Taconova Tacosol Load EXA L User manual

CONTACT AND FURTHER INFORMATION TACONOVA.COM
Taconova Group AG | Neunbrunnenstrasse 40 | CH-8050 Zurich | T [phone] | F [phone] | [email protected]
TACOSOL LOAD EXA L
STORAGE LOADING STATION
CONTROLLER MANUAL
10/2014 | Art.-Nr. 209852 | EA-Nr. 1124

A. - Safety instructions 3
A.1. - EC declaration of conformity 3
A.2. - General instructions 3
A.3. - Explanation of symbols 3
A.4. - Changes to the unit 3
A.5. - Warranty and liability 4
A.6. - About the controller 4
A.7. - Scope of supply 4
A.8. - Disposal and pollutants 4
B. - Description of controller 5
B.1. - Specifications 5
B.2. - Temperature resistance table
for Pt1000 sensors 5
C. - Installation 6
C.1. - Wall installation 6
C.2. - Electrical connection 7
C.3. - Installing the temperature sensors 8
C.4. - RC 21 Remote adjuster with thermostat 9
D. - Terminal connection 10
D.1. - Terminal connection 10
D.2. - Terminal connection diagram 10
D.3. - Hydraulic variants / Schemes / Systems11
E. - Operation 19
E.1. - Display and input 19
E.2 Commissioning help 19
E.3 Free commissioning 20
E.4 Menu sequence and menu structure 20
1. - Measurement values 21
2. - Statistics 21
2.1. - Operating hours 21
2.2. - Heat output 21
2.3. - Graphic overview 21
2.4. - Message log 21
2.5. - Reset/clear 21
3. - Operating modes 22
3.1. - Automatic 22
3.2. - Manual 22
3.3. - Off 22
3.4. - Fill system 22
4. - Settings 23
4.1. - Tmin S (X) 23
4.2. - Tmax S (X) 23
4.3. - Tmax SB 23
4.4. - T Solar S (X) 23
4.5. - Priority S(X) 24
4.6. - T-priority 24
4.7. - Loading time 24
4.8. - Increase 24
5. - Protections / Protective functions 25
5.1. - System protection 25
5.2. - Collector protection 25
5.3. - Recooling 25
5.4. - Frostschutz 26
5.5. - Seizing protection 26
5.6. - Collector alarm 26
6. - Special functions 27
6.1. - Program selection 27
6.2. - Speed control 27
6.2.1. - Variant 27
6.2.2. - Type of pump 27
6.2.3. - Pump menu 28
6.2.3.1. - Pump 28
6.2.3.2. - Output Signal 28
6.2.3.3. - PWM off 28
6.2.3.4. - PWM on 28
6.2.3.5. - PWM Max 28
6.2.3.6. - 0-10V off 28
6.2.3.7. - 0-10V on 28
6.2.3.8. - 0-10V Max 28
6.2.3.9. - Speed when „On“ 28
6.2.3.10. - Show signal 28
6.2.4. - Purging time 29
6.2.5. - Sweep time 29
6.2.6. - max. speed 30
6.2.7. - min. speed 30
6.2.8. - Setpoint 30
6.3. - Solar bypass 30
6.3.1. - Variant 30
6.3.2. - Bypass (sensor) 30
6.4. - Thermostat 31
6.4.1. - TH Set 31
6.4.2. - TH hysteresis 31
6.4.3. - Thermostat sensor 1 31
6.4.4. - Thermostat sensor 2 31
6.4.5. - T eco 31
6.4.6. - Storage 31
6.4.7. - Energy saving mode 31
6.4.8. - Periods 31
6.5. - Cooling 32
6.5.1. - Co T set 32
6.5.2. - Co hysteresis 32
6.5.3. - Cooling (sensor) 32
6.5.4. - Periods 32
6.6. - Return flow increase 32
6.6.1. - RF Tmax 32
6.6.2. - T return flow 32
6.6.3. - Return flow (sensor) 32
6.6.4. - Storage (sensor) 32
6.7. - Collector field cooling 33
6.7.1. - Tmax field 33
6.7.2. - Hys min 33
6.7.3. - Hys max 33
6.7.4. - Field cooling sensor 33
6.8. - Anti Legionella 34
6.8.1. - AL T set 34
6.8.2. - AL residence time 34
6.8.3. - Last AL heat 34
6.8.4. - AL sensor 1 34
6.8.5. - AL Sensor 2 34
6.8.6. - AL-times 34
6.9. - Heat transfer 35
6.9.1. - T Heat transfer 35
6.9.2. - Setpoint 35
6.9.3. - HT Tmin 35
6.9.4. - HT Source (sensor) 35
6.9.5. - HT Drain (Target sensor) 35
6.10. - Difference 36
6.10.1. - T difference 36
6.10.2. - DF source (sensor) 36
6.10.3. - Diff Tmin 36
6.10.4. - DF Drain (sensor) 36
6.10.5. - DF Tmax 36
6.11. - Solid fuel boiler 37
6.11.1. - SF Tmax 37
6.11.2. - SF Tmin 37
6.11.3. - T SF 37
6.11.4. - Boiler sensor 37
6.11.5. - Storage sensor 37
6.12. - Error message 37
6.13. - Pressure monitor 38
6.13.1. - Pressure monitor 38
6.13.1.1. - RPS1 / RPS2 38
6.13.1.2. - Pmin 38
6.13.1.3. - Pmax 38
6.14. - Booster pump 38
6.14.1. - Filling time 38
6.15. - Parallel operation R (X) 38
6.15.1. - Delay 38
6.15.2. - Followup time 38
6.16. - Always on 39
6.17. - Heating circuit 39
6.17.1. - Room set day 39
6.17.2. - Room set night 39
6.17.3. - Room sensor 39
6.17.4. - Periods 39
6.18. - Heat quantity 40
6.18.1. - Flow sensor (X) 40
6.18.2. - Return sensor 40
6.18.3. - Anti freeze type 40
6.18.4. - Glycole percentage 40
6.18.5. - Flow rate (X) 40
6.18.6. - Offset T 40
6.18.7. - VFS (X) 40
6.18.8. - VFS - Position 40
6.18.9. - Reference sensor 40
6.18.10. - Pressure monitor 41
6.18.11. - Pressure monitor 41
6.18.11.1. - RPS1 / RPS2 41
6.18.11.2. - Pmin 41
6.18.11.3. - Pmax 41
6.19. - Sensor calibration 41
6.20. - Commissioning 41
6.21. - Factory settings 41
6.22. - SD-Card 42
6.22.1. - Logging 42
6.22.2. - Free storage 42
6.22.3. - Load configuration 42
6.22.4. - Save configuration 42
6.22.5. - Firmware update 42
6.22.6. - Unmount 42
6.23. - Start aid function 42
6.24. - Time and date 42
6.25. - Daylight saving time 42
6.26. - Sleep mode 43
6.27. - Ethernet 43
6.27.1. - Ethernet 43
6.27.2. - MAC Adress 43
6.27.3. - TCP/IP Adress 43
6.27.4. - Network Mask 43
6.27.5. - Gateway 43
6.27.6. - Login 43
6.28. - Temperature unit 43
7. - Menu lock 44
8. - Service values 44
9. - Languages 44
Z.1. Malfunctions with error messages 45
Z.2 Replacing the fuse 46
Z.3 Maintenance 46
Table of content

