1. Introducció
This manual provides instructions for the installation, operation, and maintenance of the Carrier Display Line Controller, model KJR-120X/TFBG-E. This wired remote controller is designed for commercial air conditioning systems, functioning as a damper control unit. Please read this manual thoroughly before use and retain it for future reference.
2. Producte acabatview
The KJR-120X/TFBG-E is a sophisticated wired remote controller for Carrier air conditioning systems. It features a clear display and intuitive buttons for managing various functions of your HVAC unit.
2.1 Controller Front View

2.2 Controller Rear View

2.3 Included Documentation

3. Configuració i instal·lació
Installation of this wired remote controller should ideally be performed by a qualified technician due to its integration with commercial HVAC systems. Refer to the dedicated "Wired Remote Controller Installation Manual" (Figure 3) for detailed wiring diagrams and mounting instructions.
3.1 Muntatge
The controller is designed for wall mounting. Ensure the chosen location is easily accessible and free from direct sunlight or heat sources that could affect temperature readings. The rear of the unit (Figure 2) shows the mounting points.
3.2 Cablejat
Connect the controller to the air conditioning unit using the appropriate communication cables as specified in the installation manual. Pay close attention to polarity and terminal designations to prevent damage to the controller or the HVAC system. The model number 17317100A28269 KJR-120X/TFBG-E is visible on the rear label, which may be referenced in wiring diagrams.
3.3 Engegada inicial
Once securely mounted and wired, apply power to the HVAC system. The controller display should illuminate, indicating successful power-up. Follow any on-screen prompts for initial setup or configuration.
4. Instruccions de funcionament
The controller features a user-friendly interface with a display screen and several buttons for various functions. Refer to Figure 1 for button identification.
4.1 Funcions dels botons
- Botó d'encendre (⏻): Encén o apaga la unitat d'aire condicionat.
- Fletxes amunt/avall (∧ / ∨): Adjusts temperature settings, timer values, or navigates menu options.
- Mode/Fan Button (⁂): Cycles through operating modes (e.g., Cool, Heat, Fan, Dry) or fan speeds.
- Checkmark Button (✓): Confirms selections or enters menu options.
- Return/Undo Button (↩): Returns to the previous screen or cancels an action.
- Botó de bloqueig (🔒): Locks or unlocks the keypad to prevent accidental changes. A small lock icon on the display indicates the lock status.
- "DAY OFF" Button: Likely used for scheduling or setting specific days off for operation.
- "TIMER" Button: Accesses timer settings for scheduled ON/OFF operations.
- "COPY" Button: May be used to copy settings from one unit or period to another.
- "FUNC." Button: Accesses additional functions or advanced settings.
4.2 Funcionament bàsic
- Encesa/apagada: Premeu el botó d'engegada.
- Configuració de la temperatura: Use the Up/Down arrows to adjust the desired temperature.
- Canvi de mode: Press the Mode/Fan button to cycle through available operating modes.
- Configuració del temporitzador: Press the TIMER button and use the Up/Down arrows and Checkmark button to configure scheduled operations.
5. Manteniment
Regular maintenance ensures optimal performance and longevity of your controller.
- Neteja: Wipe the display and buttons with a soft, dry cloth. For stubborn marks, use a slightly damp cloth with mild detergent, then dry thoroughly. Do not use abrasive cleaners or solvents.
- Inspecció: Periodically check the wiring connections at the rear of the unit for any signs of looseness or damage. Ensure the controller is securely mounted.
- Actualitzacions de programari: If applicable, consult your HVAC service provider for information on potential firmware updates for the controller.
6. Solució De Problemes
If you encounter issues with your controller, try the following basic troubleshooting steps:
| Problema | Causa possible | Solució |
|---|---|---|
| La pantalla del controlador està en blanc. | Sense subministrament elèctric; cablejat fluix. | Check power to the HVAC system. Verify wiring connections are secure. |
| Els botons no responen. | Keypad locked; internal error. | Check for a lock icon on the display and press the Lock button to unlock. If still unresponsive, power cycle the HVAC system. |
| Lectures de temperatura incorrectes. | Controlador exposat a calor/fred directe; mal funcionament del sensor. | Ensure the controller is not in direct sunlight or near heat sources. If the problem persists, contact a technician. |
| HVAC unit not responding to commands. | Communication error; HVAC unit issue. | Verify wiring connections. Check the HVAC unit's status. Consult the HVAC unit's manual or a technician. |
If these steps do not resolve the issue, contact a qualified HVAC technician for further assistance.
7. Especificacions
| Característica | Detall |
|---|---|
| Número de model | KJR-120X/TFBG-E (also identified as 17317100A28269) |
| Tipus | Wired Remote Controller / Damper control |
| Aplicació | Commercial Air Conditioning Systems |
| Certificació | CE |
| Origen | Xina continental |
| Package Length (approx.) | 18 cm |
| Package Width (approx.) | 18 cm |
| Package Height (approx.) | 8 cm |
| Pes del paquet (aprox.) | 1.0 kg |
8. Consells d'usuari
- For optimal performance, ensure the controller is installed in a location that accurately reflects the room temperature, away from drafts or direct heat sources.
- Familiarize yourself with the "FUNC." button, as it often provides access to advanced settings that can customize your HVAC experience.
- If the display seems dim or unresponsive, a quick power cycle of the entire HVAC system (if safe to do so) can sometimes resolve minor glitches.
9. Garantia i Suport
For warranty information, please refer to the documentation provided at the time of purchase or contact your authorized Carrier dealer or the seller directly. For technical support or service, it is recommended to contact a certified HVAC technician or the manufacturer's customer service.
Fabricant: Carrier
Model: KJR-120X/TFBG-E
Número de peça: 17317100A28269





