Table of Contents
Summary of Contents for AkoTec TDC3
- Page 1 Installation and Commissioning Manual Temperature Difference Controller TDC 3 AkoTec Produktionsgesellschaft mbH * Grundmühlenweg 3 * 16278 Angermünde Tel: 03332-29 66 88 * Fax: 03212-12 76 490 * Email: info@akotec.eu * www.akotec.eu...
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Page 2: Table Of Contents
Contents Settings EC declaration of conformity Tmin S1 General instructions Tmin S2 Explanation of symbols Tmin S3 EC declaration of conformity Tmax S2 Warranty and liability Tmax S3 Specifications ∆T R1 About the controller ∆T R2 Scope of supply Tset S3 Disposal and pollutants Hysteresis Hydraulic variants... -
Page 3: Ec Declaration Of Conformity
A.1 EC declaration of conformity instructions By affixing the CE mark to the unit the manufacturer declares that the Temperature-Difference- Controller 3, hereinafter refererred to as TDC 3, conforms to the following relevant safety regulations: EC low voltage directive 73/23/EEC, as amended by 93/68/EEC EC electromagnetic compatibility directive 89/336/EEC version 92/31/EEC version 93/68/EEC Conformity has been verified and the corresponding documentation and the... -
Page 4: Ec Declaration Of Conformity
A.4 Changes to the unit Changes to the unit can compromise the safety and function of the unit or the entire system. Danger Changes, additions to or conversion of the unit are not permitted without the written permission from the manufacturer It is likewise forbidden to install additional components that have not been tested together with the unit If it becomes clear that safe operation of the unit is no longer possible, for example... -
Page 5: Specifications
B.1 Specifications Electrical specifications: Mains voltage 230 VAC +/- 10% Mains frequency 50...60 Hz Power consumption 2 VA Switched power Electronic relay R1 min.20 W...max.120 W for AC3 Mechanical relay R2 460 VA for AC1 / 185 W for AC3 Internal fuse 2 A slow-blow 250 V Protection category... -
Page 6: About The Controller
B.2 About the controller The Temperature Difference Controller TDC 3 facilitates efficient use and function control of your solar or heating system. The device is impressive most of all for its functionality and simple, almost self-explanatory operation. For each step in the input process the individual entry keys are assigned to appropriate functions and explained. -
Page 7: Hydraulic Variants
B.5 Hydraulic variants 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 Caution components and safety components may be mandatory, such as check valves, non-return valves, safety temperature limiters, scalding protectors,... -
Page 8: Wall Installation
C.1 Wall Installation 1. Unscrew cover screw completely C.1.1 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 up to the selected position and mark the 3mounting holes. -
Page 9: Electrical Connection
C.2 Electrical connection 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. -
Page 10: Installing The Temperature Sensors
C.2.1 1. Select necessary program/hydraulics (Fig. B5 resp. D.1 - D.20) 2. Open controller as described under C.1. 3. Strip cables by 55 mm max., insert, fix the strain relief devices, strip the last 8 - 9 mm of the wires (Fig. C.2.1) 4. -
Page 11: D Terminal Connection Diagrams
D Terminal connection diagrams D.1 Solar with storage tank Mains side Low voltage max. 12VAC/DC connection Sensor side 230 VAC in the left-hand terminal compartment! max. 12 V Terminal: Connection for: S1 (2x) Sensor 1 collector S2 (2x) Sensor 2 storage tank S3 (2x) Sensor 3 (optional) The polarity of the sensors is freely selectable. - Page 12 D.3 Solar with bypass Sensor side Low voltage max. 12 VAC/DC connection Mains side max. 12 V in the left-hand terminal compartment! 230 VAC Terminal: Connection for: S1 (2x) Sensor 1 collector S2 (2x) Sensor 2 storage tank S3 (2x) Sensor 3 forward flow The polarity of the sensors is freely selectable.
- Page 13 D.5 Solar with 2 zone storage tanks Low voltage max. 12 VAC/DC connection Mains side Sensor side in the left-hand terminal compartment! 230 VAC max. 12 V Terminal: Connection for: S1 (2x) Sensor 1 collector S2 (2x) Sensor 2 storage tank low S3 (2x) Sensor 3 storage tank top The polarity of the sensors is freely selectable.