3
Safety instructions
By affixing the CE mark to the unit the manufacturer declares that the TSL240 conforms to the following relevant safety regulations:
- EC low voltage directive 2006/95/EC
- EC electromagnetic compatibility directive 2004/108/EC
Conformity has been verified and the corresponding documentation and the EC declaration of conformity are kept on file by the manuf-
acturer.
A.1. - EC declaration of conformity
These installation and operating instructions contain basic instructions and important information regarding safety, installa-
tion, commissioning, maintenance and the optimal use of the unit. Therefore these instructions must be read completely and
understood by the installation technician/specialist and by the system user before installation, commissioning and operation of
the unit.
The valid accident prevention regulations, VDE regulations, the regulations of the local power utility, the applicable DIN-EN
standards and the installation and operating instruction of the additional system components must also be observed. The con-
troller does not under any circumstances replace any safety devices to be provided by the customer!
Installation, electrical connection, commissioning and maintenance of the unit may only be carried out by specialists who pos-
sess the appropriate training.
For the user: Make sure that the specialist gives you detailed information on the function and operation of the controller. Always
keep these instructions in the vicinity of the controller.
A.2. - General instructions
Danger
Caution
A.3. - Explanation of symbols
Failure to observe these instructions can result in danger to life from electric voltage.
Danger
Failure to observe these instructions can result in serious damage to health such as scalding, or even
life-threatening injuries.
Caution
Failure to observe these instructions can result in destruction of the unit or the system, or damage to the
environment.
Information which is especially important for the function and optimal use of the unit and the system.
A.4. - Changes to the unit
• Changes, additions to or conversion of the unit are not permitted without the written permission from the manufacturer
• It is likewise forbidden to install additional components that have not been tested together with the unit
• If it becomes clear that safe operation of the unit is no longer possible, for example because of damage to the housing,
then turn the controller off immediately
• Any parts of the unit or accessories that are not in perfect condition must be exchanged immediately
• Use only original spare parts and accessories from the manufacturer.
• Markings made on the unit at the factory must not be altered, removed or made illegible
• Only the settings actually described in these instructions may be made on the controller
Changes to the unit can compromise the safety and function of the unit or the entire system.
Danger

