Conversion Table for

Damper Settings and Drag Factors

  Damper  Number

Normal    W/CBreeze    Drag Factor*

  1                    1.5                    100

  2                    3                        113

  3                    4.5                    125

  4                    6                        138

  5                    7.5                    150

  6                    9                        163

  7                    10                      175

  8                    na                      191

  9                    na                      203

  10                  na                      217

*Approximate values (Machines can vary, depending on fan and cage condition)