Vaillant
Vaillant Insulation Kit 0020278361
Vaillant insulation kit, part 0020278361, for Arotherm 5/5 VWL 35/5, 55/5 and 75/5 AS 230V S2 outdoor units.
At a glance
- Also known as 1392884
£22.78
£18.98 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 0020278361 insulation kit is a manufacturer-supplied insulation set for Arotherm 5/5 air-to-water heat pump outdoor units. It is used to insulate pipework and connections on the appliance, reducing heat loss and limiting condensation and frost formation on exposed sections. The kit is supplied by Vaillant as a single part number for the Arotherm 5/5 range.
Signs this part needs replacing
- Insulation is cracked, brittle or crumbling away from the pipework
- Sections of insulation are missing, leaving pipework and connections exposed
- Insulation is saturated, compressed or has lost its shape
- Condensation, ice or frost is forming on pipework that should be insulated
- Visible heat loss or reduced efficiency at the outdoor unit connections
Before you order
- Confirm the appliance model and variant, as the S2 and S2 R1 versions are listed separately
- Check the model plate on the outdoor unit against the fitment list above
- Verify the part number 0020278361 against the manufacturer's parts list for your appliance
- Check whether the existing insulation is damaged in one area or across the whole connection set
Compliance
| Alternative numbers | 1392884 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT aroTHERM 5/5 VWL 35/5 AS 230V S2 (2019-2022) | — | — | — | |
| VAILLANT aroTHERM 5/5 VWL 35/5 AS 230V S2 R1 (2019-2022) | — | — | — | |
| VAILLANT aroTHERM 5/5 VWL 55/5 AS 230V S2 (2019-2022) | — | — | — | |
| VAILLANT aroTHERM 5/5 VWL 55/5 AS 230V S2 R1 (2019-2022) | — | — | — | |
| VAILLANT aroTHERM 5/5 VWL 75/5 AS 230V S2 (2022) | — | — | — | |
| VAILLANT aroTHERM 5/5 VWL 75/5 AS 230V S2 R1 (2022) | — | — | — |
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 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.