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Viessmann Heating Return Connection 7823855

Viessmann

Viessmann Heating Return Connection 7823855

Viessmann heating return connection for Vitodens 100 and WB1A boilers, part number 7823855.

At a glance

  • Also known as 2320106
Manufacturer part no.
7823855
Showing prices

£147.36

£122.80 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The heating return connection is a Viessmann hydraulic component fitted to Vitodens 100 and Vitodens WB1A boiler models from 14.01.2005. It forms the return-side connection point within the boiler's heating circuit pipework. Viessmann part number 7823855.

Signs this part needs replacing

  • Visible corrosion, scaling or pitting on the connection body or seating face
  • Weeping or dripping at the return connection joint under normal operating pressure
  • Leaks that persist after the joint has been remade and correctly sealed
  • Difficulty achieving a sound, leak-free seal when refitting the return pipework
  • Physical damage or deformation to the connection, such as a cracked or distorted body

Before you order

  • Confirm the boiler model and serial number against the fitment list, as this connection is serial-number specific
  • Check the appliance was manufactured or installed from 14.01.2005 onwards
  • Verify the existing connection's condition and identify whether any associated seals or washers also need attention
  • Confirm Viessmann part number 7823855 matches the component being removed

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.