preventing air ingress & pumping over when moving pump by boiler

[plumb_know]

have moved a pump by new boiler so could wire for pump overrun as no live in airing cupboard, but now I am worried about air ingress into the system as system is under negative pressure.

Anyone got any tricks to help prevent this?? or know how to get pump over to airing cupboard without running cable from boiler to airing cupboard.

On S plans I get round it by using relay timers but no live to do this on this Y plan.

Appreciate your advise

Thanks

 

[ShaunCorbs]

No spare wires going upto the wiring centre?

 

[plumb_know]

No spare wires going upto the wiring centre?

No spare wires unfortunately and customer does not want a sealed heating system.

I have set pump speed to 1 and its seems ok, I just wanted to make some more preventative measures to try and make sure no air ingresses into the system.

We are going to extend vent pipe as high as possible and put invert on feed into system but that's all I know how to help the situation without converting to sealed system or moving pump back to airing cupboard and getting cable their

 

[plumb_know]

No spare wires unfortunately and customer does not want a sealed heating system.

I have set pump speed to 1 and its seems ok, I just wanted to make some more preventative measures to try and make sure no air ingresses into the system.

We are going to extend vent pipe as high as possible and put invert on feed into system but that's all I know how to help the situation without converting to sealed system or moving pump back to airing cupboard and getting cable their

just found this https://plumbbox.co.uk/product/mains-switch-rf-solution-alternative-to-cabling/

any one used these they any good and last??