- Page 14 D.7 Solar 2 coll. (east/west) Mains side Low voltage max. 12 VAC/DC connection Sensor side 230 VAC in the left-hand terminal compartment! max. 12 V Terminal: Connection for: S1 (2x) Sensor 1 collector 1 S2 (2x) Sensor 2 storage tank S3 (2x) Sensor 3 collector 2 The polarity of the sensors is freely selectable.
- Page 15 D.9 Solar 2 Storage tank/valve Mains side Low voltage max. 12 VAC/DC connection Sensor side 230 VAC in the left-hand terminal compartment! max. 12 V Terminal: Connection for: S1 (2x) Sensor 1 collector S2 (2x) Sensor 2 storage tank 1 S3 (2x) Sensor 3 storage tank 2 The polarity of the sensors is freely selectable.
- Page 16 D.11 Solar with follow-on storage tank/Solar & transfer“ Low voltage max. 12VAC/DC connection Mains side Sensor side in the left-hand terminal compartment! 230 VAC max. 12 V Terminal: Connection for: S1 (2x) Sensor 1 collector S2 (2x) Sensor 2 storage tank 1 S3 (2x) Sensor 3 storage tank 2 The polarity of the sensors is freely selectable.
- Page 17 D.13 Solar storage tank/pool Mains side Low voltage max. 12 VAC/DC connection Sensor side 230 VAC max. 12 V in the left-hand terminal compartment! Terminal: Connection for: S1 (2x) Sensor 1 collector S2 (2x) Sensor 2 storage tank S3 (2x) Sensor 3 swimming pool The polarity of the sensors is freely selectable.
- Page 18 D.15 Solar + cooling 2 Mains side Low voltage max. 12 VAC/DC connection Sensor side 230 VAC in the left-hand terminal compartment! max. 12 V Terminal: Connection for: S1 (2x) Sensor 1 collector S2 (2x) Sensor 2 storage tank S3 (2x) Sensor 3 optional The polarity of the sensors is freely selectable.
- Page 19 D.17 Solar + solid fuel boiler Mains side Sensor side Low voltage max. 12 VAC/DC connection 230 VAC max. 12 V in the left-hand terminal compartment! Terminal: Connection for: S1 (2x) Sensor 1 collector S2 (2x) Sensor 2 storage tank S3 (2x) Sensor 3 solid fuel boiler The polarity of the sensors is freely selectable.
- Page 20 D.19 Universal ∆T controller Mains side Sensor side Low voltage max. 12 VAC/DC connection 230 VAC max. 12 V in the left-hand terminal compartment! Terminal: Connection for: S1 (2x) Sensor 1 (control) S2 (2x) Sensor 2 (reference) S3 (2x) Sensor 3 (thermostat) The polarity of the sensors is freely selectable.
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Page 21: Display And Input
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. The LED (2) lights up green when a relay is switched on. The LED (2) lights up red when operating mode “Off”... -
Page 22: Commissioning Help
E.2 Commissioning help 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 parametrize 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. -
Page 23: Menu Sequence And Menu Structure
E.4 Menu sequence and menu structure The graphics or overview mode appears when no key has been press 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: Current temperature values with explanations... -
Page 24: 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 measurement values”. Selecting “Info” leads to a brief help text explaining the measurement values. Selecting “Overview” or “esc” exits the Info mode If “Error”... -
Page 25: 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”. For analysis of the system data it is essential for the time to be set accurately on the controller. -
Page 26: 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”... -
Page 27: Operating Mode
4. Operating mode 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. -
Page 28: Settings
5. Settings The necessary basic settings required for the control function are made in menu “5. Settings”. This does not under any circumstances replace the safety facilities to be provided by the customer! Caution The menu is closed by pressing “esc” or selecting “Exit settings”. -
Page 29: Tmax S2
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 associated 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. -
Page 30: Tset S3
5.7 ∆T R2 Switch-on/Switch-off temperature difference for relay R2 If this temperature difference between the reference sensors is exceeded and the other conditions are also met, then the controller switches the pump and/or the valve on. When the temperature drops to ∆T Off, then R1 is switched off. Settings range: ∆T from 4 °C to 20 °C / ∆TOff from 2 °C to 19 °C Settings range: ∆T 10 °C / ∆T off 3 °C. -
Page 31: Priority Sensor
5.10 Priority sensor Charging priority in systems with two storage tanks A setting must be made as to which storage tank (storage tank sensor) has priority for charging. Charging of the lower-priority storage tank is interrupted at regular intervals to check whether the temperature increase at the collector can enable charging of the higher-priority storage tank. -
Page 32: Party Function
5.15 “Party Function” With the party function the storage temperature is heated up once to the reference temperature (TrefS3, respectively TminS3 in energy saving mode). 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 value + hysteresis, unattached to preset thermostat times. - Page 33 07/2015 Temperature Difference Controller TDC 3 Page 33 of 47...
