Viessmann
Viessmann Circuit Board 230V Power Supply DNU 7823981
Viessmann 7823981 circuit board with 230V power supply, marked DNU.
At a glance
- Also known as 2321640
£260.30
£216.92 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
This is a Viessmann 7823981 circuit board, configured as a 230V power supply board. It is marked DNU. The part number is 7823981.
Before you order
- Verify the part number 7823981 matches the board being replaced.
- Confirm that a 230V power supply board is correct for the installation.
- Check the DNU marking and whether it affects suitability for your application.
Compliance
| Alternative numbers | 2321640 |
|---|
No fitment data held for this part.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.