Sorel TC User manual

Temperature controller TC
Installation and operating instructions
Read carefully before installation, commissioning and operation

Content
Safety Instructions 3
EU-Conformity 3
General instructions 3
Explanation of Symbols 3
Changes to the Unit 4
Warranty and Liability 4
Disposal and Pollutants 4
Description TC 5
About the Controller 5
Specifications 5
Scope of supply 5
Hydraulic Variants 6
Installation 6
Electrical Terminals 6
Electrical Connection 7
Wall Installation 7
Installing the Temperature Sensors 8
Temperature Resistance Table for Pt1000 Sensors 8
Operation 8
Display and Input 8
Commissioning help 9
1. Measurement values 9
2. Statistics 9
Operating hours 9
Heat quantity 10
Graphic overview 10
Error Messages 10
Reset / Clear 10
3. Operating mode 10
Automatic 10
Manual 10
Off 10
4. Settings 10
Tset on/off 10
PV contact 11
Set PV off 11
Operating hours 11
5. Protective Functions 12
Seizing Protection 12
Anti Legionella 12
6. Special Functions 13
Program selection 13
Time & Date 13
Sensor Calibration 13
Commissioning 13
Factory Settings 13
Daylight saving time 13
Eco Display Mode 13
7. Menu Lock 14
8. Service values 14
9. Language 14
Malfunctions/Maintenance 15

Safety Instructions
EU-Conformity
By affixing the CE mark to the unit the manufacturer declares that TC conforms to the following relevant safety regulations:
lEU low voltage directive 2014/35/EU
lEU electromagnetic compatibility directive 2014/30/EU
conforms. Conformity has been verified and the corresponding documentation and the EU declaration of conformity are kept on
file by the manufacturer.
General instructions
Please read carefully!
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 and understood com-
pletely by the installation technician/specialist and by the system user before installation, commissioning and operation of the
unit.
This unit is an automatic, electrical Thermostat Controller. Install the device only in dry rooms and under environmental con-
ditions as described under "Technical Data".
The valid accident prevention regulations, VDE regulations, the regulations of the local power utility, the applicable DIN-EN stand-
ards and the installation and operating instruction of the additional system components must also be observed.
Under no circumstances does the unit replace any safety devices to be provided by the customer!
Installation, electrical connection, commissioning and maintenance of the device may only be carried out by an appropriately
trained specialist. Users: Make sure that the specialist gives you detailed information on the function and operation of the unit.
Always keep these instructions in the vicinity of the unit.
The manufacturer does not take over any liability for damage caused through improper usage or non-compliance of this manual!
Explanation of Symbols
Danger
Failure to observe these instructions can result in electrocution.
Danger
Failure to observe these instructions can result in serious damage to health such as scalding or life-threatening
injuries.
Caution
Failure to observe these instructions can result in destruction of the unit or the system, or environmental dam-
age.
Caution
Information which is especially importation for the function and optimal use of the unit and the system.
3

Changes to the Unit
lChanges, additions to or conversion of the unit are not permitted without written permission from the man-
ufacturer.
lIt is likewise forbidden to install additional components that have not been tested together with the unit.
lIf it becomes clear that safe operation of the unit is no longer possible, for example because of damage to the
housing, turn the Unit off immediately.
lAny parts of the unit or accessories that are not in perfect condition must be exchanged immediately.
lUse only original spare parts and accessories from the manufacturer.
lMarkings made on the unit at the factory must not be altered, removed or made illegible.
lOnly the settings described in these instructions may be set using the Unit.
Changes to the unit can compromise the safety and function of the unit or the entire system.
Warranty and Liability
The Unit has been manufactured and tested with regard to high quality and safety requirements. 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:
lFailure to observe these installation and operating instructions.
lImproper installation, commissioning, maintenance and operation.
lImproperly executed repairs.
lUnauthorized structural changes to the unit.
lUse of the device for other than its intended purpose.
lOperation above or below the limit values listed in the ‚Specifications‘ section.
lForce majeure.
Disposal and Pollutants
The unit conforms to the European RoHS 2011/65/EU for the restriction of the use of certain hazardous substances in electrical
and electronic equipment.
Under no circumstances may the device be disposed of with the normal household waste. Dispose of the unit only at
appropriate collection points or ship it back to the seller or manufacturer.
4

