS MFA
26 eBus TKO TK2 TSU – TPU TBY – – PS PS2 VSP VBY MFA
27 eBus TKO TK2 TSU – TPU TPO THR – PS PS2 VSP VRA MFA
29 eBus TKO TK2 – – TPU – – – PS PS2 – – MFA
30 eBus TKO TK2 – – TPU TBY – – PS PS2 – VBY MFA
31 eBus TKO TK2 – – TPU TPO THR – PS PS2 – VRA MFA
32 eBus TKO TK2 TSU – TPU – – – PS PS2 PWL – MFA
33 eBus TKO TK2 TSU – TPU TBY – – PS PS2 PWL VBY MFA
34 eBus TKO TK2 TSU – TPU TPO THR – PS PS2 PWL VRA MFA
35 eBus TKO TFK TSU – TPU – TKR VIZ PS PFK VSP PLE MFA
36 eBus TKO TFK TSU TSO TPU TPO TKR VIZ PS PFK VSP PPS MFA
37 eBus TKO TFK TSU – TPU TBY TKR VIZ PS PFK VSP VBY MFA
38 eBus TKO TFK TSU – TPU TPO THR – PS PFK VSP VRA MFA
40 eBus TKO TFK – – TPU TPO TKR VIZ PS PFK VUP – MFA
41 eBus TKO TFK – – TPU TBY TKR VIZ PS PFK – VBY MFA
42 eBus TKO TFK – – TPU TPO THR – PS PFK – VRA MFA
43 eBus TKO TFK TSU – TPU – TKR VIZ PS PFK PWL – MFA
44 eBus TKO TFK TSU – TPU TBY TKR VIZ PS PFK PWL VBY MFA
45 eBus TKO TFK TSU – TPU TPO THR – PS PFK PWL VRA MFA
48 eBus – TFK – – TPU TPO – – – PFK VUP – MFA
49 eBus – TFK – – TPU TPO THR – – PFK – VRA MFA
50 eBus TKO TK2 TSU TSO TPU TPO – – PS PS2 PWL PPS MFA
51 eBus TKO – TSU TSO TPU TPO – – PKS PKP PWL PPS MFA
52 eBus TKO TSB TSU – TPU – TKR VIZ PS PZW VSP VSB MFA
53 eBus TKO TKV TSU TSO TZW TPO TKR VIZ PS PZW PWL PPS/PLE MFA
54 eBus TKO TKV TSU TSO TZW – TKR VIZ PS PZW PWL – MFA
55 eBus TKO TKV TSU TSO TZW TBY TKR VIZ PS PZW PWL VBY MFA
56 eBus TKO TKV TSU TSO TZW TPO THR – PS PZW PWL VRA MFA
57 eBus TKO TFK TSU TSO TPU – TKR VIZ PS PFK PWL – MFA
58 eBus TKO TFK TSU TSO TPU TBY TKR VIZ PS PFK PWL VBY MFA
59 eBus TKO TFK TSU TSO TPU TPO THR – PS PFK PWL VRA MFA

11
3
Hydraulic Sensor terminal Outputs
variation 1/2 3/4 5/6 7/8 9/10 11/12 13/14 15/16 17/18 1/N 2/N 3/N 4/N 5/6
60 eBus TKO TKV – TSO TPU TPO TKR VIZ PS PZW VPO PPS MFA
61 eBus TKO TKV – TSO TPU TPO TKR VIZ PS PZW PWL PPS MFA
62 eBus TKO TKV – TSO TPU TPO THR – PS PPS PWL VRA MFA
63 eBus TKO TWT – TSO TPU TPO TKR VIZ PS PWT VPO PPS MFA
64 eBus TKO TWT – TSO TPU TPO TKR VIZ PS PWT PWL PPS MFA
65 eBus TKO TWT – – TPU TPO THR – PS PWT – VRA MFA
72 eBus TKO TKV TZO TZU TPU TPO TKR VIZ PS – PZP PPZ MFA
74 eBus TKO TK2 TZO TZU TPU TPO – – PS PS2 PZP PPZ MFA
76 eBus TKO TFK TZO TZU TPU TPO TKR VIZ PS PFK PZP PPZ MFA
80 eBus TKO TWT TZO TZU TPU TPO TKR VIZ PS PWT PZP PPZ MFA
84 eBus TKO TWT TSU TSO TPU TPO TKR VIZ PS PWT VSP PPS MFA

12
4Hydraulic variations
4
The following hydraulic variations are simplified
schematic drawings, therefore not all components
(gravity break, flow meter etc.) are included in the
drawing.
