Forum discussion
CI-2009 IEQc3.2: Construction IAQ Management Plan—Before Occupancy
We have couple of projects where the HVAC system is being served by Chilled Beams and Radiant Cooling. I would like to know is there any specific method for carrying out building flush out with 100% DOS system.
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Is it possible for the flush-out start date to vary by ventilation zone?
Do non-regularly occupied areas such as bathrooms and corridors have to be flushed-out?
For LEED NC addition projects, do existing non-renovated areas need to be flushed-out or tested?
For IAQ testing, how many sample points are necessary in non-mechanically ventilated spaces?
Dylan Connelly
Mechanical EngineerIntegral Group
LEEDuser Expert
472 thumbs up
July 6, 2012 - 11:34 am
There is no specific different method for going about a building flush out with 100% DOS. The only caveat is that typically a DOS system is between 20-50% of the size of a typically VAV system with min OA that would serve the same size project. As a result you may need to schedule more time in the construction schedule to finish the flush out over a typically VAV system capable of economizer. If the construction schedule is tight you can bring in temporary supplemental fans to speed up the flush out.