While the potential sources of agents that can
cause pitting corrosion in indoor coils are numerous, there is increasing evidence showing the
home environment to be a primary contributor to
coil corrosion. The trend in home construction is
to improve energy efficiency by making homes
“tighter.” This decreased ventilation results in
higher concentration levels of indoor contaminants. In addition, environmental refrigerant mandates now heighten the awareness that all leaks
be located and repaired.