Description TC
About the Controller
The Thermostat Controller TC facilitates efficient use and function control of your solar or heating system possible while its hand-
ling is intuitive. After every input step the suitable functions are matched to the keys and explained in a text above. In the menu
'measurement values and settings' are help text and graphics in addition to key words.
The TC can be used for the various system variants.
Important characteristics of the TC are:
lDepiction of graphics and texts using a lit display.
lSimple viewing of the current measurement values.
lStatistics and system monitoring by means of statistical graphics
lExtensive setting menus with explanations.
lMenu block can be activated to prevent unintentional setting changes.
lResetting to previously selected values or factory settings.
Specifications
Model TC Thermostat Controller
Temperature controller class I
Energy efficiency 1%
Standby loss 0,5 W
Request type heater On/Off
Electrical specifications:
Power supply 100 - 240VAC, 50 - 60 Hz
Power consumption / standby 0,5W - 2,5W/ 0,5 W
Total switched power 3000W
Internal fuse 1 1
Protection category IP40
Protection class / overvoltage category II / II
Inputs/Outputs
Sensor inputs 3 3 -40 °C ... 300 °C
Outputs mechanical relay 1
potential free relay R1 3000VA for AC1/3000W for AC3
Max. cable length
Pt1000 sensor <10m
mechanical relay <10m
Permissible Ambient Conditions
for controller operation 0 °C - 40 °C, max. 85 % rel. humidity at 25 °C
for transport/storage 0 °C - 60 °C, no moisture condensation permitted
Other Specifications and Dimensions
Housing design 2-part, ABS plastic
Installation methods Wall installation, optionally panel installation
Overall dimensions 115 mm x 86 mm x 45 mm
Aperture installation dimensions 108 mm x 82 mm x 25,2 mm
Display Fully graphical display, 128 x 64 dots
Real Time Clock RTC with 24 hour power reserve
Operation 4 entry keys
Scope of supply
lThermostat Controller
l3 screws 3,5 x 35 mm and 3 plugs 6 mm for wall installation.
l4 strain relief clips with 8 screws, replacement fuse 2TA
lTC Installation and operating instructions
5

