Abbreviations used in the table have been explained below:
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A — Pressure loss in ducts. Total pressure (Pa)
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B — Volume flow rate (dm3/s)
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Continuous line (—) — Extract air
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Broken line (┄) — Supply air
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SFP =
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 43. Supply and extract air volumes
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Figure 44. Supply and extract air volumes - VKL model
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Figure 45. Input power
Figure 46. Input power - VKL model
