Read carefully before installation, commissioning and

Read carefully before installation, commissioning and
Temperature Difference Controller
STDC
Installation and operating instructions
applies to STDC versions V1, V2, V3, V4
Read carefully before installation, commissioning and operation
Content
A.1. - EC declaration of conformity
A.2. - General instructions
A.3. - Explanation of symbols
A.4. - Changes to the unit
A.5. - Warranty and liability
4
4
4
5
5
B.1. - Specifications
B.2. - Temperature resistance table
for Pt1000 sensors
B.3. - About the controller
B.4. - Versions
B.5. - Scope of supply
B.6. - Disposal and pollutants
B.7. - Hydraulic variants
6
6
7
7
8
8
9
C.1
C.2
C.3
Wall installation
Electrical connection
Installing the temperature sensors
10
11
13
D
Terminal connection diagrams
14
E.1
E.2
E.3
E.4
Display and Input
Parametrisation
Free commissioning
Menu sequence and menu structure
19
20
20
21
1. - Measurement values
22
2. - Statistics
2.1. - Operating hours
2.2. - Average temperature difference ∆T
2.3. - Heat output
2.4. - Graphic overview
2.5. - Message log
2.6. - Reset / clear
23
23
23
23
23
23
23
3. - Display mode
3.1. - Schematic
3.2. - Overview
3.3. - Alternating
3.4. - Eco Mode
24
24
24
24
24
4. - Operating modes
4.1. - Automatic
4.2. - Manual
4.3. - Off
25
25
25
25
5. - Settings
26
6. - Protective functions
6.1. - Seizing protection
6.2. - Frost protection
6.3. - System protection
6.4. - Collector protection
6.5. - Col.- Alarm
6.6. - Recooling
6.7. - Anti-Legionella
29
29
29
30
30
30
31
32
7. - Special functions
7.1. - Program selections
7.2. - Signal V1
7.2.1. - Type of signal
7.2.2. - Profile
7.2.3. - Output Signal
7.2.4. - PWM off
7.2.5. - PWM on
7.2.6. - PWM Max
7.2.4 - 0-10V off
7.2.5 - 0-10V on
7.2.6 - 0-10V Max
7.2.7. - Speed when „On“
7.2.8. - Show signal
7.3. - Speed control
7.3.1. - Speed control mode
7.3.2. - Purging time
7.3.3. - Sweep time
7.3.4. - max. speed
7.3.5. - min. speed
7.3.6. - Setpoint
7.4. - Time and Date
7.5. - Sensor calibration
7.6. - Commissioning
7.7. - Factory settings
7.8. - Heat quantity
7.8.1. - Heat metering
7.8.2. - AF type
7.8.3. - Glycol portion
7.8.4. - Flow rate
7.8.5. - ΔT Offset
7.9. - Starting aid
7.10. - Daylight saving time
33
33
33
34
34
34
35
35
35
35
35
35
36
36
38
38
39
39
39
39
39
40
40
40
40
41
41
41
41
41
41
42
42
8. - Menu lock
43
9. - Service values
44
10. - Language
44
Z.1 Malfunctions with error messages
Z.2 Replacing the fuse
Z.3. Maintenance
45
46
47
This manual applies to the following hardware versions:
STDC Version 1
3 temperature sensor inputs
1 relay output 230AC (on/off)
STDC Version 2
3 temperature sensor inputs
1 electronic relay output 230AC (for speed control of standard pumps)
STDC Version 3
3 temperature sensor inputs
1 relay output 230AC (on/off)
1 PWM/0-10V output (for speed control of high efficiency pumps)
STDC Version 4
3 temperature sensor inputs
1 electronic relay output 230AC (for speed control of standard pumps)
1 PWM/0-10V output (for speed control of high efficiency pumps)
When you are unsure which version you have, check the type label on the side
of the controller.
If the version is not readable here, open the controller’s “Service values” menu.
The version is shown in the first line of the service values.
3
Safety instructions
A.1. - EC declaration of conformity
By affixing the CE mark to the unit the manufacturer declares that the STDC 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 manufacturer.
A.2. - General instructions
It is essential that you read this!
These installation and operating instructions contain basic instructions and important
information regarding safety, installation, 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, the regulations of the local power utility, the
applicable standards and the installation and operating instructions of the additional
system components must also be observed. The controller 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 with the appropriate qualification.
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.3. - Explanation of symbols
Danger
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.
Caution
4
Information which is especially important for the function and
optimal use of the unit and the system.
Safety instructions
A.4. - Changes to the unit
Danger
Changes to the unit can compromise the safety and function of the
unit or the entire system.