Hydraulic Variants
The following illustrations should be regarded only as schematic representations of the respective hydraulic systems
and do not claim to be complete. Under no circumstances should the controller replace any safety devices. Depend-
ing on the specific application, additional system and safety components such as check valves, non-return valves,
safety temperature limiters, scalding protectors, etc., may be required.
Program 1 Temperature display Program 2 Thermostat function
Sensor for switch on / off.
Program 3 Thermostat function
Switch on sensor S1.
Switch off sensor S2.
Program 4 Thermostat function
Switch on sensor S1.
Switch off sensor S3.
Program 5 Thermosyphon
Installation
Electrical Terminals
Mains voltages
230 VAC 50 - 60 Hz
Low voltages
max. 12 VAC / DC
Terminal: Connection for:
L Network outer conductor L
N Network neutral conductor N
RI Relay (NO normally open) NO
R Relay (C common) C
Terminal: Connection for:
S1 Temperature Sensor 1
S1 Temperature Sensor 1 (GND)
S2 Temperature Sensor 2
S2 Temperature Sensor 2 (GND)
S3 Temperature Sensor 3
S3 Temperature Sensor 3 (GND)
V1 0-10V / PWM output for speed controlled
HE-pumps
- GND
Vi PWM return signal (e.g., pump - not used)
The PE protective conductor must be connected to the PE
metal terminal block!
The matching terminal assignment to your system or hydraulic diagram, see the descriptions in the respective
hydraulic diagram, see " Hydraulic Variants " on page 6.
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Electrical Connection
Before working on the unit, switch off the power supply and secure it against being switched on again! Check that there
is no power flowing! Electrical connections may only be made by a specialist and in compliance with the applicable
regulations. The unit may not be put into operation if there is visible damage to the housing, e.g. cracks.
The unit may not be accessible from behind.
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.
The customer must provide an all-pole disconnecting device, e.g. an emergency heating switch.
The cables being connected to the unit must not be stripped by more than 55 mm, and the cable jacket must reach into
the housing just to the other side of the strain relief.
Wall Installation
1. Unscrew cover screw completely.
2. Carefully pull upper part of housing from lower part.
3. Set upper part of housing aside Do not touch the electronics.
4. Hold the lower part of the housing up to the selected position and
mark the two mounting holes. Make sure that the wall surface is as
even as possible so that the housing does not become distorted
when screwed on.
5. Using a drill and size 6 bit, drill three holes at the points marked on
the wall and push in the plugs. Optionally the housing can be mount
with 4 mounting holes.
6. Insert the upper screw and screw it in slightly.
7. Fit the upper part of the housing and insert the other two screws.
8. Align the housing and tighten the three screws.
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Installing the Temperature Sensors
The controller operates with Pt1000 temperature sensors which are accurate to 1 °C, ensuring optimal control of system func-
tions.
If desired, the sensor cables can be extended to a maximum of 30 m using a cable with a cross-section of at least
0.75 mm². Ensure there is no contact resistance! 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.
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.
Temperature Resistance Table for Pt1000 Sensors
°C -20 -10 0 10 20 30 40 50 60 70 80 90 100
Ω 922 961 1000 1039 1077 1116 1155 1194 1232 1270 1308 1347 1385
Operation
Display and Input
Warning/Error message
New information available
The display‘s (1), extensive text and graphical mode,
enables simple, almost self-explanatory, operation of the con-
troller.
Entries are made using 4 keys (2+3), to which contextual
functions are assigned. The ‚esc‘ key (3) is used to cancel an
entry or to exit a menu. If applicable, a request for con-
firmation appears to save the made changes.
The function of the other 3 keys (4) is shown in the display
right above the keys. The right-hand key generally has a con-
firmation and selection function.
The graphics mode appears if no key is pressed for 2
minutes or after exiting the main menu with ‘esc’.
Hitting the "esc" key in the graphics mode takes you directly
to the main menu.
Examples for key settings:
+/- Increase / decrease values
▼/▲ Scroll down / up menu
Yes/No agree / reject
About further information
Back to the previous display
Ok Confirm selection
Confirm Confirm setting
8

