Viessmann
Viessmann Connection Tube For Expansion Vessel 7828647
Viessmann connection tube for the expansion vessel, fitted to Vitodens 100-W WB1B combi and system boilers.
At a glance
- Appliance family: Vitodens 100-W WB1B
- Also known as 2320970
£29.06
£24.22 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
The Viessmann connection tube for the expansion vessel is a pipe component that links the expansion vessel to the boiler's heating circuit. It is manufactured by Viessmann for the Vitodens 100-W WB1B appliance family, where it carries system water between the vessel and the boiler pipework. The part is identified by Viessmann part number 7828647.
Signs this part needs replacing
- Water weeping or a visible drip at the expansion vessel connection
- Scale staining or corrosion along the tube or at its unions
- Repeated loss of system pressure with no other obvious cause
- Damp patches or residue beneath the vessel connection inside the casing
- Air being drawn into the heating circuit around the joint
Before you order
- Read the appliance data badge and confirm the model and serial number against the fit list
- Check the Viessmann part number 7828647 on the existing component or in the boiler documentation
- Confirm the boiler is a Vitodens 100-W WB1B and note whether it is a combi or system variant
- Inspect the vessel connection and surrounding pipework to confirm the tube is the source of the leak
Compliance
| Alternative numbers | 2320970 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VIESSMANN VITODENS 100-W WB1B 26 KW COMBI SERIAL No. 7373061 | 47-819-12 | 47-819-12 | — | — |
| VIESSMANN VITODENS 100-W WB1B 26 KW SYSTEM SERIAL No. 7373060 | — | — | — | |
| VIESSMANN VITODENS 100-W WB1B 30 KW COMBI SERIAL No. 7373063 | 47-819-13 | 47-819-13 | — | — |
| VIESSMANN VITODENS 100-W WB1B 30 KW SYSTEM SERIAL No. 7373062 | — | — | — | |
| VIESSMANN VITODENS 100-W WB1B 35 KW COMBI SERIAL No. 7373065 | 47-819-14 | 47-819-14 | — | — |
| VIESSMANN VITODENS 100-W WB1B 35 KW SYSTEM SERIAL No. 7373064 | 41-819-20 | 41-819-20 | — | — |
Documents & drawings
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