Supply/extract air volumes and input powers

Abbreviations used in the table have been explained below:

Continuous line (—)
Extract air
Broken line (┄)
Supply air

SFP = Input power (total) (W) Air flow specified in the ventilation plan (extract l/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 1. Supply and extract air volumes
Figure 2. Supply and extract air volumes - VKL model
Figure 3. Input power
Figure 4. Input power - VKL model