- Changes, additions to or conversion of the unit are not permitted
without the written permission from the manufacturer
- It is likewise not permitted 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
A.5. - Warranty and liability
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
5
Description of controller
B.1. - Specifications
230AC +/- 10%
Mains voltage
Mains frequency
Power consumption
Internal fuse
Protection category
Protection class
Overvoltage Category
Degree of Pollution Category
50 - 60Hz
~ 1.5VA
2A slow blow 250V
IP40
II
II
II
Vers.1
Vers.2
Vers.3
Vers.4
mechanical relay 460VA for AC1 / 460W for AC3
1
-
1
-
electronic relay min.5W...max.120W for AC3
-
1
-
1
0-10V output, tolerance 10%, 10 k Ω load or
PWM output freq. 1 kHz, level 10 V
-
-
1
1
PT1000 sensor input measuring range -40°C to 300°C
3
3
3
3
90
100
Permissible cable length of sensors and appliances:
sensor S1 (e.g. collector sensor)
<30m
sensors S2 and S3 (e.g. storage sensor) <10m
PWM / 0...10V
<3m
electronic relay
<3m
mechanichal relay
<10m
Permissible ambient conditions:
Ambient temperature
- for controller operation
- for transport/storage
Air humidity
- for controller operation
- for transport/storage
Other specifications and dimensions
Housing design
Installation methods
Overall dimensions
Aperture installation
dimensions
Display
Operation
0°C...40°C
0°C...60°C
max. 85% rel. humidity at 25°C
no moisture condensation permitted
2-part, ABS plastic
Wall installation
115mm x 86mm x 45mm
108mm x 82mm x 25.2mm
Fully graphical display, 128 x 64 dots
4 entry keys
B.2. - Temperature resistance table for Pt1000 sensors
°C
Ω
6
0
10
20
30
40
50
60
70
80
1000 1039 1077 1116 1155 1194 1232 1270 1308 1347 1385
Description of controller
B.3. - About the controller
The Temperature Difference Controller STDC facilitates efficient use and function
control of your solar or heating system. The device is impressive most of all for its functionality and simple, 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 STDC can be used as a temperature difference controller for the various system
variants illustrated and explained under B.5.
Important characteristics of the STDC:
- 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.
- Extensive setting menus with explanations
- Menu block can be activated to prevent unintentional changes of settings
- Resetting to factory settings
B.4. - Versions
This manual applies to the following different hardware versions:
STDC Version 1
3 temperature sensor inputs
1 relay output 230AC (on/off)
STDC Version 2
3 temperature sensor inputs
1 electronic relay output 230AC (for speed control of standard pumps)
STDC Version 3
3 temperature sensor inputs
1 relay output 230AC (on/off)
1 PWM/0-10V output (for speed control of high efficiency pumps)
STDC Version 4
3 temperature sensor inputs
1 electronic relay output 230AC (for speed control of standard pumps)
1 PWM/0-10V output (for speed control of high efficiency pumps)
When you are unsure which
version you have, check the
type label on the side of the
controller.
If the version is not readable here, open the controller’s “Service values” menu.
The version is shown in the first line of the service values.
7
Description of controller
B.5. - Scope of supply
- Temperature Difference Controller STDC
- 2 Screws 3,5x35mm, 2 plugs S6 for wall installation
- 4 strain relief clips with 8 screws, replacement fuse 2A slow blow
- 1 connection clamp for PE terminal block.
- Installation and operating instructions STDC
Optionally contained depending on design/order:
- 2-3 Pt1000 temperature sensors and immersion sleeves
Additionally available:
- Pt1000 temperature sensors, immersion sleeves, overvoltage protection
B.6. - 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
8
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.
Description of controller
B.7. - Hydraulic variants
Caution
The following illustrations should be viewed only as schematic diagrams showing the respective hydraulic systems, and do not claim to
be complete. The controller does not replace safety devices under any
circumstances. Depending on the specific application, additional system
components and safety components may be mandatory, such as check
valves, non-return valves, safety temperature limiters, scalding protectors, etc., and must therefore be provided.
1
Solar with
storage tank
2
3
Solid fuel boiler with storage
4
Storage transfer
5
Raising of heat circuit
6
Thermostat
8
Stop valve
7
9
T Universal
Solar with Pool
Solar with heat
exchanger
and pool
9
Installation
C.1
Caution
C.1.1
Wall installation
Install the controller only in dry areas and under the ambient conditions described under 2.1 “Specifications”. Carry out the following steps:
1.Unscrew cover screw completely
2.Carefully pull upper part of housing from
lower part.
3.Set upper part of housing aside, being
sure not to touch the electronics when
doing so.
4. Hold the lower part of the housing
(C.1.2) up to the selected position and
mark the 2 mounting holes. Make sure
that the wall surface is as even as possible so that the housing does not become
distorted when it is screwed on.
C.1.2
5. Using a drill and size 6 bit, drill 2 holes
at the points marked on the wall and push
in the plugs. Also possible is the installation with 4 drill holes.
6. Insert the upper screw and screw it in
slightly.
7. Fit the upper part of the housing and
insert the other screws.
8. Align the housing and tighten the
screws.
10
Installation
C.2
Electrical connection
Danger
Caution
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.
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.
Caution
C.2.1
We recommend the use of flexible cables to ease the installation in the
clamp room.
1.Select necessary program/hydraulics
(see section D)
2. Strip cables by 55mm max., insert, fit
the strain relief devices, strip the last
9-10 mm of the wires. (Fig. C.2.1)
C.2.1.a
3.Open controller as described under fig.
C.1.1, insert cables and install strain
reliefs
4.Install PE terminal block (see fig. 2.1.a).
continued on
next page
11
Installation
C.2.1.c
screw driver
5. Connect the female connector block ‘s
clamp connections as described in the
terminal connection plans. When using
stranded cables, use a small screw driver and push the orange buttons while
inserting (see fig. C.2.1.c). When using
solid cable or end splice, just push the
cables in (see fig. C.2.1.d).
6. Plug Female connectors into onboard
headers.
7. Hinge the upper part of the casing on
the top of the lower part and close the
casing gently.
C.2.1.d
8. Fasten with screw.
9. Switch on mains voltage and place
controller in operation.
C.2.1.e
12
Installation
To remove the female connector block
from the header, carefully bend the latch
on the header.
Caution: The latch breaks easily.
C.2.1.f
C.3
Installing the temperature sensors
The controller operates with Pt1000 temperature sensors which are accurate to the
degree, thus ensuring optimal control of system functions.
Caution
Caution
Caution
Position the sensor precisely in the area to be measured!
Only use immersion, pipe-mounted or flat-mounted sensors suitable
for the specific area of application with the appropriate permissible
temperature range.
