Types of duct leakage tests – Retrotec Commercial 441 and 451 DucTester User Manual
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©Retrotec Inc. 2015
2. Types of Duct Leakage Tests
Locate the step by step Quick Guide that came with your equipment or access it a
Figure 1: DucTester setup, including tubing locations and necessary connections.
In all tests, ducts are first pressurized and the leakage rate measured at a test pressure. In some
geographic areas, that test if followed by a depressurization test. Readings are usually written down but
may have to be recorded over a prolonged period and the data logged. Retrotec FanTestic software
performs that task and provides a formatted report. Data can be logged automatically or entered
manually.