If non -weishaupt- components are used, the flow
direction must be determined to meet site specific
requirements.
1Energy yield calculation via volume impulse meter (VIZ)
2Legionella function
3Circulation
4Plate heat exchanger for loading circuit
5Plate heat exchanger DHW circuit
6Retrieval function
7Heating support
8By-directional loading
Collector Collector cascade
with bypass with bypass
Solid fuel boiler
DHW tank 1123 213 22223
1937
Calorifier 314 1314114017 48729 30
121427497317
1415
157
1657
6547
Energy storage tank WES-C 5413 5513 581571
5637 597
DHW tank and calorifier 5136 3713512 256
937 3616 277
1067 387506
1147
516
60136
61136
6267
63146
64146
DHW tank cascade 4123 613 24226
7136
814
531236
Calorifier cascade 80148 748
84146
Calorifier with hot water tank 1713 1813 441431, 45732, 34733
Energy storage tank WES-C 7218 7618
and calorifier
Swimming pool 201
Swimming pool and 2113
hot water tank
Swimming pool, 5213
hot water tank and calorifier

13
4
Variation 1: Dual stratification tank for DHW
Variation 2: Dual stratification tank for DHW with collector bypass
MFA
TKV*
TSU
TKO
eBus
TKO
PS
TKV*
TSU
TKR*
VIZ*
PLE*
TKR* VIZ*
PS
PLE*
X1:
N
1
N
2
N
3
N
4
5
6
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
TZW*
PZW*
PZW*
TZW*
PWL*
• Energy yield calculation (optional; ➭Ch. 7.10)
• Legionella function (optional; ➭Ch. 7.13)
• Circulation function with or without sensor
(optional; ➭Ch. 7.15)
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TSU). If a collector flow sensor (TKV) is fitted this
can be included in the control.
As soon as the temperature differential is greater than the
value set ( SSttoorraaggeeDDiiffff..OOnn), the solar pump is
switched on and the tank is topped up until the switch off
condition ( SSttoorraaggeeDDiiffff..OOffff) or the maximum
temperature of the storage tank has been reached.
Depending on the average pump speed and the minimum
storage tank temperature, the external heat exchanger can
be blocked via the potential free Multi-funct. Output
(MFA).
In addition an 18 hour block can be activated.
The DHW function (➭Ch. 7.14) can also influence the
MFA output.
Possible settings MFA output:
0, 1, 2, 3, 4, 7, 8, 9, 10, 11, 12
MFA
TKV*
TSU
TKO
eBus
TKO
PS
TKV*
TSU
TKR*
VIZ*
VBY
TKR* VIZ*
PS
VBY
TBY
TBY
AB
BA
PZW*
TZW*
M
PZW*
TZW*
PWL*
X1:
N
1
N
2
N
3
N
L
4
5
6
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
WW
KW
WW
KW
• Energy yield calculation (optional; ➭Ch. 7.10)
• Circulation function with or without sensor
(optional; ➭Ch. 7.15)
• Collector bypass function
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TSU). If a collector flow sensor (TKV) is fitted
this can be included in the control.
As soon as the temperature differential is greater than the
value set ( SSttoorraaggeeDDiiffff..OOnn), the solar pump is
switched on and the tank is topped up until the switch off
condition ( SSttoorraaggeeDDiiffff..OOffff) or the maximum
temperature of the storage tank has been reached.