4
Safety instructions
The controller has been manufactured and tested with regard to high quality and safety requirements. The unit is subject to the
statutory guarantee period of two years from the date of sale.
The warranty and liability shall not include, however, any injury to persons or material damage that is attributable to one or
more of the following causes:
- Failure to observe these installation and operating instructions
- Improper installation, commissioning, maintenance and operation
- Improperly executed repairs
- Unauthorised structural changes to the unit
- Installation of additional components that have not been tested together with the unit
- Any damage resulting from continued use of the unit despite an obvious defect
- Failure to use original spare parts and accessories
- Use of the device for other than its intended purpose
- Operation above or below the limit values listed in the specifications
- Force majeure
A.5. - Warranty and liability
The Temperature Difference Controller TSL240 facilitates efficient use and function control of your solar or heating system.
The device is impressive most of all for its functionality and simple, almost self-explanatory operation. For each step in the
input process the individual entry keys are assigned to appropriate functions and explained. The controller menu contains
headwords for the measured values and settings, as well as help texts or clearly-structured graphics.
The TSL240 can be used as a solar controller for the various system variants illustrated and explained under „D.3. - Hydraulic
variants / Schemes / Systems“ on page 10.
Important characteristics of the TSL240:
- Depiction of graphics and texts in a lighted display
- Simple viewing of the current measurement values
- Analysis and monitoring of the system by means of statistical graphics,etc.
- Individual configuration of special functions
- Extensive setting menus with explanations
- Menu block can be activated to prevent unintentional setting changes
- Resetting to previously selected values or factory settings
- A wide range of additional functions are available.
A.6. - About the controller
- Solar controller TSL240
- 3 screws 3,5x35mm and 3 plugs 6mm for wall installation
- 12 strain relief clips with 24 screws, replacement fuse 1x T2A / 250V
- Installation and instructions manual TSL240
Optionally contained depending on design/order:
- 2-8 PT1000 temperature sensors and immersion sleeves
- Ethernet
Additionally available:
- Pt1000 temperature sensor, immersion sleeves, overvoltage protection,
- CAN Bus Data Logger
A.7. - Scope of supply
A.8. - Disposal and pollutants
The unit conforms to the European RoHS directive 2002/95/EC for the restriction of the use of certain hazardous substances
in electrical and electronic equipment.
Caution
The unit must not under any circumstances be disposed of with ordinary household refuse. Dispose of the unit only
at appropriate collection points or ship it back to the seller or manufacturer.

5
Description of controller
Electrical specifications:
Mains voltage 100 - 240VAC
Mains frequency 50 - 60Hz
Power consumption 0,5 - 3 W
Switched power
Entire switched power for electronic relays R1 - R2: 460VA for AC1 / 240W for AC3
Electronic relay R1 min.5W...max.120W for AC3
Electronic relay R2 min.5W...max.120W for AC3
Entire switched power for mechanical relays R3 - R6: 460VA for AC1 / 460W for AC3
Mechanical relay R3 460VA for AC1 / 460W for AC3
Mechanical relay R4 460VA for AC1 / 460W for AC3
Mechanical relay R5 460VA for AC1 / 460W for AC3
Mechanical relay R6 460VA for AC1 / 460W for AC3
potentialfree relay R7 460VA for AC1 / 460W for AC3
0..10V Output for 10 k working resistance
PWM Output Freq. 1 kHz, level 10 V
Internal fuse 3x T2A / 250V slow blow
Protection category IP40
Protection class II
Overvoltage Category II
Degree of Pollution Category II
Sensor inputs 8 x Pt1000 temperature sensors
2xGrundfosDirectSensors
1xRC21
Measuring range
PT1000 -40°C to 300°C
Grundfos Direct Sensor: 0°C-100°C (-25°C /120°C short term)
1 l/min - 12 l/min (VFS1-12)
2 l/min - 40 l/min (VFS2-40)
5 l/min - 100 l/min (VFS5-100)
10 l/min - 200 l/min (VFS10-200)
Permissible cable length of sensors and appliances:
Collector and outdoor sensor <30m
other PT1000 sensors <10m
VFS/RPS Sensoren <3m
CAN <3m
PWM / 0...10V <3m
electronic relay <3m
mechanichal relay <10m
Network connections
Ethernet(optional)
CANBus
Real Time Clock RTC with 24 hour power reserve
Permissible ambient conditions:
Ambient temperature
for controller operation 0°C...40°C
for transport/storage 0°C...60°C
Air humidity
for controller operation max. 85% rel. humidity at 25°C
for transport/storage no moisture condensation permitted
Other specifications and dimensions
Housing design 3-part, ABS plastic
Installation methods Wall installation, optionally panel installation
Overall dimensions 228 x 180 x 53 mm
Display Fully graphical display, 128 x 128 dots
Light diode 2: 1x red, 1x green
Operation 4 entry keys
B.1. - Specifications
B.2. - Temperature resistance table for Pt1000 sensors
°C 0 102030405060708090100
1000 1039 1077 1116 1155 1194 1232 1270 1308 1347 1385

6
Install the controller only
in dry areas and under
the ambient conditions
described under B.1
“Specifications”.
Controller must be inac-
cessible from the rear.
Installation
Caution
Caution
C.1. - Wall installation
1. Unscrew cover screw completely.
2. Remove Terminal connection cover. Unscrew the 2 small screws left and right and
remove the upper part of the controller by lifting it out of the socket.
3. Mark the 3 mounting holes on the wall (see „C.1.1. Socket“). Make sure that the wall
surface is even so that the housing does not become distorted when it is screwed
on.
4. Using a drill and size 6 bit, drill 3 holes at the points marked on the wall and push
in the plugs.
5. Hang the controller on the upper screw.
6. Align the housing and tighten the lower screws.
C.1.1. Socket
161
11,8 195,4
9
R4.5
4.4
3333
139,3
n3.5
169.3