The temperature sensor cables must be routed separately from
mains voltage cables, and must not, for example, be routed in the
same cable duct!
The line of S1 can be extended if needed to a maximum of 30m using a
cable with a cross-section of at least 0.75mm². The lines of S2 and S3
can be extended if needed to a maximum of 10m using a cable with a
cross-section of at least 0.75mm².
Make sure that there is no contact resistance!
13
Installation
D
Terminal connection diagrams
D.1
Solar with storage tank
Mains side
Danger230AC
Caution
Sensor side
max. 12V
Low voltage max. 12VAC/DC connection
Terminal:
Connection for:
S1 (2x)
Sensor 1 collector
S2 (2x)
Sensor 2 Storage
S3 (2x)
Sensor 3 (optional)
The polarity of the sensors S1-S3 is freely selectable.
V1 / 0-10V or PWM +/- (STDC Version 3+4)
Mains voltages 230VAC 50-60Hz
Terminal:
Connection for:
L
Mains phase conductor L
N
Mains neutral conductor N
R
Pump phase conductor L
N
Pump neutral conductor N
R
Break contact (STDC Version 1+3)
The PE protective conductor must be connected to
the PE metal terminal block!
D.2
Solar with swimming pool
Mains side
Danger230AC
Caution
Sensor side
max. 12V
Low voltage max. 12VAC/DC connection
Terminal:
Connection for:
S1 (2x)
Sensor 1 collector
S2 (2x)
Sensor 2 pool
S3 (2x)
Sensor 3 (optional)
The polarity of the sensors S1-S3 is freely selectable.
V1 / 0-10V or PWM +/- (STDC Version 3+4)
Mains voltages 230VAC 50-60Hz
Terminal:
Connection for:
L
Mains phase conductor L
N
Mains neutral conductor N
R
Pump phase conductor L
N
Pump neutral conductor N
R
Break contact (STDC Version 1+3)
The PE protective conductor must be connected to
the PE metal terminal block!
14
Installation
D.3
Solid fuel with storage tank
Mains side
Danger230AC
Caution
Sensor side
max. 12V
Low voltage max. 12VAC/DC connection
Terminal:
Connection for:
S1 (2x)
Sensor 1 Solid fuel boiler
S2 (2x)
Sensor 2 Storage
S3 (2x)
Sensor 3 (optional)
The polarity of the sensors S1-S3 is freely selectable.
V1 / 0-10V or PWM +/- (STDC Version 3+4)
Mains voltages 230VAC 50-60Hz
Terminal:
Connection for:
L
Mains phase conductor L
N
Mains neutral conductor N
R
Pump phase conductor L
N
Pump neutral conductor N
R
Break contact (STDC Version 1+3)
The PE protective conductor must be connected to
the PE metal terminal block!
D.4
Storage transfer
Mains side
Danger230AC
Caution
Sensor side
max. 12V
Low voltage max. 12VAC/DC connection
Terminal:
Connection for:
S1 (2x)
Sensor 1 storage
S2 (2x)
Sensor 2 storage
S3 (2x)
Sensor 3 (optional)
The polarity of the sensors S1-S3 is freely selectable.
V1 / 0-10V or PWM +/- (STDC Version 3+4)
Mains voltages 230VAC 50-60Hz
Terminal:
Connection for:
L
Mains phase conductor L
N
Mains neutral conductor N
R
Pump phase conductor L
N
Pump neutral conductor N
R
Break contact (STDC Version 1+3)
The PE protective conductor must be connected to
the PE metal terminal block!
The heat is transferred from
storage 1 to storage 2
15
Installation
D.5
Raising of heat circuit
Mains side
Danger230AC
Caution
Sensor side
max. 12V
Low voltage max. 12VAC/DC connection
Terminal:
Connection for:
S1 (2x)
Sensor 1 storage
S2 (2x)
Sensor 2 backward flow
S3 (2x)
Sensor 3 (optional)
The polarity of the sensors S1-S3 is freely selectable.
V1 / 0-10V or PWM +/- (STDC Version 3+4)
Mains voltages 230VAC 50-60Hz
Terminal:
Connection for:
L
Mains phase conductor L
N
Mains neutral conductor N
R
Valve phase conductor L
N
Valve neutral conductor N
Break contact (STDC Version 1+3)
R
The PE protective conductor must be connected to
the PE metal terminal block!
Caution
D.6
Actuating direction of valve:
R1 on/valve on = direction
through the storage tank
Thermostat
Mains side
Danger230AC
Caution
Sensor side
max. 12V
Low voltage max. 12VAC/DC connection
Terminal:
Connection for:
S1 (2x)
Sensor 1 storage
S2 (2x)
Sensor 2 (optional)
S3 (2x)
Sensor 3 (optional)
The polarity of the sensors S1-S3 is freely selectable.
V1 / 0-10V or PWM +/- (STDC Version 3+4)
Mains voltages 230VAC 50-60Hz
Terminal:
Connection for:
L
Mains phase conductor L
N
Mains neutral conductor N
R
Pump phase conductor L
N
Pump neutral conductor N
R
Break contact (STDC Version 1+3)
The PE protective conductor must be connected to
the PE metal terminal block!
When S2 is installed = S1
is switch-on sensor and S2
switch-off sensor.
16
Installation
D.7
Universal ΔT controller
Mains side
Danger230AC
Caution
Sensor side
max. 12V
Low voltage max. 12VAC/DC connection
Terminal:
Connection for:
S1 (2x)
Sensor 1 control
S2 (2x)
Sensor 2 reference
S3 (2x)
Sensor 3 (optional)
The polarity of the sensors S1-S3 is freely selectable.
