Retrotec FanTestic Integrity (Venting Calculator) - Manual (Page 25)

rev-2014-10-27
Page 25 of 29
©Retrotec Inc. 2012
2.5 Enter performance criteria
2.5.1 Case of “Descending interface” as discharge model

“Enclosure pressure limit”
Enter the pressure limit for the enclosure. Any peak pressure higher than this value is
expected to result in structural damage.

“Protected height”
Enter the protected height (the highest level of combustibles). This height is usually
measured to the top of the equipment you are trying to protect.

“Specified hold time”
The required Hold time for a passing test, also known as the “hold time”.
2.5.2 Case of “Continuous mixing” as discharge model

“Enclosure pressure limit”
Enter the pressure limit for the enclosure. Any peak pressure higher than this value is
expected to result in structural damage.

“Minimum concentration”
The final concentration in the enclosure at the end of the hold time

“Specified hold time”
The required Hold time for a passing test, also known as the “hold time”.
3 Calculate the maximum enclosure leakage to maintain the
specified hold time
Click the “Calculate” button once all the data is entered in order to view the results; gray boxes show
the calculated results and are not editable.