7
Installation
Terminal c onnection
cover
Cover screw
Controller and VFS sensor have to have the same ground potential. The VFS sensor has a functional earth con-
nector (PELV). The PE-connector of the controller has to be connected to the pipe system near the sensor.
Caution
C.2. - Electrical connection
Danger
Before working on the unit, switch off the power supply and secure it against being switched on again! Check
for the absence of power!
Electrical connections may only be made by a specialist and in compliance with the applicable regulations.
Do not use the controller if the housing shows visible damage.
Caution
Low-voltage cables such as temperature sensor cables must be routed separately from mains voltage cables.
Feed temperature sensor cables only into the left-hand side of the unit, and mains voltage cables only into the
right-hand side.
Caution
The customer must provide an all-pole disconnecting device, e.g. a heating emergency switch.
Caution
The cables being connected to the unit must not be stripped by more than 55mm, and the cable jacket must
reach into the housing just to the other side of the strain relief.
Relays R1 and R2 are only suitable for standard pumps (20-120VA). These pumps are speed controlled by the
controller. Due to the internal wiring, even when switched off residual energy is present in R1 and R2.
Do not use R1 and R2 for valves, contactors or other devices with low power consumption.
Achtung

8
1. Select necessary program/hydraulics (s. „D.3. - Hydraulic
variants / Schemes / Systems“ on page 10)
2. Remove terminal connection cover (s. „D.2. - Terminal
connection diagram“ on page 9)
3. Strip cables by 55mmmax., insert, fit the strain relief de-
vices, strip the last 8-9mm of the wires (Fig. „C.2.1.“)
4. Open the terminals using a suitable screwdriver (Fig.
„C.2.2.“) and make electrical connections on the controller
5. Refit terminal connection cover and fasten screw.
6. Switch on mains voltage and place controller in operation.
C.2.1.
C.2.2.
Installation
The temperature sensor cables must be routed separately from mains voltage cables, and must not, for
example, be routed in the same cable duct!
Caution
Caution
The controller operates with Pt1000 temperature sensors which are accurate to the degree, thus ensuring optimal control of
system functions.
Caution
If desired the sensor cables can be extended to a maximum of 30m using a cable with a cross-section of
at least 0.75mm². Make sure that there is no contact resistance!
Position the sensor precisely in the area to be measured!
Only use immersion, pipe-mounted or flat-mounted sensor suitable for the specific area of application
with the appropriate permissible temperature range.
Connect the VFS sensors with the matching jacks.
To prevent damage to the Direct Sensors it is highly recommended to install them in to the return.
When installing the Vortex Flow Sensors (VFS), observe the correct flow direction!
Instructions for clamps:
1. Insert screw driver into the upper hole. Push the lock
clamp inside down.
Keep the screw driver in this position.
2. Insert cable into the lower opening.
3. Remove screw driver. The clamp will lock the cable.
C.3. - Installing the temperature sensors

9
Installation
Caution
Low voltage max. 12VAC/DC
Terminal: Connection for:
S1 Sensor 1
S2 Sensor 2
S3 Sensor 3
S4 Sensor 4
S5 Sensor 5
S6 Sensor 6
S7 Sensor 7
S8 Sensor 8
V1 optional speed controlled
output for high efficency pumps
V2 optional speed controlled
output for high efficency pumps
VFS1 Grundfos Direct Sensor
VFS2 Grundfos Direct Sensor
Mains voltage 230VAC 50-60Hz
Terminal: Connection for:
R1 Relay 1
R2 Relay 2
R3 Relay 3
R4 Relay 4
R5 Relay 5
R6 Relay 6
N Mains neutral conductor N
L Mains phase conductor L
The PE protective conductor must be
connected to the PE metal terminal
block!
Potential free
Relay
NO
Normally open
C
Common
NC
Normally closed
SD Card Slot
for Data logging
and firmware up-
dates
Make sure that the
SD card‘s orienta-
tion is correct!
Card must be
inserted without
pressure. False
insertion can dam-
age the card slot!
Ethernet (option)
for LAN network
operations
max. 12V
Caution
mains side
230VAC
Danger
D.1. - Terminal connection
The mains part of the terminal connection room is covered by a plastic sheet. Make sure that the controller is without voltage before
removing it.
V2 V1 S8 S7
VFS2EWS 9-10-11 VFS1
SD Card
MainsRelaisPF-RelaisKleinspannungen
Ethernet
S6 S5 S4 S3 S2 S1 GND R6NC C NO R5R4R3R2R1 N L
D.2. - Terminal connection diagram
VFS1VFS2
bridge
bridge
low voltage PF relay relays mains

