FTR231U - Thermostat JUNG - Free user manual and instructions
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| Product Type | Thermostat |
| Brand | JUNG |
| Model | FTR231U |
| Dimensions (H x W x D) | Approx. 80 x 80 x 30 mm |
| Weight | Approx. 150 g |
| Power Supply | Battery (2 x AA) or 24 V AC/DC |
| Display Type | Digital LCD |
| Control Type | Push button / rotary dial |
| Temperature Range | 5 °C to 35 °C |
| Accuracy | ±0.5 °C |
| Programmable | Yes, weekly schedule |
| Functions | Temperature control, frost protection, holiday mode |
| Mounting | Wall mount (flush or surface) |
| Maintenance & Cleaning | Wipe with a soft, dry cloth. Do not use abrasive cleaners. |
| Safety | No user-serviceable parts inside. Disconnect power before cleaning. |
| Spare Parts & Repairability | Batteries and mounting frame are replaceable. Contact JUNG for service. |
| Manual Availability | Free PDF download from notice-facile.com |
| Languages | English, plus translations available |
Frequently Asked Questions - FTR231U JUNG
How do I install the JUNG FTR231U thermostat?
Turn off power at the fuse box. Remove the old thermostat, connect the wires to the terminals (L, N, etc.) as per the wiring diagram, and mount the thermostat to the wall. Insert batteries if applicable.
What type of batteries does the FTR231U use?
It uses 2 x AA alkaline batteries (not included). The battery compartment is located on the back.
How can I set the weekly schedule?
Press the Menu button, navigate to 'Schedule' using the arrow keys, and set the desired temperature and time for each day. Confirm with OK.
Why is my thermostat not turning on?
Check that the batteries are inserted correctly and have sufficient charge. If using mains power, verify that the circuit breaker is on and the wiring is secure.
How do I reset the thermostat to factory settings?
Press and hold the Menu and Down buttons simultaneously for 5 seconds until the display resets. All personal settings will be lost.
Can the FTR231U be used with a heat pump?
Yes, it is compatible with most heat pump systems. Select 'Heat Pump' in the system settings menu.
What does the frost protection symbol mean?
The snowflake symbol indicates frost protection mode. The thermostat will maintain a minimum temperature (typically 5 °C) to prevent freezing.
How accurate is the temperature reading?
The built-in sensor has an accuracy of ±0.5 °C under normal conditions.
Can I control the thermostat remotely?
No, the FTR231U is a manual/programmable thermostat without Wi-Fi or remote control capabilities.
Where can I download the user manual?
You can download the free PDF manual from notice-facile.com by searching for JUNG FTR231U.
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