Wiring condensate pump to green star compact 32i boiler

Rockomuir · Sep 8, 2024

Afternoon ,
I have been asked to wire in a Plumbright PR 20 sta condensate pump. The pump has a live neutral and earth and a separate float cable with two wires attached. I am a little unsure with wiring as have no diagrams etc.

I am assuming in a green star I can use the LNE supply terminals on the boilers pcb but where do I connect float wires. Do I connect then to the perm live and the other to the boiler switched live .
If I am totally wrong apologies
Thanks

James · Sep 8, 2024

Probably not, I expect the float switch is to turn the pump on and off.
You really need to get hold of some instructions instead of guessing.

Avo Mk8 · Sep 8, 2024

sorry mistake!

Avo Mk8 · Sep 8, 2024

I found instructions for a slightly different model below.
They said
1) that the unit should be on it's own FCU.
2) that the float safety switch (which operates just before the container overflows) should be connected in the feed to the boiler switched live as you suggest, to turn it off, or alternatively to an alarm system (optional extra).

Even though this is for the PH model, the unit seems to be very similar, if not the same:

https://diversitech.global/storage/app/media/DataSheets/Installation%20Instructions/PH-20L-STA-instruction-manual.pdf

I couldn't see the equivalent document for a PR model - you could phone them to check if these instructions apply?