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Crack open the big screw on the face of the pump and see if there's any air in the pump head causing the noise.
After that I'd suggest playing with the dial and see if a lower speed setting helps the problem. Do you know what the previous pump it replaced was? It's possible that the new pump is a more powerful pump than that which it replaced.
Nahguavkire
moocher
have had a grundfos pump ups2 15-50/60 recently fitted. it seems to be causing a bit of noise via vibration. the pipework in and out seems pretty solid, although its a mess back there.
have tried damping in a few places but theres no obvious one source
Can I do anything from the pump point of view - it seems to have 3 settings and a big screw on the face?
If I need to prevent as much vibration in the pipes and HWT are there any do's or donts?