V1 / 0-10V or PWM +/- (STDC Version 3+4)
Mains voltages 230VAC 50-60Hz
Terminal:
Connection for:
L
Mains phase conductor L
N
Mains neutral conductor N
R
Pump phase conductor L
N
Pump neutral conductor N
Break contact (STDC Version 1+3)
R
The PE protective conductor must be connected to
the PE metal terminal block!
Brief description of switching
function: The ΔT function sensor 1 > sensor 2 switches the
pump at relay R.
D.8
Stop valve
Mains side
Danger230AC
Caution
Sensor side
max. 12V
Low voltage max. 12VAC/DC connection
Terminal:
Connection for:
S1 (2x)
Sensor 1 flow
S2 (2x)
Sensor 2 storage
S3 (2x)
Sensor 3 (optional)
The polarity of the sensors S1-S3 is freely selectable.
V1 / 0-10V or PWM +/- (STDC Version 3+4)
Mains voltages 230VAC 50-60Hz
Terminal:
Connection for:
L
Mains phase conductor L
N
Mains neutral conductor N
R
stop valve phase conductor L
N
stop valve neutral conductor N
R
Break contact (STDC Version 1+3)
The PE protective conductor must be connected to
the PE metal terminal block!
Brief description of switching function: The ΔT function
sensor 1 > sensor 2 switches
relay R.
17
Installation
D.9
Solar with heat exchanger and pool
Mains side
Danger230AC
Caution
Sensor side
max. 12V
Low voltage max. 12VAC/DC connection
Terminal:
Connection for:
S1 (2x)
Sensor 1 collector
S2 (2x)
Sensor 2 pool
S3 (2x)
Sensor 3 secondary circuit
The polarity of the sensors S1-S3 is freely selectable.
V1 / 0-10V or PWM +/- (STDC Version 3+4)
Mains voltages 230VAC 50-60Hz
Terminal:
Connection for:
L
Mains phase conductor L
N
Mains neutral conductor N
R
Pump phase conductor L
N
Pump neutral conductor N
Break contact (STDC Version 1+3)
R
The PE protective conductor must be connected to
the PE metal terminal block!
18
Operation
E.1
Display and Input
The display (1), with its extensive text and
graphics mode, is almost self-explanatory,
allowing easy operation of the controller.
Entries are made using four keys (2+3),
which are assigned to different functions
depending on the situation. The “esc” key
(3) is used to cancel an entry or to exit a
menu.
If applicable there will be a request for
confirmation as to whether the changes
which have been made should be saved.
Display symbols:
Pump
(rotates in operation)
Valve
(direction of flow black)
Collector
Storage tank
Solid fuel boiler
The function of each of the other three
keys (3) is shown in the display line directly above the keys; the right-hand key
generally has a confirmation and selection
function.
Examples of key functions:
+/= increase/reduce values
▼/▲
= scroll menu down/up
yes/no = approve/reject
Info
= additional information
Back = to previous screen
ok
= confirm selection
Confirm = confirm setting
Swimming pool
Temperature sensor
Thermostat On / Off
Warning / error message
New information available
19
Operation
E.2
Parametrisation
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 commissioning help. Finally, under operating mode
menu 4.2 “Manual” 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.
Caution
E.3
Observe the explanations for the the individual parameters on the
following pages, and check whether further settings are necessary
for your application.
Free commissioning
If you decide not to use the commissioning help, you should make the
necessary settings in the following sequence:
- Menu 10.
Language
- Menu 7.3
Time and date
- Menu 7.1
Program selection
- Menu 5.
Settings, all values
- Menu 6.
Protective functions if adaptations are necessary
- Menu 7.
Special functions if additional changes are necessary
Finally, menu 4.2 under operating mode “Manual“ 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.
Caution
20
Observe the explanations for the the individual parameters on the
following pages, and check whether further settings are necessary
for your application.
Operation
E.4
Menu sequence and menu structure
The graphics or overview mode appears
when no key has been pressed for 2 minutes, or when the main menu is exited by
pressing “esc“.
Pressing a key in graphics or overview
mode takes you directly to the main menu.
The following menu items are then available for selection there:
1. Measurements
Current temperature values with
explanations
2. Statistics
Function control of the system with
operating hours, etc.
3. Display mode
Select graphics mode or overview
mode
4. Messwerte
Automatic mode, manual mode or
switch unit off
5. Settings
Set parameters needed for normal
operation
6. Protections
Solar and frost protection, recooling,
anti-seizing protection
7. Special functions
Program selection, sensor calibration,
clock, additional sensor, etc.
8. Menu lock
Against unintentional setting changes
at critical points
9. Service values
For diagnosis in the event of an
error
10. Language
Select the menu language
21
Measurement values
1. - Measurement values
The menu “1. Measurement values”
serves to display the currently measured
temperatures.
The menu is closed by pressing “esc” or
selecting “Exit measurements ”.
Selecting “Details” leads to a brief help
text explaining the 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.
Caution
22
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 entries on the
controller. Follow the instructions under 7.3.
What measurement values are displayed depends on the selected program, the connected sensors and the specific device design.
Statistics
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”.
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 continues for about 24 hours if the
mains voltage is interrupted, and must be reset afterwards. 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. - Average temperature difference ∆T
Display of the average temperature difference between the reference sensors of the solar
system with the consumer switched on.
2.3. - Heat output
Display of the heat output of the system. This menu can only be selected, however, when the
function „7.8. - Heat quantity“ is activated.
2.4. - Graphic overview
This provides a clearly-organised display of the data listed under 2.1 - 2.3 as a bar graph.
Various time ranges are available for comparison. The two left-hand keys can be used to
page through the data.
