Vaillant
Vaillant Collector 11-15kW 0020175857
Vaillant collector (0020175857) rated for 11-15kW, used on VWL 115/2 and VWL 155/2 A 230V Arotherm heat pumps.
At a glance
- Part type: collector
- Also known as 1386352
£579.44
£482.87 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 Vaillant 0020175857 is a collector rated for 11-15kW output, used in the hydraulic circuit of Vaillant Arotherm air-to-water heat pumps. It distributes and balances flow between the heating circuits connected to the appliance. It is listed for the VWL 115/2 and VWL 155/2 A 230V models.
Signs this part needs replacing
- Heating circuits running noticeably cooler than the set flow temperature
- Uneven heat output between zones or circuits fed from the collector
- Visible weeping, staining or corrosion at the collector body or its connections
- Flow noise or vibration from the collector area during operation
- System pressure dropping repeatedly with no other obvious source of loss
Before you order
- Confirm the appliance model number on the data badge matches one of the fit lines above
- Check the kW rating of the existing collector against the 11-15kW rating of this part
- Read the existing part number from the old collector where it is still legible
- Isolate and drain the relevant circuit before removal and refitting
Compliance
| Alternative numbers | 1386352 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VWL 115/2 A 230V | — | — | — | |
| VAILLANT VWL 155/2 A 230V | — | — | — | |
| VAILLANT aroTHERM VWL 115/2 A 230V (2013) | — | — | — | |
| VAILLANT aroTHERM VWL 155/2 A 230V (2014) | — | — | — |
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.
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