System malfunction due to undersized pipe installation

What does Undersized System mean?

An incorrectly dimensioned pipe system, particularly if pipe diameters are too small or the system cannot maintain the minimum recommended flow rates (especially for defrosting), can cause damage to the product and lead to operational malfunctions.

• Incorrect or undersized pipe diameters
• Insufficient system flow rates
• Failure to meet minimum defrosting flow requirements

Click steps to track your progress.

1. 1

   Consult the specific manual for your compatible NIBE air/water Heat Pump to check recommended pipe dimensions.

2. 2

   Verify that the installed pipe diameters meet or exceed the minimum recommended sizes (e.g., DN20, DN25, DN32) for your Heat Pump model.

3. 3

   Confirm that the system is designed to handle the minimum required flow during defrosting at 100% pump operation.

4. 4

   If there are concerns about undersizing, contact a professional heating engineer or NIBE installer for a thorough system assessment.