Depending on the average pump speed and the minimum
storage tank temperature, the external heat exchanger can
be blocked via the potential free Multi-funct. Output
(MFA).
In addition an 18 hour block can be activated.
The DHW function (➭Ch. 7.14) can also influence the
MFA output.
The three way valve (VBY) is switched over depending on
the collector temperature (TKO) and the reference sensor
(TBY).
Possible settings MFA output:
0, 1, 2, 7, 8, 9, 10, 11, 12
*optional
*optional

14
4
MFA
TWT
TSU
TKO
e-Bus
TKO
PS
TWT
TSU
TKR*
VIZ*
PWT
TKR* VIZ*
PS
PWT
X1:
N
1
N
2
N
3
N
4
5
6
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
PWL*
PWL*
MFA
TKR*
TSU
eBus
TKO
PS
TKV*
TSU
TKR*
VIZ*
TPU
PS
PLE*
TKV*
VIZ*
TPU PLE*
VSP
VSP
TKO
PZW*
AB
BMA
PZW*
X1:
N
1
N
2
N
L
3
N
4
5
6
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
• Energy yield calculation (optional; ➭Ch. 7.10)
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TSU).
If the collector temperature (TKO) increases by the
Storage Diff. On above the Storage Temp.
Setpoint solar loading is started. The pump (PWT) runs
at minimum speed [30%], until the tank setpoint
temperature has been reached at the sensor (TWT).
If the temperature differential (TKO to TSU) is less than
Storage Diff. Off the pump switches off.
Depending on the average pump speed and the minimum
storage tank temperature, the external heat exchanger can
be blocked via the potential free Multi-funct. Output
(MFA).
In addition an 18 hour block can be activated.
The DHW function (Ch. 7.14) can also influence the MFA
output.
Possible settings MFA output:
0, 1, 2, 7, 8, 9, 10, 11, 12
•Energy yield calculation (optional; ➭Ch. 7.10)
•Legionella function (optional; ➭Ch. 7.12)
•Circulation function with sensor (optional; ➭Ch. 7.14)
•Three way valve
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TSU, TPU). If a collector return sensor (TKR) is
fitted this can be included in the control.
As soon as the temperature differential is greater than the
value set ( ... Diff. On ), the solar pump is switched on
and the tank is loaded.
Once the (... Temp. Setpoint) is reached, the three
way valve changes over and and loads the DHW storage
tank (calorifier) provided, in accordance with the priority
setting (➭Ch. 7.11).
Depending on the average pump speed and the minimum
storage tank temperature, the external heat exchanger can
be blocked via the potential free Multi-funct. Output
(MFA).
In addition an 18 hour block can be activated.
The DHW function (Ch. 7.14) can also influence the MFA
output.
By adding cold water the warm water from the DHW tank
is transferred into the dual stratification tank.
Possible settings MFA output:
0 – 12
Variation 3: DHW tank for DHW with plate heat exchanger
*optional
WW
KW
Variation 4: Storage tank cascade for domestic hot water
*optional
WW
KW

15
4
MFA
eBus
TKO
PS
TKV*
TSU
TPU
TPO
PS
VIZ*
TSO
PPS
VSP
TKO
TSU
TSO
TPU
TPO
VIZ*
TKR*
TKR*
TKV*
PPS
X1:
N
1
N
2
N
L
3
N
4
5
6
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
PZW*
PZW*
VSP
M
AB
BA
MFA
eBus
TKO
PS
TKV*
TSU
TPU
TBY
PS
VIZ*
VBY
VSP
TKO
TPU
VIZ*
TKR*
TKR* TKV*
TSU
TBY
X1:
N
1
N
2
N
L
3
N
L
4
5
6
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
VBY
M
AB
AB
VSP
M
AB
BA
PZW*
PZW*
•Energy yield calculation (optional; ➭Ch. 7.10)
•Circulation function (optional; ➭Ch. 7.14)
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TSU, TPU). If a collector flow sensor (TKV) is
fitted this can be included in the control.