2.5. - Message log
Display of the last 20 errors occurring in the system with indication of date and time.
2.6. - Reset / clear
Resetting and deleting the individual analyses. The function “All statistics” clears all analyses
but not the error messages.
23
Display mode
3. - Display mode
Menu “3. Display mode” is used to define
the controller’s display for normal operation. This display appears whenever two
minutes go by without any key being
pressed. The main menu appears again
when a key is pressed. The menu is
closed by pressing “esc” or selecting “Exit
display mode”.
3.1. - Schematic
In graphics mode, the selected hydraulic systems are depicted graphically with the
measured temperatures and operating states of the connected consumers.
3.2. - Overview
In overview mode, the measured temperatures and operating states of the connected consumers are depicted in text form.
3.3. - Alternating
In alternating mode the schematic mode and then the overview mode are active for 5
seconds at a time.
3.4. - Eco Mode
Eco mode switches the backlight of the display off after 2 minutes of inactivity.
Default: Off
Caution
24
If a message (e.g. error) is shown, the backlight stays on until the message
was read.
Operating modes
4. - Operating modes
In menu “4. 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”.
4.1. - Automatic
Automatic mode is the normal operating mode of the controller. Only automatic mode
provides proper controller function taking 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!
4.2. - Manual
The relay and thus the connected consumer are switched on and off by pressing a
key, with no regard to the current temperatures 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
“Manual” may only be used by specialists for brief function tests or during commissioning!
4.3. - Off
Caution
When the operating mode “Off” is activated, all controller functions are
switched off. This can lead, for example, to overheating on the solar
collector or other system components. The measured temperatures
continue to be shown shown to provide an overview.
25
Settings
5. - Settings
The necessary basic settings required for
the control function are made in menu “5.
Settings”.
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”.
Various settings can be made depending on the selection of hydraulic variant.
The following pages contain generally valid descriptions for the settings.
Caution
5.1 - Tmin S1
Enable/start temperature at sensor 1
If this value is exceeded at sensor 1 and the other conditions are also met, then the
controller switches the pump and/or valve on. If the temperature at sensor 1 drops
below this value by 5K, then the pump and/or valve is switched off again.
Setting range: from 0°C to 99°C / default setting: 20°C (solid fuel boiler: 60°C)
Caution
When using application 3 with solid fuel boiler, at least 60°C should
be set. Consider instructions of boiler manufacturer!
5.4 - Tmax S2
Switch-off temperature at sensor 2
If this value is exceeded at sensor 2 and the other conditions are also met, then the
controller switches the pump and/or valve off. If sensor 2 falls below this value again
and the other conditions are also met, then the controller switches the pump and/or
valve on again.
Setting range: from Off (Solid fuel boiler), 0°C to 99°C (can be switched off in thermostat systems)
Default setting: 60°C (swimming pool: Default: 30°C)
Danger
26
Temperature values which are set too high can lead to scalding or damage to the system. Scalding protection must be provided by the customer!
Settings
5.8 - ∆T R1
Switching condition: Temperature difference for relay R1:
If the temperature difference ∆T between the reference sensors is exceeded and the
other conditions are also met, then the controller switches the pump/valve on. If the
temperature difference between the reference sensors drops to ∆Toff, then the pump/
valve is switched off again.
Settings range: ΔT: 3°C to 50°C / ΔToff: 2°C to ΔT minus 1
Default: ΔT 10°C / ΔToff 3°C.
Caution
If the set temperature difference is too small, this may result in
ineffective operation or frequent clocking (switch-on and switch-off) of
the pump.
5.11 - Tref (Thermostat)
Reference temperature at sensor 1
Heating = 1st value smaller than the 2nd value
If the temperature drops below Tref On (1. value) at sensor 1 and the thermostat
function is enabled, (see 5.5), the relay for additional heating is switched on until the
temperature reaches Tref Off (2. value).
Cooling = 1st value higher than the 2nd value
If the temperature exceeds Tref On (1. value) at sensor 1 and the thermostat function
is enabled (see 5.5), the relay for cooling is switched on until the temperature drops
below Tref Off (2. value).
Settings range:
Tref On: -10°C - 90°C / Default: 50°C
Tref Off: -20°C - 99°C / Default: 60°C
Caution
When sensor S2 is installed, S1 is used as lead for switch on and S2 as
switch off.
5.20 - Tmax S1
Switch-off temperature at sensor 1
If this value is exceeded at sensor 1 and the other conditions are also met, then the
controller switches the pump and/or valve off. If sensor 1 falls below this value again
and the other conditions are also met, then the controller switches the pump and/or
valve on again.
Setting range: from 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!
27
Settings
5.21 - Thermostat times
Set the desired periods of time when the thermostat should be active. 2 periods can
be set per day, settings can also be copied to other days. Outside the set times the
thermostat is switched off.
Setting range: from 00:00 to 23:59 /default setting: 06:00 to 22:00
5.22 - Tmax S3
Switch-off temperature at sensor 3
If this value is exceeded at sensor 3 and the other conditions are also met, then the
controller switches the relay off. If sensor 3 falls below this value again and the other
conditions are also met, then the controller switches the relay on again.
Setting range: from 0°C to 99°C
Default setting: 60°C (in systems not using S3: Default Off)
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!
Party Funktion (Thermostat only)
With the party function the storage temperature is heated up once to the
reference temperature (Tref off), disregarding the set thermostat times.
The party mode is enabled by pressing
the „esc“-key for 3 seconds in the main
menu. While this mode is active, the system heats up to the reference “Tref Off”,
regardless of preset thermostat times.
The mode is ended once the required
temperature is reached.
28
Protective functions
6. - Protective functions
Menu “6. Protective functions” can be used
to activate and set various protective functions.
