Navien
Navien Heat Exchanger Inlet Adaptor 30029115A
Heat exchanger inlet adaptor for Navien LCB 700 combi and system boilers.
At a glance
- Part type: heat exchanger inlet adaptor
- Appliance family: LCB 700 combi and system boilers
£104.93
£87.44 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 heat exchanger inlet adaptor is a Navien connection component that fits at the inlet side of the heat exchanger on LCB 700 series boilers. It provides the mechanical and hydraulic link between the heat exchanger inlet and the associated pipework or fitting. It is listed for both combi and system variants of the LCB 700 range.
Signs this part needs replacing
- Visible weeping or water tracking at the heat exchanger inlet connection
- Corrosion, pitting or discolouration on the adaptor body or its threads
- Scale or debris build-up restricting flow at the inlet
- Cracking or deformation of the adaptor, often following frost damage or overheating
- Staining or residue on surrounding components pointing to a slow, long-standing leak
Before you order
- Confirm the boiler model and serial number against the fit list above
- Inspect the existing adaptor and its mating surfaces for thread or seal damage
- Check the part number on the component being removed matches 30029115A
- Confirm whether any sealing washers or gaskets at the joint also need attention
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| NAVIEN LCB 700 COMBI EXTERNAL 21KW (Serial Number 1705) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 21KW (Serial Number 1705) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 28KW (Serial Number 1710) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 28KW (Serial Number 1710) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 36KW (Serial Number 1709) | — | — | — | |
| NAVIEN LCB 700 COMBI EXTERNAL 36KW (Serial Number 1709) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 21KW (Serial Number 1704) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 21KW (Serial Number 1704) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 28KW (Serial Number 1706) | — | — | — | |
| NAVIEN LCB 700 COMBI INTERNAL 28KW (Serial Number 1706) | — | — | — |
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Documents & drawings
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