Ideal
Ideal By-Pass Kit 176481
Ideal 176481 by-pass kit, a valve assembly for Atlantic Combi and Classic 2 boilers and other Ideal models in the range.
At a glance
- Part type: By-pass kit
- Also known as 1781994
£53.80
£44.83 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 Ideal 176481 is a by-pass kit supplied as a valve assembly for Ideal domestic boilers. It sits in the heating circuit and allows a controlled path for water to circulate around the boiler when system flow is restricted, for example when thermostatic radiator valves close down. The kit is listed under Ideal's valves general and assembly spare part group and is used across the Atlantic Combi and Classic 2 families.
Signs this part needs replacing
- Radiators or the boiler reaching temperature unevenly when TRVs shut down
- Audible water noise or whistling from the boiler or pipework during operation
- The pump running on or cycling after the heating demand has ended
- Boiler lockout or flow-related fault codes appearing during normal heating use
- Visible leakage, scale build-up or seized adjustment on the existing by-pass assembly
Before you order
- Check the appliance GC number and model against the compatibility list to confirm the kit suits your boiler.
- Confirm the number on the existing component or its packaging matches 176481 or the alternative number 1781994.
- Allow for any seals, washers or gaskets needed to complete the repair if the existing ones are disturbed.
- Work on the boiler casing and water-carrying components should be carried out by a competent person.
Mechanical
| Part type | Valves General, Assembly |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 176481 |
|---|---|
| Barcode / EAN | 5022141764813 |
| Commodity code | 8481 80 99 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 1781994 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| IDEAL ATLANTIC COMBI 24 | 47-349-81 | 47-349-81 | — | — |
| IDEAL ATLANTIC COMBI 30 | 47-349-82 | 47-349-82 | — | — |
| IDEAL ATLANTIC COMBI 35 | 47-349-83 | 47-349-83 | — | — |
| IDEAL CLASSIC 2 24 | 47-349-71 | 47-349-71 | — | — |
| IDEAL CLASSIC 2 30 | 47-349-72 | 47-349-72 | — | — |
| IDEAL CLASSIC 2 35 | 47-349-73 | 47-349-73 | — | — |
| IDEAL CLASSIC COMBI 24 | 47-349-07 | 47-349-07 | — | — |
| IDEAL CLASSIC COMBI 30 | 47-349-08 | 47-349-08 | — | — |
| IDEAL ESPRIT ECO 2 24 | 47-349-65 | 47-349-65 | — | — |
| IDEAL ESPRIT ECO 2 30 | 47-349-66 | 47-349-66 | — | — |
Showing 10 of 61 compatible appliances.
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.
IDEAL appliance manual — CLASSIC COMBI 24 (GC 47-349-07), CLASSIC COMBI 30 (GC 47-349-08)
manualmanualIDEAL appliance manual — ESPRIT ECO 24 (GC 47-348-91), ESPRIT ECO 30 (GC 47-348-92)
manualmanualIDEAL appliance manual — EXCLUSIVE 24 COMBI (GC 47-349-41), EXCLUSIVE 30 COMBI (GC 47-349-42), EXCLUSIVE 35 COMBI (GC 47-349-43)
manualmanualIDEAL appliance manual — INSTINCT 24 (GC 47-349-09), INSTINCT 30 (GC 47-349-10), INSTINCT 35 (GC 47-349-11)
manualmanualIDEAL appliance manual — PROCOMBI EXCLUSIVE 24 (GC 47-348-79), PROCOMBI EXCLUSIVE 30 (GC 47-348-80), PROCOMBI EXCLUSIVE 35 (GC 47-348-81)
manualmanualIDEAL appliance manual — iCOMBI 24 (GC 47-348-82), iCOMBI 30 (GC 47-348-83), iCOMBI 35 (GC 47-348-84)
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