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Summary of Contents for Sorel TDC 3
- Page 1 115V Version Temperature Difference Controller TDC 3 Installation and operating instructions TDC 3 Temperature-Difference-Controller Read carefully before installation, commissioning and operation...
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Page 2: Table Of Contents
Contents Chapter Page Chapter Page Safety instructions Operating modes menu 4 1.1 EC conformity 9.1 Automatic 1.2 General instructions 9.2 Manual 1.3 Explanation of symbols 9.3 Off 1.4 Changes Settings menu 5 1.5 Warranty 10.1-10.3 Tmin... 10.4-10.5 Tmax... Description of controller 2.1 Specifi... -
Page 3: General Instructions
1.1 EC declaration of conformity By affi xing 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... -
Page 4: Changes
Safety instructions 1.4 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,... -
Page 5: Description Of Controller
Description of controller 2.1 Specifi cations Electrical specifi cations: Mains voltage 115VAC +/- 10% Mains frequency 50...60Hz Power consumption Switched power Electronic relay R1 min.20W...max.120W for AC3 Mechanical relay R2 460VA for AC1 / 185W for AC3 Internal fuse 2A slow-blow 250V Protection category IP40 Protection class... -
Page 6: About The Controller
The controller menu contains headwords for the measured values and settings, as well as help texts or clearly-structured graphics. The TDC 3 can be used as a temperature difference controller for the various system variants illustrated and explained under 2.5. -
Page 7: Hydraulic Variants
Description of controller 2.5 Hydraulic variants The following illustrations should be viewed only as schematic dia- grams showing the respective hydraulic systems, and do not claim Caution to be complete. The controller does not replace safety devices under any circumstances. Depending on the specifi... -
Page 8: Installation
Installation 3.1 Wall installation Install the controller only in dry areas and under the ambient conditions described under 2.1 “Specifi cations . Carry out the following steps 1-8. ” Caution 1. Unscrew cover screw completely Fig. 3.1.1 2. Carefully pull upper part of housing from lower part. -
Page 9: Electrical Connection
Installation 3.2 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! Danger Electrical connections may only be made by a specialist and in comp- liance with the applicable regulations. - Page 10 Installation 3.2 Electrical connection (continued) Fig. 3.2.2 “Solar with storage tank” Terminal connection diagram, program 1 Low voltage max. 12VAC/DC connec- Sensor side Mains side tion in the left-hand terminal compart- max. 12V 115VAC ment! Caution Danger Terminal: Connection for: S1 (2x) Sensor 1 collector S2 (2x) Sensor 2 storage tank S3 (2x) Sensor 3 (optional)
- Page 11 Installation 3.2 Electrical connection (continued) Fig. 3.2.4 “Solar with bypass” Terminal connection diagram, program 3 Low voltage max. 12VAC/DC connec- Sensor side Mains side tion in the left-hand terminal compart- max. 12V 115VAC ment! Caution Danger Terminal: Connection for: S1 (2x) Sensor 1 collector S2 (2x) Sensor 2 storage tank...
- Page 12 Installation 3.2 Electrical connection (continued) Fig. 3.2.6 “Solar with Terminal connection diagram, program 5 Low voltage max. 12VAC/DC connec- 2 zone storage tanks” tion in the left-hand terminal compart- Sensor side Mains side ment! max. 12V 115VAC Terminal: Connection for: Caution Danger S1 (2x)
- Page 13 Installation 3.2 Electrical connection (continued) Fig. 3.2.8 “Solar 2 coll. (east/west)” Terminal connection diagram, program 7 Sensor side Mains side Low voltage max. 12VAC/DC connec- max. 12V 115VAC tion in the left-hand terminal compart- Caution Danger ment! Terminal: Connection for: S1 (2x) Sensor 1 collector 1 S2 (2x)
- Page 14 Installation 3.2 Electrical connection (continued) Fig 3.2.10 “Solar 2 Storage tank/valve” Terminal connection diagram, program 9 Sensor side Mains side Low voltage max. 12VAC/DC connec- max. 12V 115VAC tion in the left-hand terminal compart- Caution Danger ment! Terminal: Connection for: S1 (2x) Sensor 1 collector S2 (2x)
- Page 15 Installation 3.2 Electrical connection (continued) Fig. 3.2.12 “Solar with follow-on storage Terminal connection diagram, program 11 tank/Solar & transfer“ Low voltage max. 12VAC/DC connec- Sensor side Mains side tion in the left-hand terminal compart- ment! max. 12V 115VAC Terminal: Connection for: Caution Danger S1 (2x)
- Page 16 Installation 3.2 Electrical connection (continued) Fig. 3.2.14 “Solar storage tank/pool” Terminal connection diagram, program 13 Sensor side Mains side Low voltage max. 12VAC/DC connec- max. 12V 115VAC tion in the left-hand terminal compart- Caution Danger ment! Terminal: Connection for: S1 (2x) Sensor 1 collector S2 (2x) Sensor 2 storage tank...