As soon as the temperature differential is greater than the
value set ( ... Diff. On ), the solar pump is switched on
and the tank is loaded.
Once the(... Temp. Setpoint )is reached, the three
way valve changes over and and loads the calorifier (DHW
storage tank) provided, in accordance with the priority
setting (➭Ch. 7.12).
Depending on the average pump speed and the minimum
storage tank temperature, the external heat exchanger can
be blocked via the potential free Multi-funct. Output
(MFA).
In addition an 18 hour block can be activated.
The DHW function (Ch. 7.14) can also influence the MFA
output.
Using the charge reversal pump calorifier - storage tank
(PPS) the energy stored in the calorifier is utilised
depending on the Storage Actual value top (TSO)
and the Calorifier Actual value top (TPO)
(➭Ch. 7.19).
Possible settings MFA output:
0, 1, 2, 5, 6, 7, 8, 9, 10, 11, 12
KW
WW
•Energy yield calculation (optional; ➭Ch. 7.10)
•Circulation function with sensor (optional; ➭Ch. 7.15)
•Three way valve (collector bypass)
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TSU, TPU). If a collector flow sensor (TKV) is
fitted this can be included into the control.
As soon as the temperature differential is greater than the
value set ( ... Diff. On ), the solar pump is switched on
and the tank is loaded.
The three way valve (VBY) is switched over depending on
the collector temperature (TKO) and the reference sensor
(TBY). Once the ... Temp. Setpoint is reached, the
three way valve switches over and loads the DHW storage
tank provided, in accordance with the priority setting
(➭Ch. 7.12).
Depending on the average pump speed and the minimum
storage tank temperature, the external heat exchanger can
be blocked via the potential free Multi-funct. Output
(MFA).
In addition an 18 hour block can be activated.
The DHW function (Ch. 7.14) can also influence the MFA
output.
By adding cold water the warm water from the DHW tank
is transferred into the dual stratification tank.
Possible settings MFA output:
0, 1, 2, 5, 6, 7, 8, 9, 10, 11, 12
Variation 5: Storage tank cascade for DHW and retrieval function
*optional
WW
KW
Variation 6: Storage tank cascade for DHW with collector bypass
*optional

16
4
MFA
eBus
TKO
PS
TKV*
TPU
TPO
PS
VIZ*
TSO
PPS
TKO
TSO
TPU
TPO
VIZ*
TKR*
TKR*
TKV*
PPS
X1:
N
1
N
2
N
3
N
4
5
6
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
PZW*
PZW*
VSP
MFA
TSU
e-Bus
TKO
PS
TWT
TSU
TPU
PS
PWT
M
TPU
PWT
TWT
X1:
N
1
N
2
N
L
3
N
4
5
6
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
TKO
VSP
AB
BA
VIZ*
TKR*
VIZ*
TKR*
•Energy yield calculation (optional; ➭Ch. 7.10)
•Circulation function (optional; ➭Ch. 7.15)
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TPU). If a collector flow sensor (TKV) is
fitted this can be included into the control.
As soon as the temperature differential is greater than the
value set ( CCaalloorriiffiieerrDDiiffff..OOnn), the solar pump is
switched on and the tank is topped up, until the switch off
condition ( CCaalloorriiffiieerrTTeemmpp..OOffff) or the maximum
temperature of the storage tank has been reached.
Depending on the average pump speed and the minimum
storage tank temperature, the external heat exchanger can
be blocked via the potential free Multi-funct. Output
(MFA).
In addition an 18 hour block can be activated.
The DHW function (Ch. 7.14) can also influence the MFA
output.
By adding cold water the warm water from the DHW tank
is transferred into the dual stratification tank.
