TLL331151 - Thermostat Tellur - Free user manual and instructions
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| Product Type | Programmable Thermostat |
| Brand | Tellur |
| Model | TLL331151 |
| Dimensions (approx.) | 80 x 80 x 25 mm |
| Weight (approx.) | 100 g |
| Power Supply | 2 x AA batteries (or 24 VAC) |
| Display Type | LCD with backlight |
| Temperature Range | 5°C to 35°C |
| Accuracy | ±0.5°C |
| Programming | 7-day programmable with up to 4 periods per day |
| Hysteresis | 0.5°C |
| Mounting | Wall mount (plate included) |
| Compatibility | Most heating and cooling systems (gas, electric, heat pump) |
| Special Functions | Frost protection, holiday mode, child lock |
| Maintenance | Clean with a soft, dry cloth |
| Safety | Overheat protection, low battery indicator |
| Spare Parts | Batteries, wall plate (if lost) |
| Manual Languages | English (PDF available) |
Frequently Asked Questions - TLL331151 Tellur
How do I set the temperature on my Tellur TLL331151 thermostat?
Press the '+' or '-' buttons to adjust the desired temperature. The current setpoint will flash. After a few seconds, it will be saved automatically.
Can I program a weekly schedule?
Yes, the TLL331151 supports 7-day programming. Press the 'P' button to enter scheduling mode, then set up to 4 time periods per day with different temperatures.
How do I replace the batteries?
Remove the thermostat from its wall plate by pulling gently. Open the battery compartment on the back, replace the two AA batteries (alkaline recommended), and reattach the unit.
What does the 'frost' icon mean?
The frost protection mode activates when the room temperature drops near freezing (usually below 5°C). The thermostat will turn on heating to prevent pipes from freezing. You can enable or disable this feature in the settings.
My thermostat display is blank. What should I do?
First, check if the batteries are correctly inserted and have enough charge. Replace them if needed. Ensure the wall plate is securely connected. If the problem persists, try a factory reset.
How do I perform a factory reset?
Press and hold the 'Menu' button for 10 seconds until the screen resets. All settings will return to default. Note that your programmed schedule will be erased.
Is the Tellur TLL331151 compatible with my heat pump?
Yes, it is compatible with most heat pump systems, but ensure you select the correct system type (heat pump, gas, electric) in the settings menu.
What does the 'child lock' do?
Child lock disables the buttons to prevent accidental changes. Press and hold the '+' and '-' buttons simultaneously for 3 seconds to activate or deactivate it. A lock icon will appear on the display.
How often should I clean the thermostat?
Clean the exterior with a soft, dry cloth as needed. Avoid using liquids or abrasive cleaners. Ensure the vents are not blocked.
Where can I download the user manual?
The user manual is available for free download on the official Tellur website or on manual platforms like notice-facile.com. Search for model TLL331151 in English.
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USER MANUAL TLL331151 Tellur
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Product information
Brand : Tellur
Model : TLL331151
Category : Thermostat