
Ideal
Ideal Fill Loop Kit HIU Indirect 177770
Ideal 177770 indirect fill loop kit for Ideal Commercial HIU appliances, with alternative part number 1783153.
At a glance
- Part type: Fill loop kit, indirect
- Appliance family: Ideal Commercial HIU
- Also known as 1783153
£96.01
£80.01 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 177770 is an indirect fill loop kit for heating interface units (HIUs). It is produced within the Ideal Caradon range and provides the temporary filling connection used to pressurise and top up the sealed heating circuit on the appliance. The loop links the mains cold water supply to the heating side of the HIU so system pressure can be raised during commissioning, servicing or routine maintenance.
Signs this part needs replacing
- System pressure will not hold and the appliance needs frequent topping up
- Water weeping or dripping from the filling loop connection
- The filling valve does not shut off fully once the circuit is pressurised
- Scale, corrosion or perished seals visible around the loop assembly
- Pressure gauge continues to rise when the loop should be isolated
Before you order
- Confirm the appliance model and serial number against the compatibility list
- Compare the existing component with part number 177770 and alternative number 1783153
- Inspect the connection seals and washers and renew them if worn
Mechanical
| Part type | Fill loop kit, indirect |
|---|---|
| Appliance family | Ideal Commercial HIU |
Compliance
| Manufacturer part number (MPN) | 177770 |
|---|---|
| Commodity code | 8481 80 99 00 |
| GPC classification | Connecting Hoses - Water, Gas, Central Heating |
| Alternative numbers | 1783153 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| IDEAL COMMERCIAL IDEAL COMMERCIAL PARTS | — | — | — |
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 documents held for this part. The technical team will source them 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.