Using the charge reversal pump calorifier-tank (PPS) the
energy stored is transferred depending on the calorifier
temperature (TPO) and the storage tank temperature
(TSO) (➭Ch. 7.19).
Possible settings MFA output:
0, 1, 2, 5, 6, 7, 8, 9, 10, 11, 12
•Energy yield calculation (optional; ➭Ch. 7.10)
•Three way valve
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TSU, TPU).
As soon as the temperature differential is greater than the
value set ( ... Diff. On ), the solar pump is switched on
and the tank is loaded.
Once the (... Temp. Setpoint ) is reached, the three
way valve changes over and and loads the DHW storage
tank provided, in accordance with the priority setting (➭
Ch. 7.12).
If loading is on sensor TSU, pump PWT runs at lowest
speed (30%), until the storage tank setpoint temperature
has been reached at sensor TWT.
Depending on the average pump speed and the minimum
storage tank temperature, the external heat exchanger can
be blocked via the potential free Multi-funct. Output
(MFA).
In addition an 18 hour block can be activated.
The DHW function (Ch. 7.14) can also influence the MFA
output.
By adding cold water the warm water from the DHW tank
is transferred into the dual stratification tank.
Possible settings MFA output:
0, 1, 2, 5, 6, 7, 8, 9, 10, 11, 12
KW
WW
Variation 7: Storage tank sequence switching for DHW and retrieval function
*optional
WW
KW
Variation 8: Storage tank cascade for DHW via plate heat exchanger and calorifier
*optional

17
4
VSP
MFA
X1:
N
1
N
2
N
L
3
N
L
4
5
6
TSU
eBus
TKO
PS
TSU
TPU
PS
TPU
VRA
TPO
TPO
THR
M
THR
VRA
TKO
M
AB
AB
M
VSP
AB
BA
PZW*
PZW*
TKV*
TKV*
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
•Heating return temperature increase
•Three way valve
•Circulation function without sensor (optional; ➭Ch.7.15)
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference sen-
sor (TSU, TPU). If a collector flow sensor (TKV) is
fitted this can be included into the control.
As soon as the temperature differential is greater than the
value set ( ... Diff. On ), the solar pump is switched on
and the tank is loaded. Once the (... Temp. Setpoint) is
reached, the three way valve changes over and loads the
calorifier provided, in accordance with the priority
setting (➭Ch. 7.12).
Depending on the average pump speed and the minimum
storage tank temperature, the external heat exchanger can
be blocked via the potential free Multi-funct. Output
(MFA).
In addition an 18 hour block can be activated.
The DHW function (Ch. 7.14) can also influence the MFA
output.
With the three way valve used for return temperature
increase (VRA) the energy available from the calorifier can
be used depending on the calorifier temperature (TPO) and
the heating return sensor (THR).
Possible settings MFA output:
0, 1, 2, 5, 6, 7, 8, 9, 10, 11, 12
Variation 9: Storage tank cascade for DHW and heating support via three way valve
WW
KW
*optional
VSP
MFA
X1:
N
1
N
2
N
L
3
N
L
4
5
6
TSU
eBus
TKO
PS
TSU
TPU
PS
TPU
VRA
TPO
TPO
THR
M
THR
VRA
TKO
M
AB
AB
M
VSP
AB
BA
PPS
PPS
TKV*
TKV*
TSO
TSO
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
•Heating return temperature increase
•Three way valve
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TSU, TPU). If a collector supply sensor (TKV) is
fitted this can be included into the control.
As soon as the temperature differential is greater than the
value set ( ... Diff. On ), the solar pump is switched on
and the tank is loaded. Once the (... Temp. Setpoint)
is reached, the three way valve changes over and loads
the calorifier provided, in accordance with the priority
setting (➭Ch. 7.12).
Depending on the average pump speed and the minimum
storage tank temperature, the external heat exchanger can
be blocked via the potential free Multi-funct. Output
(MFA).
In addition an 18 hour block can be activated.
