Balancing

[Woodgnome]

Struggling to get my extract rates anywhere near regs, ( on boost)  even if I screw the centre part right in, there is still too much airflow. Guessing these white bits are used to restrict even further, but can't figure out where they fit.

Readings are all over the place, might be because it's quite windy outside?

Any ideas please.

 

 

 

[readiescards]

Took me many days to get decent set off readings as seemed very dependent on outside wind conditions.

 

I did ask BPC what those bits were for and they answered in another thread on here. I forgot what they said as it was not applicable to me so I binned the bits

[Woodgnome]

Just checking my calcs.

150mm diameter duct that im using to hold the anemometer in, which gives an area of 0.01767sq M. I've rounded it off to 0.017 when I put the area into the Testo anemometer.

Reading on the anemometer is selected for m3/h x 10.

Does this mean a reading of say 2.345 is actually 23.45?

Thats how I'm reading it?

Edited January 21, 2018 by Woodgnome

[MikeSharp01]

Your rounding could a bit of an issue as it is nearer 0.018 than 0.017 so it is reading a lower flow rate than actual, if my brain is working today - not sure it is, then it is a 6% error - might help to get  closer to correct. The x10 thing sounds right but check the manual to be sure I guess. 

[le-cerveau]

If you add up all your readings and compare to what the unit says it is extracting, what is the difference?

If everything to too high, just reduce the flow in the unit.

Have you done any estimations of what the flows should be initially.

[Woodgnome]

Thanks, instructions on anemometer don't mention anything about the x10 part.

Lot less  windy today so I'll try again and round up to 0.018 as mike suggests.

Only flow rates I have are the ones BPC gave me so im just going by these.

Thanks for the replies.