Most airflow through one doorway. Ideal for testing warehouses, large stores or office buildings. Hi-Power fans have a much wider flow range, which allows a multi-point test to be completed automatically without ever having to change fan ranges. A huge time saver that also gives more accurate results. Includes three Model 6000 Calibrated Fans in one Large Cloth panel door frame system. It will blow large quantities of air to test Commercial, Multi-Family or High Rise buildings. But has 1 hp fans, not ¾ hp fans found in all other blower door systems. In addition to power, the other advantage is speed stability which is near perfect since it uses variable frequency drives to power the fan motors. Run only a single Ethernet cable from test area to the laptop to control your test, no extended umbilicals needed.
Who uses it?