Samsung CNH 4DB Series Technical Data Book page 42

8. Temperature and air flow distribution
Duct S
External Static Pressure(
＜
0.8
Upper limit of
external
0.7
static pressure
0.6
0.5
0.4
0.3
LOW
0.2
0.1
0
400 500 600
Air Flow Rate [CFM]
) Option Code
Lower limit of
external
static pressure
700 800 900 1000 1100