Retrotec Commercial 441 and 451 DucTester Manual de usuario descargar pdf (Pagina 37)

Page 37 of 56

©Retrotec Inc. 2015

Leakage Factor from the formula

F= C

L

x P

0.65

Where:

C

L

is the Leakage Class

P is the Test Pressure in in WC

0.65 is the exponent.

Example:

C

L

=12

P =2.0 in WC

0.65 is the exponent.

F=12 x 2.0 0.65 =18.83 CFM per 100 square feet.

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