| Installation category |
|
| Efficiency category |
|
| Closed-loop speed control |
|
| Specific ratio* |
|
| *Specific ratio = 1 + psf / 100 000 |
| |
Actual |
Request 2013 |
Request 2015 |
| Overall efficiency ηe |
|
|
|
| Efficiency grade N |
|
|
|
| Power input Pe |
kW |
|
| Air flow qV |
m3/h |
|
| Pressure increase total |
Pa |
|
| Speed n |
min-1 |
|
| Data established at point of optimum efficiency |
|