Supply/extract air volumes and input powers

Figure 1. Supply and extract air volumes
Table 1. Supply and extract air volumes - description of the diagram
Continuous line (—)Extract air
Broken line (- -)Supply air
SFP=Input power (total) (W) Air flow (max) (dm3 /s)

SFP rate (Specific Fan Power) recommended value <1.8 (kW/m3/s). When a lower total pressure is used, also the SFP of the speed is lowered.

Figure 2. Fan input power