Hvac Duct Smoke Test Procedure

Smoke generator test system.

Hvac duct smoke test procedure. Flow rangeflow range. The superior method of generating smoke by chemical reaction eliminates costly equipment and time consuming operations in pinpointing hvac leaks. This means that when we measure say 120 cubic feet per minute of duct leakage at 25 pascals written 120 cfm25 that number is a pretty good estimate of how much air leaks out of the duct system while it s. For duct leakage testing the standard pressure used is 25 pascals which is close to the operating pressure of a typical duct system.

This includes areas like unconditioned attics garages and crawlspaces. Leakage test procedures shall follow the outlines and classifications in the smacna hvac duct leakage. Portable smoke tester is connected to the supply and return sections of the duct work. A smoke bomb test may be used to identify actual leak sources.

Representative sections totaling no less than 25 10 percent of the total installed duct area for that designated pressure classshall be tested. Please click the red subscribe button or here. And all connections between the flowmeter and the duct for all sensible leaks. The only time duct testing is required is when parts of the hvac system are outside of the conditioned envelope.

Smacna hvac air duct leakagg e test manual first edition 1985 ashrae 90 1 proposed. Hvac smoke testing with superior smoke smoke testing effectively and inexpensively reveals leaks and other faults in heat ing and air conditioning duct work. Ansi smacna hvac air duct leakage test manual. All boots are temporarily sealed by either the ac contractor or authorized smoke testing personnel.

Yes if the duct detector cannot be. To ensure that smoke testing is adequately implemented the following protocol has been established and should not be deviated from. Hvac air duct leakage test manual. If any supply or return duct chases flexible lines or air handler units are in these areas by iecc 2015 code a duct leakage test is required.

If i supply the duct smoke detector power it and connect it to the fire alarm system does the hvac contractor still need to install a remote test station.