The DHW function (Ch. 7.14) can also influence the MFA
output.
With the three way valve used for return temperature
increase (VRA) the energy available from the calorifier can
be used depending on the calorifier temperature (TPO)
and the heating return sensor (THR). Using the charge
reversal pump calorifier-tank (PPS) the energy stored is
transferred depending on the calorifier temperature (TPO)
and the storage tank temperature (TSO) (➭Ch. 7.19).
Possible settings MFA output:
0, 1, 2, 5, 6, 7, 8, 9, 10, 11, 12
Variation 10: Storage tank cascade for DHW, heating support via three way valve and retrieval function
WW
KW
*optional

18
4
A
MFA
X1:
N
1
N
2
N
L
3
N
L
4
5
6
TSU
eBus
TKO
TPO
PS
PS
PWT
TWT
TSU
TPU
TPU
TPO
VRA
VSP
VRA
M
THR
M
M
TWT
THR
TKO
VSP
PWT
AB
BA
AB
B
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
•Three way valve
•Heating return temperature increase
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TSU, TPU).
As soon as the temperature differential is greater than the
value set ( ... Diff. On ), the solar pump is switched on
and the tank is loaded. Once the (... Temp. Setpoint)
is reached, the three way valve changes over and loads
the calorifier provided, in accordance with the priority
setting (➭Ch. 7.12).
If loading is to sensor TSU the pump PWT runs at mini-
mum speed (30%), until the tank setpoint temperature has
been reached at the sensor (TWT).
Depending on the average pump speed and the minimum
storage tank temperature, the external heat exchanger can
be blocked via the potential free Multi-funct. Output
(MFA).
In addition an 18 hour block can be activated.
The DHW function (Ch. 7.14) can also influence the MFA
output.
With the three way valve used for return temperature
increase (VRA) the energy available from the calorifier can
be used depending on the calorifier temperature (TPO)
and the heating return sensor (THR).
Possible settings MFA output:
0, 1, 2, 5, 6, 7, 8, 9, 10, 11, 12
Variation 11: Storage tank cascade for DHW via plate heat exchanger and heating support
WW
KW
MFA
TKV*
TPU
TKO
eBus
TKO
PS
TKV*
TPU
TKR*
VIZ*
TKR* VIZ*
PS
X1:
N
1
N
2
N
3
N
4
5
6
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
•Energy yield calculation (optional; ➭Ch. 7.10)
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TPU). If a collector return sensor is fitted this can
be included in the control.
As soon as the temperature differential is greater than the
value set ( Calorifier Diff. On ), the solar pump is
switched on and the tank is topped up until the switch off
condition ( Calorifier Diff. Off ) or the maximum
temperature of the calorifier has been reached.
The external heat exchanger can be blocked via the
potential free Multi-funct. Output (MFA).
Possible settings MFA output:
0, 5, 6, 7, 8, 9, 10, 11, 12
Variation 12: DHW calorifier
*optional

19
4
MFA
TKV*
TPU
TKO
eBus
TKO
PS
TKV*
TPU
TKR*
VIZ*
VBY
TKR* VIZ*
PS
TBY
TBY
X1:
N
1
N
2
N
3
N
L
4
5
6
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
A
M
VBY B
AB
•Energy yield calculation (optional; ➭Ch. 7.10)
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TPU). If a collector return sensor (TKV) is fitted this
can be included in the control.
As soon as the temperature differential is greater than the
value set ( Calorifier Diff. On ), the solar pump is
switched on and the tank is topped up until the switch off
condition ( Calorifier Diff. Off ) or the maximum
temperature of the calorifier has been reached.
The three way valve (VBY) is changed over depending on
the collector temperature (TKO) and the reference
sensor (TBY).
The external heat exchanger can be blocked via the
potential free Multi-funct. Output (MFA).
