We are in the process of having a new boiler installed. Neighbours an RGI and is happy to do all of the corgi essential items leaving me to do the rest with help from him as needed.
We had previously replaced the old programmer and cylinder stat with new and included a room stat which the old system didn't have.
All of this worked ok with the old boiler, and I'm sure will be ok with the new boiler but before i connect it up i would like somebody who's familiar with Vaillant system boiler to confirm that what I'm planning to do is ok.
All of the components being used are shown on the wiring diagram below which i hope makes sense to everybody (Well those that understand wiring diagrams that is.. )
I read somewhere that the Red link across boiler terminals 3 and 4 should be removed and new supply cable only connected to terminal 4. But i've also read that the neutral supply for the 3 port valve should come from terminal 5. I'm not sure that this is correct as i would have thought that the 3 port valve N should be connected to the wiring block N terminal.
Could somebody confirm which is the correct way of wiring this up.
Thanks in advance for any help given
We had previously replaced the old programmer and cylinder stat with new and included a room stat which the old system didn't have.
All of this worked ok with the old boiler, and I'm sure will be ok with the new boiler but before i connect it up i would like somebody who's familiar with Vaillant system boiler to confirm that what I'm planning to do is ok.
All of the components being used are shown on the wiring diagram below which i hope makes sense to everybody (Well those that understand wiring diagrams that is.. )
I read somewhere that the Red link across boiler terminals 3 and 4 should be removed and new supply cable only connected to terminal 4. But i've also read that the neutral supply for the 3 port valve should come from terminal 5. I'm not sure that this is correct as i would have thought that the 3 port valve N should be connected to the wiring block N terminal.
Could somebody confirm which is the correct way of wiring this up.
Thanks in advance for any help given