The NIBE Expansion Valve (Part No. 624414), also known as TLEX-E0829, is a genuine thermostatic expansion valve designed for use with R407C refrigerant systems. It is specifically compatible with the NIBE F2015 11 kW air-to-water heat pump model.

🔧 Product Overview

• Nibe Part Number: 624414

• Model: TLEX-E0829

• Refrigerant: R407C

• Valve Type: Thermostatic Expansion Valve (TXV)

• Function: Regulates the flow of refrigerant into the evaporator, ensuring optimal system performance and efficiency.

This valve is engineered to manage the refrigerant flow rates required by the NIBE F2015 11 kW heat pump, ensuring stable operation and energy efficiency.

✅ Compatibility

This expansion valve is compatible with the following NIBE heat pump model:

• NIBE F2015 11 kW

For other models or capacities, it's essential to verify compatibility before installation.

⚠️ Common Faults Associated with Expansion Valve Issues

Malfunctions or failures of the expansion valve can lead to several operational issues, often indicated by system alarms:

• Low-Pressure (LP) Alarms: May result from the valve failing to regulate refrigerant flow correctly, causing inadequate system pressure.

• Fan Alarms: An improperly functioning expansion valve can cause abnormal system pressures and temperatures leading to fan alarms.

Regular maintenance and timely replacement of the expansion valve are crucial to prevent these issues and ensure optimal heat pump performance