10
Installation
D.3. - Hydraulic variants / Schemes / Systems
System 1 System 2 System 3
y
System 4
S1 Storage top Storage top Storage Storage
S2 Storage low Storage low Storage Storage
S3
S4
S5 Heat ex-
changer
Heat ex-
changer
Heat ex-
changer
Heat exchanger
S6
S7
S8 Collector Collector Collector Collector
VFS1
VFS2
V1 Optionally
selectable for
R1
Optionally
selectable for
R1
Optionally
selectable for
R1
Optionally selec-
table for R1
V2 Optionally
selectable for
R2
Optionally
selectable for
R2
Optionally
selectable for
R2
Optionally selec-
table for R2
R1
(ELR)
Solar pump Solar pump Solar pump Solar pump
R2
(ELR)
secondary
pump
secondary
pump
secondary
pump
secondary
pump
R3 Solar pump Solar pump
R4
R5 -
R6 Valve
Storage Top
S1/ Storage
Low S2
(ON = Charge
Storage S2
Low)
Valve
Storage Top
S1/ Storage
Low S2
(ON = Char-
ge Storage
S2 Low)
Valve
Storage S1/
Storage S2
(ON = Charge
Storage 2)
Valve
Storage S1/
Storage S2
(ON = Charge
Storage 2)
R7
(pot.
free)
Temperature sensors
Temperature sensors
Only low voltage
Relay connections
Relay connections
230 VA

11
Operation
E.2 Commissioning help
the switch outputs with the consumers connected, and to check the sensor values for plausibility. Then switch on automatic
mode.
The first time the controller is turned on and after the language and time are set,
a query appears as to whether you want to parametrise the controller using the
commissioning help or not. The commissioning help can also be terminated or
called up again at any time in the special functions menu. The commissioning
help guides you through the necessary basic settings in the correct order, and
provides brief descriptions of each parameter in the display.
Pressing the “esc” key takes you back to the previous value so you can look at the
selected setting again or adjust it if desired. Pressing the “esc“ more than once
takes you back step by step to the selection mode, thus cancelling the commis-
sioning help. Finally, menu „3.2. - Manual“ on page 14 should be used to test
Caution
Observe the explanations for the the individual parameters on the following pages, and check whether further
settings are necessary for your application.
Examples of display symbols:
Pump (rotates in operation)
Valve (direction of flow in black)
Collector
Storage
Pool
Temperature sensor
Heat exchanger
Load pause (see Load time)
Warning / error message
New information available
Logging is active
More symbols can be found in
the chapter „Special functions“
(1)
(2)
(3)
(4)
The display (1), with its extensive text and graphics mode, is almost self-explanato-
ry, allowing easy operation of the controller.
To change from the overview to the settings menu, press the „esc“ key.
The green status LED (2) lights up when a relay is active, the red LED blinks when
an error occurs.
Inputs are made with 4 buttons (3+4), which functions change context sensitive.
The „esc“ key (3) is always used to cancel or exit a menu.
If applicable there will be a request for confirmation as to whether the changes
which have been made should be saved.
The function of each of the other three keys (4) is shown in the display line directly
above the keys; the right-hand key is generally has a confirmation and selection
function.
Examples of key functions:
+/- = enlarge/shrink values
/= scroll menu down/up
yes/no = approve/reject
Info = additional information
Back = to previous screen
ok = confirm selection
Confirm = confirm setting
E.1. - Display and input

12
E.3 Free commissioning
If you decide not to use the commissioning help, you should make the necessary settings in the following sequence:
- Menu 9. Language, page 36
- Menu 6.23 Time and Date, page 34
- Menu 6.1 Programmwahl, page 19
- Menu 4. Settings, all values, page 15
- Menu 5. Protective functions, if necessary, page 17
- Menu 6. Special functions, if necessary, page 19
Finally, menu „3.2. - Manual“ on page 14 should be used to test the switch outputs with the consumers connected, and to
check the sensor values for plausibility. Then switch on automatic mode.
Operation
Caution
Observe the explanations for the the individual parameters on the following pages, and check whether further
settings are necessary for your application.
E.4 Menu sequence and menu structure
The graphics or overview mode appears when no key has been press for 2 min-
utes, or when the main menu is exited by pressing “esc“.
The up and down buttons are used to scroll through the list of sensors and relays
.
You can enter the Main menu by pressing the „esc“ key. The following menus are
available:
Current temperature values with explanations
Function control of the system with operating hours, etc
Automatic mode, manual mode or switch unit off
Set parameters needed for normal operation
Solar and frost protection, recooling, anti-seizing protection
Program selection, sensor calibration, clock, additional sensor, etc.
Against unintentional setting changes at critical points
For diagnosis in the event of an error
Language selection
1. Measurements
2. Statistics
3. Operating mode
4. Settings
5. Protections
6. Special functions
7. Menu lock
8. Service Data
9. Language

13
Caution
The menu “1. Measurement values” serves to display the currently measured
temperatures.
The menu is closed by pressing “esc” or selecting “Exit measurement values”.
Selecting “Overview” or “esc” exits the Info mode.
If “Error” appears on the display instead of the measurement value, then there may be a defective or incorrect
temperature sensor. If the cables are too long or the sensors are not placed optimally, the result may be small
deviations in the measurement values. In this case the display values can be compensated for by making en-
tries on the controller. Follow the instructions under „6.19. - Sensor calibration“ on page 33.
What measurement values are displayed depends on the selected program, the connected sensors and the
specific device design.
Measurement values
1. - Measurement values
2. - Statistics
The menu “2. Statistics” is used for function control and long-term monitoring of
the system.
The menu is closed by pressing “esc” or selecting “Exit statistics”.
Statistics
Caution
For analysis of the system data it is essential for the time to be set accurately on the controller. Please note that
the clock does not continue to run if the mains voltage is interrupted, and must therefore be reset. Improper
operation or an incorrect time may result in data being deleted, recorded incorrectly or overwritten.
The manufacturer accepts no liability for the recorded data!
2.1. - Operating hours
Display of operating hours of the solar pump connected to the controller; various time ranges (day-year) are available.
2.2. - Heat output
Display of the heat output of the system.
2.3. - Graphic overview
This provides a clearly-organised display of the data listed under 2.1-2.2 as a bar graph. Various time ranges are available for
comparison. The two left-hand keys can be used to page through the data.
Resetting and deleting the individual analyses. The function “All statistics” clears all analyses but not the error messages.
2.5. - Reset/clear
2.4. - Message log
Display of the last 20 events occurring in the system with indication of date and time.