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Page 34: Protective Functions
6. Protective functions Menu “6. Protective functions” can be used to activate and set various protective functions. This does not under any circumstances replace the safety facilities to be Caution provided by the customer! The menu is closed by pressing “esc” or selecting “Exit settings”. -
Page 35: System Protection
6.3 System protection Priority protection System protection prevents overheating of system components by automatic shutdown of the solar pump. If “SProt Ton” is exceeded at the collector, the pump is switched off. The pump is activated again when the temperature drops below “SProt TOff”. Automatic shutdown - settings range: On / Off / Default: on SProt Ton - settings range: 60 °C to 150 °C / Default: 120 °C SProt Toff - settings range: 50 °C to Ton minus 5 °C / Default: 115 °C... -
Page 36: Cooling Functions
6.4.1 Cooling furniture The hydraulic variants are set in menu „7.1 Program selection“ Hydraulic Variant D.14 Solar + cooling 1: If „CProt Ton“ is exceeded at S1, the cooler at R2 is switched on till the temperature drops to „CProt Toff“. If the storage tank exceeds „CProt Tmax storage“, the system is switched off. Hydraulic Variant D.15 Solar + cooling 2: If „CProt Ton“... -
Page 37: Anti-Legionella
6.7 Anti-Legionella With the “AL function” activated the TDC3 makes it possible to heat the storage tank up once at certain intervals (the “AL frequency”) to a higher temperature (“AL Tset point S2”), assuming that the energy source allows this. -
Page 38: Special Functions
7. Special functions Menu “7. Special functions” is used to set basic items and expanded functions. Other than the time all settings may only be made by a specialist. Caution The menu is closed by pressing “esc” or selecting “Exit special functions”. 7.1 Program selections The suitable hydraulic variant for the specific application is selected and set here (see B.5 Hydraulic variants). -
Page 39: Commissioning
7.4 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. -
Page 40: Start Aid Function
7.7.1 Heat metering Activate or deactivate the heat metering function Settings range: On/off /default setting: Off 7.7.2 AF type Adjust the type of glycol that has been used in the system. Settings range: Ethylene/Propylene /default setting: Ethylene 7.7.3 Glycol portion Adjust the percentage of glycol that has been used in the system. -
Page 41: Speed Control
7.9 Speed control If the speed control is activated, the TDC3 makes it possible to vary the speed of standard pumps at relay R1 by means of special internal electronics. 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. -
Page 42: Purging Time
7.9.2 Purging time During this time the pump starts up at its full speed (100 %) to ensure reliable starting. Only after this purging time does the pump run with speed control and switches to the max. or min. speed, depending on the variant set. -
Page 43: 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: Measurement values Analysis... -
Page 44: 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. Enter the values at the time when the error occurs e.g. in the table. Caution 07/2015 Temperature Difference Controller TDC 3... -
Page 45: Malfunctions With Error Messages
Z.1. Malfunctions with error 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. -
Page 46: Replacing The Fuse
Z.2 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 for the absence of power! Danger Only use the supplied spare fuse or a fuse of the same design with the following specifi cations: T2A 250 V Danger Z.2.1... - Page 47 To protect against loss of data, record any analyses and data that are particularly important to you (see 2.) at regular intervals. IMPORTANT: Please pay attention to all planning, installation and commissioning manuals. These documents are available at all times on http://akotec.eu/downloads/ 07/2015 Temperature Difference Controller TDC 3 Page 47 of 47...
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