Supply/extract air volumes and input powers

Figure 1. Supply and extract air volumes
SFP=Input power (total) (W) Air flow (max) ( dm3 /s)

The recommended SFP (Specific Fan Power) rate is <1.8 (kW m3/s). At a lower total pressure, the SFP rate is lower.

Table 1. Fan input power
l/sm3/hPaW
Min18659726
Mid6021611986
Max104373188311

You can calculate the operating-point-specific input power with the Vallox MySelecta product selection program.