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3. - Operating modes
In menu “3. Operating modes” the controller can either be placed in automatic
mode, switched off, or placed in a manual operating mode.
The menu is closed by pressing “esc” or selecting “Exit operating modes”.
Automatic mode is the normal operating mode of the controller. Only automatic mode provides proper controller function tak-
ing into account the current temperatures and the parameters that have been set! After an interruption of the mains voltage
the controller automatically returns to the last operating mode selected!
3.1. - Automatic
Operating modes
3.2. - Manual
The relay and thus the connected consumer are switched on and off by pressing a key, with no regard to the current tem-
peratures and the parameters which have been set. The measured temperatures are also shown to provide an overview and
function control.
Danger
When operating mode “Manual” is activated, the current temperatures and the selected parameters are no
longer considered. There is a danger of scalding or serious damage to the system. The operating mode “Manu-
al” may only be used by specialists for brief function tests or during commissioning!
3.3. - Off
When the operating mode “Off” is activated, all controller functions are switched off. This can lead, for exam-
ple, to overheating on the solar collector or other system components. The measured temperatures are sstill
displayed to provide an overview.
Caution
3.4. - Fill system
This special operating mode is intended only for the filling procedure for a special “Drain Master System” with a
fill level contact parallel to collector sensor S1. The instructions on the display must be followed when filling the
system. Be sure to terminate the function when finished!
Caution

15
The following pages contain generally valid descriptions for the settings. Enumerations may vary .
Caution
4. - Settings
The necessary basic settings required for the control function are made in menu “5.
Settings”.
4.1. - Tmin S8
Enable/start temperature at sensor 8:
If this value is exceeded at the applicable sensor X and the other conditions are also met, then the controller switches on the
associated pump and/or valve. If the temperature at the sensor drops below this value by 5°C, then the pump and/or the valve
are switched off again.
Settings range : 0°C to 99 °C / Default setting: 20°C
Caution
This does not under any circumstances replace the safety facilities to be
provided by the customer!
The menu is closed by pressing “esc” or selecting “Exit settings”.
Settings
4.2. - Priority S (X)
Priority of Storages X
This determines the order, in which the storages are charged.
Settings range: 1-4
4.3. - Tmax S (X)
Switch-off temperature at sensor (X)
If this value is exceeded at the applicable sensor (X), the controller switches the associated pump and/or valve off. If the tem-
perature falls below this value again and the other conditions are also met, then the controller switches the pump and/or valve
on again.
Settings range: 0°C to 99 °C / Default setting: 60°C
Danger
Temperature values which are set too high can lead to scalding or damage to the system. Scalding protection
must be provided by the customer!
If the set temperature difference is too small, this may result in ineffective operation, depending on the system
and sensor positions.Special switching conditions apply for speed control (see „6.2. - Speed control“ on page
19)!
Caution
4.4. - ∆T Solar P (1-4)
Switch-on/switch-off temperature difference for sensor X :
If this temperature difference between the reference sensors is exceeded and the other conditions are also met, then the con-
troller switches the applicable relay on. When the temperature drops to T Off, then the relay is switched off.
Settings range: ΔT On from 6°C to 20°C / ΔT Off from 2°C to 19°C
Default setting: ΔT 10°C / ΔT-Off 5°C

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Settings
4.5. - T-priority
Temperature threshold for absolute priority
In systems with multiple storage tanks, charging of the lower-priority storage tank will never take place until this set tempera-
ture setpoint at the storage tank sensor of the higher-priority storage tank is exceeded.
Setting range: from 0°C to 90°C/default setting: 40°C
4.6. - Loading time
Interruption of charging into the lower priority storage tank
The charging of the lower-priority storage tank is interrupted after the settable time in order to check whether the collector has
reached a temperature level that allows charging in the higher-priority storage tank. If so, the priority storage tank is charged.
If not, the increase is measured (see „4.7. - Increase“), to check if charging of the priority storage tank will be possible shortly.
Setting range: from 1 to 90 minutes/default setting: 20 minutes
4.7. - Increase
Extension of the charging pause due to temperature increase in the collector
For precise setting of the charging priorities for systems with multiple storage tanks, the necessary temperature increase of
the collector at which the interruption of the charging into the lower-priority storage tank is extended by one minute is set here.
The interruption is extended because the temperature increase of the collector is expected to enable charging in the higher-
priority storage tank soon.
As soon as T conditions are met, the priority storage tank is charged. If the rise in temperature falls below the set value, then
the charging of the lower-priority storage tank is enabled again.
Setting range: from 1°C to 10°C/default setting: 3°C
4.8. - Pump delay
Waiting time before activation of additional pumps
This function prevents multiple primary pumps from being switched on simultanously. When a primary pump is activated, no
additional pump can be activated for this time span. After this waiting period has passed, and when the conditions are met,
another pump can be switched on.
Settings range: 10 to 200 seconds / Default: 10 seconds