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”.
6.1. - Seizing protection
If the Seizing protection is activated, then the controller switches the associated pump
and/or valve on every day at 12:00 or on Sundays at 12:00 for 5 seconds in order to
prevent the pump and/or valve from sticking after an extended stationary period.
Setting range: daily, weekly, off / default value: Off
6.2. - Frost protection (solar only)
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, 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 / default setting: 5°C
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!
29
Protective functions
6.3. - System protection (solar only) priority protection
System protection prevents overheating of system components by automatic shutdown
of the solar pump. If “AS Ton” is exceeded at the collector, the pump is switched off.
The pump is activated again when the temperature drops below “AS TOff”.
Automatic shutdown - settings range: On / Off / Default: on
AS Ton - settings range: 60 °C to 150 °C / Default: 120 °C
AS Toff - settings range: 50 °C to Ton minus 5 °C / Default: 110 °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.
6.4. - Collector protection (solar only)
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 temperature “CP Tmax storage” is exceeded in the
storage or pool.
Collector protection settings range: on / off / Default: off
CP Ton settings range: 60°C to 150°C / Default: 110°C
CP Toff settings range: 50°C to Ton minus 10°C / Default: 100°C
CP Tmax storage settings range: 0°C to 140°C / Default: 90°C
Danger
When collector protection is active, the storage or pool is heated well
beyond Tmax S2 (see 5.2) which can result in scalding and system damage.
6.5. - Col.- Alarm (solar only)
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: on / off / Default: off
Col. alarm - setting range: 60 °C to 300 °C / Default: 150 °C
30
Protective functions
6.6. - Recooling (solar only)
In hydraulic systems with solar when the recooling function is activated excess energy
from the storage tank is fed back into the collector. 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 until the storage tank temperature
has dropped below the value “Recool Tsetpoint”.
Recooling settings range: on / off / Default: off
Recooling Tset settings range: 0°C to 99°C / Default: 70°C
Caution
This function causes energy to be lost via the collector! The
recooling should only be activated in exceptional cases.
31
Protective functions
6.7. - Anti-Legionella
With the “AL function” activated the STDC makes it possible to heat the storage tank
up to a higher temperature (“AL Tsetpoint S2”, provided that the energy source allows
this. Time periods where the AL heat up is attempted are to be setup in the menu “AL
times” Once the temperature “AL Tset S2” is reached, the controller will try to maintain
this temperature for the time period set in “AL residence time”. When this happened,
the time and date is saved and displayed in the menulog “AL heat”.
AL Function settings range: on / off / Default: off
AL Tset S2 (Thermostat uses both S1 and S2) settings range: 60°C to 99°C /
Default: 70°C
AL residence time - settings range: 1 to 60 minutes / Default: 15 minutes
AL heat. (no setting): Displays the date and time of the last successful AL heat up
AL times - settings range: Mo-Su , 0-24h/ Default: daily 3-5h
Caution
Danger
Caution
32
The anti-Legionella function is switched off at delivery.
For solar: This function is only relevant for storage tanks where sensor
2 is installed. Whenever heating-up has been carried out with the antiLegionella function being switched on, an information message with the
date is shown in the display.
For thermostat: S1 is used as switch-off sensor. When both S1 and S2
are connected, they both have to reach AL Tset S1 to successfully finish
the AL heat up.
During the anti-Legionella function the storage tank is heated up
over the set value “Tmax S2”, which can lead to scalding and
damage to the system.
This anti-Legionella function does not provide complete protection
against Legionella, because the controller is dependent on sufficient
energy being fed in, and it is not possible to monitor the temperatures in
the entire range of the storage tanks and the connected piping system.
To provide complete protection against Legionella bacteria, it must be
ensured that the temperature is raised to the necessary temperature,
and at the same time there must be water circulation in the storage tank
and piping system by means of other additional energy sources and
control units.
Special functions
7. - Special functions
Menu “7. Special functions” is used to set
basic items and expanded functions.
Caution
Other than the time all settings
may only be made by a specialist.
The menu is closed by pressing “esc” or
selecting “Exit special functions”.
Menu enumerations may vary according to STDC version used.
Caution
7.1. - Program selections
The suitable hydraulic variant for the specific application is selected and set here (see
section D: Hydraulic variants). The associated diagram can be displayed by pressing
“info”.
Setting range: 1-9 / default value: 1
Caution
Normally the program selection is made only once during initial
commissioning by the specialist. Incorrect program selection can lead to
unpredictable errors.
7.2. - Signal V1 (only STDC Version 3 + 4)
This menu contains the settings for 0-10V or PWM pump.
Caution
When selecting this submenu, you may be prompted to save the speed
control settings.
33
Special functions
7.2.1. - Type of signal
The type of speed controlled pump is entered here.
Depending on the STDC Version used various selections are possible:
(only STDC version 2 + 4)
Standard: Speed control for standard pumps 230AC on output R1.
Use only for standard pumps! PWM / 0-10V output switched off.
(only STDC version 3 + 4)
0-10V: Speed control for special pumps via output V1 (e.g. High efficiency pumps) by
means of a 0-10V. Relay output R1 (230AC) is switched on for power supply when
output V1 is switched on.
PWM: Speed control for special pumps via output V1 (e.g. High efficiency pumps) by
means of a PWM signal. Relay output R1 (230AC) is switched on for power supply
when output V1 is switched on.
7.2.2. - Profile
In this menu, preconfigured profiles for various pumps can be selected. Alternatively,
all settings can be done manually. Please note that individual settings are still possible
even when a profile has been selected.
7.2.3. - 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 when the control signal is at the lowest. Solar = normal, heating = Inverted.
