Sorel STDC Installation And Operating Instructions Manual
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Summary of Contents for Sorel STDC
- Page 1 Temperature difference controller STDC Installation and operating instructions applies to STDC version 1 - 4 Read carefully before installation, commissioning and operation...
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Page 2: Table Of Contents
Time & Date Changes to the Unit Sensor Calibration Warranty and Liability Commissioning Disposal and Pollutants Factory settings Heat quantity Description STDC Starting aid About the Controller Purging time Technical Data Increase Scope of Supply Daylight saving time Hydraulic Variants 8. - Page 3 This manual applies to the following different hardware versions. STDC Version 1 3 temperature sensor inputs 1 relay output 230 AC (on/off) STDC Version 2 3 temperature sensor inputs 1 electronic relay output 230 AC (for speed control of standard pumps)
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Page 4: Safety Instructions
Safety Instructions EU-Conformity By affixing the CE mark to the unit the manufacturer declares that theSTDC conforms to the following relevant safety regulations: EU low voltage directive 2014/35/EU EU 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. -
Page 5: Changes To The Unit
About the Controller The Temperature difference controller STDC facilitates efficient use and function control of your solar or heating system possible while its handling 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. -
Page 6: Technical Data
Operation 4 entry keys Scope of Supply Single circuit solar controller STDC 4 strain relief clips with 8 screws, replacement fuse 2AT 2 screws 3,5 x 35 mm and 2 plugs 6 mm for wall installation. STDC installation and operating instructions... -
Page 7: Hydraulic Variants
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. Depending 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. -
Page 8: Installation
Installation Electrical Terminals Low voltages Mains voltages max. 12 VAC / DC 230 VAC 50 - 60 Hz Terminal: Connection for: Terminal: Connection for: Network outer conductor L Temperature Sensor 1 Network neutral conductor N Temperature Sensor 2 Relay 3 closer Temperature Sensor 3 Neutral conductor N Relay 0-10V / PWM output for speed controlled HE-... -
Page 9: Electrical Terminals
Sensor 3 (optional) Pump neutral conductor N The polarity of the sensors S1-S3 is freely selectable. Break contact (STDC Version 0-10V/ PWM +/- ( STDC Version 1+3) 3+4 ) GND V1 Program 3 Solid fuel with storage tank Mains voltages... - Page 10 Sensor 3 (optional) Valve neutral conductor N The polarity of the sensors S1-S3 is freely selectable. N Break contact (STDC Version 0-10V/ PWM +/- ( STDC Version 1+3) 3+4 ) GND V1 Actuating direction of valve: R1 on/valve on = direction through the storage tank...
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Page 11: Wall Installation
Sensor 3 secondary circuit Pump neutral conductor N The polarity of the sensors S1-S3 is freely selectable. Break contact (STDC Ver- 0-10V/ PWM +/- ( STDC Version sion 1+3) 3+4 ) GND V1 Both pumps are connected to the same relay. -
Page 12: Electrical Connection
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. -
Page 13: Installing The Temperature Sensors
Installing the Temperature Sensors The controller operates with Pt1000 temperature sensors which are accurate to 1 °C, ensuring optimal control of system functions. 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. -
Page 14: Commissioning Help
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 correct order. Every parameter is explained on the display of the controller. Pressing the “esc”... -
Page 15: Statistics
2. Statistics Serve for function control and long-term monitoring of the system. For time-dependent functions such as circulation and anti-legionella and the evaluation of system data, it is essential that the time is accur- ately set 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. -
Page 16: Display Mode
3. Display mode 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”. -
Page 17: Operating Mode
4. Operating Mode Auto The automatic mode is the normal mode of the controller. A correct controller function under consideration of the current temperatures and the set parameters is only present in automatic mode! After an interruption of the mains voltage, the controller automatically returns to the last operating mode selected. -
Page 18: Settings
5. Settings By no means does the controller replace the safety appliances on site! Tmin S1 Enable/start temperature at sensor 1: If this value on the sensor 1 (collector sensor) is exceeded and the other conditions are not fulfilled, the controller will turn on the affil- iated pump or the valve. -
Page 19: Thermostat Periods
Temperature values which are set too high can lead to scalding or damage to the system. Scalding protection must be provided by the customer! Thermostat periods Here the desired periods are set in which the thermostat function is approved. For each weekday, three times can be specified, fur- thermore, you can copy individual day to other days. -
Page 20: Protective Functions
6. Protective Functions The 'Protective functions‘ can be used by specialists to activate and set various pro- tective functions. By no means does the controller replace the safety appliances on site! Seizing Protection If the anti-seizing protection is activated (daily, weekly, off), the controller switches the outputs on/off at 12:00 noon for 5 seconds to pre- vent seizing of the pump/valve after long periods of inactivity. -
Page 21: Anti-Legionella
Energy is lost through the collector through this function! The recooling should only be activated in cases of exception, with low heat acceptance, for example, during vacation. Anti-Legionella The anti-legionella function is an additional function for certain relay functions such as: electric heating rod, burner, cir- culation, compressor. -
Page 22: Special Functions
7. 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 program selec- tion may lead to unpredictable errors. -
Page 23: Speed Control
Speed control If the speed control is activated, it STDC offers the possibility through a special internal electronic system to change the speed of pumps depending on the process. The relay R1, R2 and the Pwm and 0-10V outputs can work with the speed controlled. -
Page 24: Sensor Calibration
For time-dependent functions such as circulation and anti-legionella and the evaluation of system data, it is essential that the time is accurately set 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. -
Page 25: Purging Time
Purging time If the temperature on the collector sensor increases within a minute by the value defined under “increase”, the solar circulation pump will be turned on for the set “purging time” so that the medium to be measured is transported to the collector sensor. If the set ΔT is not reached, a 5-minute circulation pause time for the starting aid function will apply. -
Page 26: Menu Lock
8. Menu Lock Secure the controller against unintentional changing and compromise of basic func- tions. Menu lock active = "On" Menu lock off = "Off" In addition, the "Simple" menu view can be used to hide menu items that are not necessary for the daily use of the controller after commissioning. -
Page 27: Malfunctions/Maintenance
Malfunctions/Maintenance Replacing the Fuse 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 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 V. 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. -
Page 28: Final Declaration
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) +49 (0)2335 682 77 0 +49 (0)2335 682 77 10 info@sorel.de www.sorel.de...
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