Navien
Navien Mixing Valve Adaptor (Left) 20044482B
Left-hand mixing valve adaptor for Navien LCB 700 Combi boilers, linking the mixing valve to the appliance pipework.
At a glance
- Part type: adaptor for the mixing valve, left-hand side
- Appliance family: LCB 700 Combi
£15.23
£12.69 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 left-hand mixing valve adaptor is a Navien connection component used on LCB 700 Combi boilers. It forms the left-hand interface between the mixing valve and the boiler pipework, allowing the valve to be joined to the appliance's water circuit. It is a serviceable part intended for fitment on the LCB 700 Combi range.
Signs this part needs replacing
- Weeping or visible water traces at the adaptor joint
- Corrosion, scale or mineral build-up around the connection
- Damaged or crossed threads, or a scored sealing face
- Unstable or poorly controlled domestic hot water temperature traced to the mixing valve assembly
- Cracking or distortion of the adaptor body
Before you order
- Confirm your boiler is an LCB 700 Combi and note whether it is the internal or external variant
- Check the appliance serial number against the model listing to confirm compatibility
- Confirm the part required is the left-hand adaptor, not the right-hand equivalent
- Inspect the existing mixing valve and pipework connections before ordering
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) | — | — | — |
Showing 10 of 12 compatible appliances.
Documents & drawings
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