Settings range: Normal, Inverted / Default setting: Normal
34
Special functions
When Output signal PWM is selected:
7.2.4. - 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%
7.2.5. - 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%
7.2.6. - PWM Max
This determines 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%
When Output signal 0-10V is selected:
7.2.4 - 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
7.2.5 - 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
7.2.6 - 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
35
Special functions
7.2.7. - 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 %
Caution
This function has no influence on the regulation, but changes only the
speed displayed.
7.2.8. - Show signal
Displays the set signal in text and a graphical diagram.
7.2.8.a Example for pump settings
Speed
Max rpm
0-5% Cable break detection
5-20% Stop
Min rpm
Stop
25% Start
Start
25-90% Area of control
0 5%
20% 25%
50%
PWM on >=25%
PWM off 5% - 20%
36
90% 100%
PWM max <= 90%
PWM-Signal (%)
Special functions
7.2.8.b Technical data PWM and 0-10V
Technical data PWM:
PWM: 20% to 100%, 1kHz
Designed for a load of
10K Ohm
Technical data 0-10V:
0-10V: 2V to 10V (20% to 100%)
Designed for a load of 10K Ohm.
10V = 100% Speed
5V = 50% Speed
2V = 20% Speed
0V = Off
37
Special functions
7.3. - Speed control
(only STDC version 2, 3 and 4)
If the speed control is activated, the STDC makes it possible to vary the speed of standard
pumps at relay by means of special internal electronics.
Caution
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 too high rather than too low.
7.3.1. - Speed control mode
(only STDC version 2, 3 and 4)
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.
Mode 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 smaller than the set value ∆T R1, then the speed is decreased.
If the temperature difference between the reference sensors is greater than the set
value (Switch-on temperature difference ∆T R1), then the speed is increased. 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.
Mode 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. If the temperature difference
∆T between the reference sensors is below the set value, then the speed is decreased.
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.
Mode V3: After the purging time the controller switches to the set min. speed. If the
temperature at the reference sensor (collector, in systems with heat exchanger on
relay 2 the heat exchanger instead) is greater than the setpoint to be set subsequently,
then the speed is increased. If the temperature at the reference sensor (collector) is
less than the setpoint to be set subsequently, then the speed is decreased.
Setting range: V1,V2,V3, off/default setting: off
38
Special functions
7.3.2. - Purging time
During this time period, the pump is running with full speed (100%) to ensure troublefree startup. After this time has passed, the pump is set to speed control and is set to
max. speed or min speed, depending on the speed control variant. Purging time can
not be applied with PWM or 0-10V output.
Settings range: 5 to 600 seconds / Default setting: 8 seconds
7.3.3. - Sweep time
Sweep time determines the inertia of the speed control to prevent strong fluctuations
in temperature. Sweep time is the time span for a complete change from minimum to
maximum pump speed.
Settings range: 1 to 15 minutes / Default setting: 4 minutes
7.3.4. - max. speed
The maximum speed of the pump is specified here. During the setting the pump runs
at the specified speed and the flow rate can be determined.
Settings range: 70% to 100% / Default setting: 100%
Caution
The indicated percentages are guide values that may vary to a greater
or lesser extent depending on the system, pump and pump stage. 100%
is the maximum voltage/frequency of the controller.
7.3.5. - min. speed
The minimum speed of the pump at relay R1 is specified here. During the setting the
pump runs at the specified speed and the flow rate can be determined.
Settings range:30% to max. speed -5% / Default setting: 50%
Caution
The indicated percentages are guide values that may vary to a greater
or lesser extent depending on the system, pump and pump stage. 100%
is the maximum voltage/frequency of the controller.
7.3.6. - Setpoint
This value is the control setpoint for mode 3 „7.2.1. - Speed control mode“ on page
38 . If the value at the sensor drops below this, the speed is reduced. If it rises
above this, the speed is increased.
Settings range: 0° to 90°C / Default setting: 60°C
39
Special functions
7.4. - Time and Date
This menu is used to set the current time and date.
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 has a 24 hour battery
and must be reset if the power was cut for a longer period.
7.5. - Sensor calibration
Deviations in the temperature values displayed, for example due to cables which
are too long or sensors which are not positioned optimally, can be compensated for
manually here. The settings can be made for each individual sensor in steps of 0.5°C.
Offset S1...S3 per setting range: -10°C...+10°C / Default: 0°C
Caution
Settings are only necessary in special cases at the time of initial
commissioning by the specialist. Incorrect measurement values
can lead to unpredictable errors.
7.6. - Commissioning
Starting the commissioning help guides you in the correct order through the basic settings necessary for commissioning, 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 to the selection mode, thus cancelling the commissioning help.
Caution
May only be started by a specialist during commissioning! Observe
the explanations for the the individual parameters in these instructions,
and check whether further settings are necessary for your application.
7.7. - Factory settings
All of the settings that have been made can be reset, thus returning the controller to its
delivery state.
Caution
40
The entire parametrisation, analyses, etc. of the controller will be lost
irrevocably. The controller must then be commissioned once again.
Special functions
7.8. - Heat quantity
A simple heat metering function for basic system control can be activated in this menu.
Additional settings regarding the glycol, the percentage of type of gylcol and the flow
rate of the system are required. A correction value for the heat metering is also possible by adjusting the “Offset ΔT”
Caution
Keep in mind that the system is not changed, adjustments made in this
menu are only used to calculate the heat volume and should be based
on the actual system. Resulting data is only approximate value for function control!
7.8.1. - Heat metering
Activate or deactivate the heat metering function
Settings range: On/off /default setting: Off
7.8.2. - AF type
Adjust the type of glycol that is being used in the system.