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Menu „6. - Protective functions“ can be used to activate and set various protective functions.
The menu is closed by pressing “esc” or selecting “Exit”.
Protections
5. - Protections / Protective functions
Caution
This does not under any circumstances replace the safety facilities to be provided
by the customer!
5.1. - System protection
Highest Priority Protection
System protection prevents overheating of system components by automatic shutdown of the solar pump. If “SProt Ton” is
exceeded at the collector, the pump is switched off and stays off. The pump is activated again when the temperature drops
below “SProt TOff”.
System protection - Settings range: ON / OFF / Default setting: On
SP T on - Settings range: 60 °C to 150 °C / Default setting: 120 °C
SP T off - Settings range: 50 °C to T on minus 5 °C / Default setting: 115 °C
Caution
When system protection is on, the temperature in the idle collector will be very high, thus the pressure in the system
will rise and can damage your system.
Pay close attention to the instructions of the system manufacturer.
5.2. - Collector protection
Collector protection prevents overheating of the collector. The pump is switched on to transfer heat from the collector to the
storage tank.
If “CP Ton” is exceeded at the collector sensor, the pump is switched on until the temperature reaches “CP Toff” or the tem-
perature “CP Tmax storage” is exceeded in the storage.
Collectorprotection - Settings range: On / Off / Default setting: Off
CP T on - Settings range: 60°C to 150°C / Default setting: 110°C
CP T off - Settings range: 50°C to T on minus 5°C / Default setting: 100°C
CP Storage S(x) Max - Settings range: 0°C to 140°C / Default setting: 90°C
Danger
Danger
When collector protection is active, the storage is heated up to „CP Storage S(x) Max“ beyond Tmax S2
(see „4.2. - Tmax S1“ on page 15) which can result in scalding and system damage.
In hydraulic systems with solar when the recooling function is activated excess energy from the storage tank is fed back into the collec-
tor. This only takes place if the temperature in the storage tank is higher than the value “Recool Tsetpoint” and the collector is at least 20°C
cooler than the storage tank and before the storage tank temperature has dropped below the value “Recool Tsetpoint” (Hysteresis 10°C).
In systems with two storage tanks the setting applies to both storage tanks.
Recooling - Settings range: On, Off / Default setting: Off
Rückkühl Tsoll - Settings range: 0°C to 99°C / Default setting: 70°C
5.3. - Recooling
Caution
Energy is lost via the collector when Recooling is active! Recooling should only be activated as exception,
when little or no heat is used, e.g. when the residents are on vacations.
System protection has a higher priority than collector protection. Even when the switch on conditions for collector
protection are present, the solar pump will be switched off when SP T on is reached.

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Caution
This function causes energy to be lost via the collector! It is normally not activated for solar systems with antifreeze.
Observe the operating instructions for the other system components!
Protective functions
A two-stage frost protection function can be activated. In stage 1 the controller switches the pump on for 1 minute every hour if the collector
temperature drops below the set value “Frost stage 1”.
If the collector temperature drops further to the set value “Frost stage 2” the controller switches the pump on continuously.
If the collector temperature then exceeds the value “Frost stage 2” by 2°C, then the pump switches off again.
Frost protection setting range: on, off/default setting: off
Frost stage 1 setting range: from -25°C to 10°C or off/default setting: 7°C
Frost stage 2 setting range: from -25°C to 8°C (must be lower than stage 1) / default setting: 5°C
5.4. - Frost protection
If the seizing protection is activated, the controller switches the relay in question and the connected consumer on every day at 12:00 (set-
ting “daily”) or weekly on Sundays at 12:00 (setting “weekly”) for 5 seconds in order to prevent the pump and/or the valve from sticking
after an extended stationary period.
Setting range: daily, weekly, off/default setting: Off
5.5. - Seizing protection
5.6. - Collector alarm
If this temperature is exceeded at the collector sensor when the solar pump is on a warning or error message is triggered. A
warning message is shown in the display.
Collector alarm - Settings range: Off, On / Default setting: Off
Collector alarm - Settings range: 60 to 299 / Default setting: 115°C
Delay - Settings range: 1 to 60 Minuten / Default setting: 1

