1. Einleitung
This manual provides detailed instructions for the installation, operation, and maintenance of the ELIWELL ST544 and ST544/C NTC Temperature Controllers. These controllers are designed for precise temperature management, particularly in air conditioning applications, and operate on a 12V AC supply.
2. Sicherheitshinweise
Please read this section carefully before installation or operation to ensure safe and proper use of the device.
- Vor jeglichen Installations- oder Wartungsarbeiten die Stromzufuhr unterbrechen.
- Ensure the power supply matches the controller's specifications (12V AC ±10%).
- Sämtliche Verkabelungen müssen den lokalen und nationalen Elektrovorschriften entsprechen.
- Setzen Sie das Gerät keiner übermäßigen Feuchtigkeit oder extremen Temperaturen außerhalb seines Betriebsbereichs aus.
- Installation und Verkabelung dürfen nur von qualifiziertem Fachpersonal durchgeführt werden.
3. Spezifikationen
| Parameter | Wert |
|---|---|
| Modell | ST544 / ST544/C |
| Produktcode | ST54121410300 |
| Anwendung | Klimaanlage |
| Stromversorgung | 12 V Wechselstrom ±10 % |
| Sondentyp | NTC-Sonde |
| Temperaturbereich | -20°C bis 60°C |
| Schutzklasse | IP65 |
| Ausgangsrelais | TC1, DO1, DO2, DO3, DO4 (all 2A 250V~) |
4. Installation und Verkabelung
The controller is designed for panel mounting. Ensure adequate ventilation and avoid locations subject to strong vibrations, corrosive gases, or excessive dust.
4.1 Montage
Mount the controller into a standard panel cutout. Secure it using appropriate mounting hardware.
4.2 Schaltplan
Refer to the diagram below for correct electrical connections. All connections must be made with the power supply disconnected.
- Stromversorgung (12 V Wechselstrom): Connect the 12V AC supply to the terminals marked 'N' and '12V~'.
- NTC-Sonde: Connect the NTC temperature probe to the designated terminals.
- Outputs (DO1, DO2, TC1, DO3, DO4): These are relay outputs, rated at 2A 250V~. Connect your controlled devices (e.g., compressors, fans, heaters) to these terminals as per your application's requirements. 'N' terminals are common for some outputs.
- Andere Verbindungen: Terminals like IDS, ID2, ID1, KEYB, AO3, AO2 are likely for digital inputs, communication, or auxiliary outputs. Refer to the full product datasheet for detailed functionality of these specific terminals if required.
5. Bedienung
The ST544 controller features a digital display and buttons for setting parameters and monitoring temperature. Specific operational details, including parameter codes and navigation, are typically found in the comprehensive programming manual for Eliwell controllers. This section provides general guidance.
5.1 Anzeige
The front display shows the current temperature measured by the NTC probe or various parameter values during programming.
5.2 Tasten
The controller typically includes buttons for:
- Satz: To enter parameter setting mode or confirm a value.
- Pfeiltasten nach oben/unten: To navigate through parameters or adjust values.
- Function/Auxiliary: For specific functions like manual defrost or viewing-Status.
Consult the full programming manual for detailed instructions on setting temperature setpoints, differentials, and other control parameters relevant to your air conditioning application.
6. Wartung
Regelmäßige Wartung gewährleistet optimale Leistung und Langlebigkeit Ihres Controllers.
- Reinigung: Reinigen Sie die Frontplatte regelmäßig mit einem weichen, fusselfreien Tuch.amp Tuch. Keine Scheuer- oder Lösungsmittel verwenden.
- Verbindungen: Überprüfen Sie jährlich alle elektrischen Verbindungen auf festen Sitz und Anzeichen von Korrosion.
- Sonde: Ensure the NTC probe is clean and properly positioned for accurate temperature readings.
- Belüftung: Verify that the controller's ventilation openings are not obstructed.
7. Fehlerbehebung
Dieser Abschnitt behandelt häufig auftretende Probleme. Bei komplexeren Problemen wenden Sie sich bitte an den technischen Support.
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Controller lässt sich nicht einschalten | No power supply; incorrect wiring; blown fuse (internal/external) | Check 12V AC power supply; verify wiring connections; inspect fuses. |
| Ungenaue Temperaturanzeige | Faulty NTC probe; probe incorrectly positioned; wiring issue to probe | Check probe connection; reposition probe; replace probe if damaged. |
| Outputs not switching | Incorrect parameter settings; faulty relay; wiring issue to load | Review setpoint and differential settings; check load wiring; contact support if relay is suspected faulty. |
| Display zeigt Fehlercode | Sensor error; internal fault | Consult the full Eliwell manual for specific error code meanings and solutions. |
8. Benutzertipps
- Always ensure the NTC probe is placed in a location that accurately reflects the temperature you wish to control.
- For critical applications, consider using an external temperature monitor to cross-verify readings.
- Keep a record of your parameter settings for quick reference or if a reset is needed.
9. Garantie und Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact your supplier or ELIWELL customer service. Keep your purchase receipt and product code (ST54121410300) handy when contacting support.
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