Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the LenxTi VE3.2 series automatic control boxes for forced draught gas burners. Please read this manual thoroughly before installation and operation to ensure proper functioning and safety.
The LenxTi VE3.2 burner controllers are designed for automatic control of gas burners, managing the ignition sequence, flame supervision, and safety shutdown in case of malfunction. They are compliant with EN 298:2012 standards.
Product Overview
The LenxTi VE3.2 series includes models 18006005 and 18006015, which are compact and robust control units. Key features include:
- Automatic ignition and flame supervision.
- Integrated safety functions for reliable operation.
- Designed for forced draught gas burners.
- Compliance with European standards for burner control systems.
Setup and Installation
Installation should only be performed by qualified personnel in accordance with local regulations and safety standards. Ensure the main power supply is disconnected before commencing any installation work.
Wiring Diagram
Refer to the following wiring diagram for correct electrical connections. All connections must be secure and properly insulated.
This diagram illustrates the terminal connections:
- L (Live) connects to a fuse (F), then to a switch (I), and then to Valve 1 (EV1).
- N (Neutral) is connected to terminals 2, 3, 4, 5, 6, 7.
- Terminal 4 connects to one side of the Transformer (TR), the other side of TR connects to N.
- Terminal 5 connects to one side of the Motor Blower (MB), the other side of MB connects to N.
- Terminal 6 connects to the Pressure Guard (PG) and TC/TA.
- Terminal 8 is for the flame sensor (indicated by a diode symbol).
- Terminal 9 is for the Ignition Electrode (E.E.).
- Terminal 10 is for the Safety Button (SB).
- Terminal 3 is connected to PA.
Installation Environment
Install the control box in a location protected from excessive heat, moisture, and vibrations. Ensure adequate ventilation around the unit.
Operating Instructions
The LenxTi VE3.2 burner controller operates automatically once correctly installed and powered. It manages the following sequence:
- Pre-purge (TV): The controller initiates a pre-purge cycle for 30 seconds to clear any residual gases from the combustion chamber before ignition.
- Ignition: After pre-purge, the ignition sequence begins, activating the ignition electrode and opening the gas valve.
- Flame Supervision: The flame sensor continuously monitors the presence of a flame. If a flame is not detected within the safety time (TS) of 2 seconds, or if the flame is lost during operation, the controller will initiate a safety shutdown.
- Normal Operation: Once a stable flame is established, the controller maintains burner operation.
- Safety Shutdown: In case of any fault (e.g., flame failure, pressure guard activation), the controller will shut down the burner safely and lock out, requiring a manual reset.
To start the burner, ensure all safety interlocks are satisfied and activate the main burner switch. The controller will then proceed through its automatic sequence.
To stop the burner, deactivate the main burner switch. The controller will safely shut down the system.
Maintenance
Regular maintenance ensures the longevity and safe operation of your burner control system. Always disconnect power before performing any maintenance.
- Visual Inspection: Periodically inspect the control box and its connections for any signs of damage, corrosion, or loose wiring.
- Cleaning: Keep the control box clean and free from dust and debris. Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents.
- Connection Checks: Ensure all electrical connections remain tight and secure.
- System Checks: Regularly check the entire burner system, including flame sensors, ignition electrodes, and gas valves, as per the burner manufacturer's recommendations.
For any internal maintenance or repairs, contact a qualified service technician.
Troubleshooting
If the burner system fails to operate correctly, consider the following basic troubleshooting steps. For complex issues, consult a qualified technician.
- No Power:
- Check the main power supply to the control box.
- Verify that the fuse (F) in the wiring circuit is intact.
- Ensure the main switch (I) is in the ON position.
- Burner Fails to Ignite:
- Check the gas supply.
- Ensure the ignition electrode (E.E.) is clean and correctly positioned.
- Verify the flame sensor is clean and functioning.
- Check if the pressure guard (PG) is activated.
- Burner Shuts Down Unexpectedly:
- This indicates a safety lockout. Check for flame failure, gas supply issues, or activation of safety devices like the pressure guard.
- After resolving the issue, a manual reset of the controller may be required (e.g., by pressing the safety button SB or cycling power).
- Unusual Noises or Smells:
- Immediately shut down the burner system and investigate the cause. Do not operate if you detect gas leaks or unusual sounds.
Always prioritize safety. If you are unsure about any troubleshooting step, contact a professional.
Specifications
| Feature | LenxTi VE3.2 18006005 | LenxTi VE3.2 18006015 |
|---|---|---|
| Model Number | 18006005 | 18006015 |
| Type | VE3.2 | |
| Voltage | 220 V | |
| Frequency | 50 Hz | 60 Hz |
| Power Consumption | 6.5 VA | 8.5 VA |
| Pre-purge Time (TV) | 30 seconds | |
| Safety Time (TS) | 2 seconds | |
| Compliance | EN 298:2012 | |
| Origin | Mainland China | |
| Customization | Yes | |
User Tips
Based on feedback from long-term users, LenxTi controllers are known for their durability and reliable performance over many years. To maximize the lifespan and ensure consistent operation:
- Professional Installation: Always ensure installation is carried out by a certified technician to prevent errors and ensure compliance with safety standards.
- Regular System Checks: Beyond the controller itself, ensure all components of your burner system (gas lines, valves, sensors) are regularly inspected and maintained.
- Environmental Protection: Protect the control box from harsh environmental conditions like extreme temperatures, direct water exposure, and corrosive atmospheres.
Warranty and Support
LenxTi provides a 1-year warranty for this product, based on equipment calculations from the date of receipt. This warranty covers manufacturing defects and malfunctions not caused by human error.
During the warranty period, if any problems arise that are covered by the warranty, spare parts will be provided free of charge. LenxTi is committed to supporting its customers when needed.
For warranty claims, technical support, or any questions regarding your LenxTi burner controller, please contact the LenxTi Official Store or your authorized dealer.
