This includes areas like unconditioned attics garages and crawlspaces.
Hvac duct smoke test procedure.
Yes if the duct detector cannot be.
The only time duct testing is required is when parts of the hvac system are outside of the conditioned envelope.
Leakage test procedures shall follow the outlines and classifications in the smacna hvac duct leakage.
Smacna hvac air duct leakagg e test manual first edition 1985 ashrae 90 1 proposed.
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Ansi smacna hvac air duct leakage test manual.
Hvac smoke testing with superior smoke smoke testing effectively and inexpensively reveals leaks and other faults in heat ing and air conditioning duct work.
Portable smoke tester is connected to the supply and return sections of the duct work.
And all connections between the flowmeter and the duct for all sensible leaks.
Hvac air duct leakage test manual.
Smoke generator test system.
Flow rangeflow range.
A smoke bomb test may be used to identify actual leak sources.
Cid iconsiderations maximize.
Test proceduretest procedure 1 select duct section for testing 2 measure and calculate duct surface area 3 pg p seal all openings except one.
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.
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.
The superior method of generating smoke by chemical reaction eliminates costly equipment and time consuming operations in pinpointing hvac leaks.
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.
Representative sections totaling no less than 25 10 percent of the total installed duct area for that designated pressure classshall be tested.