Possible settings MFA output:
0, 5, 6, 7, 8, 9, 10, 11, 12
Variation 13: DHW calorifier with collector bypass
*optional
MFA
TKV*
TPU
TKO
eBus
TKO
PS
TKV*
TPU
TKR*
VIZ*
TKR* VIZ*
PS
TPO
TKW
TWW
TPO
TKW
TWW
X1:
N
1
N
2
N
3
N
4
5
6
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
PWW
PWW
•Energy yield calculation (optional; ➭Ch. 7.10)
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TPU). If a collector flow sensor (TKV) is fitted this
can be included in the control.
As soon as the temperature differential is greater than the
value set ( Calorifier Diff. On ), the solar pump is
switched on and the tank is topped up until the switch off
condition ( Calorifier Diff. Off ) or the maximum
temperature of the calorifier has been reached.
The plate heat exchanger pump (PWW) is switched on
when the cold water temperature (TKW) falls below 30°C
or the sensor short circuits.
The pump is switched over when the DHW temperature at
the (TWW) is greater than the tank setpoint temperature,
TKW exceeds 30°C or the short circuit at the sensor input
has been rectified.
The external heat exchanger can be blocked via the
potential free Multi-funct. Output (MFA).
Possible settings MFA output:
0, 5, 6, 7, 8, 9, 10, 11, 12
KW
WW
Variation 14: Calorifier for DHW via plate heat exchanger

20
4
MFA
TPU
TKO
eBus
TKO
PS
TPU
THR
PS
TPO
TPO
M
M
THR
VRA
VRA
X1:
N
1
N
2
N
3
N
L
4
5
6
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
AB
BA
TKV*
TKV*
•Heating return temperature increase
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TPU). If a collector return sensor (TKV) is fitted this
can be included in the control.
As soon as the temperature differential is greater than the
value set ( Calorifier Diff. On ), the solar pump is
switched on and the tank is topped up until the switch off
condition ( Calorifier Diff. Off ) or the maximum
temperature of the calorifier has been reached.
Using the three way valve for the return temperature in-
crease (VRA) the existing energy from the calorifier can be
used depending on the calorifier temperature (TPO) and
the heating return sensor (THR).
The external heat exchanger can be blocked via the
potential free Multi-funct. Output (MFA).
Possible settings MFA output:
0, 5, 6, 7, 8, 9, 10, 11, 12
Variation 15: Calorifier for heating circuit support
TKW
MFA
TPU
TKO
eBus
TKO
PS
TPU
THR
PS
TPO
TPO
M
M
THR
VRA
VRA
TWW
TKW
TWW
PWW
PWW
X1:
N
1
N
2
N
3
N
L
4
5
6
X2:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
AB
BA
TKV*
TKV*
•Heating return temperature increase
•DHW withdrawal via plate heat exchanger
The WRSol 2.0 determines the temperature differential
between the collector sensor (TKO) and the reference
sensor (TPU). If a collector return sensor (TKV) is fitted this
can be included in the control.
As soon as the temperature differential is greater than the
value set ( Calorifier Diff. On ), the solar pump is
switched on and the tank is topped up until the switch off
condition ( Calorifier Diff. Off ) or the maximum
temperature of the calorifier has been reached.
Using the three way valve for the return temperature in-
crease (VRA) the existing energy from the calorifier can be
used depending on the calorifier temperature (TPO) and
the heating return sensor (THR).
The plate heat exchanger pump (PWW) is switched on
when the cold water temperature (TKW) falls below 30°C
or the sensor short circuits.
The pump is switched off when the DHW temperature at
the (TWW) is greater than the tank setpoint temperature,
TKW exceeds 30°C or the short circuit at the sensor input
has been rectified.
The external heat exchanger can be blocked via the
potential free Multi-funct. Output (MFA).
Possible settings MFA output:
0, 5, 6, 7, 8, 9, 10, 11, 12
WW
KW
Variation 16: Calorifier for DHW via plate heat exchanger and heating circuit support
*optional
*optional
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