Discuss Vaillant ecotec 418 wiring in the Plumbing Jobs | The Job-board area at PlumbersForums.net

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JCSPLUMBING

Hi lads. Having some issues with the wiring of the above boiler. I've run a new live neutral earth to the boiler from the fused spur via the wiring centre. I always thought the pump was switched with the orange on the 3 port. Now the pump live is seperate do I run the pump direct to boilers pump ports ? Also it says in manual the switched live goes into 4. I'm getting quite confused with it. I must admit we haven't wired a heat only boiler for years as we have a spark that does this for us. The old boiler was switched live with no pump overrun
 
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You need live from the pump to the boiler as well as permanent live. Switch lives goes to 4 in boiler
 
Done the pump live to boiler got it going now going to tackle wiring centre for switched live
 
Wire the pump to the boiler as that will control pump over run
 
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