Commissioning help
1. Set language and time
2. Commissioning help / setup wizard
a) select or
b) skip.
The setup wizard guides through the necessary basic settings in the cor-
rect order. Each parameter is explained in the control
display. Pressing the „esc“ key takes you back to the previous setting.
b) With free commissioning the settings should be made in the following order:
lmenu 10. Language
lmenu 3. Time, Date and Operating Times.
lmenu 5. Heating Circuit Settings, all values.
lmenu 6. Protection Functions (if any adjustments necessary).
lmenu 7. Special Functions (if any adjustments necessary).
The setup wizard can be accessed in menu 7.2. at any time.
Consider the explanations for the individual parameters on the following pages and check if further settings are
necessary for your application.
3. In Menu operating mode “Manual”, test the switch outputs with the consumers connected and check the sensor values for
plausibility. Then set to automatic mode.see " Manual " on page 10
1. Measurement values
Serve to display the current measured temperatures.
If ‚error‘ appears on the display instead of the measurement
value, there may be a defective or incorrect temperature sensor.
If the cables are too long or the sensors are not well-placed, small
deviations in the measurement values may occur. In this case, the
display values can be compensated by adjustments in the con-
troller - see ‚Sensor calibration‘. The selected program, con-
nected sensors and the specific model design determine which
measurement values are displayed.
2. Statistics
Serve for function control and long-term monitoring of the system.
For system data statistics it is essential for the time to be set
accurately on the controller. Please note that the clock con-
tinues to run for about 24 hours if the mains voltage is inter-
rupted, and afterward must be reset. Improper operation or an
incorrect time may result in data being cleared, recorded incor-
rectly or overwritten. The manufacturer accepts no liability for
the recorded data!
Operating hours
Display of the operating hours of the relay connected to the controller, whereby different time ranges (day-years) are available!
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Heat quantity
Display of the consumed heat quantity form the system in kWh.
Graphic overview
This results in a clear illustration of the data as a bar graph. Different time ranges are available for comparison. You can page
through with the two left keys.
Error Messages
Display of the last 15 errors in the system with indication of date and time.
Reset / Clear
Resetting and clearing the selected statistics. Selecting ‚all statistics‘ clears everything except the error log.
3. Operating mode
To specify the operating modes for the heating circuit. After an interruption of
the mains voltage, the controller automatically returns to the last operating
mode selected.
Only in automatic mode does the controller use the set operating
times and the correspondingly set target flow temperatures!
Automatic
The automatic mode is the normal mode of the controller. A correct controller function under consideration of the current tem-
peratures and the set parameters is only present in automatic mode! After an interruption of the mains voltage, the controller auto-
matically returns to the last operating mode selected.
Manual
In ‚Manual‘ mode, the individual relay outputs and the connected consumers can be checked for proper functioning and correct
assignment.
The operating mode ‚Manual‘ may only be used by specialists for brief function tests, e.g. during commissioning! Func-
tion in manual mode: The relays and thus the connected consumers are switched on and off by pressing a key, with no
regard to the current temperatures and set parameters. At the same time, the current measurement values of tem-
perature sensors are also shown in the display for the purposes of function control.
Off
If the operating mode “off” is enabled, all control functions are turned off. The measured temperatures are displayed for
the overview.
4. Settings
The basic settings for the control function of the heating circuit are applied.
Basic settings applied.
By no means does the controller replace the safety appliances on
site!
Tset on/off
Set temperature on / off
temperature for switching the thermostat on / off is set here.
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Program 1
In this program only temperatures are sown in the display without thermostat switch.
Programm 2
Thermostat is switched on, if the temperature at sensor S1 is below "Tset on" and is switched off again when "Tset off" is reached
at sensor S1.
Programm 3
Thermostat is switched on, if the temperature at sensor S1 is below "Tset on" and is switched off again when "Tset off" is reached
at sensor S2.
Programm 4
Thermostat is switched on, if the temperature at sensor S1 is below "Tset on" and is switched off again when "Tset off" is reached
at sensor S3.
Temperature values which are set too high can lead to scalding or damage to the system. Scalding protection must be
provided by the customer!
PV contact
This sensor input could be used as a PV-contact of Photovoltaic-System.
This sensor is observed to "short circuit" (PV-Contact closed).
If the PV contact is closed, programs 2 - 4 "Set PV off" are taken into account as the switch-off temperature.
Depending on the requirements and the program, the storage tank can be heated up to a higher temperature level via PV power.
Information about the operation and the connection of PV-contact, refer to the technical description of your PV sys-
tem.
Set PV off
The temperature set here is set as the switch-off temperature in programs 2 - 4 when the PV contact is closed
considered.
Operating hours
Here the desired periods are set in which the thermostat function is approved. For each weekday, three times can be specified,
furthermore, you can copy individual day to other days. The thermostat function is shut down outside of the set times.
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5. Protective Functions
The 'Protective functions‘ can be used by specialists to activate and set vari-
ous protective functions.
By no means does the controller replace the safety appliances on
site!
Seizing Protection
If the anti-seizing protection is activated, the controller switches the heat pump and the mixer on/off at 12:00 noon for 5 seconds to
prevent seizing of the pump/valve after long periods of inactivity.
Anti Legionella
With the help of the anti legionella function (hereinafter referred to as: AL), the system can be heated up at selected times in order
to free it of legionella.
In the delivery state, the anti legionella function is switched off.
As soon as it has heated up with “AL” turned on, information with the date will be shown in the display.
This anti legionella function does not offer any secure protection against legionella, because the controller requires an
adequate added amount of energy and the temperatures cannot be monitored in the entire storage area and the con-
nected pipe system. For secure protection against legionella, a heating up to the requried temperature as a well as a
simultaneous circulation of water in the storage and pipe system must be guaranteed through energy sources and
external control devices.
During the operation of the anti legionella function, if applicable, the storage is heated above the set value “Tmax”,
which may lead to scalding and system damage.
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6. Special Functions
Used to set basic items and expanded functions.
The settings in this menu should only be changed by a specialist.
Program selection
Here the hydraulic variation fitting to the respective use case is selected and set.
The program selection normally occurs only once during the first entry into service by a specialist. An incorrect pro-
gram selection may lead to unpredictable errors.
Time & Date
Serve to set the current time and date.
For system data statistics it is essential for the time to be set accurately on the controller. Please note that the clock
continues to run for about 24 hours if the mains voltage is interrupted, and afterward must be reset. Improper oper-
ation or an incorrect time may result in data being cleared, recorded incorrectly or overwritten. The manufacturer
accepts no liability for the recorded data!
Sensor Calibration
Deviations in the temperature values displayed, for example. due to cables which are too long or sensors which are not posi-
tioned optimally can be compensated for manually here. The settings can be made for each individual sensor in steps of 0.5 °C.
Settings are only necessary in special cases at the time of initial commissioning by the specialist. Incorrect meas-
urement values can lead to unpredictable errors.
Commissioning
Starting 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 ‚esc‘ more than once takes you back to the selection mode,
thus cancelling the commissioning help see " Commissioning help " on page 9
May only be started by a specialist during commissioning! Observe the explanations for the individual parameters in
these instructions, and check whether further settings are necessary for your application.
Factory Settings
All settings can be reset, returning the controller to its delivery state.
All of the controller‘s parametrization, statistics, etc. will be lost irrevocably. The controller must then be commissioned
once again.
Daylight saving time
If this function is activated, the controller automatically changes to winter time or summer time (DST, Daylight Savings Time).
Eco Display Mode
In Eco Display Mode the backlight of the display is switched off if no buttons are pushed for 2 minutes.
13

