Low- Flow Testing - Kanomax DALT 6900 Operation Manual

3.3.Low- flow testing

Low- flow testing takes nozzles as the tool for Duct leakage flow measuring. Install the low-flow nozzles to
the blower outlet, tight locking the cam lock adaptor. Connect the pressure tap of the nozzle to the Differential
pressure flow port of the controller cabinet. And same color hose-tap connection please.
1. Duct testing under Positive pressure: Connect the flexible tubing to the flow outlet side of the nozzlethen tight
lock.
2. Duct testing under Negative pressure: Connect the flexible tubing to the flow inlet side of the Fan then tight
lock.
Low-flow Duct testing
under positive pressure
Duct Air Leakage Tester Operation Manual Ver.3
Flow Outlet
Flow inlet
Nozzle
Flow Outlet
Low-flow Duct testing
under Negative pressure
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