Jung AUT238DWW Programmable Thermostat LCD Display Cover User Manual

1. Rhagymadrodd

The Jung AUT238DWW is an LCD display cover designed for the Jung UT 238 E programmable thermostat mechanism. This unit provides a user interface for precise control over your heating system, featuring a clear display and intuitive buttons for programming and adjustments. It integrates a weekly timer to manage heating schedules efficiently, ensuring comfort and energy savings.

Mae nodweddion allweddol yn cynnwys:

• Three adjustable temperature settings: Comfort, Setback (night/economy), and Frost Protection.
• Automatic summer/winter time switching.
• Temperature detection via internal and/or external sensor.
• Additional energy-saving button for reduced temperature mode.
• "Party" mode to extend comfort temperature for selected periods.
• Power reserve for settings retention during power outages.
• Cooling function for passive cooling systems.

2. Cyfarwyddiadau Diogelwch

Please read these instructions carefully before installation and operation. Keep this manual for future reference.

• Installation should only be performed by a qualified electrician in accordance with local regulations.
• Gwnewch yn siŵr bod y cyflenwad pŵer wedi'i ddatgysylltu cyn unrhyw waith gosod neu gynnal a chadw.
• Peidiwch ag amlygu'r ddyfais i leithder, tymereddau eithafol, na golau haul uniongyrchol.
• Peidiwch ag agor na cheisio atgyweirio'r ddyfais eich hun. Cyfeiriwch yr holl waith cynnal a chadw at bersonél cymwys.

3. Cydrannau Cynnyrch a Throsoddview

The Jung AUT238DWW display cover consists of an LCD screen and several control buttons. Refer to the image below for a visual guide to the main components.

Rheolyddion Allweddol:

• Arddangosfa LCD: Shows current temperature, time, day of the week, and active mode icons.
• Botymau '+' a '-': Used to adjust values such as time or temperature.
• Botwm SET: Confirms set values. If not pressed within 1 minute after adjustment, the display returns to normal mode without saving changes.
• Botwm PROG: Allows access to programming functions and returns to the normal time program.
• Star/Snowflake Button: (Left button) Likely for quick access to Comfort or Frost Protection modes.
• Moon Button: (Right button) Likely for quick access to Setback (night) mode.

4. Gosod a Gosod Cychwynnol

This AUT238DWW unit is a display cover designed to be mounted onto the Jung UT 238 E programmable thermostat mechanism. Ensure the UT 238 E mechanism is correctly installed and wired according to its specific instructions before attaching this display cover.

4.1 Attaching the Display Cover

1. Ensure the power supply to the thermostat mechanism is completely disconnected at the main circuit breaker.
2. Carefully align the AUT238DWW display cover with the UT 238 E thermostat mechanism.
3. Gently press the cover into place until it clicks securely. Do not force it.
4. Restore power to the thermostat mechanism. The display should illuminate.

4.2 Gosod Amser a Dyddiad Cychwynnol

Upon first power-up or after a prolonged power outage (beyond the power reserve), you may need to set the current time and date. Refer to the "Operating Instructions" section for detailed steps on using the +, -, a GOSOD buttons to adjust these values.

5. Cyfarwyddiadau Gweithredu

5.1 Gweithrediad Sylfaenol

To adjust values such as time or temperature, use the + or - buttons. Confirm your settings by pressing the GOSOD botwm. Os bydd y GOSOD button is not pressed within 1 minute after the last button press, the display will automatically revert to the normal display mode, and any unsaved changes will be lost.

Wrth wasgu'r PROG button allows you to navigate through programming menus or return to the normal time program.

5.2 Understanding Thermostat Modes

The thermostat operates by controlling the heating system based on three adjustable temperature settings at specific times:

• Tymheredd Cysur: Typically used during the day or periods of presence.
• Setback Temperature (Economy/Night): Usually applied during the night or periods of absence to save energy.
• Tymheredd Amddiffyn Rhew: Used during extended periods of absence (e.g., holidays) to prevent the heating system from freezing. This temperature is set just high enough to protect the system.

5.3 Weekly Timer Programming

The integrated weekly timer allows for time-controlled temperature management for a single room or floor heating. You can set up to 32 individual switching times throughout the week. For each switching time, you define the start time, end time, and the desired temperature mode (Comfort, Setback, or Frost Protection).

1. Gwasgwch y PROG button to enter the programming menu.
2. Defnyddiwch y + or - buttons to navigate through the program slots (e.g., P1, P2, etc.).
3. Gwasgwch GOSOD to select a program slot.
4. Defnydd + or - to set the start time, then press GOSOD.
5. Defnydd + or - to set the end time, then press GOSOD.
6. Defnydd + or - to select the desired temperature mode (Comfort, Setback, Frost Protection) for this period, then press GOSOD.
7. Repeat for all desired switching times. Press PROG to exit the programming menu.

The system includes heating optimization, which means it will activate heating in advance to ensure the desired temperature is reached precisely at the programmed time.

5.4 Swyddogaethau Arbennig

• Botwm Arbed Ynni: An additional button allows for quick switching to the reduced (setback) temperature.
• "Party" Mode: Activates the comfort temperature for a selectable period of 1 to 4 hours, overriding the current program. This is useful for temporary extensions of comfort.
• Swyddogaeth Oeri: The thermostat supports a simple cooling function for passive cooling systems (e.g., via geothermal exchangers). Refer to the UT 238 E mechanism manual for activation details.

6. Cynnal a Chadw a Gofal

The Jung AUT238DWW display cover requires minimal maintenance.

• Glanhau: Wipe the display and buttons with a soft, dry, or slightly damp lliain. Peidiwch â defnyddio glanhawyr sgraffiniol, toddyddion na chwistrellau cemegol, gan y gall y rhain niweidio'r wyneb.
• Battery (Power Reserve): The device features a power reserve (capacitor, not a battery) that retains settings for up to 4 hours during power interruptions and programming for up to 10 years. No user maintenance is required for this feature.

7. Datrys Problemau

If you encounter issues with your Jung AUT238DWW display cover or the connected thermostat mechanism, consider the following:

• Mae'r arddangosfa'n wag: Check the power supply to the thermostat mechanism. Ensure it is correctly installed and receiving power.
• Settings not saving: Ensure you press the GOSOD button to confirm changes after adjusting values. If you wait too long (over 1 minute), changes will not be saved.
• Darlleniadau tymheredd anghywir: Verify that the temperature sensor (internal or external, depending on configuration) is not obstructed and is functioning correctly.
• Heating not responding: Check the programming schedule to ensure the thermostat is set to a heating mode and desired temperature. Verify the UT 238 E mechanism is correctly wired to your heating system.

For persistent issues, consult the full manual for the Jung UT 238 E thermostat mechanism or contact Jung customer support.

8. Manylebau Technegol

9. Gwarant a Chefnogaeth

9.1 Gwybodaeth Gwarant

Specific warranty details for the Jung AUT238DWW are typically provided with the product packaging or can be found on the official Jung websafle. Cadwch eich prawf prynu ar gyfer hawliadau gwarant.

9.2 Cefnogaeth i Gwsmeriaid

For technical assistance, troubleshooting, or further information regarding your Jung AUT238DWW display cover or the UT 238 E thermostat mechanism, please contact Jung customer support through their official websafle neu'r manylion cyswllt a ddarperir yn nogfennaeth eich cynnyrch.

Fel arfer gallwch ddod o hyd i wybodaeth gymorth ar y Jung official websafle.