Test notes and deviations from test method – Retrotec FanTestic (ATTMA) User Manual
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rev-2014-10-27
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in any data set if any data has been changed in order to calculate and view the
current results.
8.1 Test notes and deviations from test method
The tester can note any complaints, temporary air sealing, any deviations from standard methods,
building set up, and HVAC systems present.
8.2 Summary Results – combined average of test data sets
If both depressurization and pressurization test sets are completed, the results will be provided as an
average of all the data set results. The average of the results from each test set are used to create the
entries in the summary table.
The reason behind performing an air leakage test in both directions is to average out any potential
pressure problems there might be in one direction over the other (like blowing open a damper in one
direction, but sucking it closed it in the other).