Grundfoss Bronze pump

[SmogLee]

Can you adjust the speed on these?

If so, how?

Thanks 🙂

 

[Mike Jackson]

Which model is it?

Mike

 

[SmogLee]

Selectric?

It looks like it is 3 speed because it has a lable on it showing the different current usage ?? for 3 different settings

Ok, it's got a dial on the side which has 3 positions. Looks like it's this that does it, however, I can't see it, I can just feel it.

It's either on 1 or 3.

It's an underfloor heating circulation pump. It's the only pump on the system i.e. I don't have seperate pumps for each zone.

My Garden room takes a long time to heat up (screeded floor) is it worth upping the pump speed if it is on 1?

Or, just leave well alone?

 

[pnhsolutions]

put it in the middle and you know it is defo on setting 2
See how it performs! If it is worse then the pump was obviously on 3 in the first place and you should return it to its previous position. If it is better then try upping it again to make it perform even better.......

 

[SmogLee]

put it in the middle and you know it is defo on setting 2
See how it performs! If it is worse then the pump was obviously on 3 in the first place and you should return it to its previous position. If it is better then try upping it again to make it perform even better.......

It was on 3... I'm trying it on 2 now, it's a lot quieter.

I'll see how it performs.