Hvac Duct Smoke Test Procedure

The only time duct testing is required is when parts of the hvac system are outside of the conditioned envelope.

Hvac duct smoke test procedure.

All boots are temporarily sealed by either the ac contractor or authorized smoke testing personnel. For duct leakage testing the standard pressure used is 25 pascals which is close to the operating pressure of a typical duct system. Cid iconsiderations maximize. Hvac smoke testing with superior smoke smoke testing effectively and inexpensively reveals leaks and other faults in heat ing and air conditioning duct work.

And all connections between the flowmeter and the duct for all sensible leaks. 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. Please click the red subscribe button or here. Smacna hvac air duct leakagg e test manual first edition 1985 ashrae 90 1 proposed.

Leakage test procedures shall follow the outlines and classifications in the smacna hvac duct leakage. To ensure that smoke testing is adequately implemented the following protocol has been established and should not be deviated from. If necessary apply a soap solution to locate small leaks. The superior method of generating smoke by chemical reaction eliminates costly equipment and time consuming operations in pinpointing hvac leaks.

Smoke generator test system. 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. This includes areas like unconditioned attics garages and crawlspaces. Flow rangeflow range.

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. Yes if the duct detector cannot be. Representative sections totaling no less than 25 10 percent of the total installed duct area for that designated pressure classshall be tested.

Test proceduretest procedure 1 select duct section for testing 2 measure and calculate duct surface area 3 pg p seal all openings except one.