One user asked if there are documented cases where steam affected IAQ? He believes there are not. Other attendees also were not aware of any documented problems.
But a consulting engineer said that it’s difficult for him to consider anything chemically treated “because of our litigious society.”
An engineer commented that there is a perceived liability, not a proven liability.
The consulting engineer suggested that ASHRAE provide a guideline on these systems. Another engineer seconded this recommendation.
The consensus was that a definition is needed of what is a proper steam system.