Settings range: Ethylene/Propylene /default setting: Ethylene
7.8.3. - Glycol portion
Adjust the percentage of glycol that is being used in the system.
Settings range: 0-60% /default setting: 45%
7.8.4. - Flow rate
Adjust the flow rate according to the system.
Settings range: 0-100 l/min /default setting: 5 l/min
7.8.5. - ΔT Offset
Since the calculation of the heat metering is based on the temperature of
the collector and storage where measuring takes place, a possible deviation
from the flow and return temperature can be compensated with this value.
Example: Displayed collector temp. 40° C, measured flow temp. 39° C,
displayed storage temp. 30° C, measured return temp. 31° C means a
setting of -20% (Displayed ΔT 10K, actual ΔT 8K => -20% correction value)
Settings range: -50% to +50% /default settings: 0%
Resulting data is only approximate value for function control!
Caution
41
Special functions
7.9. - Starting aid
(solar only)
With some solar systems, especially with vacuum tube collectors, it may occur that
the measurement value acquisition at the collector sensor occurs too slowly or too
inaccurately because the sensor is often not at the hottest location. When the start
help is activated the following sequence is carried out:
If the temperature at the collector sensor increases by the value specified under
“Increase” within one minute, then the solar pump is switched on for the set “Purging
time” so that the medium to be measured can be moved to the collector sensor. If
this still does not result in a normal switch-on condition, then the start help function is
subject to a 5-minute lockout time.
Start help setting range: on, off/default setting: off
Purging time setting range: 2 ... 30 sec./default setting: 5 sec.
Increase setting range: 1°C....10°C/default setting: 3°C/min.
Caution
This function should only be activated by a specialist if problems
arise with acquisition of measurement values. In particular follow
the instructions from the collector manufacturer.
7.10. - Daylight saving time
When this function is active, the controller’s clock changes automatically to and from
DST (DST, Daylight Savings Time).
42
Menu lock
8. - Menu lock
Menu “8. Menu lock” can be used to secure
the controller against unintentional changing
of the set values.
The menu is closed by pressing “esc” or selecting “Exit menu lock”.
The menus listed below remain completely accessible despite the menu lock being
activated, and can be used to make adjustments if necessary:
1. Measurement values
2. Analysis
3. Display mode
7.2. Time&date
8. Menu lock
9. Service values
To lock the other menus, select “Menu lock on”.
To enable the menus again, select “Menu lock off”.
Setting range: on, off/default setting: off
43
Service values
9. - Service values
The menu “9. Service values” can be used
for remote diagnosis by a specialist or the
manufacturer in the event of an error, etc.
Caution
Enter the values at the time when
the error occurs e.g. in the table.
The menu can be closed at any time by
pressing “esc”.
Language
10. - Language
Menu “10. Language” can be used to select the language for the menu guidance.
This is queried automatically during initial
commissioning. The choice of languages
may differ, however, depending on the
device design. Language selection is not
available in every device design!
44
Malfunctions
Z.1
Malfunctions with error messages
Info and warnings
If the controller detects a malfunction, the
red light flashes and the warning symbol
also appears in the display. If the error
is no longer present, the warning symbol
changes to an info symbol and the red
light no longer flashes. To obtain more detailed information on the error, press the
key under the warning or info symbol.
Danger
Do not try to deal with this yourself.
Consult a specialist in the event of
an error!
Error messages:
Notes for the specialist:
Sensor x defective
Either the sensor, the sensor input at the controller or
the connecting cable is/was defective.
(Resistance table on page 5)
Collector alarm
The collector has exceeded the temperature set
under menu 6.5
On / Off too often
The solar pump was switched more than 6 times
in 5 minutes.
Restart
The controller was restarted, for example due to a
power failure. Check the date&time!
45
Fuse
Z.2
Replacing the fuse
Danger
Repairs and maintenance may only be performed by a specialist. Before
working on the unit, switch off the power supply and secure it against
being switched on again! Check for the absence of power!
Danger
Only use the supplied spare fuse or a fuse of the same design with the
following specifications: T2A 250V
Z.2.1
Fuse
If the mains voltage is switched on and the controller still does not function or display
anything, then the internal device fuse may be defective. In that case, open the device
as described under C.1, remove the old fuse and check it. Exchange the defective
fuse for a new one, locate the external source of the error (e.g. pump) and exchange it.
Then first recommission the controller and check the function of the switch outputs in
manual mode as described under 4.2.
46
Maintenance
Z.3.
Caution
Maintenance
In the course of the general annual maintenance of your heating system you
should also have the functions of the controller checked by a specialist and
have the settings optimised if necessary.
Performing maintenance:
- Check the date and time (see „7.4. - Time and Date“ on page 40 )
- Assess/check plausibility of analyses (see „2. - Statistics“ on page 23)
- Check the message log (see „2.5. - Message log“ on page 23)
- Verify/check plausibility of the current measurement values
(see „1. - Measurement values“ on page 22)
- Check the switch outputs/consumers in manual mode (see „4.2. - Manual“ on page 25)
- If necessary: Optimise the parameter settings
47
Hydraulic variant set:
Commissioned on:
Commissioned by:
Notes:
Final declaration:
Although these instructions have been created with the greatest possible care, the
possibility of incorrect or incomplete information cannot be excluded. Subject as a
basic principle to errors and technical changes.
48
Your specialist dealer:
STDC_ST_English121321
SOREL
Manufacturer:
SOREL GmbH Mikroelektronik
Jahnstr. 36
D - 45549 Sprockhövel
Tel. +49 (0)2339 6024
Fax +49 (0)2339 6025
www.sorel.de info@sorel.de
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