If a message exists, the backlight does not switch off until the message has been scanned by the user.
7. Menu Lock
Secure the controller against unintentional changing and compromise of
basic functions.
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. Statistics
3. Times
8. Menu lock
9. Service values
8. Service values
Serve for remote diagnosis by a specialist or the manufacturer in the event
of errors, etc.
Enter the values into the table when an error occurs.
9. Language
To select the menu language. For initial commissioning the query is auto-
matic.
14

Malfunctions/Maintenance
Replacing the Fuse
Repairs and maintenance may only be performed by a specialist. Before working on the unit, switch off the power sup-
ply and secure it against being switched on again! Check that there is no power flowing!
Only use the supplied spare fuse or a fuse of the same design with the following specifications: 2 AT/250 VSOREL Art.
No.: 2125
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 in section C, remove the old fuse
and check it.
Exchange the defective fuse for a new one, locate the
external source of the error (e.g. the pump) and
exchange it. Then first recommission the controller and
check the function of the switch outputs in manual mode
as described in Section 3.2..
Maintenance
In the course of the general annual maintenance of your heating system, the functions of the controller should also
checked by a specialist and the settings should be optimized if necessary.
Performing maintenance:
lCheck date & time ()
lAssess/check plausibility of statistics (see Section 2)see " Serve for function control and long-term monitoring of
the system. " on page 9
lCheck the error memory see " Error Messages " on page 10
lVerify/check plausibility of the current measurement values see " Measurement values " on page 9
lCheck the switch outputs/consumers in manual mode see " Manual " on page 10
lPossibly optimize the parameter settings.
Possible error messages
Possible error messages Notes for the specialist
Check time Means that the solar pump is/was in operation between 11:00 PM and 4:00 AM. Normally hap-
pens when the clock is incorrectly set, but can also suggest a malfunction while the solar cir-
culation pump was in operation outside of hours with sun.
Time & Date This display appears automatically after a longer network disruption, because the time & date
must be examined and, if applicable, adjusted.
Sensor x defective Means that either the sensor, sensor input on the controller or the connection line is / or was
defective
(see " Temperature Resistance Table for Pt1000 Sensors " on page 8)
AL failed Is displayed when AL ref -5 °C was not measured for the set Al residence time at the AL
sensor.
15

Final declaration
Although these instructions have been created with the greatest possible care, the possibility of incorrect or incomplete inform-
ation cannot be excluded. Subject as a basic principle to errors and technical changes.
Date and time of installation:
Name of installation company:
Space for notes:
Your specialist dealer: Manufacturer:
SOREL GmbH Mikroelektronik
Reme-Str. 12
D - 58300 Wetter (Ruhr)
[phone]
[phone]
[e-mail]
www.sorel.de
Version: 29.06.2017
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