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Page 17: Installing The Sensors
Installation 3.2 Electrical connection (continued) Fig. 3.2.16 “Universal 2x ∆T controller” Terminal connection diagram, program 15 Sensor side Mains side Low voltage max. 12VAC/DC connec- max. 12V 115VAC tion in the left-hand terminal compart- Caution Danger ment! Terminal: Connection for: S1 (2x) Sensor 1 (control) S2 (2x) -
Page 18: Operation
Operation 4.1 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 is set. -
Page 19: Menu Sequence
Operation 4.2 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. -
Page 20: Parametrisation
Parametrisation 5.1 Commissioning help The fi rst 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. -
Page 21: Measurement Menu
Measurement values menu 1 6. Measurement values The menu “1. Measurement values” serves to display the currently mea- sured 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. -
Page 22: Operating Hours
Statistics menu 2 7. Statistics The menu “2. Statistics” is used for function control and long-term monitor- ing of the system. The submenus described under 7.1-7.6 are available. 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 ac- curately on the controller. -
Page 23: Display Mode Menu
Display mode menu 3 8. Display mode Menu “3. Display mode” is used to de- fi ne 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. -
Page 24: Operating Modes Menu
Operating modes menu 4 9. Operating mode In menu “4. Operating modes” the controller can either be placed in au- tomatic mode, switched off, or placed in a manual operating mode. The menu is closed by pressing “esc” or selecting “Exit operating modes”. 9.1 Automatic menu 4.1 Automatic mode is the normal operating mode of the controller. -
Page 25: Settings Menu
Settings menu 5 10. 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 Caution by the customer! The menu is closed by pressing “esc” or selecting “Exit settings”. -
Page 26: Tmax
Settings menu 5 10. Settings (continued) = switch-off temperature at sensor 2 10.4 Tmax S2 menu 5.x 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 27 Settings menu 5 10. Settings (continued) 10.7 ∆T R2 = switch-on temperature difference for relay R2 menu 5.x 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.
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Page 28: Priority
Settings menu 5 10. Settings (continued) charging priority in systems with 10.10 Priority sensor menu 5.x 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 29 Settings menu 5...
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Page 30: Protective Functions
Protective functions menu 6 11. Protective functions Menu “6. Protective functions” can be used to activate and set various protec- tive functions. This does not under any circumstances replace the safety facilities to be provided Caution by the customer! The menu is closed by pressing “esc” or selecting “Exit settings”. -
Page 31: Solar Protection
Protective functions menu 6 11.3 Solar protection functions menus 6.3 / 6.3.1 - 6.3.5 Two solar protection variants V1+V2 and an alarm function with additional settings are available for the hydraulic systems with solar; these are explained in more detail below. The solar protection is switched off at delivery. -
Page 32: Recooling
Protective functions menu 6 11.4 Recooling menus 6.4 / 6.4.1 - 6.4.2 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 before the storage tank temperature has dropped below the value “Recool Tsetpoint”. -
Page 33: Special Functions Menu
Special functions menu 7 12. Special functions Menu “7. Special functions” is used to set basic items and expanded func- tions. Other than the time all set- tings may only be made by a specialist. Caution The menu is closed by pressing “esc” or selecting “Exit special functions”. -
Page 34: Factory Settings
Special functions menu 7 12.4 Commissioning menu 7.4 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 35: Start Aid
Special functions menu 7 12.7 Heat quantity (continued) AF type menu 7.7.2 Adjust the type of glycol that has been used in the system. Settings range: Ethylene/Propylene /default setting: Ethylene Glycol portion menu 7.7.3 Adjust the percentage of glycol that has been used in the system. Settings range: 0-60% /default setting: 40% Flow rate menu 7.7.4... - Page 36 Special functions menu 7 12.9 Speed control menu 7.9 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.
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Page 37: Speed Control
Special functions menu 7 12.9 Speed control (continued) 12.9.2 Purging time menu 7.9.2 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. -
Page 38: Menu Lock Menu
Menu lock menu 8 13. Menu lock Menu “8. Menu lock” can be used to secure the controller against uninten- tional 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 39: Service Values Menu
Service values menu 9 15. Service values The menu “9. Service values” can be used for remote diagnosis by a special- ist 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. -
Page 40: Error Messages
Malfunctions 16.1 Malfunctions with error messages If the controller detects a mal-function, the red light fl ashes and the warning symbol also appears in the display. If the error is no longer present, the war- ning symbol changes to an info symbol (LED fl... -
Page 41: Replacing The Fuse
Malfunctions 16.2 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... -
Page 42: Useful Notes
Useful notes/tips and tricks Instead of setting the flow rate for the system using a flow rate limiter, it is better to adjust the flow rate using the switch on the pump and by means of the max. speed setting on the controller “... - Page 43 Useful notes/tips and tricks Programs 14 + 15 Universal ∆T controller are suitable, for example, “ ” for hydraulic variants with solid-fi red boiler, follow-on storage tank char- ging, storage tank transfer, heating circuit return lift, etc. The Operating hours displayed in the Analysis menu are solar ope- “...
- Page 44 Subject as a basic principle to errors and technical changes. Manufacturer: Your specialist dealer: SOREL GmbH Mikroelektronik Jahnstr. 36 D - 45549 Sprockhövel Tel. +49 (0)2339 6024 Fax +49 (0)2339 6025...
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