The NIBE Expansion Valve (Part No. 624931), also known as TLEX-E0607, is a genuine thermostatic expansion valve designed for use with R407C refrigerant systems. It is specifically compatible with a range of NIBE ground source heat pump models.

🔧 Product Overview

• Nibe Part Number: 624931

• Model: TLEX-E0607

• 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 various NIBE heat pump models, ensuring stable operation and energy efficiency.

✅ Compatibility

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

• NIBE F1110 13 kW

• NIBE F1115 15 kW

• NIBE F1125 15 kW & 17 kW

• NIBE F1130 17 kW

• NIBE F1135 15 kW & 17 kW

• NIBE F1145 15 kW & 17 kW

• NIBE F1310 25 kW & 30 kW

• NIBE F1320 25 kW, 30 kW & 40 kW

• NIBE F1330 30 kW & 40 kW

• NIBE F1345 30 kW & 40 kW

These models are part of NIBE's ground source heat pump range, designed for larger residential or commercial applications.

⚠️ 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

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