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Special functions
Menu “7. Special functions” is used to set basic items and expanded functions.
The menu is closed by pressing “esc” or selecting “Exit special functions”.
6. - Special functions
Caution
Other than the time all settings may only be made by a specialist.
The suitable hydraulic variant for the specific application is selected and set here (see „D.3. - Hydraulic variants / Schemes /
Systems“ on page 10). The associated diagram is displayed.
Settings range: 1-4 / Default setting: 1
6.1. - Program selection
Caution
Normally the program selection is made only once during initial commissioning by the specialist. Incorrect pro-
gram selection can lead to unpredictable errors.
With speed control the TSL240 makes it possible to vary the speed of connected pumps.
6.2. - Speed control
6.2.1. - Variant
6.2.2. - Type of pump
The following speed variants are available here:
Off: There is no speed control. The connected pump is only switched on or off with full speed.
Variant V1: After the purging time the controller switches to the set max. speed. If the temperature difference T between
the reference sensors (collector and storage tank) is less than the set value, then the speed is decreased by one stage after
the control time elapses. If the temperature difference between the reference sensors is greater than the set value, then the
speed is increased by one stage after the control time elapses. If the controller has adjusted the speed of the pump down to
the smallest stage and the T between the reference sensors is T off, the pump is switched off.
Variant V2: After the purging time the controller switches to the set min. speed. If the temperature difference T between the
reference sensors (collector and storage tank) is greater than the set value, then the speed is increased by one stage after the
control time elapses. If the temperature difference T between the reference sensors is below the set value, then the speed is
decreased by one stage after the control time elapses. If the controller has adjusted the speed of the pump down to the small-
est stage and the T between the reference sensors is Toff, the pump is switched off.
Variant V3: After the purging time the controller switches to the set min. speed. If the temperature at the reference sensor
(collector) is greater than the setpoint to be set subsequently, then the speed is increased by one stage after the control time
expires. If the temperature at the reference sensor (collector) is less than the setpoint to be set subsequently, then the speed
is decreased by one stage after the control time expires.
Setting range: V1,V2,V3, off/default setting: off
Variant V4:
When the primary storage is loaded, speed control works as in V3.
When the secondary storage is loaded, speed control works as in V2.
Settings range: V1,V2,V3, Off / Default: Off
The type of speed controlled pump must be entered here.
Standard: Speed control for standard pumps.
0-10V: Speed control of e.g. High efficency pumps by 0-10V signal.
PWM: Speed control of e.g. High efficency pumps by PWM signal.
This function should only be activated by a specialist. Depending on the pump and pump stage used, the
minimum speed should not be set too low, because otherwise the pump or the system may be damaged. The
information provided by the relevant manufacturer must also be observed! If in doubt, the min. speed and the
pump stage should generally be set to high rather than too low.
Caution
The enumeration of the menus may vary from system to system.
Caution

20
Speed control
Special functions
Caution
When selecting this submenu, you may be prompted to save the speed control settings.
This menu contains the settings for 0-10V or PWM pump.
6.2.3. - Pump menu
6.2.3.1. - Pump
In this menu, preconfigured profiles for various pumps can be selected. Please note that individual settings are still possible
even when a profile has been selected.
6.2.3.2. - Output Signal
This menu determines the type of pump used: Solar pumps perform at their highest power when the signal is also maxed,
heating pump on the other hand are set to highest power wenn the control signal is at the lowest. Solar = normal, heating =
Inverted.
Settings range: Normal, Inverted / Default setting: Normal
6.2.3.3. - PWM off
This signal is put out when the pump is switched off (Pumps that can detect cable break need a minimum signal).
Settings range: (Solar:) 0 to 50% / Default setting: 0% - (Heating:) 50% to 100% / Default setting: 100%
6.2.3.4. - PWM on
This signal is needed to turn the pump on at minimum speed.
Settings range: (Solar:) 0 to 50% / Default setting: 10% - (Heating:) 50% to 100% / Default setting: 90%
6.2.3.5. - PWM Max
This determines the the output signal for the highest speed of the pump, that is used e.g. during purging or manual operation.
Settings range: (Solar:) 50 to 100% / Default setting: 100% - (Heating:) 0% to 50% / Default setting: 0%
6.2.3.6. - 0-10V off
This voltage is put out when the pump is turned off (Pumps that can detect cable break need a minimum voltage).
Settings range: (Solar:) 0,0 to 5,0 V / Default setting: 1,0 V - (Heating:) 5,0 to 0,0 V / Default setting: 4 ,0 V
6.2.3.7. - 0-10V on
This voltage is needed to turn the pump on at minimum speed.
Settings range: (Solar:) 0,0 to 5,0 V / Default setting: 1,0 V - (Heating:) 5,0 to 10,0 V / Default setting: 9,0 V
6.2.3.8. - 0-10V Max
This determines the output voltage for the highest speed of the pump, that is used e.g. during purging or manual operation
Settings range: (Solar:) 5,0 to 10,0 V / Default setting: 10,0 V - (Heating:) 0,0 to 5,0 V / Default setting: 0,0 V
6.2.3.9. - Speed when „On“
This menu determines the calculated and displayed speed of the pump. If e.g. 30% is set here and the signal set in „PWM
on/0-10V on“ is put out, 30% speed is displayed. When the signal set in „PWM max/0-10V max“ is put out, 100% speed is
displayed. Everything in between is calculated accordingly.
Settings range: 10 to 90 % / Default setting: 30 %
6.2.3.10. - Show signal
Displays the set signal in text and a graphical diagram.
Caution
This function has no influence on the regulation, but changes only the speed displayed.