1. Introduction
The Uponor H/K 1000311 TR 2/3 Room Thermostat is designed to precisely maintain a pre-selected ambient temperature within a room. Its functionality also includes preventing condensation when operating in cooling mode. This thermostat allows for remote temperature adjustment through a standard 0-10V signal. Users can configure the thermostat for two distinct operating modes using an internal DIP switch, adapting it to different system requirements.
- TR 3 Mode: Configures the system for three-conductor operation, providing separate outputs for heating and cooling functions.
- TR 2 Mode: Configures the system for two-conductor operation, utilizing a combined output for both heating and cooling functions.
2. Safety Information
Please read and understand all safety instructions before installing or operating the Uponor H/K 1000311 TR 2/3 Room Thermostat. Failure to follow these instructions may result in electric shock, fire, or property damage.
- Electrical Safety: Installation and wiring must be performed by a qualified electrician in accordance with all local and national electrical codes. Ensure the power supply to the thermostat and connected systems is disconnected before any installation, wiring, or maintenance work.
- Voltage: This device operates on 24V. Connecting it to a higher voltage supply will damage the unit and may pose a safety hazard.
- Environment: Do not expose the thermostat to water, excessive humidity, or extreme temperatures outside its specified operating range.
- Intended Use: Use this thermostat only for its intended purpose of controlling heating and cooling systems as described in this manual.
3. Product Overview
The Uponor H/K 1000311 TR 2/3 is a compact, flush-mounted room thermostat designed for precise temperature control in 24V heating and cooling applications. It features a TRIAC switching output for reliable operation and an IP40 protection rating, making it suitable for indoor environments.
Figure 1: Internal circuit board of the Uponor H/K 1000311 Room Thermostat. This image provides a view of the internal electronic components and the DIP switch for mode selection.
4. Setup and Installation
The Uponor H/K 1000311 TR 2/3 Room Thermostat is designed for flush-mounted installation. Ensure all power is disconnected before proceeding with wiring.
4.1 Wiring Connections
Refer to the wiring diagram below for correct electrical connections. The thermostat requires a 24V power supply. It provides separate outputs for heating (HV) and cooling (KV) in TR 3 mode, or a combined output in TR 2 mode. The 0-10V input is used for remote temperature control.
Figure 2: Wiring terminals and electrical diagram for the Uponor H/K 1000311 Room Thermostat. This diagram illustrates connections for 24V power, heating output (HV), cooling output (KV), and the 0-10V remote control signal (Fernvers.). Note the 1A fuse protection for HV and KV outputs.
- 24V~ 25VA: Power supply input (24 Volts AC).
- HV (1A): Heating Valve output (max 1 Ampere).
- KV (1A): Cooling Valve output (max 1 Ampere).
- + Fernvers. 0...10V=: Remote temperature setting input (0-10 Volts DC).
4.2 DIP Switch Configuration
The internal DIP switch allows selection between TR 2 and TR 3 operating modes. Consult the product documentation or the internal markings on the device for the specific DIP switch settings corresponding to each mode. Ensure the correct mode is selected based on your system's wiring and requirements.
5. Operating Instructions
The Uponor H/K 1000311 TR 2/3 Room Thermostat controls the room temperature based on a 0-10V remote signal. There are no direct user controls on the thermostat itself for temperature adjustment.
- Temperature Setting: The desired temperature is set remotely via a 0-10V signal connected to the "Fernvers." terminals. A 0V signal typically corresponds to the minimum temperature setting (+5°C), while a 10V signal corresponds to the maximum temperature setting (+30°C).
- Mode Selection: The operating mode (TR 2 or TR 3) is pre-configured during installation using the internal DIP switch. This determines whether the thermostat provides separate or combined heating/cooling outputs.
- Condensation Prevention: In cooling mode, the thermostat actively works to prevent condensation by monitoring and adjusting its operation.
6. Maintenance
The Uponor H/K 1000311 TR 2/3 Room Thermostat is designed for minimal maintenance. To ensure optimal performance and longevity:
- Cleaning: Periodically wipe the exterior of the thermostat with a soft, dry cloth. Do not use abrasive cleaners, solvents, or spray liquids directly onto the device.
- Dust Accumulation: Ensure the device is kept free from excessive dust accumulation, which can affect its performance.
- Inspections: Regularly inspect the wiring connections for any signs of wear or damage. If any issues are found, disconnect power and consult a qualified technician.
7. Troubleshooting
If you experience issues with your Uponor H/K 1000311 TR 2/3 Room Thermostat, consider the following common troubleshooting steps:
- No Power/No Response:
- Check the 24V power supply connection to the thermostat.
- Verify that the circuit breaker or fuse for the thermostat's power supply is not tripped or blown.
- Incorrect Temperature Control:
- Ensure the 0-10V remote control signal is correctly connected and providing the expected voltage.
- Check the internal DIP switch settings to confirm the correct TR 2 or TR 3 mode is selected for your system.
- Verify that the heating/cooling system connected to the thermostat is functioning correctly.
- System Not Heating/Cooling:
- Confirm that the HV (heating) and KV (cooling) outputs are correctly wired to your system's actuators or relays.
- Check the 1A fuse protection for the HV and KV outputs as indicated in the wiring diagram.
- Ensure the remote temperature signal is calling for heating or cooling as appropriate.
If problems persist after performing these checks, it is recommended to contact a qualified HVAC technician or Uponor customer support for further assistance.
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | 1000311 TR 2/3 |
| Brand | Uponor |
| Temperature Range | +5 ... +30 °C |
| Switching Output | TRIAC |
| Voltage | 24 V |
| Protection Rating | IP40 |
| Weight | 110 Grams |
| Control Type | Remote (0-10V signal) |
| Special Feature | Flush-mounted model |
| Product Specific Uses | Underfloor heating, Air conditioning |
| Temperature Control Type | Heating and cooling |
| Included Components | Room Thermostat |
| Power Source | Electric cable |
| Display Type | Analog |
| Backlight | No |
9. Warranty and Support
For information regarding warranty coverage, technical support, or service for your Uponor H/K 1000311 TR 2/3 Room Thermostat, please refer to the official Uponor website or contact your local Uponor distributor. Keep your purchase receipt as proof of purchase for any warranty claims.
Manufacturer: Uponor
Contact Information: Please visit the official Uponor website for the most up-to-date contact details and support resources.
